A B C D E F G H I K L M N O P Q R S T U V W

A

a - Variable in class netflix.utilities.IntDoublePair

a - Variable in class netflix.utilities.Pair

a - Variable in class netflix.utilities.Triple

AbstractModelBuilder - Class in netflix.algorithms.modelbased

AbstractModelBuilder() - Constructor for class netflix.algorithms.modelbased.AbstractModelBuilder

AbstractRecommender - Class in netflix.recommender

An abstract class that is the basis for each recommender's actual run.

AbstractRecommender() - Constructor for class netflix.recommender.AbstractRecommender

actionPerformed(ActionEvent) - Method in class netflix.ui.CoursesRecommenderGUI

actionPerformed method for ActionListener extension

actionPerformed(ActionEvent) - Method in class netflix.ui.MoviesRecommenderGUI

actionPerformed method for ActionListener extension

add(int, int, int) - Method in class netflix.recommender.AbstractRecommender

Adds an entry to the database.

add(int, int, int) - Method in class netflix.recommender.SVDUpdateRecommender

Adds a rating to the database.

add(double, double) - Method in class netflix.rmse.MAECalculator

add(double, double) - Method in class netflix.rmse.RMSECalculator

add(int, int, double) - Method in class netflix.rmse.RMSECalculator

addCommonComponentsToPane(Container) - Method in class netflix.ui.RecommenderGUI

Adds components to the main Course Recommender

addItem(Item) - Method in class netflix.ui.CoursesRecommenderGUI

Adds an item to the recommender with the current newUserId

addItemBtn - Variable in class netflix.ui.RecommenderGUI

addItemBtnLabel - Variable in class netflix.ui.RecommenderGUI

addItemList - Variable in class netflix.ui.RecommenderGUI

Add item

addMatrices(DoubleMatrix2D, DoubleMatrix2D) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Adds two matrices.

addRatingList - Variable in class netflix.ui.RecommenderGUI

addRatingsToList(String[]) - Method in class netflix.ui.RecommenderGUI

addToCust(short, int, byte) - Method in class netflix.memreader.MemReader

Adds an entry to the custToMovie hashtable.

addToMovies(short, int, byte) - Method in class netflix.memreader.MemReader

Adds an entry to the movieToCust hashtable.

addUser(DoubleMatrix1D) - Method in class netflix.algorithms.modelbased.svd.SVDUpdater

Perfoms the rank 1 modification that is necessary to add a user to the matrix.

addVectors(DoubleMatrix1D, DoubleMatrix1D) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Adds two vectors.

AdjCosineSimilarityMethod - Class in netflix.algorithms.modelbased.itembased.method

AdjCosineSimilarityMethod() - Constructor for class netflix.algorithms.modelbased.itembased.method.AdjCosineSimilarityMethod

algorithmsDesc - Variable in class netflix.ui.RecommenderGUI

algorithmsList - Variable in class netflix.ui.RecommenderGUI

allItems - Variable in class netflix.ui.RecommenderGUI

appendColToMatrix(DoubleMatrix2D) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Appends an additional column of zeros to the specified matrix.

appendToMatrix(DoubleMatrix2D, DoubleMatrix1D) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Appends a new column to the matrix A.

appendToVector(DoubleMatrix1D, double) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Appends the scalar b to the end of vector a.

apply(int, int) - Method in class netflix.algorithms.memorybased.rectree.ClusterCollection

Adds user first to cluster second.

applyToMoviePairs(IntObjectProcedure) - Method in class netflix.memreader.MemHelper

Applies the specified IntObjectProcedure to each key, value pair in the movieToCust hash table.

applyToUserPairs(IntObjectProcedure) - Method in class netflix.memreader.MemHelper

Applies the specified IntObjectProcedure to each key, value pair in the custToMovie hash table.

Association - Class in netflix.algorithms.association

Association(MemHelper) - Constructor for class netflix.algorithms.association.Association

Creates an Association predictor with just one level of association rules.

AssociationRecommender - Class in netflix.recommender

Uses association rules to recommend courses to take.

AssociationRecommender(String) - Constructor for class netflix.recommender.AssociationRecommender

AssociationRecommender(MemHelper) - Constructor for class netflix.recommender.AssociationRecommender

AverageRecommender - Class in netflix.recommender

Uses a simple global average for recommendations.

AverageRecommender(String) - Constructor for class netflix.recommender.AverageRecommender

B

b - Variable in class netflix.utilities.IntDoublePair

b - Variable in class netflix.utilities.Pair

browseBtn - Variable in class netflix.ui.RecommenderGUI

buildModel() - Method in class netflix.algorithms.modelbased.AbstractModelBuilder

Builds a model, and writes to database

buildModel(String) - Method in class netflix.algorithms.modelbased.AbstractModelBuilder

buildModel() - Method in class netflix.algorithms.modelbased.itembased.ItemBasedModelBuilder

buildModel(boolean, boolean) - Method in class netflix.algorithms.modelbased.itembased.ItemBasedModelBuilder

buildRules() - Method in class netflix.algorithms.association.Association

Builds the association rules for the underlying database.

C

CASE_AMPLIFICATION - Static variable in class netflix.algorithms.memorybased.database.Weight

CASE_AMPLIFICATION - Static variable in class netflix.algorithms.memorybased.memreader.FilterAndWeight

close() - Method in interface netflix.algorithms.modelbased.reader.DataReader

Closes and does necessary clean-up

close() - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

close() - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

close() - Method in interface netflix.algorithms.modelbased.writer.SimilarityWriter

Closes the writer

close() - Method in class netflix.algorithms.modelbased.writer.SimilarityWriterToFile

close() - Method in class netflix.algorithms.modelbased.writer.SimiliarityWriterToDB

close() - Method in class netflix.algorithms.modelbased.writer.UserSimKeeper

close() - Method in class netflix.recommender.ItemItemRecommender

closeConnection() - Method in class netflix.db.Database

cluster() - Method in class netflix.algorithms.memorybased.rectree.RecTree2

ClusterCollection - Class in netflix.algorithms.memorybased.rectree

Class to convert a hashtable from uid to cluster to an array of IntArrayLists representing each cluster.

ClusterCollection(int, MemHelper) - Constructor for class netflix.algorithms.memorybased.rectree.ClusterCollection

ClusterCollection(ArrayList<IntArrayList>, MemHelper) - Constructor for class netflix.algorithms.memorybased.rectree.ClusterCollection

compare(IntDoublePair, IntDoublePair) - Method in class netflix.algorithms.modelbased.itembased.ItemBasedModelBuilder.RatingComparator

compare(Item, Item) - Method in class netflix.ui.CoursesRecommenderGUI.CourseNameComparator

Sorts on: 1.

compare(Item, Item) - Method in class netflix.ui.ItemComparator

Sorts on: 1.

compare(Item, Item) - Method in class netflix.ui.RecommenderGUI.NameComparator

Sorts on: 1.

compareTo(IntDoublePair) - Method in class netflix.utilities.IntDoublePair

Compares IntDoublePair to another IntDoublePair o using the value of b.

con - Variable in class netflix.db.Database

constructRecTree(IntArrayList, int, double) - Method in class netflix.algorithms.memorybased.rectree.RecTree2

CORRELATION - Static variable in class netflix.algorithms.memorybased.database.Weight

CORRELATION - Static variable in class netflix.algorithms.memorybased.memreader.FilterAndWeight

CORRELATION_DEFAULT_VOTING - Static variable in class netflix.algorithms.memorybased.memreader.FilterAndWeight

CorrelationRecommender - Class in netflix.recommender

Sets up a basic memory-based recommender for movie data.

CorrelationRecommender(String) - Constructor for class netflix.recommender.CorrelationRecommender

Create a memory-based recommender using the file as the MemReader object.

CorrelationRecommender(MemHelper) - Constructor for class netflix.recommender.CorrelationRecommender

Create a memory-based recommender using a MemReader object.

CoursesRecommenderGUI - Class in netflix.ui

A GUI for a Courses Recommender using a serialized object with historical transcript data

CoursesRecommenderGUI(String, String) - Constructor for class netflix.ui.CoursesRecommenderGUI

Constructor

CoursesRecommenderGUI.CourseNameComparator - Class in netflix.ui

CoursesRecommenderGUI.CourseNameComparator() - Constructor for class netflix.ui.CoursesRecommenderGUI.CourseNameComparator

curUserLabel - Variable in class netflix.ui.RecommenderGUI

Current user

curUserSetBtn - Variable in class netflix.ui.RecommenderGUI

curUserStatusLabel - Variable in class netflix.ui.RecommenderGUI

curUserTextField - Variable in class netflix.ui.RecommenderGUI

customizeComponents(Container) - Method in class netflix.ui.CoursesRecommenderGUI

customizeComponents(Container) - Method in class netflix.ui.MoviesRecommenderGUI

customizeComponents(Container) - Method in class netflix.ui.RecommenderGUI

Customizes components for specific recommenders.

custToMovie - Variable in class netflix.memreader.MemReader

D

Database - Class in netflix.db

Database() - Constructor for class netflix.db.Database

Default constructor.

Database(String, String, String) - Constructor for class netflix.db.Database

More in-depth constructor for database

DatabaseExtensionExample - Class in netflix.db

An example of how to extend Database.java to work for you!

DatabaseExtensionExample() - Constructor for class netflix.db.DatabaseExtensionExample

DatabaseImpl - Class in netflix.algorithms.modelbased.itembased

DatabaseImpl() - Constructor for class netflix.algorithms.modelbased.itembased.DatabaseImpl

DatabaseImpl(String, String, String, String) - Constructor for class netflix.algorithms.modelbased.itembased.DatabaseImpl

DatabaseImpl(String, String, String, String, String) - Constructor for class netflix.algorithms.modelbased.itembased.DatabaseImpl

DataReader - Interface in netflix.algorithms.modelbased.reader

An interface to describe a data reader to read in movie data

DataReaderFromDB - Class in netflix.algorithms.modelbased.reader

A DataReader that reads in movies data from a database

DataReaderFromDB(DatabaseImpl) - Constructor for class netflix.algorithms.modelbased.reader.DataReaderFromDB

DataReaderFromMem - Class in netflix.algorithms.modelbased.reader

A DataReader that reads in movies data from a serialized object

DataReaderFromMem(MemHelper) - Constructor for class netflix.algorithms.modelbased.reader.DataReaderFromMem

dbName - Variable in class netflix.db.Database

DEFAULT_VOTING - Static variable in class netflix.algorithms.memorybased.database.Weight

DESCDISPLAYLENGTH - Static variable in class netflix.ui.RecommenderGUI

description - Variable in class netflix.ui.Item

deserialize(String) - Static method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVD

deserialize(String) - Static method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVDMovielens

Deserializes an IncrementalSVDMovielens object.

deserialize(String) - Static method in class netflix.algorithms.modelbased.writer.UserSimKeeper

deserialize(String) - Static method in class netflix.memreader.MemReader

Deserializes a previously serialized MemReader object.

displayMyItems() - Method in class netflix.ui.RecommenderGUI

Displays rated items

displayOutput() - Method in class netflix.ui.RecommenderGUI

Displays output and resets the scroll pane to top

divideVector(DoubleMatrix1D, double) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Divides a vector by a scalar.

E

equals(Object) - Method in class netflix.utilities.IntDoublePair

Tests whether another object is equal to this one.

F

FEATURE_FILE - Variable in class netflix.recommender.IncRecommender

Filter - Class in netflix.algorithms.memorybased.database

Filter crazy! WARNING: THIS CLASS IS DEPRECATED DUE TO THE MUCH-INCREASED SPEED OF MEMREADER ACCESS.

Filter() - Constructor for class netflix.algorithms.memorybased.database.Filter

Default constructor, opens a default database connection with a default Weight function.

Filter(int) - Constructor for class netflix.algorithms.memorybased.database.Filter

Opens a default database connection and a Weight function (with options).

Filter(String, String, String, String) - Constructor for class netflix.algorithms.memorybased.database.Filter

Opens a database with specified parameters and a default Weight function.

Filter(String, String, String, String, int) - Constructor for class netflix.algorithms.memorybased.database.Filter

Opens a database with specified parameters and a Weight function (with options).

FilterAndWeight - Class in netflix.algorithms.memorybased.memreader

A memory-based solution for recommendations for movie data.

FilterAndWeight(MemHelper) - Constructor for class netflix.algorithms.memorybased.memreader.FilterAndWeight

Creates a new FilterAndWeight with a given MemHelper, using correlation.

FilterAndWeight(MemHelper, int) - Constructor for class netflix.algorithms.memorybased.memreader.FilterAndWeight

Creates a new FilterAndWeight with a given MemHelper, using whatever options you want.

findSimilarity(DataReader, int, int) - Method in class netflix.algorithms.modelbased.itembased.method.AdjCosineSimilarityMethod

findSimilarity(DataReader, int, int) - Method in class netflix.algorithms.modelbased.itembased.method.PearsonSimilarityMethod

findSimilarity(DataReader, int, int) - Method in interface netflix.algorithms.modelbased.itembased.method.SimilarityMethod

Finds the similarity between two movies.

findUserSimilarity(DataReader, int, int) - Method in class netflix.algorithms.modelbased.itembased.method.AdjCosineSimilarityMethod

findUserSimilarity(DataReader, int, int) - Method in class netflix.algorithms.modelbased.itembased.method.PearsonSimilarityMethod

findUserSimilarity(DataReader, int, int) - Method in interface netflix.algorithms.modelbased.itembased.method.SimilarityMethod

formatItemForList(Item, boolean) - Method in class netflix.ui.CoursesRecommenderGUI

Formats an Item for displaying in a list

formatItemForList(Item) - Method in class netflix.ui.RecommenderGUI

Formats an Item for displaying in a list

FRAME_HEIGHT - Variable in class netflix.ui.RecommenderGUI

FRAME_WIDTH - Variable in class netflix.ui.RecommenderGUI

fullOuterJoinOnMoviesOrRating(int, int, boolean) - Method in class netflix.memreader.MemHelper

Full outer joins together the data from two uids or two mids, depending.

G

getAverage(int) - Method in class netflix.algorithms.memorybased.rectree.ClusterCollection

getAverageMovieRating(int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getAverageMovieRating(int) - Method in interface netflix.algorithms.modelbased.reader.DataReader

Gets the average rating for a particular movie

getAverageMovieRating(int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getAverageMovieRating(int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getAverageRatingForMovie(int) - Method in class netflix.algorithms.memorybased.database.MyDatabase

Gets the average rating given to a movie

getAverageRatingForMovie(int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getAverageRatingForMovie(int) - Method in class netflix.memreader.MemHelper

Returns the average rating for a particular movie

getAverageRatingForUser(int) - Method in class netflix.algorithms.memorybased.database.MyDatabase

Gets the average rating given by a user

getAverageRatingForUser(int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getAverageRatingForUser(int) - Method in interface netflix.algorithms.modelbased.reader.DataReader

Gets the average rating for a user

getAverageRatingForUser(int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getAverageRatingForUser(int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getAverageRatingForUser(int) - Method in class netflix.memreader.MemHelper

Returns the average rating for a particular user

getCluster(int) - Method in class netflix.algorithms.memorybased.rectree.ClusterCollection

getClusterByID(int) - Method in class netflix.algorithms.memorybased.rectree.RecTree2

Gets the specified cluster by its positional id.

getClusterByUID(int) - Method in class netflix.algorithms.memorybased.rectree.RecTree2

Gets the cluster containing the specified user.

getClusterIDByUID(int) - Method in class netflix.algorithms.memorybased.rectree.RecTree2

Gets the id for the cluster containing the specified user.

getClusters() - Method in class netflix.algorithms.memorybased.rectree.ClusterCollection

getClusterSize(int) - Method in class netflix.algorithms.memorybased.rectree.ClusterCollection

getCommonMovieRatAndAve(int, int) - Method in interface netflix.algorithms.modelbased.reader.DataReader

Gets all the common movie ratings and average ratings for two users

getCommonMovieRatAndAve(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getCommonMovieRatAndAve(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getCommonMovieRatings(int, int) - Method in interface netflix.algorithms.modelbased.reader.DataReader

Gets the ratings for common movies for two users

getCommonMovieRatings(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getCommonMovieRatings(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getCommonRatings(int, int) - Method in class netflix.algorithms.memorybased.database.MyDatabase

For two users, it returns all movies they rated in common

getCommonRatings(int, int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getCommonUserAverages(int, int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

Gets all the users who have seen two movies, and their ratings

getCommonUserRatAndAve(int, int) - Method in interface netflix.algorithms.modelbased.reader.DataReader

Gets the individual and average ratings for common users between two movies

getCommonUserRatAndAve(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getCommonUserRatAndAve(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getCommonUserRatings(int, int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

Gets the ratings of users common to two movies

getCommonUserRatings(int, int) - Method in interface netflix.algorithms.modelbased.reader.DataReader

Gets the ratings for common users between two movies

getCommonUserRatings(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getCommonUserRatings(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getConnection() - Method in class netflix.db.Database

getCustToMovie() - Method in class netflix.memreader.MemHelper

Returns the customer to movie hash table.

getDB() - Method in class netflix.algorithms.memorybased.database.Filter

UGLY HACK for testing purposes

getDbName() - Method in class netflix.db.Database

getDescription() - Method in class netflix.ui.Item

getGlobalAverage() - Method in class netflix.memreader.MemHelper

Returns the average rating in the dataset.

getId() - Method in class netflix.ui.Item

getIdAsInt() - Method in class netflix.ui.Item

getInputFile(Component) - Method in class netflix.ui.RecommenderGUI

Uses a JFileChooser to get the transcript file

getListOfMovies() - Method in class netflix.memreader.MemHelper

Returns the list of all mid/rating blocks for movies

getListOfUsers() - Method in class netflix.memreader.MemHelper

Returns the list of all uid/rating blocks for users

getMaxAndMinMovie() - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

Finds the maximum and minimum movie id's in the database

getMemReader() - Method in class netflix.memreader.MemHelper

Returns the MemReader object maintained by this MemHelper.

getMilliTime() - Method in class netflix.utilities.Timer227

Returns the elapsed time rounded to the nearest millisecond.

getMovieName(int) - Method in class netflix.memreader.MemHelper

Returns the movie name for a given mid.

getMovieRatingNums() - Method in class netflix.algorithms.memorybased.database.MyDatabase

Gets all movies and the number of times they have been rated

getMoviesForUser(int) - Method in class netflix.db.DatabaseExtensionExample

getMoviesName() - Method in class netflix.db.Database

getMoviesSeenByUser(int) - Method in class netflix.algorithms.memorybased.database.MyDatabase

Gets a list of users who have seen a particular movie

getMoviesSeenByUser(int) - Method in class netflix.memreader.MemHelper

Returns all movies/ratings that a particular user has rated.

getMovieToCust() - Method in class netflix.memreader.MemHelper

Returns the movie to customer hash table.

getNanoTime() - Method in class netflix.utilities.Timer227

Returns the elapsed time measured in nanoseconds.

getNumberOfMovies() - Method in interface netflix.algorithms.modelbased.reader.DataReader

Returns the number of movies

getNumberOfMovies() - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getNumberOfMovies() - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getNumberOfMovies() - Method in class netflix.memreader.MemHelper

Returns the number of movies

getNumberOfMoviesSeen(int) - Method in class netflix.memreader.MemHelper

Returns the number of movies seen by a particular user

getNumberOfUsers() - Method in interface netflix.algorithms.modelbased.reader.DataReader

Returns the number of users

getNumberOfUsers() - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getNumberOfUsers() - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getNumberOfUsers() - Method in class netflix.memreader.MemHelper

Returns the number of users

getNumberOfUsersWhoSawMovie(int) - Method in class netflix.memreader.MemHelper

Returns the number of users who saw a particular movie

getNumUsers() - Method in class netflix.algorithms.memorybased.database.MyDatabase

Returns the number of users in the database

getParser() - Method in class netflix.ui.TranscriptParser

Call to obtain a HTMLEditorKit.Parser object.

getRating(int, int) - Method in interface netflix.algorithms.modelbased.reader.DataReader

Get the rating for a user - movie pair

getRating(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getRating(int, int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getRating(int, int) - Method in class netflix.memreader.MemHelper

Returns the rating that the user gave the movie

getRating() - Method in class netflix.ui.Item

getRatingForUserAndMovie(int, int) - Method in class netflix.algorithms.memorybased.database.MyDatabase

Gets a rating for a uid and mid

getRatingForUserAndMovie(int, int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getRatingForUserAndMovie(int, int) - Method in class netflix.db.DatabaseExtensionExample

getRatingFromComposite(int) - Method in interface netflix.algorithms.modelbased.reader.DataReader

Gets the rating from a user-rating or movie-rating block (see movie MemHelper for more information)

getRatingFromComposite(int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromDB

getRatingFromComposite(int) - Method in class netflix.algorithms.modelbased.reader.DataReaderFromMem

getRatingsForMoviesSeenByUser(int) - Method in class netflix.algorithms.memorybased.database.MyDatabase

Gets the ratings for all movies seen by a user

getRatingsForMoviesSeenByUser(int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getRatingsName() - Method in class netflix.db.Database

getRatingSumForUser(int) - Method in class netflix.memreader.MemHelper

Returns the sum of the ratings for a particular user.

getRatingVector(int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getReadyForRecommendations(boolean) - Method in class netflix.ui.RecommenderGUI

Sets variables and GUI elements to be ready for recommendations

getRecBtn - Variable in class netflix.ui.RecommenderGUI

Get recommendations

getRecVec(int) - Method in class netflix.algorithms.association.Association

Calculates the recommendation vector for a user.

getSimilarities(int) - Method in class netflix.algorithms.modelbased.writer.UserSimKeeper

getSimilarity(int, int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getSimilarity(String, int, int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getSimilarMovies(int, boolean) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getStandardDeviationForMovie(int) - Method in class netflix.memreader.MemHelper

Calculates the standard deviation for a particular movie

getStandardDeviationForUser(int) - Method in class netflix.memreader.MemHelper

Calculates the standard deviation for a particular user

getSumByCust() - Method in class netflix.memreader.MemHelper

Returns the sumByCust hash table.

getSumByMovie() - Method in class netflix.memreader.MemHelper

Returns the sumByMovie hash table.

getTestingData(String) - Method in class netflix.algorithms.memorybased.database.MyDatabase

For testing

getTestingData(String) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

This is a specialized function to get testing data from a database, as in the movielens five-fold testing.

getTime() - Method in class netflix.utilities.Timer227

Returns the elapsed time rounded to the nearest second.

getTopNItems(ArrayList<Item>, int) - Static method in class netflix.utilities.RankingUtilities

Returns the top n Items of an Item list

getUnratedMovies(int) - Method in class netflix.recommender.AbstractRecommender

Given a user id, it finds what movies the user has *not* seen from among all the movies.

getUnratedMovies(int, ArrayList<Item>) - Method in class netflix.recommender.AbstractRecommender

Given a user id and a list of movies, it takes out those movies which have been rated by the user.

getUsersAndRatingsForMovie(int) - Method in class netflix.db.DatabaseExtensionExample

getUsersWhoSawMovie(int) - Method in class netflix.algorithms.memorybased.database.MyDatabase

Gets a list of users who have seen a particular movie

getUsersWhoSawMovie(int) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

getUsersWhoSawMovie(int) - Method in class netflix.memreader.MemHelper

Returns all users/ratings who have seen a particular movie.

growMatrix(DoubleMatrix2D) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Appends an additional row and column of zeros to the specified matrix.

H

hash(int) - Method in class netflix.algorithms.association.Association

Returns the index for a movie.

HelloDB - Class in netflix.db

HelloDB() - Constructor for class netflix.db.HelloDB

I

id - Variable in class netflix.ui.Item

IncRecommender - Class in netflix.recommender

Uses a serialized IncrementalSVDMovielens object to make predictions using the AbstractRecommender framework.

IncRecommender(String) - Constructor for class netflix.recommender.IncRecommender

Constructor.

IncRecommender(MemHelper) - Constructor for class netflix.recommender.IncRecommender

Constructor.

IncRecommender(MemHelper, String) - Constructor for class netflix.recommender.IncRecommender

Constructor.

IncrementalSVD - Class in netflix.algorithms.modelbased.svd.incremental

IncrementalSVD() - Constructor for class netflix.algorithms.modelbased.svd.incremental.IncrementalSVD

Default constructor.

IncrementalSVDMovielens - Class in netflix.algorithms.modelbased.svd.incremental

IncrementalSVDMovielens() - Constructor for class netflix.algorithms.modelbased.svd.incremental.IncrementalSVDMovielens

Default constructor.

initializeComponents(ActionListener) - Method in class netflix.ui.RecommenderGUI

innerJoinOnMoviesOrRating(int, int, boolean) - Method in class netflix.memreader.MemHelper

Inner joins together the data from two uids or two mids, depending.

inputFileDirection - Variable in class netflix.ui.RecommenderGUI

inputFileField - Variable in class netflix.ui.RecommenderGUI

inputFileInstruct - Variable in class netflix.ui.RecommenderGUI

Input file

IntDoublePair - Class in netflix.utilities

Simple pair consisting of an integer (id) and a double (rating).

IntDoublePair(int, double) - Constructor for class netflix.utilities.IntDoublePair

INVERSE_USER_FREQUENCY - Static variable in class netflix.algorithms.memorybased.database.Weight

Item - Class in netflix.ui

Item() - Constructor for class netflix.ui.Item

Item(String, String, double) - Constructor for class netflix.ui.Item

ItemBasedModelBuilder - Class in netflix.algorithms.modelbased.itembased

General class for writing an item-based model builder.

ItemBasedModelBuilder(DataReader, SimilarityWriter, SimilarityMethod) - Constructor for class netflix.algorithms.modelbased.itembased.ItemBasedModelBuilder

ItemBasedModelBuilder(DataReader, SimilarityWriter, SimilarityMethod, int) - Constructor for class netflix.algorithms.modelbased.itembased.ItemBasedModelBuilder

ItemBasedModelBuilder.RatingComparator - Class in netflix.algorithms.modelbased.itembased

ItemBasedModelBuilder.RatingComparator() - Constructor for class netflix.algorithms.modelbased.itembased.ItemBasedModelBuilder.RatingComparator

ItemComparator - Class in netflix.ui

ItemComparator() - Constructor for class netflix.ui.ItemComparator

ItemItemRecommender - Class in netflix.recommender

ItemItemRecommender(String, String, String, String, String, boolean) - Constructor for class netflix.recommender.ItemItemRecommender

itemsRecommended - Variable in class netflix.ui.RecommenderGUI

itemsToCheck - Variable in class netflix.ui.RecommenderGUI

itemsToCheckFound - Variable in class netflix.ui.RecommenderGUI

Boolean to indicate whether we have found items to rate or not.

K

kMeans(IntArrayList, int, double) - Method in class netflix.algorithms.memorybased.rectree.RecTree2

L

layout - Variable in class netflix.ui.RecommenderGUI

LEFT_MARGIN - Variable in class netflix.ui.RecommenderGUI

loadData(String) - Method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVD

Loads file containg all of the known ratings.

loadData(String) - Method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVDMovielens

Loads file containg all of the known ratings.

M

mae() - Method in class netflix.rmse.MAECalculator

MAECalculator - Class in netflix.rmse

MAECalculator() - Constructor for class netflix.rmse.MAECalculator

main(String[]) - Static method in class netflix.algorithms.memorybased.database.Recommender

main(String[]) - Static method in class netflix.algorithms.memorybased.memreader.Recommender

main(String[]) - Static method in class netflix.algorithms.modelbased.itembased.MovieLensDBItemBasedModelBuilder

main(String[]) - Static method in class netflix.algorithms.modelbased.itembased.MovieLensMemItemBasedModelBuilder

main(String[]) - Static method in class netflix.algorithms.modelbased.itembased.NetFlixItemBasedModelBuilder

main(String[]) - Static method in class netflix.algorithms.modelbased.pd.MovieLensUsersModelBuilder

main(String[]) - Static method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVD

main(String[]) - Static method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVDMovielens

main(String[]) - Static method in class netflix.db.HelloDB

main(String[]) - Static method in class netflix.memreader.MemReader

main(String[]) - Static method in class netflix.memreader.RemoveProbe

main(String[]) - Static method in class netflix.recommender.AssociationRecommender

main(String[]) - Static method in class netflix.recommender.AverageRecommender

main(String[]) - Static method in class netflix.recommender.ItemItemRecommender

main(String[]) - Static method in class netflix.recommender.OptimizedVSRecommender

main(String[]) - Static method in class netflix.recommender.PDRecommender

main(String[]) - Static method in class netflix.recommender.RecTreeRecommender

main(String[]) - Static method in class netflix.recommender.SVDUpdateRecommender

main(String[]) - Static method in class netflix.ui.RecommenderRunner

makeObj(String) - Method in class netflix.ui.RecommenderGUI

makeRecommendationMatrix() - Method in class netflix.algorithms.modelbased.svd.SVDUpdater

Creates a recommendation matrix from the singular value decomposition using the technique described in the paper "Application of Dimensionality Reduction in Recommender Systems - A Case Study" by Sarwar et al.

MatrixHelper - Class in netflix.algorithms.modelbased.svd

Provides utility functions for use with the Colt matrix package.

MatrixHelper() - Constructor for class netflix.algorithms.modelbased.svd.MatrixHelper

MemHelper - Class in netflix.memreader

MemHelper provides all the methods for retrieving, parsing, and joining data together from a MemReader object.

MemHelper(MemReader) - Constructor for class netflix.memreader.MemHelper

Constructs a new MemHelper that uses the specified MemReader for data

MemHelper(String) - Constructor for class netflix.memreader.MemHelper

Constructs a new MemHelper by loading the serialized MemReader from the specified file.

MemReader - Class in netflix.memreader

Stores a collection of movie ratings efficiently in memory.

MemReader() - Constructor for class netflix.memreader.MemReader

Default constructor.

MethodTimer - Class in netflix.utilities

This class can be used to profile program execution by keeping track of the time spent in each method and the average time per call.

MethodTimer() - Constructor for class netflix.utilities.MethodTimer

Default constructor.

mh - Variable in class netflix.recommender.AbstractRecommender

MovieLensDBItemBasedModelBuilder - Class in netflix.algorithms.modelbased.itembased

MovieLensDBItemBasedModelBuilder() - Constructor for class netflix.algorithms.modelbased.itembased.MovieLensDBItemBasedModelBuilder

MovieLensMemItemBasedModelBuilder - Class in netflix.algorithms.modelbased.itembased

MovieLensMemItemBasedModelBuilder() - Constructor for class netflix.algorithms.modelbased.itembased.MovieLensMemItemBasedModelBuilder

MovieLensUsersModelBuilder - Class in netflix.algorithms.modelbased.pd

MovieLensUsersModelBuilder() - Constructor for class netflix.algorithms.modelbased.pd.MovieLensUsersModelBuilder

moviesName - Variable in class netflix.db.Database

MoviesRecommenderGUI - Class in netflix.ui

A GUI for a Movies Recommender using a serialized object with movie ratings data

MoviesRecommenderGUI(String, String) - Constructor for class netflix.ui.MoviesRecommenderGUI

movieToCust - Variable in class netflix.memreader.MemReader

MyDatabase - Class in netflix.algorithms.memorybased.database

MyDatabase() - Constructor for class netflix.algorithms.memorybased.database.MyDatabase

MyDatabase(String, String, String, String) - Constructor for class netflix.algorithms.memorybased.database.MyDatabase

myItemsText - Variable in class netflix.ui.RecommenderGUI

N

netflix - package netflix

netflix.algorithms.association - package netflix.algorithms.association

netflix.algorithms.memorybased.database - package netflix.algorithms.memorybased.database

netflix.algorithms.memorybased.memreader - package netflix.algorithms.memorybased.memreader

netflix.algorithms.memorybased.rectree - package netflix.algorithms.memorybased.rectree

netflix.algorithms.modelbased - package netflix.algorithms.modelbased

netflix.algorithms.modelbased.itembased - package netflix.algorithms.modelbased.itembased

netflix.algorithms.modelbased.itembased.method - package netflix.algorithms.modelbased.itembased.method

netflix.algorithms.modelbased.pd - package netflix.algorithms.modelbased.pd

netflix.algorithms.modelbased.reader - package netflix.algorithms.modelbased.reader

netflix.algorithms.modelbased.svd - package netflix.algorithms.modelbased.svd

netflix.algorithms.modelbased.svd.incremental - package netflix.algorithms.modelbased.svd.incremental

netflix.algorithms.modelbased.writer - package netflix.algorithms.modelbased.writer

netflix.db - package netflix.db

netflix.memreader - package netflix.memreader

netflix.recommender - package netflix.recommender

netflix.rmse - package netflix.rmse

netflix.ui - package netflix.ui

netflix.utilities - package netflix.utilities

NetFlixItemBasedModelBuilder - Class in netflix.algorithms.modelbased.itembased

NetFlixItemBasedModelBuilder() - Constructor for class netflix.algorithms.modelbased.itembased.NetFlixItemBasedModelBuilder

NEW_STUD_ID - Variable in class netflix.ui.RecommenderGUI

newUserId - Variable in class netflix.ui.RecommenderGUI

O

open() - Method in class netflix.recommender.ItemItemRecommender

openConnection() - Method in class netflix.db.Database

OptimizedFilterAndWeight - Class in netflix.algorithms.memorybased.memreader

WARNING: THIS CODE NOT MEANT TO BE UNDERSTOOD BY THE LIKES OF MAN Okay in all seriousness this code is just a streamlined version of FilterAndWeight.

OptimizedFilterAndWeight(String) - Constructor for class netflix.algorithms.memorybased.memreader.OptimizedFilterAndWeight

Default constructor, opens a default database connection Sets the method to correlation.

OptimizedVSRecommender - Class in netflix.recommender

Warning: don't use this code! This is some very specific code that is used to run a Netflix prize run.

OptimizedVSRecommender(String) - Constructor for class netflix.recommender.OptimizedVSRecommender

outputText - Variable in class netflix.ui.RecommenderGUI

outputTextArea - Variable in class netflix.ui.RecommenderGUI

P

PADDING - Variable in class netflix.ui.RecommenderGUI

Pair - Class in netflix.utilities

Pair(int, int) - Constructor for class netflix.utilities.Pair

parse() - Method in class netflix.ui.TranscriptParser

Parses a transcript file and extracts courses etc.

parseFile(String) - Method in class netflix.memreader.RemoveProbe

Removes each user movie pair in the probe file from the MemReader object.

parseInputFileBtn - Variable in class netflix.ui.RecommenderGUI

parseRating(int) - Static method in class netflix.memreader.MemHelper

Returns the rating portion of a uid/rating or mid/rating block

parseStatus - Variable in class netflix.ui.RecommenderGUI

parseStatusLabel - Variable in class netflix.ui.RecommenderGUI

parseStatusMessageNo - Variable in class netflix.ui.RecommenderGUI

parseStatusMessageYes - Variable in class netflix.ui.RecommenderGUI

parseUserOrMovie(int) - Static method in class netflix.memreader.MemHelper

Returns the uid or mid portion of a uid/rating or mid/rating block

PDRecommender - Class in netflix.recommender

PDRecommender(String, String, boolean, boolean) - Constructor for class netflix.recommender.PDRecommender

Sets up access to the similarity tables and the (memory-based) database.

PearsonSimilarityMethod - Class in netflix.algorithms.modelbased.itembased.method

PearsonSimilarityMethod() - Constructor for class netflix.algorithms.modelbased.itembased.method.PearsonSimilarityMethod

predictRating(short, int) - Method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVDMovielens

Predicts the rating for a user/movie pair using all features that have been trained.

printClusters() - Method in class netflix.algorithms.memorybased.rectree.ClusterCollection

printMatrix(DoubleMatrix2D) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Prints a two dimensional matrix.

printMatrix(DoubleMatrix1D) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Prints a one dimensional matrix (i.e.

printOptions(int) - Static method in class netflix.algorithms.memorybased.database.Weight

Prints out the options being used for easy viewing

printOptions(int) - Static method in class netflix.algorithms.memorybased.memreader.FilterAndWeight

Prints out the options being used for easy viewing

printTimes() - Method in class netflix.utilities.MethodTimer

Prints all the timings managed by this MethodTimer.

printTopNItems(ArrayList<Item>, int) - Static method in class netflix.utilities.RankingUtilities

Prints the top n Items of an Item list.

printTopXMovies(int) - Method in class netflix.db.DatabaseExtensionExample

processTest(String, String) - Method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVD

Given an input file of data, will output properly formatted results.

Q

queryDB(String) - Method in class netflix.db.Database

R

r1 - Variable in class netflix.utilities.Triple

r2 - Variable in class netflix.utilities.Triple

rank(int, int) - Method in class netflix.algorithms.association.Association

Ranks a particular user and movie.

RankingUtilities - Class in netflix.utilities

RankingUtilities() - Constructor for class netflix.utilities.RankingUtilities

rankMovies(int, ArrayList<Item>) - Method in class netflix.recommender.AbstractRecommender

Takes in a list of Items (as movies) and ranks them using the recommender system.

rankMovies(int, ArrayList<Item>) - Method in class netflix.recommender.AssociationRecommender

Custom version of rankCourses that will run much faster than the normal rankCourses, for association rule checking.

rating - Variable in class netflix.ui.Item

ratingsName - Variable in class netflix.db.Database

readCourseFile(String) - Static method in class netflix.utilities.RankingUtilities

This reads a flattext file of courses and returns a series of Item objects for each.

readData(String) - Method in class netflix.memreader.MemReader

Reads a text file in the form mid,uid,rating and stores this data in the custToMovie and movieToCust hashtables.

readMovieFile(String) - Static method in class netflix.utilities.RankingUtilities

Reads in a movie name file.

readNames(String) - Method in class netflix.memreader.MemHelper

Reads a serialzed OpenIntObjectHashMap containing a mapping from mid to movie name.

recommend(int, int) - Method in class netflix.algorithms.memorybased.database.Filter

Basic recommendation method for memory-based algorithms.

recommend(int, int) - Method in class netflix.algorithms.memorybased.memreader.FilterAndWeight

Basic recommendation method for memory-based algorithms.

recommend(int, int) - Method in class netflix.algorithms.memorybased.memreader.OptimizedFilterAndWeight

Basic recommendation method for memory-based algorithms.

recommend(int, int) - Method in class netflix.algorithms.modelbased.svd.SVDUpdater

Returns the rating predicted for movie mid by user uid.

recommend(int, int, String) - Method in class netflix.recommender.AbstractRecommender

Recommends a rating based on a uid and mid.

recommend(int, int, String) - Method in class netflix.recommender.AssociationRecommender

recommend(int, int, String) - Method in class netflix.recommender.AverageRecommender

recommend(int, int, String) - Method in class netflix.recommender.CorrelationRecommender

recommend(int, int, String) - Method in class netflix.recommender.IncRecommender

Predicts the rating for movie targetMovie by user activeUser.

recommend(int, int, String) - Method in class netflix.recommender.ItemItemRecommender

recommend(int, int, String) - Method in class netflix.recommender.OptimizedVSRecommender

recommend(int, int, String) - Method in class netflix.recommender.PDRecommender

recommend(int, int, String) - Method in class netflix.recommender.RecTreeRecommender

Basic recommendation method for memory-based algorithms.

recommend(int, int, String) - Method in class netflix.recommender.SVDRecommender

Predicts the rating that activeUser will give targetMovie.

recommend(int, int, String) - Method in class netflix.recommender.SVDUpdateRecommender

Returns the rating that we predict user uid will give moive mid.

Recommender - Class in netflix.algorithms.memorybased.database

Contains main and methods for garnering recommendations.

Recommender() - Constructor for class netflix.algorithms.memorybased.database.Recommender

Recommender - Class in netflix.algorithms.memorybased.memreader

Dan's personal testing class.

Recommender() - Constructor for class netflix.algorithms.memorybased.memreader.Recommender

RecommenderGUI - Class in netflix.ui

A generic GUI for a recommender system, to be extended by Movies and Courses GUI classes

RecommenderGUI() - Constructor for class netflix.ui.RecommenderGUI

RecommenderGUI.NameComparator - Class in netflix.ui

A comparator to sort items by their descriptions

RecommenderGUI.NameComparator() - Constructor for class netflix.ui.RecommenderGUI.NameComparator

RecommenderRunner - Class in netflix.ui

A sample driver program to start a recommender GUI

RecommenderRunner() - Constructor for class netflix.ui.RecommenderRunner

recommendFile(String, String) - Method in class netflix.recommender.AbstractRecommender

Given an input file of data, will output properly formatted results.

RecTree2 - Class in netflix.algorithms.memorybased.rectree

RecTree2(MemHelper) - Constructor for class netflix.algorithms.memorybased.rectree.RecTree2

Builds the RecTree and saves the resulting clusters.

RecTreeRecommender - Class in netflix.recommender

RecTreeRecommender(String) - Constructor for class netflix.recommender.RecTreeRecommender

removeFromItems(ArrayList<Item>, Item) - Method in class netflix.ui.RecommenderGUI

Removes, from an arraylist of items, an item that has the same id as the give item

removeFromList(IntArrayList, int) - Method in class netflix.memreader.RemoveProbe

Removes a specific user or movie id from an IntArrayList.

RemoveProbe - Class in netflix.memreader

Simple class to remove the probe data from a MemReader object containing the netflix training data.

RemoveProbe(String) - Constructor for class netflix.memreader.RemoveProbe

Constructs a RemoveProbe object and gets the hashes from the specified MemReader object.

reset() - Method in class netflix.algorithms.memorybased.memreader.FilterAndWeight

This should be run if you change the underlying database.

resetLowerRating(int) - Method in class netflix.recommender.PDRecommender

Allows user to reset the lower bound on ratings.

resetSigma(double) - Method in class netflix.recommender.PDRecommender

Allows the user to reset the parameter little sigma.

resetTimer() - Method in class netflix.utilities.Timer227

Resets the timer by setting startTime and currentTime to 0.

resetUpperRating(int) - Method in class netflix.recommender.PDRecommender

Allows the user to reset the upper bound on ratings.

resort() - Method in class netflix.recommender.AbstractRecommender

Resorts the values in the underlying database.

resort() - Method in class netflix.recommender.AssociationRecommender

resort() - Method in class netflix.recommender.CorrelationRecommender

resort() - Method in class netflix.recommender.SVDUpdateRecommender

This method is called after recommendations are added via the add method.

rmse() - Method in class netflix.rmse.RMSECalculator

RMSECalculator - Class in netflix.rmse

RMSECalculator() - Constructor for class netflix.rmse.RMSECalculator

RMSECalculator(Database) - Constructor for class netflix.rmse.RMSECalculator

RMSECalculator(Database, String) - Constructor for class netflix.rmse.RMSECalculator

S

SAVE_WEIGHTS - Static variable in class netflix.algorithms.memorybased.database.Weight

SAVE_WEIGHTS - Static variable in class netflix.algorithms.memorybased.memreader.FilterAndWeight

scrollPane - Variable in class netflix.ui.RecommenderGUI

serialize(String, IncrementalSVD) - Static method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVD

serialize(String, IncrementalSVDMovielens) - Static method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVDMovielens

Serializes an IncrementalSVDMovielns object

serialize(String, UserSimKeeper) - Static method in class netflix.algorithms.modelbased.writer.UserSimKeeper

serialize(String, MemReader) - Static method in class netflix.memreader.MemReader

Serializes a MemReader object so that it can be read back later.

setDbName(String) - Method in class netflix.db.Database

setDescription(String) - Method in class netflix.ui.Item

setFileName(String) - Method in class netflix.algorithms.modelbased.itembased.ItemBasedModelBuilder

setId(String) - Method in class netflix.ui.Item

setMoviesName(String) - Method in class netflix.db.Database

setNumMinMovies(int) - Method in class netflix.algorithms.modelbased.itembased.method.AdjCosineSimilarityMethod

setNumMinMovies(int) - Method in class netflix.algorithms.modelbased.itembased.method.PearsonSimilarityMethod

setNumMinMovies(int) - Method in interface netflix.algorithms.modelbased.itembased.method.SimilarityMethod

setNumMinUsers(int) - Method in class netflix.algorithms.modelbased.itembased.method.AdjCosineSimilarityMethod

setNumMinUsers(int) - Method in class netflix.algorithms.modelbased.itembased.method.PearsonSimilarityMethod

setNumMinUsers(int) - Method in interface netflix.algorithms.modelbased.itembased.method.SimilarityMethod

Sets the least number of users needed to call two items similar

setRating(double) - Method in class netflix.ui.Item

setRatingsName(String) - Method in class netflix.db.Database

setSimTableName(String) - Method in class netflix.algorithms.modelbased.itembased.DatabaseImpl

SimilarityMethod - Interface in netflix.algorithms.modelbased.itembased.method

Describes the similarity measure to be used by a ModelBuilder to build an item-based model

SimilarityWriter - Interface in netflix.algorithms.modelbased.writer

An interface to describe a way of writing similarity tables

SimilarityWriterToFile - Class in netflix.algorithms.modelbased.writer

A SimilarityWriter to write similarity values to a text file

SimilarityWriterToFile(String) - Constructor for class netflix.algorithms.modelbased.writer.SimilarityWriterToFile

SimiliarityWriterToDB - Class in netflix.algorithms.modelbased.writer

A SimilarityWriter that writes to a database

SimiliarityWriterToDB(DatabaseImpl, String) - Constructor for class netflix.algorithms.modelbased.writer.SimiliarityWriterToDB

size() - Method in class netflix.algorithms.memorybased.rectree.ClusterCollection

sortHashes() - Method in class netflix.memreader.MemReader

Sorts each entry in the movieToCust and custToMovie hashes to allow for efficient searching.

start(String) - Method in class netflix.utilities.MethodTimer

Starts a timer for the specfied method.

start() - Method in class netflix.utilities.Timer227

Starts the timer.

stop(String) - Method in class netflix.utilities.MethodTimer

Ends the tiemr for the specified method.

stop() - Method in class netflix.utilities.Timer227

Stops the timer and adds the elapsed time to currentTime.

subVectors(DoubleMatrix1D, DoubleMatrix1D) - Static method in class netflix.algorithms.modelbased.svd.MatrixHelper

Subtracts two vectors.

sumByCust - Variable in class netflix.memreader.MemReader

sumByMovie - Variable in class netflix.memreader.MemReader

SVDRecommender - Class in netflix.recommender

Recommends movies using the SVD-based technique described by Sarwar et.

SVDRecommender(String, String, int) - Constructor for class netflix.recommender.SVDRecommender

Constructor.

SVDRecommender(MemHelper, String, int) - Constructor for class netflix.recommender.SVDRecommender

Constructor.

SVDUpdater - Class in netflix.algorithms.modelbased.svd

This class implements the rank 1 updates to the singular value decomposition described in the paper "Fast Online SVD Revisions for Lightweight Recommender Systems" by Matthew Brand.

SVDUpdater(SingularValueDecomposition, int) - Constructor for class netflix.algorithms.modelbased.svd.SVDUpdater

Constructor.

SVDUpdateRecommender - Class in netflix.recommender

Frontend for the SVDUpdater class based on the paper "Fast Online SVD Revisions for Lightweight Recommender Systems" by Matthew Brand.

SVDUpdateRecommender(String, String) - Constructor for class netflix.recommender.SVDUpdateRecommender

Create a recommender using the file as the MemReader object.

SVDUpdateRecommender(MemHelper, String) - Constructor for class netflix.recommender.SVDUpdateRecommender

Create a recommender using a MemReader object.

T

testWithMemHelper(MemHelper) - Method in class netflix.algorithms.modelbased.svd.incremental.IncrementalSVDMovielens

Using RMSE as measurement, this will compare a test set (in MemHelper form) to the results gotten from the recommender

testWithMemHelper(MemHelper) - Method in class netflix.recommender.AbstractRecommender

Using RMSE as measurement, this will compare a test set (in MemHelper form) to the results gotten from the recommender

testWithMemHelper(String) - Method in class netflix.recommender.AbstractRecommender

Stub so one can test without having to initialize their own MemHelper object.

Timer227 - Class in netflix.utilities

The Timer227 class provides the means to measure the execution time of a portion of another Java program.

Timer227() - Constructor for class netflix.utilities.Timer227

Constructor.

toggleOutputBtn - Variable in class netflix.ui.RecommenderGUI

toggleOutputBtnLabelMy - Variable in class netflix.ui.RecommenderGUI

toggleOutputBtnLabelRec - Variable in class netflix.ui.RecommenderGUI

TOP_MARGIN - Variable in class netflix.ui.RecommenderGUI

toString() - Method in class netflix.ui.Item

TranscriptParser - Class in netflix.ui

TranscriptParser(String) - Constructor for class netflix.ui.TranscriptParser

Constructor

Triple - Class in netflix.utilities

A triple consisting of a pair of integers and a double.

Triple(int, int, double) - Constructor for class netflix.utilities.Triple

U

updateDB(String) - Method in class netflix.db.Database

updateMyItemsText() - Method in class netflix.ui.CoursesRecommenderGUI

updateMyItemsText() - Method in class netflix.ui.MoviesRecommenderGUI

updateMyItemsText() - Method in class netflix.ui.RecommenderGUI

Updates the myItemsText variable

UserSimKeeper - Class in netflix.algorithms.modelbased.writer

UserSimKeeper() - Constructor for class netflix.algorithms.modelbased.writer.UserSimKeeper

usersName - Variable in class netflix.algorithms.memorybased.database.MyDatabase

usersName - Variable in class netflix.algorithms.modelbased.itembased.DatabaseImpl

V

VECTOR_SIMILARITY - Static variable in class netflix.algorithms.memorybased.database.Weight

VECTOR_SIMILARITY - Static variable in class netflix.algorithms.memorybased.memreader.FilterAndWeight

VS_INVERSE_USER_FREQUENCY - Static variable in class netflix.algorithms.memorybased.memreader.FilterAndWeight

W

Weight - Class in netflix.algorithms.memorybased.database

Weight(MyDatabase) - Constructor for class netflix.algorithms.memorybased.database.Weight

Creates a default Weight object that simply uses correlation.

Weight(MyDatabase, int) - Constructor for class netflix.algorithms.memorybased.database.Weight

Creates a Weight object with options of which algorithms to use.

weight(int, int) - Method in class netflix.algorithms.memorybased.database.Weight

Weights two users, based upon the constructor's options.

write(int, int, double) - Method in interface netflix.algorithms.modelbased.writer.SimilarityWriter

Writes a similarity value for two movies

write(int, int, double) - Method in class netflix.algorithms.modelbased.writer.SimilarityWriterToFile

write(int, int, double) - Method in class netflix.algorithms.modelbased.writer.SimiliarityWriterToDB

write(int, int, double) - Method in class netflix.algorithms.modelbased.writer.UserSimKeeper

Converted to write similarities between USERS - keeps old form to work w/ ItemBasedModelBuilder

writeUserSim(int, int, double) - Method in class netflix.algorithms.modelbased.writer.UserSimKeeper

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