C# Class MyMediaLite.ItemRecommendation.Prediction

Class that contains static methods for item prediction

Exibir arquivo Open project: zenogantner/MML-KDD

Public Methods

Method	Description
PredictItems ( IRecommender recommender, int user_id, ICollection relevant_items ) : int[]	Predict items for a given user
PredictItems ( IRecommender recommender, int user_id, int max_item_id ) : int[]	predict items for a specific users
WritePredictions ( IRecommender recommender, IPosOnlyFeedback train, ICollection relevant_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, TextWriter writer ) : void	Write item predictions (scores) for all users to a TextWriter object
WritePredictions ( IRecommender recommender, IPosOnlyFeedback train, ICollection relevant_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, string filename ) : void	Write item predictions (scores) for all users to a file
WritePredictions ( IRecommender recommender, IPosOnlyFeedback train, IList relevant_users, ICollection relevant_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, TextWriter writer ) : void	Write item predictions (scores) to a TextWriter object
WritePredictions ( IRecommender recommender, IPosOnlyFeedback train, IList relevant_users, ICollection relevant_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, string filename ) : void	Write item predictions (scores) to a file
WritePredictions ( IRecommender recommender, int user_id, ICollection relevant_items, ICollection ignore_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, TextWriter writer ) : void	Write item predictions (scores) to a TextWriter object

Method Details

PredictItems() public static method

Predict items for a given user

public static PredictItems ( IRecommender recommender, int user_id, ICollection relevant_items ) : int[]
recommender	IRecommender	the recommender to use
user_id	int	the numerical ID of the user
relevant_items	ICollection	a collection of numerical IDs of relevant items
return	int[]

PredictItems() public static method

predict items for a specific users

public static PredictItems ( IRecommender recommender, int user_id, int max_item_id ) : int[]
recommender	IRecommender	the object to use for the predictions
user_id	int	the user ID
max_item_id	int	the maximum item ID
return	int[]

WritePredictions() public static method

Write item predictions (scores) for all users to a TextWriter object

public static WritePredictions ( IRecommender recommender, IPosOnlyFeedback train, ICollection relevant_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, TextWriter writer ) : void
recommender	IRecommender	the to use for making the predictions
train	IPosOnlyFeedback	a user-wise containing the items already observed
relevant_items	ICollection	the list of candidate items
num_predictions	int	the number of items to return per user, -1 if there should be no limit
user_mapping	IEntityMapping	an object for the user IDs
item_mapping	IEntityMapping	an object for the item IDs
writer	System.IO.TextWriter	the to write to
return	void

WritePredictions() public static method

Write item predictions (scores) for all users to a file

public static WritePredictions ( IRecommender recommender, IPosOnlyFeedback train, ICollection relevant_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, string filename ) : void
recommender	IRecommender	the to use for making the predictions
train	IPosOnlyFeedback	a user-wise containing the items already observed
relevant_items	ICollection	the list of candidate items
num_predictions	int	the number of items to return per user, -1 if there should be no limit
user_mapping	IEntityMapping	an object for the user IDs
item_mapping	IEntityMapping	an object for the item IDs
filename	string	the name of the file to write to
return	void

WritePredictions() public static method

Write item predictions (scores) to a TextWriter object

public static WritePredictions ( IRecommender recommender, IPosOnlyFeedback train, IList relevant_users, ICollection relevant_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, TextWriter writer ) : void
recommender	IRecommender	the to use for making the predictions
train	IPosOnlyFeedback	a user-wise containing the items already observed
relevant_users	IList	a list of users to make recommendations for
relevant_items	ICollection	the list of candidate items
num_predictions	int	the number of items to return per user, -1 if there should be no limit
user_mapping	IEntityMapping	an object for the user IDs
item_mapping	IEntityMapping	an object for the item IDs
writer	System.IO.TextWriter	the to write to
return	void

WritePredictions() public static method

Write item predictions (scores) to a file

public static WritePredictions ( IRecommender recommender, IPosOnlyFeedback train, IList relevant_users, ICollection relevant_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, string filename ) : void
recommender	IRecommender	the to use for making the predictions
train	IPosOnlyFeedback	a user-wise containing the items already observed
relevant_users	IList	a list of users to make recommendations for
relevant_items	ICollection	the list of candidate items
num_predictions	int	the number of items to return per user, -1 if there should be no limit
user_mapping	IEntityMapping	an object for the user IDs
item_mapping	IEntityMapping	an object for the item IDs
filename	string	the name of the file to write to
return	void

WritePredictions() public static method

Write item predictions (scores) to a TextWriter object

public static WritePredictions ( IRecommender recommender, int user_id, ICollection relevant_items, ICollection ignore_items, int num_predictions, IEntityMapping user_mapping, IEntityMapping item_mapping, TextWriter writer ) : void
recommender	IRecommender	the to use for making the predictions
user_id	int	the ID of the user to make recommendations for
relevant_items	ICollection	the list of candidate items
ignore_items	ICollection	a list of items for which no predictions should be made
num_predictions	int	the number of items to return per user, -1 if there should be no limit
user_mapping	IEntityMapping	an object for the user IDs
item_mapping	IEntityMapping	an object for the item IDs
writer	System.IO.TextWriter	the to write to
return	void