MyMediaLite
3.11
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Interface for rating datasets More...
Public Member Functions | |
void | Add (int user_id, int item_id, byte rating) |
Add byte-valued rating to the collection More... | |
void | Add (int user_id, int item_id, float rating) |
Add float-valued rating to the collection More... | |
float | Get (int user_id, int item_id, ICollection< int > indexes) |
Directly access rating by user and item More... | |
int | GetIndex (int user_id, int item_id) |
Get index for a given user and item More... | |
int | GetIndex (int user_id, int item_id, ICollection< int > indexes) |
Get index for given user and item More... | |
ISet< int > | GetItems (IList< int > indices) |
Get all items that are referenced by a given list of indices More... | |
ISet< int > | GetUsers (IList< int > indices) |
Get all users that are referenced by a given list of indices More... | |
void | InitScale () |
Initialize the Scale property More... | |
void | RemoveItem (int item_id) |
Remove all events related to a given item More... | |
void | RemoveUser (int user_id) |
Remove all events related to a given user More... | |
bool | TryGet (int user_id, int item_id, out float rating) |
Try to retrieve a rating for a given user-item combination More... | |
bool | TryGet (int user_id, int item_id, ICollection< int > indexes, out float rating) |
Try to retrieve a rating for a given user-item combination More... | |
bool | TryGetIndex (int user_id, int item_id, out int index) |
Try to get the index for given user and item More... | |
bool | TryGetIndex (int user_id, int item_id, ICollection< int > indexes, out int index) |
Try to get the index for given user and item More... | |
Properties | |
IList< int > | AllItems [get] |
all item IDs in the dataset More... | |
IList< int > | AllUsers [get] |
all user IDs in the dataset More... | |
float | Average [get] |
average rating in the dataset More... | |
IList< IList< int > > | ByItem [get] |
indices by item More... | |
IList< IList< int > > | ByUser [get] |
indices by user More... | |
new int | Count [get] |
IList< int > | CountByItem [get] |
count by item More... | |
IList< int > | CountByUser [get] |
count by user More... | |
IList< int > | Items [get] |
the item entries More... | |
int | MaxItemID [get] |
the maximum item ID in the dataset More... | |
int | MaxUserID [get] |
the maximum user ID in the dataset More... | |
IList< int > | RandomIndex [get] |
get a randomly ordered list of all indices More... | |
RatingScale | Scale [get] |
information about the scale of the ratings in the dataset More... | |
float | this[int user_id, int item_id] [get] |
Directly access rating by user and item More... | |
IList< int > | Users [get] |
the user entries More... | |
Interface for rating datasets
void Add | ( | int | user_id, |
int | item_id, | ||
byte | rating | ||
) |
Add byte-valued rating to the collection
user_id | the user ID |
item_id | the item ID |
rating | the rating |
Implemented in Ratings, and StaticByteRatings.
void Add | ( | int | user_id, |
int | item_id, | ||
float | rating | ||
) |
Add float-valued rating to the collection
user_id | the user ID |
item_id | the item ID |
rating | the rating |
Implemented in Ratings, StaticByteRatings, StaticRatings, and TimedRatings.
float Get | ( | int | user_id, |
int | item_id, | ||
ICollection< int > | indexes | ||
) |
Directly access rating by user and item
user_id | the user ID |
item_id | the item ID |
indexes | the indexes to look at |
Implemented in StaticByteRatings, and Ratings.
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inherited |
Get index for a given user and item
user_id | the user ID |
item_id | the item ID |
Implemented in DataSet.
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inherited |
Get index for given user and item
user_id | the user ID |
item_id | the item ID |
indexes | the indexes to look at |
Implemented in DataSet.
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inherited |
Get all items that are referenced by a given list of indices
indices | the indices to take into account |
Implemented in DataSet.
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inherited |
Get all users that are referenced by a given list of indices
indices | the indices to take into account |
Implemented in DataSet.
void InitScale | ( | ) |
Initialize the Scale property
Implemented in Ratings, and StaticByteRatings.
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inherited |
Remove all events related to a given item
item_id | the item ID |
Implemented in Ratings, DataSet, PosOnlyFeedback< T >, StaticRatings, and RatingsProxy.
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inherited |
Remove all events related to a given user
user_id | the user ID |
Implemented in Ratings, DataSet, PosOnlyFeedback< T >, StaticRatings, and RatingsProxy.
bool TryGet | ( | int | user_id, |
int | item_id, | ||
out float | rating | ||
) |
Try to retrieve a rating for a given user-item combination
user_id | the user ID |
item_id | the item ID |
rating | will contain the first rating encountered that matches the user ID and item ID |
Implemented in StaticByteRatings, and Ratings.
bool TryGet | ( | int | user_id, |
int | item_id, | ||
ICollection< int > | indexes, | ||
out float | rating | ||
) |
Try to retrieve a rating for a given user-item combination
user_id | the user ID |
item_id | the item ID |
indexes | the indexes to look at |
rating | will contain the first rating encountered that matches the user ID and item ID |
Implemented in StaticByteRatings, and Ratings.
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inherited |
Try to get the index for given user and item
user_id | the user ID |
item_id | the item ID |
index | will contain the index of the first event encountered that matches the user ID and item ID |
Implemented in DataSet.
|
inherited |
Try to get the index for given user and item
user_id | the user ID |
item_id | the item ID |
indexes | the indexes to look at |
index | will contain the index of the first event encountered that matches the user ID and item ID |
Implemented in DataSet.
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getinherited |
all item IDs in the dataset
|
getinherited |
all user IDs in the dataset
|
get |
average rating in the dataset
|
getinherited |
indices by item
Should be implemented as a lazy data structure
|
getinherited |
indices by user
Should be implemented as a lazy data structure
|
getinherited |
count by item
Should be implemented as a lazy data structure
|
getinherited |
count by user
Should be implemented as a lazy data structure
|
getinherited |
the item entries
|
getinherited |
the maximum item ID in the dataset
|
getinherited |
the maximum user ID in the dataset
|
getinherited |
get a randomly ordered list of all indices
Should be implemented as a lazy data structure
|
get |
information about the scale of the ratings in the dataset
|
get |
Directly access rating by user and item
user_id | the user ID |
item_id | the item ID |
the rating value for the given user and item
|
getinherited |
the user entries