MostPopular Class Reference
Most-popular item recommender. More...
Public Member Functions | |
| override void | AddFeedback (int user_id, int item_id) |
| virtual void | AddItem (int item_id) |
| virtual void | AddUser (int user_id) |
| virtual bool | CanPredict (int user_id, int item_id) |
| Check whether a useful prediction can be made for a given user-item combination. | |
| Object | Clone () |
| create a shallow copy of the object | |
| override void | LoadModel (string filename) |
| Get the model parameters from a file. | |
| override double | Predict (int user_id, int item_id) |
| Predict rating or score for a given user-item combination. | |
| override void | RemoveFeedback (int user_id, int item_id) |
| override void | RemoveItem (int item_id) |
| virtual void | RemoveUser (int user_id) |
| override void | SaveModel (string filename) |
| Save the model parameters to a file. | |
| override string | ToString () |
| Return a string representation of the recommender. | |
| override void | Train () |
| Learn the model parameters of the recommender from the training data. | |
Protected Attributes | |
| int[] | view_count |
| View count. | |
Properties | |
| virtual PosOnlyFeedback | Feedback [get, set] |
| the feedback data to be used for training | |
| int | MaxItemID [get, set] |
| Maximum item ID. | |
| int | MaxUserID [get, set] |
| Maximum user ID. | |
Detailed Description
Most-popular item recommender.
Items are weighted by how often they have been seen in the past.
This method is not personalized. This engine supports online updates.
Member Function Documentation
| virtual bool CanPredict | ( | int | user_id, | |
| int | item_id | |||
| ) | [virtual, inherited] |
Check whether a useful prediction can be made for a given user-item combination.
- Parameters:
-
user_id the user ID item_id the item ID
- Returns:
- true if a useful prediction can be made, false otherwise
Implements IRecommender.
| Object Clone | ( | ) | [inherited] |
create a shallow copy of the object
| override void LoadModel | ( | string | filename | ) | [virtual] |
Get the model parameters from a file.
- Parameters:
-
filename the name of the file to read from
Implements ItemRecommender.
| override double Predict | ( | int | user_id, | |
| int | item_id | |||
| ) | [virtual] |
Predict rating or score for a given user-item combination.
- Parameters:
-
user_id the user ID item_id the item ID
- Returns:
- the predicted score/rating for the given user-item combination
Implements ItemRecommender.
| override void SaveModel | ( | string | filename | ) | [virtual] |
Save the model parameters to a file.
- Parameters:
-
filename the name of the file to write to
Implements ItemRecommender.
| override string ToString | ( | ) |
Return a string representation of the recommender.
The ToString() method of recommenders should list the class name and all hyperparameters, separated by space characters.
Implements IRecommender.
Member Data Documentation
int [] view_count [protected] |
View count.
Property Documentation
virtual PosOnlyFeedback Feedback [get, set, inherited] |
the feedback data to be used for training
int MaxItemID [get, set, inherited] |
Maximum item ID.
int MaxUserID [get, set, inherited] |
Maximum user ID.
The documentation for this class was generated from the following file:
- MostPopular.cs
