DataSet Class Reference

Abstract dataset class that implements some common functions. More...

Inheritance diagram for DataSet:

List of all members.

Public Member Functions
void	BuildItemIndices ()
	Build the item indices.
void	BuildRandomIndex ()
	Build the random index.
void	BuildUserIndices ()
	Build the user indices.
	DataSet ()
	Default constructor.
abstract void	RemoveItem (int item_id)
	Remove all events related to a given item.
abstract void	RemoveUser (int user_id)
	Remove all events related to a given user.
Protected Attributes
IList< IList< int > >	by_item
	Rating indices organized by item.
IList< IList< int > >	by_user
	Rating indices organized by user.
Properties
IList< int >	AllItems [get]
	all item IDs in the dataset
IList< int >	AllUsers [get]
	all user IDs in the dataset
IList< IList< int > >	ByItem [get]
	indices by item
IList< IList< int > >	ByUser [get]
	indices by user
virtual int	Count [get]
IList< int >	Items [get, set]
	the item entries
int	MaxItemID [get, set]
	the maximum item ID in the dataset
double	MaxRating [get, set]
int	MaxUserID [get, set]
	the maximum user ID in the dataset
double	MinRating [get, set]
IList< int >	RandomIndex [get]
	get a randomly ordered list of all indices
IList< int >	Users [get, set]
	the user entries

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Detailed Description

Abstract dataset class that implements some common functions.

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Constructor & Destructor Documentation

DataSet

(

)

[inline]

Default constructor.

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Member Function Documentation

void BuildItemIndices

(

)

[inline]

Build the item indices.

Implements IDataSet.

void BuildRandomIndex

(

)

[inline]

Build the random index.

Implements IDataSet.

void BuildUserIndices

(

)

[inline]

Build the user indices.

Implements IDataSet.

abstract void RemoveItem

(

int

item_id

)

[pure virtual]

Remove all events related to a given item.

Parameters:

item_id

the item ID

Implements IDataSet.

Implemented in PosOnlyFeedback< T >, Ratings, and StaticRatings.

abstract void RemoveUser

(

int

user_id

)

[pure virtual]

Remove all events related to a given user.

Parameters:

user_id

the user ID

Implements IDataSet.

Implemented in PosOnlyFeedback< T >, Ratings, and StaticRatings.

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Member Data Documentation

IList<IList<int> > by_item [protected]

Rating indices organized by item.

IList<IList<int> > by_user [protected]

Rating indices organized by user.

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Property Documentation

IList<int> AllItems [get]

all item IDs in the dataset

Implements IDataSet.

IList<int> AllUsers [get]

all user IDs in the dataset

Implements IDataSet.

IList<IList<int> > ByItem [get]

indices by item

Should be implemented as a lazy data structure

Implements IDataSet.

IList<IList<int> > ByUser [get]

indices by user

Should be implemented as a lazy data structure

Implements IDataSet.

IList<int> Items [get, set]

the item entries

Implements IDataSet.

int MaxItemID [get, set]

the maximum item ID in the dataset

Implements IDataSet.

int MaxUserID [get, set]

the maximum user ID in the dataset

Implements IDataSet.

IList<int> RandomIndex [get]

get a randomly ordered list of all indices

Should be implemented as a lazy data structure

Implements IDataSet.

IList<int> Users [get, set]

the user entries

Implements IDataSet.

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The documentation for this class was generated from the following file:

• DataSet.cs