Information filters

The information filters allow the preprocessing of the information used in the diffusion simulations. RELISON provides the following ones:

Basic
Creator
Empty feature
Information feature
Information feature selection
Minimum information feature frequency
Num. information pieces
Only repropagated pieces
Relevant edges

Basic

This filter does not modify the data. It returns the same, original data.

Configuration file

Basic:

Creator

This filter only keeps information pieces with information about the user who created them.

Configuration file

Creator:

Empty feature

This filter adds an empty feature for each information piece without features.

Configuration file

Empty feature:

Information feature

This filter only leaves those information pieces containing a given feature.

Parameters

feature: the name of the feature

Configuration file

Information feature:
  feature:
    type: string
    value: feature_name

Information feature selection

This filter only keeps some information feature values, and the information pieces containing those values.

Parameters

feature: the name of the feature
file: a file containing the feature values to keep (one each line)

Configuration file

Information feature selection:
  feature:
    type: string
    value: feature_name
  file:
    type: string
    value: file_route

Minimum information feature frequency

This filter only keeps the information features which appear, at least, in a fixed number of information pieces. It only keeps information pieces containing those features.

Parameters

feature: the name of the feature
minValue: a file containing the feature values to keep (one each line)

Configuration file

Minimum information feature frequency:
  feature:
    type: string
    value: feature_name
  minValue:
    type: int
    value: value

Num. information pieces

This filter only keeps a limited number of information pieces for each user. In case a user has more user-generated contents, it selects the given amount randomly.

Parameters

numPieces: the maximum number of information pieces to keep for each user.

Configuration file

Num. information pieces:
  numPieces:
    type: int
    value: value

Only repropagated pieces

This filter keeps only those information pieces which have been propagated by users different than their creator in a previous diffusion process.

Configuration file

Only repropagated:

Relevant edges

If recommendation links have been added to the original graph, we only keep those recommended edges which were relevant.

Configuration file

Relevant edges: