Outranking-PrefRank_scores

alternatives

Alternatives to consider.

The input value should be a valid XMCDA document whose main tag is <alternatives>.

preferences

Aggregated preferences matrix.

The input value should be a valid XMCDA document whose main tag is <alternativesComparisons>.

parameters

Parameter specifies the algorithm to calculate ranking. There are three algorithms to choose from: PageRank, HITS and Salsa.

The input value should be a valid XMCDA document whose main tag is <methodParameters>. It must have the following form:

<methodParameters>
        <parameter id="algorithm_type" name="algorithm_type">
                <value>
                        <label>%1</label>
                </value>
        </parameter>
        <parameter id="number_of_iteration" name="number_of_iteration">
                <value>
                        <integer>%2</integer>
                </value>
        </parameter>
        <parameter id="check_convergence" name="check_convergence">
                <value>
                        <boolean>%3</boolean>
                </value>
        </parameter>
        <parameter id="early_stopping" name="early_stopping">
                <value>
                        <boolean>%4</boolean>
                </value>
        </parameter>
</methodParameters>

where:

• %1 is a parameter named “algorithm type”. It can have the following values:

  • prefrank_1: PrefRank I
  • prefrank_2: PrefRank II
  • prefrank_3: PrefRank III

  The default value is item0.

• %2 is a parameter named “number of iteration”. This is a int, and the value should conform to the following constraint: The value should be greater than 1. More formally, the constraint is:

  %3 > 1
  

  The default value is 100.

• %3 is a parameter named “Run averaging if not converge?”. This is a boolean. The default value is false.

• %4 is a parameter named “Earlier stop if converge?”. This is a boolean. The default value is true.

positive_flows

Positive outranking flows.

The returned value is a XMCDA document whose main tag is <alternativesValues>.

negative_flows

Negative outranking flows.

The returned value is a XMCDA document whose main tag is <alternativesValues>.

total_flows

Final flows computed from the given data.

The returned value is a XMCDA document whose main tag is <alternativesValues>.

ranking

PrefRank scores computed from the given data.

The returned value is a XMCDA document whose main tag is <alternativesComparisons>.

messages

Messages or errors generated by this module.

The returned value is a XMCDA document whose main tag is <methodMessages>.