Class P

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable
    Direct Known Subclasses:
    PL

    public class P
    extends BasicModel
    This class implements the P basic model for randomness.
    Author:
    Gianni Amati, Ben He, Vassilis Plachouras
    See Also:
    Serialized Form
    • Constructor Summary

      Constructors 
      Constructor Description
      P()
      A default constructor.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.String getInfo()
      Returns the name of the model.
      double score​(double tf, double documentFrequency, double termFrequency, double keyFrequency, double documentLength)
      This method provides the contract for implementing weighting models.
      • Methods inherited from class java.lang.Object

        equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • modelName

        protected java.lang.String modelName
        The name of the model.
    • Constructor Detail

      • P

        public P()
        A default constructor.
    • Method Detail

      • getInfo

        public java.lang.String getInfo()
        Returns the name of the model.
        Specified by:
        getInfo in class BasicModel
        Returns:
        the name of the model
      • score

        public double score​(double tf,
                            double documentFrequency,
                            double termFrequency,
                            double keyFrequency,
                            double documentLength)
        This method provides the contract for implementing weighting models.
        Specified by:
        score in class BasicModel
        Parameters:
        tf - The term frequency in the document
        documentFrequency - The document frequency of the term
        termFrequency - the term frequency in the collection
        documentLength - The length of the document.
        keyFrequency - The normalised query term frequency.
        Returns:
        the score returned by the implemented weighting model.