Method score

src/licensedcode/match.py:592–619

Return the score for this match as a rounded float between 0 and 100. The score is an indication of the confidence that a match is good. It is computed from the number of matched tokens, the number of query tokens in the matched range (including unknowns and unmatch

(self)

        return self.ispan.density()

    def score(self):
        """
        Return the score for this match as a rounded float between 0 and 100.

        The score is an indication of the confidence that a match is good. It is
        computed from the number of matched tokens, the number of query tokens
        in the matched range (including unknowns and unmatched) and the matched
        rule relevance.
        """
        # relevance is a number between 0 and 100. Divide by 100
        relevance = self.rule.relevance / 100
        if not relevance:
            return 0

        qmagnitude = self.qmagnitude()

        # Compute the score as the ration of the matched query length to the
        # qmagnitude, e.g. the length of the matched region
        if not qmagnitude:
            return 0

        # FIXME: this should exposed as an q/icoverage() method instead
        query_coverage = self.len() / qmagnitude
        rule_coverage = self._icoverage()
        if query_coverage < 1 and rule_coverage < 1:
            # use rule coverage in this case
            return  round(rule_coverage * relevance * 100, 2)
        return  round(query_coverage * rule_coverage * relevance * 100, 2)

    def surround(self, other):
        """