public QualityBenchmark(QualityQuery qqs[], QualityQueryParser qqParser,
String index, String docNameField) throws FileNotFoundException,
IOException, ClassNotFoundException {
this.qualityQueries = qqs;
this.qqParser = qqParser;
this.searcher = new Searcher(index);
this.reader = IndexReader.open(index);
this.docNameField = docNameField;
}