org.terrier.applications
Class TRECQueryingExpansion

java.lang.Object
  org.terrier.applications.TRECQuerying
      org.terrier.applications.TRECQueryingExpansion

Deprecated. This class performs a batch mode retrieval for a set of TREC queries using query expansion.

Properties

c.post The term frequency normalisation parameter value used in the second-pass retrieval.

trec.qe.model - name of the model to use for query expansion. If unset, then one will be read from etc/qemodels

public class TRECQueryingExpansion
extends TRECQuerying

Author:

Gianni Amati, Ben He, Vassilis Plachouras

Nested Class Summary

Nested classes/interfaces inherited from class org.terrier.applications.TRECQuerying

TRECQuerying.NullOutputFormat, TRECQuerying.OutputFormat, TRECQuerying.QueryResultCache, TRECQuerying.QuerySource, TRECQuerying.TRECDocidOutputFormat, TRECQuerying.TRECDocnoOutputFormat

Field Summary

protected java.lang.String

qeModel Deprecated. The name of the query expansion model used.

Fields inherited from class org.terrier.applications.TRECQuerying

defaultQEModel, DUMP_SETTINGS, index, managerName, matchingCount, method, mModel, printer, queryexpansion, queryingManager, querySource, random, removeQueryPeriods, resultFile, resultsCache, resultsFilename, topicsParser, wModel

Constructor Summary

TRECQueryingExpansion()
Deprecated. TRECQueryingExpansion default constructor.

TRECQueryingExpansion(Index i)
Deprecated. TRECQueryExpansion - Index constructor.

Method Summary

java.lang.String	processQueries(double c, boolean c_set) Deprecated. Performs the matching using the specified weighting model from the setup.
SearchRequest	processQuery(java.lang.String queryId, java.lang.String query, double cParameter, boolean c_set) Deprecated. According to the given parameters, it sets up the correct matching class.
protected void	processQueryAndWrite(java.lang.String queryId, java.lang.String query, double cParameter, boolean c_set) Deprecated. According to the given parameters, it sets up the correct matching class and performs retrieval for the given query.

Methods inherited from class org.terrier.applications.TRECQuerying

close, createManager, finishedQueries, getIndex, getManager, getNextQueryCounter, getOutputFormat, getQueryParser, getRandomQueryCounter, getResultFile, getResultsCache, getSequentialQueryCounter, initSearchRequestModification, loadIndex, preQueryingSearchRequestModification, printSettings, processQueries, processQueries, processQuery, processQuery, setIndex, startingBatchOfQueries

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

qeModel

protected java.lang.String qeModel

Deprecated.

The name of the query expansion model used.

Constructor Detail

TRECQueryingExpansion

public TRECQueryingExpansion()

Deprecated.

TRECQueryingExpansion default constructor. Calls super().

TRECQueryingExpansion

public TRECQueryingExpansion(Index i)

Deprecated.

TRECQueryExpansion - Index constructor. Calls super(Index).

Method Detail

processQuery

public SearchRequest processQuery(java.lang.String queryId,
                                  java.lang.String query,
                                  double cParameter,
                                  boolean c_set)

Deprecated.

According to the given parameters, it sets up the correct matching class.

Overrides:

processQuery in class TRECQuerying

Parameters:

queryId - the identifier of a query.

query - the query to process

cParameter - double the term frequency normalisation parameter value

c_set - specifies whether the given value for the parameter c should be used.

processQueryAndWrite

protected void processQueryAndWrite(java.lang.String queryId,
                                    java.lang.String query,
                                    double cParameter,
                                    boolean c_set)

Deprecated.

According to the given parameters, it sets up the correct matching class and performs retrieval for the given query.

Overrides:

processQueryAndWrite in class TRECQuerying

Parameters:

queryId - the identifier of the query to process.

query - org.terrier.structures.Query the query to process.

cParameter - double the value of the parameter to use.

c_set - A boolean variable indicating if cParameter has been specified.

processQueries

public java.lang.String processQueries(double c,
                                       boolean c_set)

Deprecated.

Performs the matching using the specified weighting model from the setup. It parses the file with the queries (the name of the file is defined in the address_query file), creates the file of results, and for each query, gets the relevant documents, scores them, and outputs the results to the result file.

Overrides:

processQueries in class TRECQuerying

Parameters:

c - the value of the document length normalisation parameter.

c_set - boolean specifies whether the value of the parameter c is specified.

Returns:

String the filename that the results have been written to