org.terrier.applications

Class InteractiveQuerying

java.lang.Object

org.terrier.applications.AbstractQuerying

org.terrier.applications.InteractiveQuerying

public class InteractiveQuerying
extends AbstractQuerying

This class performs interactive querying at the command line. It asks for a query on Standard Input, and then displays the document IDs that match the given query.

Properties:

• interactive.model - which weighting model to use, defaults to PL2
• interactive.matching - which Matching class to use, defaults to Matching
• interactive.manager - which Manager class to use, defaults to Matching

Author:

Gianni Amati, Vassilis Plachouras, Ben He, Craig Macdonald

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	InteractiveQuerying.Command

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

AbstractQuerying.AbstractQueryingCommand

Field Summary

Fields

Modifier and Type	Field and Description
static String	INTERACTIVE_COMMAND
protected static org.slf4j.Logger	logger The logger used
protected static boolean	lowercase Change to lowercase?
protected String[]	metaKeys
protected boolean	printDocid
protected PrintWriter	resultFile The file to store the output to.
protected static int	RESULTS_LENGTH The maximum number of presented results.
protected boolean	verbose display user prompts

Fields inherited from class org.terrier.applications.AbstractQuerying

controls, indexref, matchingCount, matchopQl, queryingManager

Constructor Summary

Constructors

Constructor and Description
InteractiveQuerying() A default constructor initialises the index, and the Manager.

Method Summary

Modifier and Type	Method and Description
void	close() Closes the used structures.
static void	main(String[] args) Starts the interactive query application.
void	printResults(PrintWriter pw, SearchRequest q) Prints the results
void	processQueries() Performs the matching using the specified weighting model from the setup and possibly a combination of evidence mechanism.
SearchRequest	processQuery(String queryId, String query) According to the given parameters, it sets up the correct matching class.

Methods inherited from class org.terrier.applications.AbstractQuerying

createManager

Methods inherited from class java.lang.Object

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

Field Detail

INTERACTIVE_COMMAND

public static final String INTERACTIVE_COMMAND

See Also:

Constant Field Values

logger

protected static final org.slf4j.Logger logger

The logger used

lowercase

protected static final boolean lowercase

Change to lowercase?

verbose

protected boolean verbose

display user prompts

resultFile

protected PrintWriter resultFile

The file to store the output to.

RESULTS_LENGTH

protected static int RESULTS_LENGTH

The maximum number of presented results.

metaKeys

protected String[] metaKeys

printDocid

protected boolean printDocid

Constructor Detail

InteractiveQuerying

public InteractiveQuerying()

A default constructor initialises the index, and the Manager.

Method Detail

close

public void close()

Closes the used structures.

processQuery

public SearchRequest processQuery(String queryId,
                                  String query)

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

Overrides:

processQuery in class AbstractQuerying

Parameters:

queryId - String the query identifier to use.

query - String the query to process.

processQueries

public void processQueries()

Performs the matching using the specified weighting model from the setup and possibly a combination of evidence mechanism. 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.

printResults

public void printResults(PrintWriter pw,
                         SearchRequest q)
                  throws IOException

Prints the results

Parameters:

pw - PrintWriter the file to write the results to.

q - SearchRequest the search request to get results from.

Throws:

IOException

main

public static void main(String[] args)

Starts the interactive query application.

Parameters:

args - the command line arguments.