info.ephyra.nlp.semantics
Class ASSERT

java.lang.Object
  info.ephyra.nlp.semantics.ASSERT

public class ASSERT
extends java.lang.Object

A Wrapper for the ASSERT semantic role labeler.

Version:

2007-04-25

Author:

Andy Schlaikjer, Nico Schlaefer

Field Summary

private static boolean	ASSERT_CLIENT_MODE Run ASSERT in client mode.
private static java.lang.String	ASSERT_DIR Directory of ASSERT.
private static java.lang.String	CACHE_DIR Cache directory where parses are stored.
private static boolean	CACHING Enable caching of parses.
private static java.util.regex.Pattern	PARSE_P Pattern for extracting parses from ASSERT's output file.

Constructor Summary

ASSERT()

Method Summary

static java.lang.String[][]	annotatePredicates(java.lang.String[] ss) Annotates the predicates in an array of sentences.
private static int	checkLogFile(java.io.File logf) Checks the log file for ASSERT failures.
private static java.io.File	createInputFile(java.lang.String[] ss) Creates a temporary file containing the sentences to be processed by ASSERT.
private static java.io.File	execAssertProcess(java.io.File input) Instantiates an ASSERT process using the supplied input file.
private static java.lang.String[][]	readOutputFile(java.io.File input, int sentCount) Reads the annotated sentences from the output file created by ASSERT.
static java.lang.String	untokenize(java.lang.String text, java.lang.String original) This untokenizer is tailored for ASSERT.

Methods inherited from class java.lang.Object

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

Field Detail

ASSERT_DIR

private static final java.lang.String ASSERT_DIR

Directory of ASSERT.

ASSERT_CLIENT_MODE

private static final boolean ASSERT_CLIENT_MODE

Run ASSERT in client mode.

See Also:

Constant Field Values

CACHING

private static final boolean CACHING

Enable caching of parses.

See Also:

Constant Field Values

CACHE_DIR

private static final java.lang.String CACHE_DIR

Cache directory where parses are stored.

See Also:

Constant Field Values

PARSE_P

private static final java.util.regex.Pattern PARSE_P

Pattern for extracting parses from ASSERT's output file.

Constructor Detail

ASSERT

public ASSERT()

Method Detail

createInputFile

private static java.io.File createInputFile(java.lang.String[] ss)
                                     throws java.lang.Exception

Creates a temporary file containing the sentences to be processed by ASSERT.

Parameters:

ss - sentences to be parsed

Returns:

input file

Throws:

java.lang.Exception

execAssertProcess

private static java.io.File execAssertProcess(java.io.File input)
                                       throws java.lang.Exception

Instantiates an ASSERT process using the supplied input file.

Parameters:

input - an input file initialized previously with a call to createInputFile()

Returns:

log file

Throws:

java.lang.Exception

readOutputFile

private static java.lang.String[][] readOutputFile(java.io.File input,
                                                   int sentCount)
                                            throws java.lang.Exception

Reads the annotated sentences from the output file created by ASSERT.

Parameters:

input - an input file initialized previously with a call to createInputFile()

sentCount - number of sentences that have been passed to ASSERT

Returns:

annotated sentences

Throws:

java.lang.Exception

checkLogFile

private static int checkLogFile(java.io.File logf)

Checks the log file for ASSERT failures. Returns Integer.MAX_VALUE if ASSERT successfully parsed the sentences or the index of the last sentence that was parsed if ASSERT failed. -1 indicates that no sentence could be parsed.

Parameters:

logf - log file

Returns:

Integer.MAX_VALUE or index of last sentence that was parsed

annotatePredicates

public static java.lang.String[][] annotatePredicates(java.lang.String[] ss)

Annotates the predicates in an array of sentences.

Parameters:

ss - sentences to be parsed

Returns:

annotated sentences

untokenize

public static java.lang.String untokenize(java.lang.String text,
                                          java.lang.String original)

This untokenizer is tailored for ASSERT. It does not only remove abundant blanks but it also tries to restore special characters that have been dropped by ASSERT.

Parameters:

text - text to untokenize

original - string that contains the original text as a subsequence

Returns:

subsequence of the original string or null, iff there is no such subsequence