[Attempto] Release of APE 6.5-091130

Tobias Kuhn t.kuhn at gmx.ch
Mon Nov 30 12:14:11 CET 2009


Hi everyone,

A new release of the Attempto Parsing Engine (APE) is available for download (version 6.5-091130):

     http://attempto.ifi.uzh.ch/site/downloads/

Though we have many ideas and also requests to extend Attempto Controlled English, this release 
serves mainly to consolidate the current status and contains no new language features.

The Attempto Parsing Engine (APE) was tested extensively which revealed a few bugs that we 
subsequently fixed:

     * Adjectives used with the construct "as ... as" were sometimes represented incorrectly.
     * Rare forms of combining relative clauses and anaphoric references did not work.
     * Scopes were represented incorrectly in some rare cases.
     * For some questions, parsing failed but succeeded if a full stop instead of a question mark was
       used.
     * In some rare cases, parsing succeeded for irreflexive pronouns where reflexive pronouns should
       have been used.
     * In some cases, proper names with relative clauses did not work properly with anaphoric
       references.
     * There were several small bugs in the resolution of anaphoric references.
     * Unknown words were not reported if the first sentence succeeded.

Also we cleaned up the code of APE and improved its internal documentation.

APE's paraphraser was slightly amended:

     * It now correctly chooses "a" or "an".
     * If the paraphraser cannot generate a paraphrase - for instance for distributed plurals, some
       questions, some cases of sentence subordination - it generates the ACE comment "# ..."
       instead.

APE's TPTP output:

     * The TPTP output was improved.
     * Several bugs were fixed.

In brief, APE is now in a very stable state.


The Attempto team


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