--add_wn_nopos

Switch

--add_wn_nopos

Description

Creates a WordNet concept feature table (each word mapped to its WordNet noun synsets, without part-of-speech disambiguation), based on an existing 1gram feature table.

Argument and Default Value

No argument. Boolean switch, default: False. Requires the nltk WordNet corpus (python -c "import nltk; nltk.download('wordnet')").

Details

Requires a word table (default feat$1gram$<corptable>$<correl_field>) to already exist — build it first with --add_ngrams.

Known issue — broken in SQLite mode. FeatureExtractor.addWNNoPosFeat() creates the destination table correctly (through the SQLite-aware path), but then checks the source word table's existence via mm.tableExists(...) — a raw mysqlmethods call. Verified: the feature table gets created empty, then the run crashes with sqlite3.OperationalError: near "show": syntax error before any WordNet lookups happen, leaving a 0-row table behind.

Other Switches

Required Switches:

• -d, -g, -t

• --add_ngrams (must be run first, to build the word table)

Optional Switches:

• --word_table (to point at a non-default word table)

Example Commands

Requires MySQL — broken against SQLite, see Known issue above:

dlatkInterface.py -d dla_tutorial -t msgs -c user_id --add_ngrams -n 1
dlatkInterface.py -d dla_tutorial -t msgs -c user_id --add_wn_nopos