SECTION 5 GIVES THE RESULTS OF A NUMBER OF EXPERI-KNOWLEDGE ABOUT THE...

1. Compute the set of representative keywordsspeech tagger is used to process the question) andand

both from and from

; this step issemantic features (by means of semantic predicatescarried out using linguistic techniques, such asdefined on the WordNet taxonomy; see (Magnini etanswer type identification (from the question)al., 2001) for details). Possible answer types are:and named entities recognition (from the an-

DATE

,

MEASURE

,

PERSON

,

LOCATION

,

ORGANI

-swer);

ZATION

,

DEFINITION

and

GENERIC

.

DEFINITION

is the answer type peculiar to questions like “What