Question Answering with LCC's CHAUCER at TREC 2006

نویسندگان

  • Andrew Hickl
  • John Williams
  • Jeremy Bensley
  • Kirk Roberts
  • Ying Shi
  • Bryan Rink
چکیده

CHAUCER is a Q/A system developed for (a) combining several strategies for modeling the target of a series of questions and (b) optimizing the extraction of answers. Targets were modeled by (1) topic signatures; (2) semantic types; (3) lexico-semantic patterns; (4) frame dependencies; and (5) predictive questions. Several strategies for answer extraction were also tried. The best-performing strategy was based on the use of textual entailment.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Question Answering with LCC's CHAUCER-2 at TREC 2007

In TREC 2007, Language Computer Corporation explored how a new, semantically-rich framework for information retrieval could be used to boost the overall performance of the answer extraction and answer selection components featured in its CHAUCER-2 automatic question-answering (Q/A) system. By replacing the traditional keyword-based retrieval system used in (Hickl et al. 2006c) with a new indexi...

متن کامل

TREC 2006 at Maryland: Blog, Enterprise, Legal and QA Tracks

In TREC 2006, teams from the University of Maryland participated in the Blog track, the Expert Search task of the Enterprise track, the Complex Interactive Question Answering task of the Question Answering track, and the Legal track. This paper reports our results.

متن کامل

A Temporally-Enhanced PowerAnswer in TREC 2006

This paper reports on Language Computer Corporation’s participation in the Question Answering track at TREC 2006. An overview of the PowerAnswer 3 question answering system and a description of new features added to meet the challenges of this year’s evaluation are provided. Emphasis is given to temporal constraints in questions and how this affected the outcome of the systems in the task. LCC’...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006