EQUAL: Encyclopaedic QUestion Answering for Lists

Dornescu, I. (2009) EQUAL: Encyclopaedic QUestion Answering for Lists. In Working notes for the CLEF 2009 Workshop. Corfu, Greece.


This paper presents EQUAL, a semantic question answering (QA) system which relies on structural information from Wikipedia to extract answers to list questions in the GikiCLEF 2009 task. The system is described in the context of of a more general architecture for semantic QA. Unlike the usual textual QA approach, EQUAL does not rely on identifying the answer within a text snippet by using keyword retrieval. Instead, it explores the Wikipedia page graph extracting and aggregating information from multiple documents. Enforcing semantic constraints proved to yield precise results, and the system achieved the highest score amongst the participants in the task.

Electronic version


BibTeX reference

  author = {Dornescu, Iustin}, 
  title = {{EQUAL: Encyclopaedic QUestion Answering for Lists}}, 
  booktitle = {Working notes for the CLEF 2009 Workshop},
  editor    = {Francesca Borri and Alessandro Nardi and Carol Peters},
  month = {September},
  year = {2009},
  address = {Corfu, Greece},
  publisher = {CLEF 2009 Organizing Committee}, 
  url = {http://clef.isti.cnr.it/2009/working_notes/dornescu-paperCLEF2009.pdf}