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» Overview of the TREC 2003 Question Answering Track
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SIGIR
2008
ACM
13 years 5 months ago
Novelty and diversity in information retrieval evaluation
Evaluation measures act as objective functions to be optimized by information retrieval systems. Such objective functions must accurately reflect user requirements, particularly w...
Charles L. A. Clarke, Maheedhar Kolla, Gordon V. C...
CSFW
2003
IEEE
13 years 10 months ago
Using First-Order Logic to Reason about Policies
A policy describes the conditions under which an action is permitted or forbidden. We show that a fragment of (multi-sorted) first-order logic can be used to represent and reason...
Joseph Y. Halpern, Vicky Weissman
INEX
2004
Springer
13 years 10 months ago
NEXI, Now and Next
NEXI was introduced in INEX 2004 as a query language for specifying structured and unstructured queries on XML documents. A language expressive enough for INEX yet simple enough f...
Andrew Trotman, Börkur Sigurbjörnsson
AAAI
2007
13 years 7 months ago
AURA: Enabling Subject Matter Experts to Construct Declarative Knowledge Bases from Science Textbooks
The long-term goal of Project Halo is to build an application called Digital Aristotle that can answer questions on a variety of science topics and provide user and domain appropr...
Ken Barker, Vinay K. Chaudhri, Shaw Yi Chaw, Peter...
CACM
2008
84views more  CACM 2008»
13 years 5 months ago
The emergence of a networking primitive in wireless sensor networks
The wireless sensor network community approached netabstractions as an open question, allowing answers to emerge with time and experience. The Trickle algorithm has become a basic...
Philip Levis, Eric A. Brewer, David E. Culler, Dav...