204 search results - page 4 / 41 » Containment of Conjunctive Queries with Negation: Algorithms... |
PODS
2010
ACM
14 years 23 days ago
2010
ACM
We investigate a higher-order query language that embeds operators of the positive relational algebra within the simply-typed λ-calculus. Our language allows one to succinctly de...
ICIP
2003
IEEE
14 years 1 months ago
2003
IEEE
We have been developing new relevance feedback algorithms for Content-based Image Retrieval (CBIR) that allow the user to achieve more flexible query. In conjunction with the new...
GECCO
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. This paper describes a genetic algorithm for the DNA sequencing problem. The algorithm allows the input spectrum to contain both positive and negative errors as could be ...
TREC
2008
13 years 9 months ago
2008
Abstract This document contains a description of experiments for the 2008 Relevance Feedback track. We experiment with different amounts of feedback, including negative relevance f...
ICARIS
2003
Springer
14 years 27 days ago
2003
Springer
Supermarkets lose millions of pounds every year through lost trading and stock wastage caused by the failure of refrigerated cabinets. Therefore, a huge commercial market exists fo...