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» Answering Queries using Humans, Algorithms and Databases
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GECCO
2007
Springer
283views Optimization» more  GECCO 2007»
15 years 10 months ago
Evolving Lucene search queries for text classification
We describe a method for generating accurate, compact, human understandable text classifiers. Text datasets are indexed using Apache Lucene and Genetic Programs are used to constr...
Laurence Hirsch, Robin Hirsch, Masoud Saeedi
139
Voted
ICALP
2005
Springer
15 years 9 months ago
Improved Lower Bounds for Locally Decodable Codes and Private Information Retrieval
We prove new lower bounds for locally decodable codes and private information retrieval. We show that a 2-query LDC encoding nbit strings over an ℓ-bit alphabet, where the decode...
Stephanie Wehner, Ronald de Wolf
128
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IPM
2007
69views more  IPM 2007»
15 years 3 months ago
Investigating sentence weighting components for automatic summarisation
The work described here initially formed part of a triangulation exercise to establish the effectiveness of the Query Term Order algorithm. The methodology produced subsequently p...
Shao Fen Liang, Siobhan Devlin, John Tait
132
Voted
ICDE
2007
IEEE
106views Database» more  ICDE 2007»
15 years 10 months ago
Mining Trajectory Databases via a Suite of Distance Operators
With the rapid progress of mobile devices and positioning technologies, Trajectory Databases (TD) have been in the core of database research during the last decade. Analysis and k...
Nikos Pelekis, Ioannis Kopanakis, Irene Ntoutsi, G...
SSDBM
2005
IEEE
122views Database» more  SSDBM 2005»
15 years 9 months ago
Detection and Tracking of Discrete Phenomena in Sensor-Network Databases
This paper introduces a framework for Phenomena Detection and Tracking (PDT, for short) in sensor network databases. Examples of detectable phenomena include the propagation over ...
Mohamed H. Ali, Mohamed F. Mokbel, Walid G. Aref, ...