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IRAL
2003
ACM
14 years 29 days ago
Dynamic programming matching for large scale information retrieval
Though dynamic programming matching can carry out approximate string matching when there may be deletions or insertions in a document, its effectiveness and efficiency are usuall...
Eiko Yamamoto, Masahiro Kishida, Yoshinori Takenam...
ICCSA
2010
Springer
14 years 2 months ago
String Matching with Mismatches by Real-Valued FFT
String matching with mismatches is a basic concept of information retrieval with some kinds of approximation. This paper proposes an FFT-based algorithm for the problem of string ...
Kensuke Baba
ECIR
2006
Springer
13 years 9 months ago
Filtering Obfuscated Email Spam by means of Phonetic String Matching
Rule-based email filters mainly rely on the occurrence of critical words to classify spam messages. However, perceptive obfuscation techniques can be used to elude exact pattern ma...
Valerio Freschi, Andrea Seraghiti, Alessandro Bogl...
MFCS
2005
Springer
14 years 1 months ago
Explicit Inapproximability Bounds for the Shortest Superstring Problem
Abstract. Given a set of strings S = {s1, . . . , sn}, the Shortest Superstring problem asks for the shortest string s which contains each si as a substring. We consider two measur...
Virginia Vassilevska
SIGMOD
2004
ACM
161views Database» more  SIGMOD 2004»
14 years 7 months ago
Approximation Techniques for Spatial Data
Spatial Database Management Systems (SDBMS), e.g., Geographical Information Systems, that manage spatial objects such as points, lines, and hyper-rectangles, often have very high ...
Abhinandan Das, Johannes Gehrke, Mirek Riedewald