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» An Approximation Algorithm for Alphabet Indexing Problem
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SIGMOD
2012
ACM
203views Database» more  SIGMOD 2012»
12 years 12 months ago
Optimizing index for taxonomy keyword search
Query substitution is an important problem in information retrieval. Much work focuses on how to find substitutes for any given query. In this paper, we study how to efficiently ...
Bolin Ding, Haixun Wang, Ruoming Jin, Jiawei Han, ...
APPROX
2008
Springer
245views Algorithms» more  APPROX 2008»
14 years 11 months ago
Approximating Optimal Binary Decision Trees
Abstract. We give a (ln n + 1)-approximation for the decision tree (DT) problem. An instance of DT is a set of m binary tests T = (T1, . . . , Tm) and a set of n items X = (X1, . ....
Micah Adler, Brent Heeringa
ICDE
2009
IEEE
135views Database» more  ICDE 2009»
15 years 11 months ago
Space-Constrained Gram-Based Indexing for Efficient Approximate String Search
Abstract-- Answering approximate queries on string collections is important in applications such as data cleaning, query relaxation, and spell checking, where inconsistencies and e...
Alexander Behm, Shengyue Ji, Chen Li, Jiaheng Lu
BMCBI
2006
100views more  BMCBI 2006»
14 years 9 months ago
Towards a better solution to the shortest common supersequence problem: the deposition and reduction algorithm
Background: The problem of finding a Shortest Common Supersequence (SCS) of a set of sequences is an important problem with applications in many areas. It is a key problem in biol...
Kang Ning, Hon Wai Leong
SSDBM
2010
IEEE
220views Database» more  SSDBM 2010»
15 years 1 months ago
Prefix Tree Indexing for Similarity Search and Similarity Joins on Genomic Data
Similarity search and similarity join on strings are important for applications such as duplicate detection, error detection, data cleansing, or comparison of biological sequences....
Astrid Rheinländer, Martin Knobloch, Nicky Ho...