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SPIRE
2009
Springer
14 years 5 months ago
Novel and Generalized Sort-Based Transform for Lossless Data Compression
Kazumasa Inagaki, Yoshihiro Tomizawa, Hidetoshi Yo...
SPIRE
2009
Springer
14 years 5 months ago
Faster Algorithms for Sampling and Counting Biological Sequences
Abstract. A set of sequences S is pairwise bounded if the Hamming distance between any pair of sequences in S is at most 2d. The Consensus Sequence problem aims to discern between ...
Christina Boucher
SPIRE
2009
Springer
14 years 7 months ago
A Last-Resort Semantic Cache for Web Queries
We propose a method to evaluate queries using a last-resort semantic cache in a distributed Web search engine. The cache stores a group of frequent queries and for each of these qu...
Flavio Ferrarotti, Mauricio Marín, Marcelo ...
SPIRE
2009
Springer
14 years 7 months ago
A Task-Based Evaluation of an Aggregated Search Interface
Abstract. This paper presents a user study that evaluated the effectiveness of an aggregated search interface in the context of non-navigational search tasks. An experimental syst...
Shanu Sushmita, Hideo Joho, Mounia Lalmas
SPIRE
2009
Springer
14 years 7 months ago
On Entropy-Compressed Text Indexing in External Memory
A new trend in the field of pattern matching is to design indexing data structures which take space very close to that required by the indexed text (in entropy-compressed form) an...
Wing-Kai Hon, Rahul Shah, Sharma V. Thankachan, Je...
SPIRE
2009
Springer
14 years 7 months ago
Two-Dimensional Distributed Inverted Files
Abstract. Term-partitioned indexes are generally inefficient for the evaluation of conjunctive queries, as they require the communication of long posting lists. On the other side, ...
Esteban Feuerstein, Mauricio Marín, Michel ...
SPIRE
2009
Springer
14 years 7 months ago
Generalised Matching
Given a pattern p over an alphabet Σp and a text t over an alphabet Σt, we consider the problem of determining a mapping f from Σp to Σ+ t such that t = f(p1)f(p2) . . . f(pm)....
Raphaël Clifford, Aram Wettroth Harrow, Alexa...
SPIRE
2009
Springer
14 years 7 months ago
A Two-Level Structure for Compressing Aligned Bitexts
A bitext, or bilingual parallel corpus, consists of two texts, each one in a different language, that are mutual translations. Bitexts are very useful in linguistic engineering bec...
Joaquín Adiego, Nieves R. Brisaboa, Miguel ...
SPIRE
2009
Springer
14 years 7 months ago
Sketching Algorithms for Approximating Rank Correlations in Collaborative Filtering Systems
Collaborative filtering (CF) shares information between users to provide each with recommendations. Previous work suggests using sketching techniques to handle massive data sets i...
Yoram Bachrach, Ralf Herbrich, Ely Porat
SPIRE
2009
Springer
14 years 7 months ago
Consensus Optimizing Both Distance Sum and Radius
The consensus string problem is finding a representative string (consensus) of a given set S of strings. In this paper we deal with the consensus string problems optimizing both d...
Amihood Amir, Gad M. Landau, Joong Chae Na, Heejin...