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ICDAR
2011
IEEE
14 years 6 months ago
Writer Retrieval - Exploration of a Novel Biometric Scenario Using Perceptual Features Derived from Script Orientation
—We propose a novel scenario called “writer retrieval” consisting in the retrieval from a set of documents all those produced by the same writer. The retrieval is based on a ...
Vlad Atanasiu, Laurence Likforman-Sulem, Nicole Vi...
KDD
2012
ACM
196views Data Mining» more  KDD 2012»
13 years 9 months ago
Chromatic correlation clustering
We study a novel clustering problem in which the pairwise relations between objects are categorical. This problem can be viewed as clustering the vertices of a graph whose edges a...
Francesco Bonchi, Aristides Gionis, Francesco Gull...
TKDE
2012
194views Formal Methods» more  TKDE 2012»
13 years 9 months ago
A Query Formulation Language for the Data Web
— We present a query formulation language (called MashQL) in order to easily query and fuse structured data on the web. The main novelty of MashQL is that it allows people with l...
Mustafa Jarrar, Marios D. Dikaiakos
EDBT
2012
ACM
228views Database» more  EDBT 2012»
13 years 8 months ago
Towards scalable data integration under constraints
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
George Konstantinidis, José Luis Ambite
EDBT
2012
ACM
247views Database» more  EDBT 2012»
13 years 8 months ago
Heuristics-based query optimisation for SPARQL
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...
Petros Tsialiamanis, Lefteris Sidirourgos, Irini F...