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AMW
2011
14 years 10 months ago
Subqueries in SPARQL
Subqueries are a poweful feature which allows to enforce reuse, composition, rewriting and optimization in a query language. In this paper we perform a comprehensive study of the i...
Renzo Angles, Claudio Gutierrez
CIDR
2011
266views Algorithms» more  CIDR 2011»
14 years 10 months ago
Consistency in a Stream Warehouse
A stream warehouse is a Data Stream Management System (DSMS) that stores a very long history, e.g. years or decades; or equivalently a data warehouse that is continuously loaded. ...
Lukasz Golab, Theodore Johnson
ALDT
2011
Springer
262views Algorithms» more  ALDT 2011»
14 years 6 months ago
Learning Complex Concepts Using Crowdsourcing: A Bayesian Approach
Abstract. We develop a Bayesian approach to concept learning for crowdsourcing applications. A probabilistic belief over possible concept definitions is maintained and updated acc...
Paolo Viappiani, Sandra Zilles, Howard J. Hamilton...
ASM
2010
ASM
16 years 1 months ago
A Basis for Feature-Oriented Modelling in Event-B
Abstract. Feature-oriented modelling is a well-known approach for Software Product Line (SPL) development. It is a widely used method when developing groups of related software. Wi...
Jennifer Sorge, Michael Poppleton, Michael Butler
AOSD
2007
ACM
15 years 10 months ago
Using natural language program analysis to locate and understand action-oriented concerns
Most current software systems contain undocumented high-level ideas implemented across multiple files and modules. When developers perform program maintenance tasks, they often wa...
David Shepherd, Zachary P. Fry, Emily Hill, Lori L...