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178
Voted
WWW
2009
ACM
16 years 7 months ago
A method of analyzing credibility based on LOD control of digital maps
Digital maps are widely used and appear on all types of platforms for integrating content. Users can change display region and scale by panning, zooming in, and zooming out on a d...
Daisuke Kitayama, Ryong Lee, Kazutoshi Sumiya
WWW
2009
ACM
16 years 7 months ago
The effects of source credibility ratings in a cultural heritage information aggregator
State of the art web search applications allow the user to aggregate information from many sources. Because of this, users are confronted with having to assess the reliability of ...
Alia Amin, Junte Zhang, Henriette S. M. Cramer, Ly...
ICDT
2009
ACM
248views Database» more  ICDT 2009»
16 years 7 months ago
Automatic verification of data-centric business processes
We formalize and study business process systems that are centered around "business artifacts", or simply "artifacts". This approach focuses on data records, kn...
Alin Deutsch, Richard Hull, Fabio Patrizi, Victor ...
ICDT
2009
ACM
150views Database» more  ICDT 2009»
16 years 7 months ago
Optimizing user views for workflows
A technique called user views has recently been proposed to focus user attention on relevant information in response to provenance queries over workflow executions [1, 2]: Given u...
Olivier Biton, Susan B. Davidson, Sanjeev Khanna, ...
ICDT
2009
ACM
121views Database» more  ICDT 2009»
16 years 7 months ago
Optimal splitters for database partitioning with size bounds
Partitioning is an important step in several database algorithms, including sorting, aggregation, and joins. Partitioning is also fundamental for dividing work into equal-sized (o...
Kenneth A. Ross, John Cieslewicz
ICDT
2009
ACM
175views Database» more  ICDT 2009»
16 years 7 months ago
Structural characterizations of schema-mapping languages
Schema mappings are declarative specifications that describe the relationship between two database schemas. In recent years, there has been an extensive study of schema mappings a...
Balder ten Cate, Phokion G. Kolaitis
ICDT
2009
ACM
173views Database» more  ICDT 2009»
16 years 7 months ago
Containment of conjunctive queries on annotated relations
We study containment and equivalence of (unions of) conjunctive queries on relations annotated with elements of a commutative semiring. Such relations and the semantics of positiv...
Todd J. Green
ICDT
2009
ACM
109views Database» more  ICDT 2009»
16 years 7 months ago
TOP-K projection queries for probabilistic business processes
A Business Process (BP) consists of some business activities undertaken by one or more organizations in pursuit of some business goal. Tools for querying and analyzing BP specific...
Daniel Deutch, Tova Milo
ICDT
2009
ACM
148views Database» more  ICDT 2009»
16 years 7 months ago
Tight results for clustering and summarizing data streams
In this paper we investigate algorithms and lower bounds for summarization problems over a single pass data stream. In particular we focus on histogram construction and K-center c...
Sudipto Guha
ICDT
2009
ACM
85views Database» more  ICDT 2009»
16 years 7 months ago
Reconcilable differences
Todd J. Green, Zachary G. Ives, Val Tannen