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» An Evaluation Semantics for DATR Theories
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ER
2008
Springer
106views Database» more  ER 2008»
13 years 9 months ago
Towards a Compositional Semantic Account of Data Quality Attributes
We address the fundamental question: what does it mean for data in a database to be of high quality? We motivate our discussion with examples, where traditional views on data quali...
Lei Jiang, Alexander Borgida, John Mylopoulos
POPL
2010
ACM
14 years 4 months ago
Integrating Typed and Untyped Code in a Scripting Language
Many large software systems originate from untyped scripting language code. While good for initial development, the lack of static type annotations can impact code-quality and per...
Francesco Zappa Nardelli, Jan Vitek, Johan Ös...
ICDT
2010
ACM
194views Database» more  ICDT 2010»
13 years 9 months ago
Bag Equivalence of XPath Queries
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
Sara Cohen, Yaacov Y. Weiss
IDTRUST
2009
ACM
14 years 2 months ago
A calculus of trust and its application to PKI and identity management
We introduce a formal semantics based calculus of trust that explicitly represents trust and quantifies the risk associated with trust in public key infrastructure (PKI) and iden...
Jingwei Huang, David Nicol
KDD
2005
ACM
163views Data Mining» more  KDD 2005»
14 years 26 days ago
Web mining from competitors' websites
This paper presents a framework for user-oriented text mining. It is then illustrated with an example of discovering knowledge from competitors’ websites. The knowledge to be di...
Xin Chen, Yi-fang Brook Wu