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» Database Engineering from the Category Theory Viewpoint
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WWW
2011
ACM
13 years 2 months ago
A demo search engine for products
Most product search engines today build on models of relevance devised for information retrieval. However, the decision mechanism that underlies the process of buying a product is...
Beibei Li, Anindya Ghose, Panagiotis G. Ipeirotis
CORR
2010
Springer
132views Education» more  CORR 2010»
13 years 7 months ago
Functorial Data Migration
In this paper we present a simple database definition language: that of categories and functors. A database schema is a category and a state is a set-valued functor. We show that m...
David I. Spivak
ER
2009
Springer
152views Database» more  ER 2009»
13 years 5 months ago
Towards a Theory of Conceptual Modelling
: Conceptual modelling is a widely applied practice and has led to a large body of knowledge on constructs that might be used for modelling and on methods that might be useful for ...
Bernhard Thalheim
WWW
2008
ACM
14 years 8 months ago
Spatial variation in search engine queries
Local aspects of Web search -- associating Web content and queries with geography -- is a topic of growing interest. However, the underlying question of how spatial variation is m...
Lars Backstrom, Jon M. Kleinberg, Ravi Kumar, Jasm...
ICEIS
2003
IEEE
14 years 24 days ago
Formalizing Types with Ultimate Closure for Middleware Tools in Information Systems Engineering
: A definition of types in an information system is given from real-world abstractions through data constructs, schema and definitions to physical data values. Category theory su...
B. Nick Rossiter, David A. Nelson, Michael A. Heat...