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DEBU
2010
127views more  DEBU 2010»
13 years 8 months ago
Provenance in ORCHESTRA
Sharing structured data today requires agreeing on a standard schema, then mapping and cleaning all of the data to achieve a single queriable mediated instance. However, for setti...
Todd J. Green, Grigoris Karvounarakis, Zachary G. ...
DOLAP
2007
ACM
14 years 3 months ago
Deciding the physical implementation of ETL workflows
In this paper, we deal with the problem of determining the best possible physical implementation of an ETL workflow, given its logical-level description and an appropriate cost mo...
Vasiliki Tziovara, Panos Vassiliadis, Alkis Simits...
APCCM
2007
14 years 19 days ago
English Sentence Structures and EER Modeling
An input to the conceptual database design phase contains a description of the target database. This description is usually given in some natural language, for instance in English...
Sven Hartmann, Sebastian Link
CIKM
2009
Springer
14 years 5 months ago
Inverted indexes vs. bitmap indexes in decision support systems
Bitmap indexes are widely used in Decision Support Systems (DSSs) to improve query performance. In this paper, we evaluate the use of compressed inverted indexes with adapted quer...
Truls A. Bjørklund, Nils Grimsmo, Johannes ...
IV
2000
IEEE
118views Visualization» more  IV 2000»
14 years 3 months ago
Direct Annotation: A Drag-and-Drop Strategy for Labeling Photos
Annotating photos is such a time-consuming, tedious and error-prone data entry task that it discourages most owners of personal photo libraries. By allowing users to drag labels s...
Ben Shneiderman, Hyunmo Kang