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» Natural Selection in Relation to Complexity
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PODS
2005
ACM
118views Database» more  PODS 2005»
14 years 7 months ago
On the complexity of division and set joins in the relational algebra
We show that any expression of the relational division operator in the relational algebra with union, difference, projection, selection, constant-tagging, and joins, must produce ...
Dirk Leinders, Jan Van den Bussche
COGSCI
2008
56views more  COGSCI 2008»
13 years 7 months ago
The Relation Between Essentialist Beliefs and Evolutionary Reasoning
Historians of science have pointed to essentialist beliefs about species as major impediments to the discovery of natural selection. The present study investigated whether such be...
Andrew Shtulman, Laura Schulz
SIGMOD
2006
ACM
194views Database» more  SIGMOD 2006»
14 years 7 months ago
Graph-based synopses for relational selectivity estimation
This paper introduces the Tuple Graph (TuG) synopses, a new class of data summaries that enable accurate selectivity estimates for complex relational queries. The proposed summari...
Joshua Spiegel, Neoklis Polyzotis
ANLP
2000
89views more  ANLP 2000»
13 years 9 months ago
Multiple Discourse Marker Occurrence: Creating Hierarchies for Natural Language Generation
Most studies on discourse markers implicitly assume that only one marker or discourse relation will occur in a sentence. In reality, more than one relation may hold between text s...
Sarah Louise Oates
HRI
2010
ACM
13 years 7 months ago
Towards robust human robot collaboration in industrial environments
In this paper a system, which is driven through natural language, that allows operators to select and manipulate objects in the environment using an industrial robot is proposed. I...
Batu Akan, Baran Çürüklü, Gi...