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107
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IJAC
2002
15 years 1 months ago
2002
Abstract. We discuss the computational complexity of several problems concerning subsets of an algebraic structure that generate the structure. We show that the problem of determin...
137
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AI
1998
Springer
15 years 1 months ago
1998
Springer
Renewed motives for space exploration have inspired NASA to work toward the goal of establishing a virtual presence in space, through heterogeneous eets of robotic explorers. Info...
105
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GIS
1998
ACM
15 years 1 months ago
1998
ACM
Geographical Information Systems (GIS) involve the manipulation of large spatial data sets, and the performance of these systems is often determined by how these data sets are orga...
130
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IJMMS
1998
15 years 1 months ago
1998
A continuing problem in business today is the design of human-computer systems that respect how work actually gets done. The overarching context of work consists of activities, wh...
132
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CN
1999
15 years 1 months ago
1999
Today's Internet appliances feature user interface technologies almost unknown a few years ago: touch screens, styli, handwriting and voice recognition, speech synthesis, tin...