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CHI
2002
ACM
14 years 7 months ago
The effect of tangible interfaces on children's collaborative behaviour
The physical nature of the classroom means that children are continually divided into small groups. The present study examined collaboration on a story creation task using technol...
Danae Stanton, Victor Bayon, Camilla Abnett, Sue C...
ACMIDC
2010
13 years 11 months ago
TeddIR: tangible information retrieval for children
Despite several efforts to make search engines more childfriendly, children still have trouble using systems that require keyboard input. We present TeddIR: a system using a tangi...
Michel Jansen, Wim Bos, Paul E. van der Vet, Theo ...
CHI
2011
ACM
12 years 11 months ago
Materializing the query with facet-streams: a hybrid surface for collaborative search on tabletops
We introduce “Facet-Streams”, a hybrid interactive surface for co-located collaborative product search on a tabletop. Facet-Streams combines techniques of information visualiz...
Hans-Christian Jetter, Jens Gerken, Michael Zö...
SIGMOD
1996
ACM
132views Database» more  SIGMOD 1996»
13 years 11 months ago
Cost-Based Optimization for Magic: Algebra and Implementation
Magic sets rewriting is a well-known optimization heuristic for complex decision-support queries. There can be many variants of this rewriting even for a single query, which diffe...
Praveen Seshadri, Joseph M. Hellerstein, Hamid Pir...
ICLP
2010
Springer
13 years 11 months ago
Dynamic Magic Sets for Disjunctive Datalog Programs
Abstract. Answer set programming (ASP) is a powerful formalism for knowledge representation and common sense reasoning that allows disjunction in rule heads and nonmonotonic negati...
Mario Alviano