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KI
2008
Springer
13 years 7 months ago
Wayfinding in Scene Space
Many environments in which humans wayfind can be conveniently abstracted as networks or graphs: structures of nodes that are interconnected by edges. Examples include the street ne...
Urs-Jakob Rüetschi
JACM
2010
120views more  JACM 2010»
13 years 2 months ago
The structure of inverses in schema mappings
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
Ronald Fagin, Alan Nash
PODS
2008
ACM
170views Database» more  PODS 2008»
14 years 7 months ago
Answering aggregate queries in data exchange
Data exchange, also known as data translation, has been extensively investigated in recent years. One main direction of research has focused on the semantics and the complexity of...
Foto N. Afrati, Phokion G. Kolaitis
PERCOM
2005
ACM
14 years 7 months ago
Security Parallels between People and Pervasive Devices
Unique and challenging security problems arise due to the scarcity of computational, storage, and power resources in the low-cost pervasive computing environment. Particularly rel...
Stephen A. Weis
MOBIHOC
2005
ACM
14 years 7 months ago
Sextant: a unified node and event localization framework using non-convex constraints
Determining node and event locations is a canonical task for many wireless network applications. Yet dedicated infrastructure for determining position information is expensive, en...
Emin Gün Sirer, Rohan Murty, Saikat Guha