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CHI
2009
ACM
14 years 2 months ago
PhotoScope: visualizing spatiotemporal coverage of photos for construction management
PhotoScope visualizes the spatiotemporal coverage of photos in a photo collection. It extends the standard photo browsing paradigm in two main ways: visualizing spatial coverage o...
Fuqu Wu, Melanie Tory
SAC
2010
ACM
13 years 8 months ago
Spatiotemporal sampling for trajectory streams
In this paper, we present a summarization technique adapted to trajectory streams. The Spatiotemporal Stream Sampling (STSS) algorithm is a single-pass sampling technique that tak...
Mohamed Khalil El Mahrsi, Christine Potier, George...
DEXAW
2010
IEEE
150views Database» more  DEXAW 2010»
13 years 9 months ago
Search Strategies for Keyword-based Queries
Given a set of keywords, we find a maximum Web query (containing the most keywords possible) that respects userdefined bounds on the number of returned hits. We assume a real-world...
Matthias Hagen, Benno Stein
SIGMOD
2006
ACM
159views Database» more  SIGMOD 2006»
14 years 8 months ago
Flexible and efficient XML search with complex full-text predicates
Recently, there has been extensive research that generated a wealth of new XML full-text query languages, ranging from simple Boolean search to combining sophisticated proximity a...
Sihem Amer-Yahia, Emiran Curtmola, Alin Deutsch
SIGMOD
2008
ACM
210views Database» more  SIGMOD 2008»
14 years 8 months ago
Private queries in location based services: anonymizers are not necessary
Mobile devices equipped with positioning capabilities (e.g., GPS) can ask location-dependent queries to Location Based Services (LBS). To protect privacy, the user location must n...
Gabriel Ghinita, Panos Kalnis, Ali Khoshgozaran, C...