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City Tokyo / San Francisco / New York / Pseudonym / Kanagawa / / Company Elsevier Science Inc. / Google / Japan 2 NTT Corporation / / Country United States / Japan / / / Event Reorganization / / Facility Institute of Statistical Mathematics / City Planning Institute of Japan / Choco library / / IndustryTerm polynomial algorithm / polynomial-time verification algorithm / path perturbation algorithm / polynomial-time algorithm / location-aware computing environments / constraint network / constraint propagation algorithm / generated constraint network / / Organization Japan Society for the Promotion of Science / IFIP International Federation for Information Processing / NTT / Institute of Statistical Mathematics / Research Organization of Information and Systems / City Planning Institute of Japan / / ProgrammingLanguage Java / Groovy / / ProvinceOrState New York / / Technology Bioinformatics / Java / polynomial-time verification algorithm / path perturbation algorithm / polynomial-time algorithm / constraint propagation algorithm / GPS / previously developed polynomial algorithm / mobile devices / / URL http / SocialTag 
On Safety of Pseudonym-Based Location Data in the Context of Constraint Satisfation Problems Tomoya Tanjo1 , Kazuhiro Minami1 , Ken Mano2 , and Hiroshi Maruyama1 1