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                                       Beacons U to World of technology
        044-42133143, 98401 03301,9841091117 ieeeprojects@yahoo.com www.impulse.net.in
    Evaluating Path queries over Frequently Updated Route Collections
   Abstract
           The recent advances in the infrastructure of Geographic Information Systems
   (GIS), and the proliferation of GPS technology, have resulted in the abundance of
   geodata in the form of sequences of points of interest (POIs), waypoints, etc. We refer to
   sets of such sequences as route collections. In this work, we consider path queries on
   frequently updated route collections: given a route collection and two points ns and nt, a
   path query returns a path, i.e., a sequence of points, that connects ns to nt. We introduce
   two path query evaluation paradigms that enjoy the benefits of search algorithms (i.e.,
   fast index maintenance) while utilizing transitivity information to terminate the search
   sooner. Efficient indexing schemes and appropriate updating procedures are introduced.
   An extensive experimental evaluation verifies the advantages of our methods compared
   to conventional graph-based search.




  Your Own Ideas or Any project from any company can be Implemented
at Better price (All Projects can be done in Java or DotNet whichever the student wants)
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15

  • 1. Impulse Technologies Beacons U to World of technology 044-42133143, 98401 03301,9841091117 ieeeprojects@yahoo.com www.impulse.net.in Evaluating Path queries over Frequently Updated Route Collections Abstract The recent advances in the infrastructure of Geographic Information Systems (GIS), and the proliferation of GPS technology, have resulted in the abundance of geodata in the form of sequences of points of interest (POIs), waypoints, etc. We refer to sets of such sequences as route collections. In this work, we consider path queries on frequently updated route collections: given a route collection and two points ns and nt, a path query returns a path, i.e., a sequence of points, that connects ns to nt. We introduce two path query evaluation paradigms that enjoy the benefits of search algorithms (i.e., fast index maintenance) while utilizing transitivity information to terminate the search sooner. Efficient indexing schemes and appropriate updating procedures are introduced. An extensive experimental evaluation verifies the advantages of our methods compared to conventional graph-based search. Your Own Ideas or Any project from any company can be Implemented at Better price (All Projects can be done in Java or DotNet whichever the student wants) 1