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| Content Provider | ACM Digital Library |
|---|---|
| Author | Liu, Ruifeng Fu, Ada Wai-Chee Huang, Silu Chen, Zitong Liu, Yubao |
| Abstract | We study the problem of optimal location querying for location-based services in road networks, which aims to find locations for new servers or facilities. The existing optimal solutions on this problem consider only the cases with one new server. When two or more new servers are to be set up, the problem with minmax cost criteria, MinMax, becomes NP-hard. In this work we identify some useful properties about the potential locations for the new servers, from which we derive a novel algorithm for MinMax, and show that it is efficient when the number of new servers is small. When the number of new servers is large, we propose an efficient 3-approximate algorithm. We verify with experiments on real road networks that our solutions are effective and attain significantly better result quality compared to the existing greedy algorithms. |
| Starting Page | 1 |
| Ending Page | 10 |
| Page Count | 10 |
| File Format | |
| ISBN | 9781450345897 |
| DOI | 10.1145/2996913.2996927 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2016-10-31 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Multiple optimal locations P-center Road networks |
| Content Type | Text |
| Resource Type | Article |
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