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We propose a compact visible light indoor positioning system fashioned with a single transmitter and a single tilted receiver. The tilted optical receiver is mounted on a rotatable platform and thus, various azimuth angles can be obtained by rotating the platform, which offers a feasible way to perform multiple measurements with different azimuth angles to achieve the angle gain. An indoor positioning...
We propose a method of structural analysis for detecting true/false friend links in Internet social networks. By the balance theory in social science and observed user behaviors, we define two graph optimization problems -- One can be solved in polynomial time while the other is NP-hard. Exact and heuristic algorithms are proposed for the NP-hard problem. To show the efficiency of the algorithm, experiments...
This paper proposes a new framework for the selection of tag SNPs based on haplotypes instead of on a single SNP. The tag SNPs found by this framework form a set of haplotypes completely predictive of the alleles of all untyped SNPs. We refer to this problem as MTMH, which is defined as follows: given a set of SNPs, find a minimum subset of SNPs (called tag SNPs) which defines a set of haplotypes...
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