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High precision location information formulates the basis of many modern wireless location based services (LBS). However, location privacy becomes an important issue along with the advantages that LBS offers. In this paper, we first show that, a novel eavesdropper is able to perform position estimation of the agent by purely overhearing the measurement signals between agents and anchors, using a time...
To overcome the problem of premature convergence on Artiifcial Bee Colony (ABC) in optimizing multi modal function, this paper proposed a hybrid algorithm of ABC-BFGS, and used a special mutation to make algorithm escape local minima. Four classic multi-valued functions (Rosen Brock, Rastrigin, Griewank, Ackley) were selected as the test functions. The experimental results show that the ABC-BFGS algorithm...
Derivatives of N-acylhomoserine lactones (HSLs) with different alkanoyl side chains occur as quorum or diffusion sensing molecules in Gram-negative bacteria and their quantitative chemical analysis became important as a possible way to follow regulation processes of their pathogenicity towards plants and animals. The lactone-ring of HSLs is chemically and biologically not stable: the corresponding...
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