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This paper presents an improved bag-of-words (BoW) framework for detecting near-duplicates of images on the Web and makes three main contributions. Firstly, based on the SIFT feature descriptors, Locality-constrained Linear Coding (LLC) with the spatial pyramid is introduced to encode features. Secondly, a weighted Chi-square distance metric is proposed to compare two histograms, with an inverted...
This work formulates for the first time a multiple traveling salesman problem (MTSP) with ordinary and exclusive cities, denoted by MTSP for short. In the original MTSP, a city can be visited by any traveling salesman and is thus renamed as an ordinary one in MTSP. A new class of cities is introduced in MTSP, called exclusive ones. They are divided into groups, each of which can be exclusively visited...
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