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This article explores the order batching problem (OBP), in warehouse of e-commerce companies. Based on the real E-commence warehouse case, we present a valid tabu search(TS) algorithm to determine how to group the orders in batches, with a greed-based seed heuristic method generating its initial solution. In tabu search, a modified combined picker routing algorithm for the multiple-cross-aisle picker...
This paper presents a new detection approach to magnetic resonance (MR) image classification. It is called color space fusion method. MRI produces a sequence of multiple spectral images of tissues with a variety of contrasts using three magnetic resonance parameters, spin-lattice (T1), spin-spin (T2) and dual echo-echo proton density (PD) as signals impinging upon the color space RGB. Therefore, the...
An outlier is the object which is very different from the rest of the dataset on some measure. Finding such exception has received much attention in the data mining field. In this paper, we propose a KNN based outlier detection algorithm which is consisted of two phases. Firstly, it partitions the dataset into several clusters and then in each cluster, it calculates the Kth nearest neighborhood for...
Recently, spectral clustering has wide application in pattern recognition and data mining because it can obtain global optima solution and adapt to sample spaces with any shape. Thus, a spectral clustering algorithm based on normalized cuts is proposed in this paper. It selects the k eigenvalues and corresponding eigenvectors of a given stochastic matrix and clusters in n times k sub-space. Experimental...
In order for individuals suffering from transfemoral amputation to walk in a variety of circumstances, the above-knee prosthesis based on posture recognition was presented. The body posture of lower limb was classified into four classes, "stair", "sitting", "standing", and "walking". For measure the amputee's movement intent, surface EMG signals which can reflect...
In order to improve the gait of disable people, a control concept of above-knee prosthesis was presented. The surface electromyography signal extracted from leg muscles was applied to recognize the phase of stride, and translated into on-off signal of self-lock control. A hybrid neural network-genetic algorithm was applied to describe the relation between surface electromyography signals and every...
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