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The traditional method of kurtosis is calculating the kurtosis value in the time domain. The larger the obtained value is, the stronger the corresponding impact characteristic. Afterward, in order to characterize the period of the signal, the correlation kurtosis is proposed by combining the correlation coefficient and kurtosis. In this paper, the correlation kurtosis is calculated in the frequency...
There are two ways to improve the D-S evidence theory, the methods based on modification for Dempster rule, and the methods based on modification for original evidence sources. For modification of evidence sources, there are mainly two methods: discounting factor method and weighted average method. Although the weighted average method has better focusing degree, it ignores conflicting degree of combination...
This paper proposes a new intrinsic image decomposition method that decomposes a single RGB-D image into reflectance and shading components. We observe and verify that, a shading image mainly contains smooth regions separated by curves, and its gradient distribution is sparse. We therefore use ℓ1-norm to model the direct irradiance component — the main sub-component extracted from shading component...
This paper presents a bilateral fading emulator for MIMO-OTA testing with a function of controlling the correlation of base station. On the basis of the Jakes theory, a methodology for achieving the spatial correlation of a base station antenna by setting the initial phases of scatterers in the two-dimensional channel model is introduced. The experimental results show that the designed correlation...
With the advances of depth sensing technologies, color image plus depth information (referred to as RGB-D data hereafter) is more and more popular for comprehensive description of 3-D scenes. This paper proposes a two-stage segmentation method for RGB-D data: 1) oversegmentation by 3-D geometry enhanced superpixels and 2) graph-based merging with label cost from superpixels. In the oversegmentation...
Under the background of the balance of exploration and exploitation, this paper analyzes the causes of the optimization hardness by using the concepts of effective ratio of exploration and exploitation. Then, a novel method is proposed to estimate the optimal feature factor, which is the essential part of optimal contraction theorem. At last, the method is tested with eight test functions. Some disadvantages...
Abstract-Successful independent innovation depends on the ability to integrate external and internal knowledge. The purpose of this study is to verify the relationship between knowledge integration and independent innovation performance in software industry. Therefore, 132 projects of software industry are chosen as research samples. A theory model is constructed based on literature review, and independent...
We aim to detect salient mispronunciations in intonation of English speech uttered by Mandarin speakers. The goal of our project is to detect intonation errors and provide corrective feedback to English second language (ESL) learners. An intonational event includes the pitch accent and edge tone, and the intonation is closely related to the nuclear tone of an intonational phrase (IP). Hence, we first...
Enterprises are confronted with the challenge of reengineering technological capability during industry conversion. Tacit knowledge accumulated in the former industry is vital for reengineering new technological capability. The research aims at the effective approach to realize tacit knowledge transfer within enterprises during industry conversion. Therefore, the process of tacit knowledge transfer...
Successful project development depends on the ability to integrate external and internal knowledge. The purpose of this study is to understand the relationship between knowledge integration and project performance in equipment industry. Therefore, 73 R&D projects of equipment industry in Northeast China are chosen as research samples. A theory model is constructed based on literature review, and...
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