Hefei University of Technology

About: Hefei University of Technology is a education organization based out in Hefei, China. It is known for research contribution in the topics: Computer science & Microstructure. The organization has 28093 authors who have published 24935 publications receiving 324989 citations.

Discriminative Fisher Embedding Dictionary Learning Algorithm for Object Recognition

Abstract: Both interclass variances and intraclass similarities are crucial for improving the classification performance of discriminative dictionary learning (DDL) algorithms. However, existing DDL methods often ignore the combination between the interclass and intraclass properties of dictionary atoms and coding coefficients. To address this problem, in this paper, we propose a discriminative Fisher embedding dictionary learning (DFEDL) algorithm that simultaneously establishes Fisher embedding models on learned atoms and coefficients. Specifically, we first construct a discriminative Fisher atom embedding model by exploring the Fisher criterion of the atoms, which encourages the atoms of the same class to reconstruct the corresponding training samples as much as possible. At the same time, a discriminative Fisher coefficient embedding model is formulated by imposing the Fisher criterion on the profiles (row vectors of the coding coefficient matrix) and coding coefficients, which forces the coding coefficient matrix to become a block-diagonal matrix. Since the profiles can indicate which training samples are represented by the corresponding atoms, the proposed two discriminative Fisher embedding models can alternatively and interactively promote the discriminative capabilities of the learned dictionary and coding coefficients. The extensive experimental results demonstrate that the proposed DFEDL algorithm achieves superior performance in comparison with some state-of-the-art dictionary learning algorithms on both hand-crafted and deep learning-based features.

A case study of industrial symbiosis: Nanning Sugar Co., Ltd. in China

Abstract: Industrial symbiosis activities are being implemented in the philosophy of “circular economy” in China. Integrating industrial symbiosis into the corporate development plans to optimize materials and energy flows is a feasible strategy for many corporations in their transition between nonsustainable and sustainable development. By constructing industrial ecosystems, Nanning Sugar Co., Ltd. in China, has achieved the successful transition from a traditional corporation to a sustainable corporation, or rather, a circular corporation. This study expounds on its whole transition course to a circular complex in the past decade, in which four factors are essential to making this symbiosis achievable: rational production structures; raw materials advantages; technical supports and correct diversification. The corporation is in charge of almost all the aspects of its affiliated companies and the management mode, in particular, differing from that of industrial symbiosis systems in Kalundborg, is considered another potential factor contributing to the corporate success. The transition mode in question is hoped to point to a feasible development path for similar corporations.