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Search Results: 1 - 10 of 28107 matches for " Zijiang Zhu "
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Research on Parameter Optimization in Collaborative Filtering Algorithm  [PDF]
Zijiang Zhu
Communications and Network (CN) , 2018, DOI: 10.4236/cn.2018.103009
Abstract: Collaborative filtering algorithm is the most widely used and recommended algorithm in major e-commerce recommendation systems nowadays. Concerning the problems such as poor adaptability and cold start of traditional collaborative filtering algorithms, this paper is going to come up with improvements and construct a hybrid collaborative filtering algorithm model which will possess excellent scalability. Meanwhile, this paper will also optimize the process based on the parameter selection of genetic algorithm and demonstrate its pseudocode reference so as to provide new ideas and methods for the study of parameter combination optimization in hybrid collaborative filtering algorithm.
Exploration on the Construction of Applied Computer Specialty Curriculum System  [PDF]
Zijiang Zhu, Junshan Li, Yi Hu
Creative Education (CE) , 2018, DOI: 10.4236/ce.2018.911123
Abstract: In view of the problems existing in the traditional professional curriculum system at colleges and universities to cultivate applied undergraduate talents in computer software, this paper, following the concept of “demand-oriented, ability as the core, integration of science and engineering as well as theories and application” and on the basis of deep school-enterprise cooperation, integration of industry and teaching, proposes the “four-connection” professional curriculum system to cultivate applied undergraduate software talents: connecting ability cultivation with the demands for software positions, connecting the curriculum contents with software standard, connecting teaching with development, and connecting incubation projects with the industrial market. And this paper also proposes four measures to guarantee the construction of school-enterprise cooperation: the supporting platform, teaching team, teaching resources and quality guarantee system.
An Improved Three-Dimensional Model for Emotion Based on Fuzzy Theory  [PDF]
Zijiang Zhu, Junshan Li, Xiaoguang Deng, Yi Hu
Journal of Computer and Communications (JCC) , 2018, DOI: 10.4236/jcc.2018.68008
Abstract: Emotion Model is the basis of facial expression recognition system. The constructed emotional model should not only match facial expressions with emotions, but also reflect the location relationship between different emotions. In this way, it is easy to understand the current emotion of an individual through the analysis of the acquired facial expression information. This paper constructs an improved three-dimensional model for emotion based on fuzzy theory, which corresponds to the facial features to emotions based on the basic emotions proposed by Ekman. What’s more, the three-dimensional model for motion is able to divide every emotion into three different groups which can show the positional relationship visually and quantitatively and at the same time determine the degree of emotion based on fuzzy theory.
RETRACTED: Realization of Virtual Human Face Based on Deep Convolutional Generative Adversarial Networks  [PDF]
Zijiang Zhu, Xiaoguang Deng, Junshan Li, Eryou Wei
Journal of Signal and Information Processing (JSIP) , 2018, DOI: 10.4236/jsip.2018.93013

Short Retraction Notice

The authors claim that this paper needs modifications.

This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused.

Editor guiding this retraction: Prof. Baozong Yuan(EiC of JSIP)

The full retraction notice in PDF is preceding the original paper, which is marked \"RETRACTED\".

Dense fog events in the Yangtze Delta and their climatic characteristics

Zhou Zijiang,Zhu Yanjun,Ju Xiaohui,

自然科学进展 , 2007,
Characteristics of the Heat Island Effect in Shanghai and Its Possible Mechanism
CHEN Longxun,ZHU Wenqin,ZHOU Xiuji,ZHOU Zijiang,
CHEN Longxun
,ZHU Wenqin,ZHOU Xiuji,ZHOU Zijiang

大气科学进展 , 2003,
Abstract: The characteristics of the urban heat island effect and the climate change in Shanghai and its possible mechanism are analyzed based on monthly meteorological data from 1961 to 1997 at 16 stations in Shanghai and its adjacent areas. The results indicate that Shanghai City has the characteristics of a heat island of air temperature and maximum and minimum air temperature, a cold island of surface soil temperature, a weak rainy island of precipitation, and a turbid island of minimum visibility and aerosols, with centers at or near Longhua station (the urban station of Shanghai). Besides theses, the characteristics of a cloudy island and sunshine duration island are also obvious, but their centers are located in the southern part of the urban area and in the southern suburbs. A linear trend analysis suggests that all of the above urban effects intensified from 1961 to 1997. So far as the heat island effect is concerned, the heat island index (difference of annual temperature between Longhua and Songjiang stations) strengthens (weakens) as the economic development increases (decreases). The authors suggest that the heating increase caused by increasing energy consumption due to economic development is a main factor in controlling the climate change of Shanghai besides natural factors. On the other hand, increasing pollution aerosols contribute to the enhancement of the turbid island and cooling. On the whole, the heating effect caused by increasing energy consumption is stronger than the cooling effect caused by the turbid island and pollution aerosols.
Bank Branch Operating Efficiency: A DEA Approach
Zijiang Yang
Lecture Notes in Engineering and Computer Science , 2009,
Performance Analysis of Canadian Power Industry Using Data Envelopment Analysis
Zijiang Yang
International Journal of Computer and Electrical Engineering , 2013, DOI: 10.7763/ijcee.2013.v5.688
Abstract: Canada’s electric utility industry has played an important part in the country’s history and development. Performance analysis for Canadian power industry is essential. This paper evaluates the performance of 19 Canadian power companies using Data Envelopment Analysis. The results show that the studied Canadian power companies operate very efficiently and company size has a negative effect on the performance.
The Chemical State of a Silver-Copper Complex Image Formed during the Electroless Copper Deposition  [PDF]
Yiheng Zhang, Xingjian Li, Zijiang Yang
Natural Science (NS) , 2014, DOI: 10.4236/ns.2014.611082

By means of electroless copper deposition method a complex image has been fabricated in a mixture of cupric sulphate and formaldehyde, the surface and subsurface properties of which has been studied in detail by X-ray photoelectron spectroscopy (XPS) combined with sputter depth profiling technique analyzing distribution and chemical state of copper and silver. Depth profiling by XPS in conjunction with Ar+ sputtering shows that the catalytic activity of silver persists, catalyzing reduction of copper. The integral areas of spectra Ag3d after electroless copper deposition for 5 min at different sputtering times demonstrate that the amount of silver at the surface is greater than that in the interior. And then, the quite likely reasonable explanations are provided for the result. Additionally, the chemical shift of Ag3d XPS and deconvolution of Ag3d XPS spectrum have been also analyzed respectively at length.

Typical severe dust storms in northern China during 1954 —2002
Zijiang Zhou,Guocai Zhang
Chinese Science Bulletin , 2003, DOI: 10.1360/03wd0029
Abstract: Based on China’s available daily observation data from 681 national meteorological stations from 1954 to 2002, a time series of typical severe dust storms in northern China is constructed in terms of the weather process, and the temporal and spatial distribution, and their evolution tendency is analyzed. The results indicate that there were 223 relatively typical severe dust storms in northern China from 1954 to 2002, among which the event on April 10–12, 1979 had the largest affected area. Closely associated with the geographical distribution of deserts, sandy lands and the tracks of strong cold air outbreaks, severe dust storms mainly occurred in the Tarim Basin, the eastern part of Northwest China and the northern part of North China. The season with the most frequent severe dust storms was spring, in which the frequency accounts for 82.5% in the whole year, while the least occurrence was in summer and autumn. During the past 49 years, the highest frequency of severe dust storms occurred in the 1950s and the lowest was in the 1990s with a general descending tendency, but during 2000–2002 the occurrence was relatively increasing. On the average, the duration of severe dust storms was shortest in the 1990s, about 0.5–1 h shorter than that in the other 4 decades.
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