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| 1 | A New Evolutionary Algorithm for Function Optimization显示文摘A new algorithm based on genetic algorithm(GA) is developed for solving function optimization problems with inequality constraints. This algorithm has been used to a series of standard test problems and exhibited good performance. The computation results show that its generality, precision, robustness, simplicity and performance are all satisfactory. | GUO Tao, KANG Li shan State Key Laboratory of Software Engineering, Wuhan University,Wuhan 430072, China | 1999 | Wuhan University Journal of Natural Sciences1999，4，4： | 37 |
| 2 | Supply Chain Coordination with Demand Disruptions under Convex Production Cost Function显示文摘This paper investigates the problem of how to handling demand disruptions in a one-supplier-one-retailer supply chain, where production cost is a convex function of production quantity andprice-demand relationship is linear. Our results show that, if demand is disrupted, under the new price-demand relationship, all-unit wholesale quantity discount policies combining capacitated linear pricingpolicies can also fully coordinate the supply chain. | XUMing-hui GAOCheng-xiu | 2005 | Wuhan University Journal of Natural Sciences2005，10，3： | 29 |
| 3 | Selection of the Linear Regression Model According to the Parameter Estimation显示文摘In this paper,based on the theory of parameter estimation,we give a selection method and,in a sense or a good character of the parameter estimation,we think that it is very reasonable. Moreover,we offer a calculation method of selection statistic and an applied example. | Sun Dao-de Department of Computer, Fuyang Teachers College, Anhui 236032,China | 2000 | Wuhan University Journal of Natural Sciences2000，5，4： | 28 |
| 4 | Physical Location of the Rice Pi-5(t), Glh and RTSV Genes by ISH of BAC Clones显示文摘Mapplng of low of slngle-copy sequences on plant chromosomes has proven dirricult because ofvery low frequency or slgnal detectlon. Rlce BAC Ilbrary ls belng used wldely ln rlce genome research due tolts distlnctlve advantages over other llbrary systems. In tkls study, two blotln-Iabeled rice BAC clones closelylinked to a rlce blast reslstance, green Ieaf hopper reslstance and tungro spherlcal virus resistance gene,Pi-5(t),Glh, RTSV, were in situ hybrldlred to rlce ckromosomes. They were located on the long arm andshort arm of ckromosome 4 with FL value of 40% and 100% respectively-The rrequency of signal detectionreacked 46. 8% and 59- 2%- The slgnal location were conslstent wltk the selectlve marker on rice saturatedm0Iecular map. The results demonstrated the advautages to Iocate BAC cIones to ckromosomes by in sho hybrldization and will racilitate tke rlce low of slngle-copy gene Iocation by using the BAC library. | Yan Huimin, Song Yunchun, Li Lijia, Bi Xuezhi, Fu Binying(College of Life Sciences, Wuhan University, Wuhan 430072, China) | 1998 | Wuhan University Journal of Natural Sciences1998，3，2： | 24 |
| 5 | Efficient Certificateless Authenticated Key Agreement Protocol from Pairings显示文摘In the area of secure Web information system, mutual authentication and key agreement are essential between Web clients and servers. An efficient certificateless authenticated key agreement protocol for Web client/server setting is proposed, which uses pairings on certain elliptic curves. We show that the newly proposed key agreement protocol is practical and of great efficiency, meanwhile, it satisfies every desired security requirements for key agreement protocols. | WANG Shengbao CAO Zhenfu WANG Licheng | 2006 | Wuhan University Journal of Natural Sciences2006，11，5： | 23 |
| 6 | Two-Party Authenticated Key Agreement in Certificateless Public Key Cryptography显示文摘Certificateless public key cryptography was introduced to overcome the key escrow limitation of the identity-based cryp- tography. It combines the advantages of the identity-based cryp- tography and the traditional PKI. Many certificateless public key encryption and signature schemes have been proposed. However, the key agreement in CL-PKE is seldom discussed. In this paper, we present a new certificateless two party authentication key agreement protocol and prove its security attributes. Compared with the existing protocol, our protocol is more efficient. | SHI Yijuan LI Jianhua | 2007 | Wuhan University Journal of Natural Sciences2007，12，1： | 23 |
| 7 | Keyword Extraction Based on tf/idf for Chinese News Document显示文摘Keyword extraction is an important research topic of information retrieval. This paper gave the specification of key- words in Chinese news documents based on analyzing linguistic characteristics of news documents and then proposed a new key- word extraction method based on tf/idf with multi-strategies. The approach selected candidate keywords of uni-, bi-and tri-grams, and then defines the features according to their morphological characters and context information. Moreover, the paper proposed several strategies to amend the incomplete words gotten from the word segmentation and found unknown potential keywords in news documents. Experimental results show that our proposed method can significantly outperform the baseline method. We also applied it to retrospective event detection. Experimental results show that the accuracy and efficiency of news retrospective event detection can be significantly improved. | LI Juanzi FAN Qi'na ZHANG Kuo | 2007 | Wuhan University Journal of Natural Sciences2007，12，5： | 23 |
| 8 | Autophagy Plays a Potential Role in the Process of Sea Cucumber Body Wall “Melting” Induced by UV Irradiation显示文摘The changes of tissue appearances and structures in the process of UV-induced 'melting' for sea cucumber (Stichopus japonicus) body wall were studied.And the localization and determination of acid phosphatase (ACP),Cathepsin B and Cathepsin L activities were also investigated.The results show that the connective tissue was damaged with many hollows emerging and the regular collagen bundles were broken apart into irregular fragments.Margination of condensed chromatin at the nuclear membrane was observed.Both Golgi’s body and endoplasmic reticulum swelled,curled,and eventually double-or multi-lamellar vesicles were formed.A number of autophagic vesicles distributed in all through the whole cytoplasm.ACP be-comes more active after UV irradiation.The activities of cathepsin B and cathepsin L increased in UV-treated sea cucumbers and both achieved their maximum under certain conditions.It indicates that autophagy plays a potential role in the 'melting' process for sea cucumber body wall induced by UV irradiation. | ZHU Beiwei ZHENG Jie ZHANG Zongshen DONG Xiuping ZHAO Lulu Tada Mikiro | 2008 | Wuhan University Journal of Natural Sciences2008，13，2： | 23 |
| 9 | A Tentative Research on Complexity of Automatic Programming显示文摘In this paper, based on the following theoretical framework: Evolutionary Algorithms + Program Structures = Automatic Programming , some results on complexity of automatic programming for function modeling is given, which show that the complexity of automatic programming is an exponential function of the problem dimension N , the size of operator set |F| and the height of the program parse tree H . Following this results, the difficulties of automatic programming are discussed. Some function models discovered automatically from database by evolutionary modeling method are given, too. | Kang Li\|shan, Li Yan, Chen Yu\|ping Computation Center, State Key Laboratory of Software Engineering,Wuhan University,Wuhan 430072,China | 2001 | Wuhan University Journal of Natural Sciences2001，6，Z1： | 18 |
| 10 | Stable Initialization Scheme for K-Means Clustering显示文摘Though K-means is very popular for general clustering, its performance, which generally converges to numerous local minima, depends highly on initial cluster centers. In this paper a novel initialization scheme to select initial cluster centers for K-means clustering is proposed. This algorithm is based on reverse nearest neighbor (RNN) search which retrieves all points in a given data set whose nearest neighbor is a given query point. The initial cluster centers computed using this methodology are found to be very close to the desired cluster centers for iterative cluster-ing algorithms. This procedure is applicable to clustering algo-rithms for continuous data. The application of the proposed algo-rithm to K-means clustering algorithm is demonstrated. An ex-periment is carried out on several popular datasets and the results show the advantages of the proposed method. | XU Junling XU Baowen ZHANG Weifeng ZHANG Wei HOU Jun | 2009 | Wuhan University Journal of Natural Sciences2009，14，1： | 15 |
| 11 | Effects of Zn Stress on Zn Accumulation and Anti-Oxidant Enzymes Activity in Four Varieties of Ryegrass显示文摘We investigated the influence of different content of Zn^2+ (0, 2, 4, 8, 16 mmol·kg^-1) on plant growth, activities of peroxidase (POD) and superoxide dismutase (SOD), free proline content and Zn accumulation in four varieties of ryegrass (Loliurn perenne L.) by pot culture experiment. The results showed that plant biomass increased at the ranges of 0-2 (Tuoya), 0-4(Yeying), 0-8 mmol·kg^-1 (Airuisi and Taide), respectively, and then decreased under excess Zn. The activities of POD, SOD and proline content in shoots decreased firstly, and then increased with the increase of Zn content. The plant biomass, activities of POD and SOD in Taide were evidently higher than in the other three varieties. Root tolerance index (RTI) and Zn transport ratio from root to shoot (S/R) in Taide were exceed 1.0. The maximum of Zn content was 583.9 mg/kg ( at 16 mmol·kg^-1) in Taide’s shoot. | XU Wei-hong XIONG Zhi-ting HUANG He | 2005 | Wuhan University Journal of Natural Sciences2005，10，6： | 14 |
| 12 | Design and Implementation of On-Line Hot Topic Discovery Model显示文摘Internet has become a major medium for information transmission, how to detect hot topic on web, track the event development and forecast emergency is important to many fields, particularly to some government departments. On the basis of the researches in the field of topic detection and tracking, we propose a model for hot topic discovery that will pick out hot topics by automatically detecting, clustering and weighting topics on the websites within a time period. Based on the idea of stock index, we also introduce a topic index approach in following the growth of topics, which is useful to analyze and forecast the development of topics on web. | YE Hui-min CHENG Wei DAI Guan-zhong | 2006 | Wuhan University Journal of Natural Sciences2006，11，1： | 14 |
| 13 | A New (t, n) Threshold Signature Scheme Withstanding the Conspiracy Attack显示文摘A conspiracy attack is proposed to show that Wang-Li’s scheme is insecure, because any t or more group members can impersonate other t members to sign any message without holding the responsibility. To avoid the conspiracy attack, this paper presents a new (t,n) threshold signature scheme with traceable signers. | XIE Qi 1,2, YU Xiu-yuan 3 1.Department of Mathematics, Zhejiang University, Hangzhou 310027, Zhejiang,China 2.School of Information and Engineering, Hangzhou Teachers College, Hangzhou 310012, Zhejiang, China 3.Hangzhou Teachers College, Hangzhou 310012, Zhejiang, China | 2005 | Wuhan University Journal of Natural Sciences2005，10，1： | 13 |
| 14 | Selection of Adaptive Grass and Frutex and Their Planting Benefits in the Arid-Hot Valleys of Yuanmou显示文摘In view of the environment character of the soil and content of the soil organic carbon, 278 species of grass and frutex were introduced from abroad and China, Some were selected by applied production and plantation benefit investigations. The results showed that:In the arid-hot valleys of Yuanmou the selected species showed the characteristics of fast growth and high yield (38 227.00 kg/hm2), high nutrition value (CP% content of legu-minous grass and frutex were 22.47%), as well as the strong adversity resistance to high air temperature and arid climate (soil humidity was 3.4%). The selected species not only effectively meliorated soil and increased fertility, but also improved small environment weather. | LONG Huiying SHA Yucang ZHU Hongye ZHANG Yingcui JIN Jie SHI Liangtao | 2008 | Wuhan University Journal of Natural Sciences2008，13，3： | 13 |
| 15 | Bottom Factors Applied to the Zoning Study of the Risk Levels of Landslides in the Three Gorges Reservoir Area显示文摘Without taking inducing factors into consideration, this paper adopts a quantitative analysis of the bottom factors in the Three Gorges Reservoir area, studies the relationship between the bottom factors and the development of landslides, and then zones the area according to risk levels. The bottom factors adopted in this paper include lithological characters(U_ 1 ), gradient(U_ 2 ), slope form(U_ 3 ), difference of height(U_ 4 ), and slope orientation(U_ 5 ). In 4 650 km 2 of the studied area, the areas of the very high, high, medium and low hazard degree area respectively were 57.94 km 2 , 2 305.15 km 2 , 1 241.6 km 2 , 1 045.31 km 2 . The methodological steps are ① inversion statistic analysis, ② the analysis of contribution ratio and weighing, ③ getting results via fuzzy evaluation of risk levels. | QIAO Jianping ZHU Axing WU Caiyan TIAN Hongling | 2006 | Wuhan University Journal of Natural Sciences2006，11，4： | 12 |
| 16 | Tele-Network Design Based on Queue Competition Algorithm显示文摘In this paper, we report research on how to design the tele-network. First of all, we defined the reliability of tele-network. According to the definition, we divide the whole reliability into two parts:the reliability of the mini-way and that of the whole system. Then we do algebra unintersection of the mini-way, deriving a function of reliability of tele-network. Also, we got a function of the cost of tele-network after analyzing the cost of arcs and points. Finally, we give a mathematical model to design a tele-network. For the algorithm, we define the distance of a network and adjacent area within certain boundaries . We present a new algorithm--Queue Competition Algorithm (QCA) based on the adjacent area . The QCA correlates sequence of fitnesses in their father-generations with hunting zone of mutation and the number of individuals generated by mutation, making the stronger fitness in a small zone converge at a local extreme value, but the weaker one takes the advantage of lots of individuals | Huang Zhang-can, Wan Li-jun, Tang Tao, Chen Zheng-xuState Key Laboratory of Software Engineering, Wuhan University, Wuhan 430072, Hubei, ChinaSchool of Material Science and Engineering, Wuhan University of Technology , Wuhan 430070, Hubei, ChinaSchool of Automation, Wuhan University of Technology, Wuhan 430070, Hubei, ChinaSchool of Science, Wuhan University of Technology, Wuhan 430070, Hubei, China | 2003 | Wuhan University Journal of Natural Sciences2003，8，S1： | 12 |
| 17 | SLEACH: Secure Low-Energy Adaptive Clustering Hierarchy Protocol for Wireless Sensor Networks显示文摘LEACH (Low-Energy Adaptive Clustering Hierarchy) protocol is a basic clustering-based routing protocol of sensor networks. In this paper, we present the design of SLEACH, a secure extension for the LEACH protocol. We divide SLEACH into four phases and fit inexpensive cryptographic operations to each part of the protocol functionality to create an efficient, practical protocol. Then we give security analyses of SLEACH. Our security analyses show that our scheme is robust against any external attacker or compromised nodes in the sensor | WANGXiao-yun YANGLi-zhen CHENKe-fei | 2005 | Wuhan University Journal of Natural Sciences2005，10，1： | 12 |
| 18 | Efficient Authenticated Key Agreement Protocol Using Self-Certified Public Keys from Pairings显示文摘An efficient authenticated key agreement protocol is proposed,which makes use of bilinear pairings and self-certified public keys. Its security is based on the security assumptions of the bilinear Diffie-Hellman problem and the computational Diffie-Hellman problem. Users can choose their private keys independently. The public keys and identities of users can be verified implicitly when the session key being generating in a logically single step. A trusted Key Generation Center is no longer required as in the ID-based authenticated key agreement protocols. Compared with existing authenticated key agreement protocols from pairings, the new proposed protocol is more efficient and secure. | SHAOZu-hua | 2005 | Wuhan University Journal of Natural Sciences2005，10，1： | 12 |
| 19 | Static Extracting Method of Software Intended Behavior Based on API Functions Invoking显示文摘The method of extracting and describing the intended behavior of software precisely has become one of the key points in the fields of software behavior's dynamic and trusted authentica-tion. In this paper,the author proposes a specified measure of ex-tracting SIBDS (software intended behaviors describing sets) statically from the binary executable using the software's API functions invoking,and also introduces the definition of the struc-ture used to store the SIBDS in detail. Experimental results dem-onstrate that the extracting method and the storage structure defi-nition offers three strong properties: (i) it can describe the soft-ware's intended behavior accurately; (ii) it demands a small stor-age expense; (iii) it provides strong capability to defend against mimicry attack. | PENG Guojun PAN Xuanchen FU Jianming ZHANG Huanguo | 2008 | Wuhan University Journal of Natural Sciences2008，13，5： | 11 |
| 20 | Soliton Solution of the DNLS Equation Based on Hirota's Bilinear Derivative Transform显示文摘Based on the method of Hirota's bilinear derivative transform, the derivative nonlinear Schrdinger equation with vanishing boundary condition has been directly solved. The oneand two-soliton solutions are given as two typical examples in the illustration of the general procedures and the concrete cut-off technique of the series-form solution, and the n-soliton solution is also attained by induction method. Our study shows their equivalence to the existing soliton solutions by a simple parameter transformation. The methodological importance of bilinear derivative transform in dealing with an integrable nonlinear equation has also been emphasized. The evolution of one and two-soliton solution with respect to time and space has been discussed in detail. The collision among the solitons has been manifested through an example of two-soliton case, revealing the elastic essence of the collision and the invariance of the soliton form and characteristics. | ZHOU Guoquan BI Xintao | 2009 | Wuhan University Journal of Natural Sciences2009，14，6： | 11 |
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