Improved Authenticated Multi-Key Agreement Protocol

Zhou et al give an attack on Ham＇s modified authenticated multi-key agreement protocol, and give a protocol that can prevent the unknown key-share attack. The paper points out that the protocol is vulnerable to a concatenation attack. This paper proposes an improved authenticated multi-key agreement protocol which shows how to make Harn＇s protocol more secure by modifying the signature and verification. And this protocol can escape the concatenation attack.     

A Neural Network Approach for Misuse and Anomaly Intrusion Detection

An MLP(Multi-Layer Perceptron)/ Elman neural network is proposed in this paper, which realizes classification with memory of past events using the real-time classification of MI.P and the memorial functionality of Elman. The system‘s sensitivity for the memory of past events can be easily reconfigured without retraining the whole network. This approach can be used for both misuse and anomaly detection system. The intrusion detection systems(IDSs) using the hybrid MLP/Elman neural network are evaluated by the intrusion detection evaluation data sponsored by U. S. Defense Advanced Research Projects Agency (DARPA). The results of experiment are presented in Receiver Operating Characteristic (ROC) curves. The capabilites of these IDSs to identify Deny of Service(DOS) and probing attacks are enhanced.     

A feedback-based web search engine

Web search engines are very useful information service tools in the Internet. The current web search engines produce search results relating to the search terms and the actual information collected hy them. Since the selections of the search results cannot affect the future ones. they may not cover most people‘s interests. In this paper, feedback informarion produced by the users‘ accessing lists will be represented By the rough set and can reconstruct the query string and influence the search results. And thus the search engines can provide self-adaptability.     

A New ID-Based Proxy Multi-Signature Scheme from Bilinear Pairings

ID-based public key cryptosystem can be a good alternative for certifieate-based public key setting. This paper provides an efficient ID-based proxy multi signature scheme from pairings. In the random oracle model, we prove that our new scheme is secure against existential delegation forgery with the assumption that Hess＇s scheme-1 is existential unforgeable, and that our new scheme is secure against existential proxy multi-signature forgery under the hardness assumption of the computational Diffie-Hellman problem.     

Web Voice Browser Based on an ISLPC Text.to.Speech Algorithm

A kind of Web voice browser based on improved synchronous linear predictive coding （ISLPC） and Text-toSpeech （TTS） algorithm and Internet application was proposed. The paper analyzes the features of TTS system with ISLPC speech synthesis and discusses the design and implementation of ISLPC TTS-based Web voice browser. The browser integrates Web technology, Chinese information processing, artificial intelligence and the key technology of Chinese ISLPC speech synthesis. It＇s a visual and audible web browser that can improve information precision for network users. The evaluation results show that ISLPC-based TTS model has a better performance than other browsers in voice quality and capability of identifying Chinese characters.     

Wigner frequency point slice analysis of superposition data for phased-array ground penetrating radar

According to the frequency property of Phasedarray ground penetrating radar (PGPR), this paper gives a frequency point slice method based on Wigner time-frequency analysis. This method solves the problem of analysis for the PGPR‘s superposition data and makes detecting outcome simpler and detecting target more recognizable. At last, the analytical, results of road test data of the Three Gorges prove the analytical method efficient.     

A New Kind of Subjective Trust Model

Based on the outstanding characteristics of Cloud Model on the process of transforming a qualitative concept to a set of quantitative numerical values, a formalized model of subjective trust is introduced by which we can transform between qualitative reputation and quantitative voting data. The present paper brings forward algorithms to compute direct trust and recommender trust. Further more, an effective similarity measuring method used to distinguish two users＇ reputation on knowledge level is also proposed. The given model properly settles the uncertainty and fuzziness properties of subjective trust which is always the weakness of traditional subjective trust model, and provides a step in the direction of proper understanding and definition of human trust.     

Clustering of Web learners based on rough set

The demand for individualized teaching from Elearning websites is rapidly increasing due to the huge differences existed among Web learners. A method for clusteringWeb learners based on rough set is proposed. The basic ideaof the method is to reduce the learning auributes prior to clustering, and therefore the clustering of Web learners iscarried out in a relative low-dimensional space. Using thismethod, the E-learning websites can arrange correspondingleaching content for different clusters of learners so that thelearners‘ individual requirements can be more satisfied.     

Optical Properties of Ru（bipy）2 （dppx）^2＋ in Different Environments

The emission spectra of Ru（bipy）2 （dppx）^2＋ in different environments has been studied. It was found that the solvent polarity and the ability of donating and transferring proton are the important factors in predicting luminescence intensity in different systems. The increasing content of water in the organic solutions of Ru（bipy）2 （dppx）^2＋ leads to de crease in emission intensity that follows the Perrin sphere of quenching model. The effect of base content of DNA on the fluorescence spectra of Ru （bipy）2 （dppx）^2＋ has also been studied.     

Analysis and Application for Integrity Model on Trusted Platform

To build a trusted platform based on Trusted Computing Platform Alliance (TCPA)‘s recommendation, we analyze the integrity mechanism for such a PC platform in this paper. By combinning access control model with information flow model, we put forward a combined process-based lattice model to enforce security. This model creates a trust chain by which we can manage a series of processes from a core root of trust module to some other application modules. In the model,once the trust chain is created and managed correctly,the integrity of the computer‘s hardware and sofware has been mainfained, so does the confidentiality and authenticity. Moreover, a relevant implementation of the model is explained.     

Effects of Micronutrient Niacin on Treatment Efficiency of Textile Wastewater

0 IntroductionMioclroogincuatlri pernotsce pslsaeys afo vrer wyais tmepwoarttaernt t rroelaetmine nbti- .A widerange of micronutrientsis required byactiva-ted sludge[1-5]. Adequate trace nutrient concentra-tions ,including metal ions and vitamins , are re-quiredtosupport all the genera presentinthe activa-ted sludgetreatment systemfor a diverse communityto survive. The lack of specific nutrients may resultin an unbalanced mixed culture,leading to poor-quality effluent , reduced treatment effic…     

Wiener-Hopf factorization of a class of matrix functions and Corona theorem

By using Riemann-Hilbert method and Corona theorem, Wiener-Hopf factorization for a class of matrix functions is studied. Under appropriate assumption, a sufficient and necessary condition for the existence of the matrix function admitting canonical factorization is obtained and the solution to a class of non-linear Riemann-Hilbert problem is also given. Furthermore, by means of non-standard Corona theorem partial estimation of the general factorization can be obtained. Foundation item: Supported by the National Natural Science Foundation of China(10471107) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (20060486001)     

An Efficient Grid Service Discovery Mechanism Based on the Locality Principle

With the explosion of services in grid environment, it＇s necessary to develop a mechanism which has the ability of discovering suitable grid services efficiently. This paper attempts to establish a layered resource management model based on the locality principle which classifies services into different domains and virtual organizations （VOs） according to their shared purposes. We propose an ontologybased search method applying the ontology theory for characterizing semantic information. In addition, we extend the UD- D1 in querying, storing, and so on. Simulation experiments have shown that our mechanism achieves higher performance in precision, recall and query response time.     

A novel trust enhanced grid authentication mechanism

To improve trustworthiness in grid authentication, a novel trust enhanced grid authentication mechanism （TEGAM） is proposed in this paper where trust is divided into trust on grid entity （GE） and trust on third party （TP）. In order to obtain precise trust evaluation on GE＇s behaviors, trust on GE is further subdi- vided into trust as service consumer and trust as service provider. Details for the structure of TEGAM and related TEGAM-based authentication process are also given. Simulation results and prop- erty analysis show that, compared with current trust-based grid authentication techniques, TEGAM can not only help establish explicit and dynamic trust relationships among grid entities but also will significantly increase the efficacy of grid authentication.     

An Anonymous Payment Protocol with Mobile Agents in Hostile Environments

By using Pedersen‘s verifiable secret sharing scheme and the theory of cross validation, we propose an anonymous payment protocol which have following features: protecting the confidentiality of sensitive payment information from spying by malicious hosts; using a trusted third party in a minimal way; verifying the validity of the share by the merchant; allowing agent to verify that the product which it is about to receive is the one it is paying for; keeping the customer anonymous.     

BloomRouter： A Framework for Dissemination of Compressed XML Stream

As our best knowledge, in the Publish/Subscribe application environment, few research work has been done on the dissemination and routing of compressed XML （extended markup language） data. A high-speed compressed XML data routing and dissemination framework BloomRouter is proposed. In BloomRouter, a Bloom Filter based prefilte ring mechanism is used to filter out compressed XML elements that users do not care; after that an interval tree dis seminator forwards target elements to the corresponding end users by matching the incomming compressed XML elements with indexed users＇ query regions. Based on this framework, we can efficiently filter/query the compressed incoming XML data, and then route the query result to the corresponding subseriber.     

Integrating Multi-Source Web Records into Relational Database

How to integrate heterogeneous semi-structured Web records into relational database is an important and challengeable research topic. An improved model of conditional random fields was presented to combine the learning of labeled samples and unlabeled database records in order to reduce the dependence on tediously hand-labeled training data. The pro- posed model was used to solve the problem of schema matching between data source schema and database schema. Experimental results using a large number of Web pages from diverse domains show the novel approach＇s effectiveness.     

Orientl: A strategy of Web information integration

We propose the OrientI approach for effectively building flexible applications on information integration. The system presents a fully visual development environment tobuild applications. With Orient I system, a user only needs to concentrate on the composition of components for building the InterPlan. and the detailed underlying operations and data streams are invisible to the user. A prototype system has been implemented and has partially proved the convenience hrought by the Orient] approach.     

Empirical measurement of the software testing and reliability

The meanings of parameters of software reliability models are investigated in terms of the process of the software testing and in terms of other measurements of software. Based on the investigation, the empirical estimation of the parameters is addressed. On one hand, these empirical estimates are also measurements of the software, which can beused to control and to optimize the process of the software development. On the other hand, by treating these empirical estimates as Bayes priors, software reliability models are ex-tended such that the engineers‘ experience can be integrated into and hence to improve the models.