The four-volume set LNCS 4487-4490 constitutes the refereed proceedings of the 7th International Conference on Computational Science, ICCS 2007, held in Beijing, China in May 2007. More than 2400 submissions were made to the main conference and its 35 topical workshops. The 80 revised full papers and 11 revised short papers of the main track were carefully reviewed and selected from 360 submissions and are presented together with 624 accepted workshop papers in four volumes. According to the ICCS 2007 theme "Advancing Science and Society through Computation" the papers cover a large volume of topics in computational science and related areas, from multiscale physics, to wireless networks, and from graph theory to tools for program development. The papers are arranged in topical sections on efficient data management, parallel monte carlo algorithms, simulation of multiphysics multiscale systems, dynamic data driven application systems, computer graphics and geometric modeling, computer algebra systems, computational chemistry, computational approaches and techniques in bioinformatics, computational finance and business intelligence, geocomputation, high-level parallel programming, networks theory and applications, collective intelligence for semantic and knowledge grid, collaborative and cooperative environments, tools for program development and analysis in CS, intelligent agents in computing systems, CS in software engineering, computational linguistics in HCI, internet computing in science and engineering, workflow systems in e-science, graph theoretic algorithms and applications in cs, teaching CS, high performance data mining, mining text, semi-structured, Web, or multimedia data, computational methods in energy economics, risk analysis, advances in computational geomechanics and geophysics, meta-synthesis and complex systems, scientific computing in electronics engineering, wireless and mobile systems, high performance networked media and services, evolution toward next generation internet, real time systems and adaptive applications, evolutionary algorithms and evolvable systems.

Table of Contents:
A Novel Description of Multifractal Phenomenon of Network Traffic Based on Generalized Cauchy Process.- Rotation Invariant Texture Classification Using Gabor Wavelets.- Harmful Contents Classification Using the Harmful Word Filtering and SVM.- HVEM Control System Based on Grid: A Cornerstone of e-Biology.- Speedup Analysis for Parallel Implementation of Model of Response Accuracy and Response Time in Computerized Testing.- Resource Load Balancing Based on Multi-agent in ServiceBSP Model.- Group-Based Key Management for Multicast of Ad Hoc Sensor Network.- An Accurate and Fast WLAN User Location Estimation Method Based on Received Signal Strength.- Optimization of the Switches in Storage Networks.- Migration Control of Bio-entities in the Bio-network Middleware.- A Web Portal for Regional Projection of Weather Forecast Using GRID Middleware.- Multi-robot Cooperation Based on Hierarchical Reinforcement Learning.- Analysis on Spatio-temporal Characteristics of Wintertime Planetary Wave inthe Northern Hemisphere Based on 2D FFT.- DECP: A Distributed Election Clustering Protocol for Heterogeneous Wireless Sensor Networks.- Catastrophe Prediction of Cnaphalocrosis Medinalis Based on Fuzzy Reasoning.- Preconditioned Krylov Subspace Methods Solving Dense Nonsymmetric Linear Systems Arising from BEM.- Research on Bio-inspired Multi-net Paralleling Mechanism Based on Web Application.- DRN: A CORBA-Based Distributed Resource Navigation System for Data Grid.- A Research on Local Mean in Empirical Mode Decomposition.- An Energy-Efficient Routing Method of Wireless Sensor Networks.- Rapid-Response Replication: A Fault Tolerant Algorithm Based on Active Replication.- An Algorithm for Improving Hilbert-Huang Transform.- Experiment of Event Injection Technology for Network Dependability Evaluation.- Analysis on Construction of a Sub-sea Tunnel.- Rotation Invariant Texture Classification Using Circular Gabor Filter Banks.- A Clustering Algorithm Based on Power for WSNs.- Analysis ofLocal Route Maintenance for Ad Hoc Network.- Evaluation of Historic Buildings Based on Structural Equation Models.- An Adaptive Energy-Efficient and Low-Latency MAC Protocol in Wireless Sensor Networks.- Healthcare Information Management System in Home Environment.- Boundary Processing of HHT Using Support Vector Regression Machines.- Water Mine Model Recognition by Immune Neural Network.- Composing Different Models of Computation in Kepler and Ptolemy II.- WS-VLAM: A GT4 Based Workflow Management System.- Distributed Applications from Scratch: Using GridMD Workflow Patterns.- Heterogeneous Workflows in Scientific Workflow Systems.- A Multi-agent System for Cross-Organizational Workflows Management Based on Process-View.- Towards a Formal Foundation for Aggregating Scientific Workflows.- Autonomic Workflow Management in the Grid.- Framework for Workflow Parallel Execution in Grid Environment.- Toward Dynamic Adoption for a User’s Situation Information in a Context-Aware Workflow System.- A Dataflow-Oriented Atomicity and Provenance System for Pipelined Scientific Workflows.- Dynamic Workflow Management for P2P Environments Using Agents.- Analyzing Data Dependence Based on Workflow Net.- Knowledge-Based Grid Workflow System.- Building Scientific Workflows for Earth System Modelling with Windows Workflow Foundation.- Balancing Quality and Performance of Task Distribution in Workflow Based on Resource Aptitude.- A Process Meta Model to Support Policy Based Management in Workflow System.- Using Gavish-Grave LP to Formulate the Directed Black and White Traveling Salesman Problem.- Semicomplete Multipartite Digraphs Whose Every Arc Is Contained in a Hamiltonian Path.- The Roman Domination Problem in Unit Disk Graphs.- Binding Number and Connected (g,f?+?1)-Factors in Graphs.- Some Results on List Total Colorings of Planar Graphs.- Linear Polynomial-Time Algorithms To Construct 4-Connected 4-Regular Locally Connected Claw-Free Graphs.- Connectivity of Connected BipartiteGraphs with Two Orbits.- Heavy Cycles in 2-Connected Weighted Graphs with Large Weighted Degree Sums.- Componentwise Complementary Cycles in Almost Regular 3-Partite Tournaments.- Sharp Bounds for the Oriented Diameters of Interval Graphs and 2-Connected Proper Interval Graphs.- A Class of Graphs of f-Class 1.- The Vertex-Neighbor-Integrity of Digraphs.- Hamiltonian Connected Line Graphs.- A Degree-Condition for (s, t)-Supereulerian Graphs.- On (s, t)-Supereulerian Locally Connected Graphs.- A Linear Algorithm for Edge-Face Coloring Series-Parallel Graphs.- Even Factors with Degree at Most Four in Claw-Free Graphs.- Finding the (n, k, 0)-Extendability in Bipartite Graphs and Its Application.- An Algorithm to Solve the Partition into Perfect Matchings Problem in Halin Graphs.- A Graph-Theory Algorithm for WCET Estimation.- Context-Aware Optimal Assignment of a Chain-Like Processing Task onto Chain-Like Resources in M-Health.- On Efficiency Group Multicasting Algorithm with Multiple Minimum Steiner Trees.- The Edge Connectivity of Circuit Graphs of Matroids.- An Incremental Learning Algorithm Based on Rough Set Theory.- On f-Edge Cover-Coloring of Simple Graphs.- Upper Bounds on the D(?)-Vertex-Distinguishing Edge-Chromatic Numbers of Graphs.- The Equitable Edge-Coloring of Series-Parallel Graphs.- A Low Complexity Intrusion Detection Algorithm.- Most Power Reliable Paths Algorithm for Maximizing the Lifetime of Energy Constrained Sensor Networks.- From Mathematics to Software Engineering: Introducing Category Theory into the Computer Science Curriculum.- Avatar Augmented Annotation Interface for e-Learning.- Education–Oriented Virtual Environment for Clothing Thermal Functional Performance.- A Question Understanding Model Based on Knowledge Points for Chinese Question Answering Service in E-Learning.- Focus and Attitude in Computer-Mediated Peer Assessment: ePortfolios Methods in Chinese Context.- eCSM: Semantic Classification Model for Educational Repositories.- Distance Geographic Learning Based on Collaborative Virtual Environment.- A Distance Learning System for Robotics.- Personalized Recommendation Service System in E-Learning Using Web Intelligence.- Mobile Peer-to-Peer Technology Used in Mobile Education Field.- A Model of Facial Expression for 3D Avatar.- Investigation on E-Learning Adoption Intention Among Chinese Undergraduates Via Innovation Adoption Theory.- E-Learning Assistant System Based on Virtual Human Interaction Technology.- Research on Speech Emotion Recognition System in E-Learning.- A General-Purpose Mobile Framework for Situated Learning Services on PDA.- Construction of Virtual Learning Environments of Lushan Mountain.- A Collaborative Teaching Approach Using Integrated Electronic Environments for Information Security.- Research on Advanced Distributed Learning by Using SCORM.- Research on Affective State Recognition in E-Learning System by Using Neural Network.- One Learning and Teaching Tool for Preliminary Virtual Instrument Course.- Research on Personalized Community E-Learning Recommendation Service System by Using Adaptive Filtering Algorithm.- Research on Personalized E-Learning System Using Fuzzy Set Based Clustering Algorithm.- Building a Fuzzy Ontology of Edutainment Using OWL.- A Modeling and Assessing Method Based on Bayesian Networks.- Research on Affective Computing Model in E-Learning System.- Learning Assessment Model in Web-Learning Based on Rough Set.- Computational Sciences Learning Project for Pre-university Students.- A Study on Fast Preparation of Electron Microscope Biological Specimens.- A New Approach to Outlier Detection.- High-Dimensional Clustering Method for High Performance Data Mining.- Clustering Streaming Time Series Using CBC.- Support Vector Machine Detection of Peer-to-Peer Traffic in High-Performance Routers with Packet Sampling: Nonlinear Kernel Approach.- An Algorithm for Generating Classification Rules Based on Extended Function Dependency.- A Problem Oriented Approach to Data Mining in Distributed Spatio-temporal Database.- Data Set Homeomorphism Transformation Based Meta-clustering.- A Leave-One-Out Bound for ??Support Vector Regression.- A New Multi-class SVM Algorithm Based on One-Class SVM.- Pushing Frequency Constraint to Utility Mining Model.- Feature Selection for VIP E-Mail Accounts Analysis.- A Distributed Data Mining System for a Novel Ubiquitous Healthcare Framework.- A Framework for Data Structure-Guided Extraction of XML Association Rules.- Online Burst Detection Over High Speed Short Text Streams.- Parallel Computing of Kernel Density Estimates with MPI.- Quantization Error and Accuracy-Performance Tradeoffs for Embedded Data Mining Workloads.- Adaptive Mining the Approximate Skyline over Data Stream.- Generating Value from Textual Discovery.- A Flexible Image Retrieval Framework.- Privacy Preserving Data Mining Research: Current Status and Key Issues.- Combining Classifiers for Web Violent Content Detection and Filtering.- Using WordNet to Disambiguate Word Senses for Text Classification.- Construction of Ontology-Based Software Repositories by Text Mining.- Estimating the Change of Web Pages.- Concept Level Web Search Via Semantic Clustering.- An Efficient XML Index Structure with Bottom-Up Query Processing.- Similarity Search Algorithm for Efficient Sub-trajectory Matching in Moving Databases.- Using Intrinsic Object Attributes for Incremental Content Based Image Retrieval with Histograms.- A Novel Method Providing Multimedia Contents According to Preference Clones in Mobile Environment.- Belief Combination for Uncertainty Reduction in Microarray Gene Expression Pattern Analysis.- Application of Classification Methods to Individual Disability Income Insurance Fraud Detection.- A Bayesian Multilevel Modeling Approach for Data Query in Wireless Sensor Networks.- A Watermarking Method with a New SS Technique.- epsilon-Support Vector and Large-Scale Data Mining Problems.- Unsupervised and Semi-supervised Lagrangian Support Vector Machines.- A Security Specification Library with a Schemaless Database.- Content-Based Image Retrieval Using Shifted Histogram.- Image Segmentation by Nonparametric Color Clustering.- Similarity Measurement of XML Documents Based on Structure and Contents.- A Combined Web Mining Model and Its Application in Crisis Management.- A GM-Based Profitable Duration Prediction Model for Chinese Crude Oil Main Production District.- A Hybrid ARCH-M and BP Neural Network Model For GSCI Futures Price Forecasting.- Oil Price Forecasting with an EMD-Based Multiscale Neural Network Learning Paradigm.- Crude Oil Price Prediction Based On Multi-scale Decomposition.- An Improved CAViaR Model for Oil Price Risk.- The Portfolio Selection Model of Oil/Gas Projects Based on Real Option Theory.- Fuzzy Real Option Analysis for IT Investment in Nuclear Power Station.- A Variable Precision Fuzzy Rough Group Decision-making Model for IT Outsourcing Risk Evaluation in Nuclear Power Industry.-A New Hybrid Approach for Analysis of Factors Affecting Crude Oil Price.- Investor Sentiment and Return Predictability in Chinese Fuel Oil Futures Markets.- Energy, Economy, Population, and Climate’s Influences on Environment in Anhui Province, China.- Optimization Models of Pricing Hydro-thermal Trade Based on Energy Economics.- Energy Efficiency and Productivity of China: Compared with Other Countries.- An Analysis About Market Efficiency in International Petroleum Markets: Evidence from Three Oil Commodities.- Model Integrating Fleet Design and Ship Routing Problems for Coal Shipping.- Relative Entropy Method for Regional Allocation of Water Pollution Loading.- Using DEA and Grey Markovian Model to Measure the Goal Cost of Petroleum Enterprise.- A Novel DC Nodal Pricing Method Based on Linear Programming in Competitive Electricity Market.- Risk Analysis with Information Described in Natural Language.- Risk Assessment Method Based on Business Process-Oriented Asset Evaluation for Information System Security.- Epidemic Alert & Response Framework and Technology Based on Spreading Dynamics Simulation.- Quantitative Risk Analysis and Evaluation in Information Systems: A Case Study.- Ontology-Based Fraud Detection.- The Practical Application of Fuzzy Information Analysis in Flood Forecasting.- A Fuzzy Comprehensive Evaluation Method on Firms’ Credit Sale Risk.- Flood Disaster Risk Analysis for Songhua River Basin Based on Theory of Information Diffusion.- A Novel Situation Awareness Model for Network Systems’ Security.- Parallel Preconditioning Methods with Selective Fill-Ins and Selective Overlapping for Ill-Conditioned Problems in Finite-Element Methods.- An R-Minimum Strategy for Finite Element Modeling of Non-linear Deformation Behaviours of Rate-Dependent Materials.- Nonlinear Analysis on Single Pile by Meshfree Local Petrov-Garlerkin Method (MLPG).- Stabilized Procedures for Finite Element Analysis in Saturated Soils Under Cyclic Loading.- Numerical Study on theEffect of Grouting on Long-Term Settlement of Tunnels in Clay.- Large Scale Three-Dimensional Boundary Element Simulation of Subduction.- An Homogenization-Based Nonlocal Damage Model for Brittle Materials and Applications.- An Elastoplastic Hydro-mechanical Model for Unsaturated Soils.- An Elastoplastic Model Considering Sand Crushing.- Modeling of Thermo-Mechanical Behavior of Saturated Clays.- Analytical and Numerical Investigation of Fracture Dominated Thermo-Fluid Flow in Geothermal Reservoir.- Three-Dimensional Numerical Modeling of a Deep Excavation Adjacent to Shanghai Metro Tunnels.- Analytical Solution to Settlement of Cast-In-Situ Thin-Wall Concrete Pipe Pile Composite Foundation.- Numerical Analysis and Risk Assessment on Face Stability of Large-Diameter Tunnels.- Torsional Pile Subjected to Transient Loading in Viscoelastic Poroelastic Medium.- Reliability Analysis on Vertical Bearing Capacity of Bored Pile Determined by CPT Test.- Can Tsunami Waves in the South China SeaBe Modeled with Linear Theory?.- A Coupled Chemo-Thermo-Hydro-Mechanical Constitutive Model for Porous Media.- DEM in 3D Simulation of Influencing Factors of Deformation Properties and p-y Curves of a Laterally Loaded Pile.- Calculation of Dynamic Pore Pressure in Stone Column Composite Foundation.- Dynamic Responses of an Infinite Beam on a Layered Water-Saturated Poroelastic Foundation Under Moving Loads.