Workshop on Computational Geometry and Applications (CGA 04).- Geometric Graphs Realization as Coin Graphs.- Disc Covering Problem with Application to Digital Halftoning.- On Local Transformations in Plane Geometric Graphs Embedded on Small Grids.- Reducing the Time Complexity of Minkowski-Sum Based Similarity Calculations by Using Geometric Inequalities.- A Practical Algorithm for Approximating Shortest Weighted Path between a Pair of Points on Polyhedral Surface.- Plane-Sweep Algorithm of O(nlogn) for the Inclusion Hierarchy among Circles.- Shortest Paths for Disc Obstacles.- Improving the Global Continuity of the Natural Neighbor Interpolation.- Combinatories and Triangulations.- Approximations for Two Decomposition-Based Geometric Optimization Problems.- Computing Largest Empty Slabs.- 3D-Color-Structure-Code – A New Non-plainness Island Hierarchy.- Quadratic-Time Linear-Space Algorithms for Generating Orthogonal Polygons with a Given Number of Vertices.- Partitioning Orthogonal Polygons by Extension of All Edges Incident to Reflex Vertices: Lower and Upper Bounds on the Number of Pieces.- On the Time Complexity of Rectangular Covering Problems in the Discrete Plane.- Approximating Smallest Enclosing Balls.- Geometry Applied to Designing Spatial Structures: Joining Two Worlds.- A Robust and Fast Algorithm for Computing Exact and Approximate Shortest Visiting Routes.- Automated Model Generation System Based on Freeform Deformation and Genetic Algorithm.- Speculative Parallelization of a Randomized Incremental Convex Hull Algorithm.- The Employment of Regular Triangulation for Constrained Delaunay Triangulation.- The Anchored Voronoi Diagram.- Implementation of the Voronoi-Delaunay Method for Analysis of Intermolecular Voids.- Approximation of the Boat-Sail Voronoi Diagram and Its Application.- Incremental Adaptive Loop Subdivision.- Reverse Subdivision Multiresolution for Polygonal Silhouette Error Correction.- Cylindrical Approximation of a Neuron from Reconstructed Polyhedron.- Skeletizing 3D-Objects by Projections.- Track on Computational Geometry.- An Efficient Algorithm for Determining 3-D Bi-plane Imaging Geometry.- Error Concealment Method Using Three-Dimensional Motion Estimation.- Confidence Sets for the Aumann Mean of a Random Closed Set.- An Algorithm of Mapping Additional Scalar Value in 2D Vector Field Visualization.- Network Probabilistic Connectivity: Exact Calculation with Use of Chains.- Curvature Dependent Polygonization by the Edge Spinning.- SOM: A Novel Model for Defining Topological Line-Region Relations.- Track on Adaptive Algorithms.- On Automatic Global Error Control in Multistep Methods with Polynomial Interpolation of Numerical Solution.- Approximation Algorithms for k-Source Bottleneck Routing Cost Spanning Tree Problems.- Efficient Sequential and Parallel Algorithms for Popularity Computation on the World Wide Web with Applications against Spamming.- Decentralized Inter-agent Message Forwarding Protocols for Mobile Agent Systems.- Optimization of Usability on an Authentication System Built from Voice and Neural Networks.- An Efficient Simple Cooling Schedule for Simulated Annealing.- A Problem-Specific Convergence Bound for Simulated Annealing-Based Local Search.- Comparison and Selection of Exact and Heuristic Algorithms.- Adaptive Texture Recognition in Image Sequences with Prediction through Features Interpolation.- Fuzzy Matching of User Profiles for a Banner Engine.- Track on Biology, Biochemistry, Bioinformatics.- Genome Database Integration.- Protein Structure Prediction with Stochastic Optimization Methods: Folding and Misfolding the Villin Headpiece.- High Throughput in-silico Screening against Flexible Protein Receptors.- A Sequence-Focused Parallelisation of EMBOSS on a Cluster of Workstations.- A Parallel Solution to Reverse Engineering Genetic Networks.- Deformable Templates for Recognizing the Shape of the Zebra Fish Egg Cell.- Multiple Parameterisation of Human Immune Response in HIV: Many-Cell Models.- Track on Cluster Computing.- Semantic Completeness in Sub-ontology Extraction Using Distributed Methods.- Distributed Mutual Exclusion Algorithms on a Ring of Clusters.- A Cluster Based Hierarchical Routing Protocol for Mobile Networks.- Distributed Optimization of Fiber Optic Network Layout Using MATLAB.- Cache Conscious Dynamic Transaction Routing in a Shared Disks Cluster.- A Personalized Recommendation Agent System for E-mail Document Classification.- An Adaptive Prefetching Method for Web Caches.- Track on Computational Medicine.- Image Processing and Retinopathy: A Novel Approach to Computer Driven Tracing of Vessel Network.- Automatic Extension of Korean Predicate-Based Sub-categorization Dictionary from Sense Tagged Corpora.- Information Fusion for Probabilistic Reasoning and Its Application to the Medical Decision Support Systems.- Robust Contrast Enhancement for Microcalcification in Mammography.- Track on Computational Methods.- Exact and Approximate Algorithms for Two–Criteria Topological Design Problem of WAN with Budget and Delay Constraints.- Data Management with Load Balancing in Distributed Computing.- High Performance Modeling with Quantized System.- New Digit-Serial Systolic Arrays for Power-Sum and Division Operation in GF(2 m ).- Generation of Unordered Binary Trees.- A New Systolic Array for Least Significant Digit First Multiplication in GF(2 m ).- Asymptotic Error Estimate of Iterative Newton-Type Methods and Its Practical Application.- Numerical Solution of Linear High-Index DAEs.- Fast Fourier Transform for Option Pricing: Improved Mathematical Modeling and Design of Efficient Parallel Algorithm.- Global Concurrency Control Using Message Ordering of Group Communication in Multidatabase Systems.- Applications of Fuzzy Data Mining Methods for Intrusion Detection Systems.- Pseudo-Random Binary Sequences Synchronizer Based on Neural Networks.- Calculation of the Square Matrix Determinant: Computational Aspects and Alternative Algorithms.- Differential Algebraic Method for Aberration Analysis of Electron Optical Systems.- Optimizing Symmetric FFTs with Prime Edge-Length.- A Spectral Technique to Solve the Chromatic Number Problem in Circulant Graphs.- A Method to Establish the Cooling Scheme in Simulated Annealing Like Algorithms.- Packing: Scheduling, Embedding, and Approximating Metrics.- Track on Computational Science Education.- Design Patterns in Scientific Software.- Task Modeling in Computer Supported Collaborative Learning Environments to Adapt to Mobile Computing.- Computational Science and Engineering (CSE) Education: Faculty and Student Perspectives.- Computational Math, Science, and Technology: A New Pedagogical Approach to Math and Science Education.- Track on Computer Modeling and Simulation.- Resonant Tunneling Heterostructure Devices – Dependencies on Thickness and Number of Quantum Wells.- Teletraffic Generation of Self-Similar Processes with Arbitrary Marginal Distributions for Simulation: Analysis of Hurst Parameters.- Design, Analysis, and Optimization of LCD Backlight Unit Using Ray Tracing Simulation.- An Efficient Parameter Estimation Technique for a Solute Transport Equation in Porous Media.- HierGen: A Computer Tool for the Generation of Activity-on-the-Node Hierarchical Project Networks.- Macroscopic Treatment to Polymorphic E-mail Based Viruses.- Making Discrete Games.- Speech Driven Facial Animation Using Chinese Mandarin Pronunciation Rules.- Autonomic Protection System Using Adaptive Security Policy.- A Novel Method to Support User’s Consent in Usage Control for Stable Trust in E-business.- Track on Financial and Economical Modeling.- No Trade under Rational Expectations in Economy.- A New Approach for Numerical Identification of Optimal Exercise Curve.- Forecasting the Volatility of Stock Index Returns: A Stochastic Neural Network Approach.- Track on Mobile Computing Systems.- A New IP Paging Protocol for Hierarchical Mobile IPv6.- Security Enhanced WTLS Handshake Protocol.- An Adaptive Security Model for Heterogeneous Networks Using MAUT and Simple Heuristics.- A New Mechanism for SIP over Mobile IPv6.- A Study for Performance Improvement of Smooth Handoff Using Mobility Management for Mobile IP.- A Fault-Tolerant Protocol for Mobile Agent.- Performance Analysis of Multimedia Data Transmission with PDA over an Infrastructure Network.- A New Synchronization Protocol for Authentication in Wireless LAN Environment.- A Study on Secure and Efficient Sensor Network Management Scheme Using PTD.