Image Analysis and Biometrics -- Image Filtration and Feature Extraction for Face Recognition -- Visualization of Some Multi-Class Erosion Data Using GDA and Supervised SOM -- Wavelet Transform in Face Recognition -- Content-Based Image Retrieval - A Survey -- Method of Speech Recognition and Speaker Identification using Audio-Visual of Polish Speech and Hidden Markov Models -- Synthesis of Codebooks with Perceptually Monitored Structure for Multiband CELP-Coders -- The Color Information as a Feature for Postage Stamps Recognition -- Iris Shape Evaluation in Face Image with Simple Background -- Experimental Algorithm for Characteristic Points Evaluation in Static Images of Signatures -- Computer Security Systems -- Parallelization of Standard Modes of Operation for Symmetric Key Block Ciphers -- On Differential and Linear Approximation of S-box Functions -- Random Generation of S-Boxes for Block Ciphers -- Problems of Sending Sensitive Information -- Hash Chaining for Authenticated Data Structures Freshness Checking -- Stream Cipher Keys Generation with Low Power Consumption Based on LFSR -- The Quality of Obfuscation and Obfuscation Techniques -- Artificial Intelligence and Applications -- Capability and Functionings: A Fuzzy Way to Measure Interaction between Father and Child -- Remarks on Computer Simulations -- Analysis of E-learning System Dynamics -- Can a Negative Selection Detect an Extremely few Non-self among Enormous Amount of Self Cells? -- An Average Length of Computations of Normalized Probabilistic Algorithms -- A Marine Environment Simulator for Testing Ship Control Systems in Dangerous Situations -- Image Enhancement and Image Half-toning Using Fluid Particles Physics Dynamics -- Tandem Models with Blocking in the Computer Subnetworks Performance Analysis -- Interchangeable Strategies in Games without Side Payments on the Base of Uncertain Information on Resources -- Properties of Morphological Operators Applied to Analysis of ECG Signals -- Input's Significance Evaluation in a Multi Input-Variable System -- Calculating the Fractal Dimension of River Basins, Comparison of Several Methods -- Automatic Management of Tele-Interpretation Knowledge in a Wearable Diagnostic Device -- Evaluation of Clusters Quality in Artificial Immune Clustering System - SArIS -- Convergence Analysis of the Boundary Geometry Identification Obtained by Genetic Algorithms in the PIES.