Acta Informatica Pragensia, 2012 (vol. 1), issue 1

Will we think in programming languages?

Jiří Fišer

Acta Informatica Pragensia 2012, 1(1), 1-21 | DOI: 10.18267/j.aip.15777  

Modern science commonly uses computer modelling. Thousands of scientific model are daily transformed to computers programs and tested. The transformation must overcome the gap between abstract human formal notation and low level semantics of contemporary programming languages. The simultaneous knowledge of specific scientific models and programming languages is an unpleasant necessity for a significant proportion of scientists and practitioners (engineers, economist, etc.). But a solution exists - accommodation of programming languages to mental models of their users. The article discuss one partial solution - implementation of domain specific languages...

Inteligentný systém na analýzu hustoty dopravnej premávky z videozáznamu

The Intelligent System for the Traffic Density Analysis

Martin Paralič

Acta Informatica Pragensia 2012, 1(1), 22-31 | DOI: 10.18267/j.aip.22878  

This paper presents the novel method for video-based traffic monitoring system, with a moving object detection and state machine for the traffic density measurement. Proposed method is robust to a different lightning conditions and tremors caused by the wind. The Gaussian pyramids are used for the elimination of such effects. The multiple road lines and crossroads are monitored by the intelligent state machine in a both directions.

Odhadování pracnosti IT projektů

Estimating the laboriousness of IT projects

Miroslav Král

Acta Informatica Pragensia 2012, 1(1), 32-40 | DOI: 10.18267/j.aip.35387  

A large number of different methods in the field of estimation of IS/IT projects have been developed in past years. Those methods should be used with regard to several factors. The choice and the application of an estimation method should take into consideration the current phase of each project and the wide variety of external factors, whose composition and intensity are very diverse and individual. The accuracy of the estimation considerably influences the success of the whole project. This article aims to analyse the principles, which are used by methods for effort estimation, and finding strong and weak aspects of these methods.

Standardy projektového řízení

Standards for Project Management

Petr Řeháček

Acta Informatica Pragensia 2012, 1(1), 41-49 | DOI: 10.18267/j.aip.44355  

Standard ISO 21500 provides guidance on the management of the project from September 1, 2012 and can be used for each type of project, regardless of complexity, size or duration. The aim of this paper is to compare the process of international standard with PMBoK^® Guide from PMI, which was deliberately chosen because it uses a procedural conception of the project as opposed to ICB standard from IPMA using mainly focus on individual elements of the project. This article shows the differences and comparisons between phases, areas and processes of these two standards, ie. ISO 21500 and PMBoK^® Guide.

Intrusion Detection Architecture Utilizing Graphics Processors

Liberios Vokorokos, Anton Baláž, Branislav Madoš

Acta Informatica Pragensia 2012, 1(1), 50-59 | DOI: 10.18267/j.aip.58962  

With the thriving technology and the great increase in the usage of computer networks, the risk of having these network to be under attacks have been increased. Number of techniques have been created and designed to help in detecting and/or preventing such attacks. One common technique is the use of Intrusion Detection Systems (IDS). Today, number of open sources and commercial IDS are available to match enterprises requirements. However, the performance of these systems is still the main concern. This paper examines perceptions of intrusion detection architecture implementation, resulting from the use of graphics processor. It discusses recent research...

Dvanáct úvah o technice v podání José Ortegy y Gasseta

Twelve reflections on technics according to Jose Ortega y Gasset

Zdeněk Smutný

Acta Informatica Pragensia 2012, 1(1), 60-65 | DOI: 10.18267/j.aip.63609  

This article is review of book of J. O. Gasset: "Reflection on technics", which was published by Oikoymenh in 2011. The book is a set of twelve lectures from 1933, preface from 1939 and introductory chapter "What is technics?" found in Gasset's unreleased estate. The reader is also offered to consider parallel reflection toward to the information society.

Podívejme se na modelování znalostí podle Brožové a Houšky

Have a look into Knowledge Modelling by Brožová and Houška

Stanislava Mildeová

Acta Informatica Pragensia 2012, 1(1), 66-68 | DOI: 10.18267/j.aip.72536  

A lot of theoretical approaches to knowledge and knowledge management exist. Knowledge science is still an open question in theory and practice. In the following notes we will be looking at 'knowledge modelling'. The paper is a review of a book 'Knowledge Modelling', written by Brožová and Houška, published by the Professional Publishing in 2011. The book produces insights and tools that would be of great value to knowledge workers, and also to everybody who is interested in working with knowledge.

Ulož svůj vášeň! Několik poznámek k historii ICT

Save your passions! A few notes on the history of ICT

Richard Bébr

Acta Informatica Pragensia 2012, 1(1), 69-75 | DOI: 10.18267/j.aip.83704  

In 2005, George Washington University, claimed: After 5 years computer translators will replace foreign language teachers and interpreters. In 2012 - two years that claim should pay! - I entered into the computer known English sentence "Save our souls" and the computer translated it exactly as you read the title [in Czech]. This leads me to think, how is it with progress of ICT. This paper describes various examples that incredibly characterized progress of ICT.