Book chapter
Carassius: A Simple Process Model Editor
In book
Concepts of the theory of algorithmic languages and methods of broadcasting and also processing of data and their organization are considered. Statement of material is followed by practical examples. The grant is intended for students of the higher educational institutions studying in the Applied Mathematics and Applied Mathematics and Informatics directions. Contains the subjects studied in disciplines "The theory of computing processes and structures", "The theory of algorithmic languages", "Mathematical fundamentals of informatics". It can be used as lecture material, on a practical training, when performing course and theses and also as means of self-education
In this paper we present some preliminary results for text corpus visualization by means of so-called reference graphs. The nodes of this graph stand for key words or phrases extracted from the texts and the edges represent the reference relation. The node A refers to the node B if the corresponding key word / phrase B is more likely to co-occur with key word / phrase A than to occur on its own. Since reference graphs are directed graphs, we are able to use graphtheoretic algorithms for further analysis of the text corpus. The visualization technique is tested on our own Web-based corpus of Russian-language newspapers.
This paper describes our approach to document search based on the ontological resources and graph models. The approach is applicable in local networks and local computers. It can be useful for ontology engineering specialists or search specialists.
The article describes the original software tools for an experimental estimation of computational complexity of software solutions for problems on graph models of systems. The classes of the solved problems and the tools for analysis of results are listed. The method based on selection of graph models by their structural complexity is introduced.
The article considers the issues of technical product life cycle management in the field of spare parts delivery organization and management within the framework of after-sales service. It provides an examination of a Petri net model, describing the cause-effect relations between events that are linked to delivery planning and management, based on a probabilistic analytical model for after-sales service of technical products and a program-based risk analysis system based on technical and economic criteria. The result of a given model’s performance is planning of an acceptable balance between the cost and quality of products and their current maintenance, which includes detection and minimization of financial risks. An example that illustrates automated planning of spare parts delivery is given. Dynamics of operated technical products’ quantity variation is represented in the integrated graphic type, providing an opportunity to predict an average factor of technical product’s serviceability, determined both by a number of serviceable technical products in a warehouse of the customer and productivity of repair agencies. The earned value method application is proved to be an effective tool for risk analysis of schedule variance in the field of spare parts delivery. Monitoring of the earned value of finances permits to forecast not only the probability of successful completion of spare parts delivery, but also the risks of both cost and schedule variance. An example of automated risk analysis is provided. Estimated coincidence degree of actual cost and planned value is calculated by means of the effectiveness index, which is used to analyze the quality of customer’s subdivisions performance and to correct further functioning. For a selected year, the effectiveness index can be defined and optimized for the predetermined serviceability factor, assigned for every customer during the process of automated planning of spare parts delivery. The approach presented in the article can be considered quite universal, which predetermines an opportunity to apply it in order to provide solutions for product and service life cycle management problems in various organizational technical and economic systems.
This monograph is the collection of the selected papers from Gdańsk EuroSymposium 2015 on SAND – Systems Analysis and Design. SAND is the classical field of research and education in the area of management information systems (MIS) or, as it is called more frequently in Europe – Business Informatics, almost from its origins. The objective of the EuroSymposium on Systems Analysis and Design is to promote and develop high quality research on all issues related to SAND. It provides a forum forSANDresearchers and practitioners in Europe and beyond to interact, collaborate, and develop their field. Therefore, there were three organizers of the 8th EuroSymposium on Systems Analysis and Design: – SIGSAND – Special Interest Group on Systems Analysis and Design of AIS, – PLAIS – Polish Chapter of AIS, – Department of Business Informatics of University of Gdansk, Poland.
One of the key advances in genome assembly that has led to a significant improvement in contig lengths has been improved algorithms for utilization of paired reads (mate-pairs). While in most assemblers, mate-pair information is used in a post-processing step, the recently proposed Paired de Bruijn Graph (PDBG) approach incorporates the mate-pair information directly in the assembly graph structure. However, the PDBG approach faces difficulties when the variation in the insert sizes is high. To address this problem, we first transform mate-pairs into edge-pair histograms that allow one to better estimate the distance between edges in the assembly graph that represent regions linked by multiple mate-pairs. Further, we combine the ideas of mate-pair transformation and PDBGs to construct new data structures for genome assembly: pathsets and pathset graphs.
Graph Structures for Knowledge Representation and Reasoning 2014. Workshop on IJCAI-2014.