Вероятностно-временные характеристики обработки клиентских заявок в личных кабинетах веб-сервера
Developed and studied stochastic models of processing client requests for the provision of public services. The approach for the analytical calculation of the probability-time characteristics of the processing of client requests in personal accounts on the web server in the case of large queues
In this paper the authors describe how they have developed and introduced into the university curriculum the course “Smart City – information infrastructure and management”, aimed to study values and principles of decision-making and technologies of creating Smart City with strong support of leading IBM IT-solutions.
The paper describes the development of a portal about development and use of tools based on the (meta) modeling (using DSM, DSL, etc.). The architecture of a portal, information retrieval subsystem and document management are described.
The purpose of the portal is the creation of "selfdeveloping" resource, which provides intelligent search and automatic processing of the results (documents and sources), easy navigation on the found resources. Implementation is based on the ontologies approach.
The main feature of suggested methods is an integrated approach to development. The approach bases on a multi-level ontology repository. The portal allows searching and analyzing information, creating and researching model, publishing research results. Software gives an opportunity of a flexible customizing. The main topic of this paper is an intelligent information search means based on semantic indexation, automatic document classification, tracking of semantic links between documents and automatic summarization.
The urgency and purpose. Low level of financial capability is an actual problem of modern society. This problem directly effects on economic and social growth. Russian and foreign companies confirm that Russians have a low level of financial capability. Based on the Standard&Poors research findings was identified that only 38% of Russians have a high level of financial capability. The evaluation of real life issues in Russia and foreign countries shows that raising of financial capability level should have a complex approach. Within the frame of current research the site ProFin was developed. The goal of site is to increase people's financial capability. The site was tested on the target group and on potential group of users. Based on the test results there were defined pros and cons of the site and some recommendations for improving site were declared too. The purpose of this study – the development of tools to improve the financial literacy.
Methods. The research was designed website "ProFin" to improve the financial literacy of the population. Website Modeling was performed on the Wix platform - software for creating and designing websites.
Results. Website "ProFin" includes all the main sections of the site: home page, news and contacts. Unique sections "ProFin" Web Site are: analytical unit "Comparison of banks," which allows users to compare the financial performance of commercial banks. The section "Helpful Hints" provides important useful information to existing or future users of banking products and services. The website also posted an interactive calendar of events, allowing website users to know about the events and seminars on financial literacy in the lives’ region.
Conclusions. This tool has been tested on the target groups and potential users of the portal. According to the test results were identified advantages and disadvantages of the portal, as well as recommendations on further development of the website.
A model for organizing cargo transportation between two node stations connected by a railway line which contains a certain number of intermediate stations is considered. The movement of cargo is in one direction. Such a situation may occur, for example, if one of the node stations is located in a region which produce raw material for manufacturing industry located in another region, and there is another node station. The organization of freight traﬃc is performed by means of a number of technologies. These technologies determine the rules for taking on cargo at the initial node station, the rules of interaction between neighboring stations, as well as the rule of distribution of cargo to the ﬁnal node stations. The process of cargo transportation is followed by the set rule of control. For such a model, one must determine possible modes of cargo transportation and describe their properties. This model is described by a ﬁnite-dimensional system of diﬀerential equations with nonlocal linear restrictions. The class of the solution satisfying nonlocal linear restrictions is extremely narrow. It results in the need for the “correct” extension of solutions of a system of diﬀerential equations to a class of quasi-solutions having the distinctive feature of gaps in a countable number of points. It was possible numerically using the Runge–Kutta method of the fourth order to build these quasi-solutions and determine their rate of growth. Let us note that in the technical plan the main complexity consisted in obtaining quasi-solutions satisfying the nonlocal linear restrictions. Furthermore, we investigated the dependence of quasi-solutions and, in particular, sizes of gaps (jumps) of solutions on a number of parameters of the model characterizing a rule of control, technologies for transportation of cargo and intensity of giving of cargo on a node station.
Event logs collected by modern information and technical systems usually contain enough data for automated process models discovery. A variety of algorithms was developed for process models discovery, conformance checking, log to model alignment, comparison of process models, etc., nevertheless a quick analysis of ad-hoc selected parts of a journal still have not get a full-fledged implementation. This paper describes an ROLAP-based method of multidimensional event logs storage for process mining. The result of the analysis of the journal is visualized as directed graph representing the union of all possible event sequences, ranked by their occurrence probability. Our implementation allows the analyst to discover process models for sublogs defined by ad-hoc selection of criteria and value of occurrence probability
The geographic information system (GIS) is based on the first and only Russian Imperial Census of 1897 and the First All-Union Census of the Soviet Union of 1926. The GIS features vector data (shapefiles) of allprovinces of the two states. For the 1897 census, there is information about linguistic, religious, and social estate groups. The part based on the 1926 census features nationality. Both shapefiles include information on gender, rural and urban population. The GIS allows for producing any necessary maps for individual studies of the period which require the administrative boundaries and demographic information.
Existing approaches suggest that IT strategy should be a reflection of business strategy. However, actually organisations do not often follow business strategy even if it is formally declared. In these conditions, IT strategy can be viewed not as a plan, but as an organisational shared view on the role of information systems. This approach generally reflects only a top-down perspective of IT strategy. So, it can be supplemented by a strategic behaviour pattern (i.e., more or less standard response to a changes that is formed as result of previous experience) to implement bottom-up approach. Two components that can help to establish effective reaction regarding new initiatives in IT are proposed here: model of IT-related decision making, and efficiency measurement metric to estimate maturity of business processes and appropriate IT. Usage of proposed tools is demonstrated in practical cases.