scholarly journals A METHOD OF SEQUENTIAL SEARCHING OF OCCURANCES IN TEXT WITH THE ACCOUNT OF POSSIBLE COLLISIONS

2017 ◽  
Vol 21 (4) ◽  
pp. 68-74
Author(s):  
I. N. Efremova ◽  
V. V. Efremov ◽  
N. A. Emelianova

One of the fundamental tasks of modern computer information systems is processing of symbol information, the amount of which prevails in the total amount of information. At present, rules-based approach is effectively applied to the tasks of processing symbol information. The paper deals with the peculiarities of text search applying rules-based approach. The main essence of the approach is to find pattern occurrences in the text and possible implementation of substitution (text modification). Meanwhile, when implementing search for occurrences, various kinds of collisions may arise. They should be taken into account to solve the set tasks correctly. For example, algorythms of sequential word matching can run into collisions which involve the possibility of skipping positions of pattern occurrence in a word with some structural peculiarities. The paper presents a method of searching taking into account possible collisions developed by the authors, as well as algorithmic and automatic models of the method. The developed method involves patterm markup and setting a sequence of its viewing in the form of algorithm diagram. Three algorythms (implementation variants) of the method have been developed. Algorithms differ in the possibility to carry out transition to this oк that position of the pattern and the text depending on the result of matching (equality or inequality of the current symbols of the patten and text). An automation model of the method has been developed. The proposed method of sequential matching with the pattern with collisions elimination increases the effectiveness of the computer system when implementing search procedures and symbol information processing. The method can be used in the systems of symbol information processing.

1979 ◽  
Vol 18 (04) ◽  
pp. 214-222
Author(s):  
K. Sauter

The problems encountered in achieving data security within computer-supported information systems increased with the development of modern computer systems. The threats are manifold and have to be met by an appropriate set of hardware precautions, organizational procedures and software measures which are the topic of this paper. Design principles and software construction rules are treated first, since the security power of a system is considerably determined by its proper design. A number of software techniques presented may support security mechanisms ranging from user identification and authentication to access control, auditing and threat monitoring. Encryption is a powerful tool for protecting data during physical storage and transmission as well.Since an increasing number of health information systems with information-integrating functions are database-supported, the main issues and terms of database systems and their specific security aspects are summarized in the appendix.


2020 ◽  
Vol 9 (3) ◽  
pp. 33-38
Author(s):  
Iroda Abdullaeva ◽  
◽  
Dilyora Hoshimova ◽  
Hamdam Xomidov ◽  
Maftuna Raxmonova

This article is devoted to the prospects of the development of banking information systems in the Republic of Uzbekistan and highlights issues such as the processing of significant flows of information in the banking information system using advanced information processing tools


1991 ◽  
Vol 20 (2) ◽  
pp. 143-152
Author(s):  
Warren Thompson

Computer education and computer training is becoming more important as technology advances. Human resource specialists will be forced to make crucial decisions that will impact the total organization as more organizations use computer technology. Information is important to the organization. Business executives and managers need to be educated and continuously trained on computer information systems. The benefits from computer education and training outweigh its costs. This is evident by the increasing interest in education and training in business organizations. This article compares and discusses management information systems and marketing information systems and focuses upon the training that is needed for today's managers and executives. It is an attempt to review the major concerns of MKIS and MIS education and training.


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