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M.S.Shibut, N.A.Yarmosh METHODS OF ADAPTING IN THE INSTRUMENTAL EXPERT CAL SYSTEM



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M.S.Shibut, N.A.Yarmosh METHODS OF ADAPTING IN THE INSTRUMENTAL EXPERT CAL SYSTEM

The methods of adapting of computer learning course to the user - teacher or learner, employed in the instrumental expert Computer-Aided Learning (CAL) systems AOSProject and AOSControl are proposed. The purposes of learning and current state of learning process are defined as sets of studied concepts - descriptors and their values which describe, accordingly, demanded and current level of concepts digestion. The same type sets ("descriptor - values") characterize components of the hypertext. For reflection in the hypertext of the information about the order of concepts studying a condition of presentation can be preset for every component, pointing what concepts and with what depth learner should acquire to the moment of studying the given component. The conditions of presentation of checking components in the hypertext of the learning system and values of levels for basic concepts this components can be various depending on a correctness of the learner answer. The levels of the concepts fixed in a model of the learning process specify learner's levels of digestion of the given concepts. If these levels are lower than defined values, there is no sense to present the checking components requiring more deep knowledge of the given concepts.

The essence of an offered way of representation of the learning information consists in combination of the hypertext technology realising sequential presentation of pages of learning course and structuring it accordingly to criteria of semantic closeness and the technology of expert systems, realising endorder or postorder traversal in the problem space to determine components of the hypertext satisfied the presentation conditions. Usage of results of the hypertext review as states of the learning process and rules of transitions between these states, allows to receive the system of planning of the navigation paths adapted to the learner. The task of creation of a training technique in the system will demand formalising and input in a knowledge base of rules, which one are practiced by the teacher in his work.


Aslanov Musurza Mustafa DECISION-MAKING UPON DATA PROCESSING OF REMOTE SOUNDING

Human factor is always taken into account in setting up automatic remote measuring data processing systems. Available two interrelated reasons of man's unique role in such systems. The fist consists of its ability to effectively obtain and keep the particulars of the whole picture, i.e. not only the particulars of absolute majority of the data of remote sounding, but also the particulars of appropriate reference material obtained in various formats and different bearers. The second reason is its unique ability to make selection of data. Essentially using previous experienc and knowledge to take any decision. Therefore, it is necessary to solve the tasks of effective interactions between the man and machines when projecting data processing systems of remote sounding. The referenced paper offers the methods to present the results of the remote sounding-related tasks in order to facilitate decision-making process for the system's analyst. For this purpose introduced a subsystem to make the estimation of the task of remote sounding.

It is universally asknowledged that remote sounding data processing, from registration moment till obtaining specific results, is divided into a number of separate tasks (for example, calibration, geometrical correction, restoration of reflections,etc.). Every task is resolved in this or another method, way and algorithm. Solution quality of one task obviously or non-obviously makes influence upon solution quality of other tasks (for example, sublocation of signs, where classes are most differently reflected on classification results). Obviously it is difficult enough for analyst to take any decision without any approach to estimating to selection of methods,algorithms and results.In this regard, introduced task solution quality-related estimating subsystem where every task is marked in appropriate methods and inserted into mark table , the analysis of which promotes the analyst of the system to take any decision on further data processing..

Therefore the analyst shoould efficiently select the chains of solved tasks in the suggested task menu, and after solution of each task of the subsystem to insert marks into the table of relevant mark, the examined table and throw light upon description on each stage that analyst could have any advantage also visually estimate the processing results, also provided for any opportunity graphically to reflect processing results.



References

1. Bates R., Mask-Donnel M. Restoration and reconstruction of reflections, M.: MIR, 1989,p.333




Mayilov R.A., Safarov R.S. ON DECISION MAKING AT TRANSMISSION INFORMATION ON CABLES OF CONNECTION WITH VIOLATED HOMOGENEITY

Quality and efficiency of the information transmitted on the cables of connection in many depends on the metrological feature of the cables. Known that when breaking homogeneity of cables, part of the transmitted information is subjected to a drain and distortion because of the damages. Breach of the homogeneity is characterize by the reflecting factor, which is defined by changing a wave resistance of the cable. Calculation of the changing a wave resistance from its nominal value under the known reflecting factor is presented possible.

The determination of the place and the nature of the breaking homogeneity and reflecting factor in the cables of connection is conduct by means of the known pulse method, which essence is conclude in that, that to the investigated cable line are send exploration pulses, these pulses reflect from the place of the breaking spottiness and return back, herewith on polarities of the reflected pulses is defined nature of damaging and upon their delay a place of breaking a spottiness. Degree of the breaking spottiness corresponds to the value of the reflecting factor, which changes in the interval [-1; 1], where “-1” points to the presence a short circuit in the line, but “+1” breakaway. Under zero value of the reflecting factor a cable functions orderly.

Under appear spottinesses, when value of the reflecting factor depending on the partial short circuit or breakaway bases in the interval (-1; 0) or (0; 1), own fading of the line is change by its working fading, determination of the working fading is possible in the event of the calculation changed wave resistance.

Thus, when breaking homogeneity of the cable line at measurements of the reflecting factor is the calculation of the wave resistance is presented possible and on the base of this value is come to a conclusion: to reject the information transmitted on this line, or under the allowing circumstances to correct the information transmitted on the cable line.



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