NORMALIZATION OF EMPIRICAL CONTEXT IN ONTOLOGICAL DATA ANALYSIS

2021 ◽  
Vol 3 (3) ◽  
pp. 45-52
Author(s):  
Valentina Andreevna Semenova ◽  
Sergei Viktorovich Smirnov
Author(s):  
Валентина Андреевна Семенова

Областью исследования является онтологический анализ данных, заключающийся в построении формальных онтологий на основе эмпирических данных о слабоструктурированных предметных областях. Предметом исследования является нормализация эмпирического V -контекста - нестрогого соответствия «объекты-свойства» - при ограничениях существования свойств. Задача исследования состоит в разработке численного метода, который реализует эвристический подход к нормализации эмпирических контекстов. В работе используются методы теории множеств и бинарных отношений, модели и методы анализа формальных понятий, а также существующая методология применения ограничений существования свойств для построения формальных онтологий. Отличие и новизна предложенного метода заключаются в более эффективной реализации эвристического подхода за счёт представления системы измеряемых свойств - множества фиксируемых у объектов исследуемой предметной области свойств с заданными на нём ограничениями существования - в виде совокупности субструктур, однородных по виду экзистенциального сопряжения свойств-членов. The research field is ontological data analysis, which consists in the construction of formal ontologies based on empirical data on semi-structured subject domains. The subject of the research is the normalization of the empirical V -context - a non-strict correspondence "objects-properties" - with properties existence constraints. The research objective is to develop a numerical method that implements a heuristic approach to the normalization of empirical contexts. The work uses the methods of the theory of sets and binary relations, models and methods of formal concept analysis, as well as the existing methodology for applying the properties existence constraints to construct formal ontologies. The difference and novelty of the proposed method consists in the more efficient implementation of the heuristic approach by representing the system of measured properties - the set of properties fixed in the objects of the studied subject domain with the existence constraints on it - as a set of substructures that are homogeneous in the form of existential relation of member properties.


Author(s):  
P. Ingram

It is well established that unique physiological information can be obtained by rapidly freezing cells in various functional states and analyzing the cell element content and distribution by electron probe x-ray microanalysis. (The other techniques of microanalysis that are amenable to imaging, such as electron energy loss spectroscopy, secondary ion mass spectroscopy, particle induced x-ray emission etc., are not addressed in this tutorial.) However, the usual processes of data acquisition are labor intensive and lengthy, requiring that x-ray counts be collected from individually selected regions of each cell in question and that data analysis be performed subsequent to data collection. A judicious combination of quantitative elemental maps and static raster probes adds not only an additional overall perception of what is occurring during a particular biological manipulation or event, but substantially increases data productivity. Recent advances in microcomputer instrumentation and software have made readily feasible the acquisition and processing of digital quantitative x-ray maps of one to several cells.


2020 ◽  
Vol 5 (1) ◽  
pp. 290-303
Author(s):  
P. Charlie Buckley ◽  
Kimberly A. Murza ◽  
Tami Cassel

Purpose The purpose of this study was to explore the perceptions of special education practitioners (i.e., speech-language pathologists, special educators, para-educators, and other related service providers) on their role as communication partners after participation in the Social Communication and Engagement Triad (Buckley et al., 2015 ) yearlong professional learning program. Method A qualitative approach using interviews and purposeful sampling was used. A total of 22 participants who completed participation in either Year 1 or Year 2 of the program were interviewed. Participants were speech-language pathologists, special educators, para-educators, and other related service providers. Using a grounded theory approach (Glaser & Strauss, 1967 ) to data analysis, open, axial, and selective coding procedures were followed. Results Three themes emerged from the data analysis and included engagement as the goal, role as a communication partner, and importance of collaboration. Conclusions Findings supported the notion that educators see the value of an integrative approach to service delivery, supporting students' social communication and engagement across the school day but also recognizing the challenges they face in making this a reality.


1989 ◽  
Vol 54 (3) ◽  
pp. 403-421 ◽  
Author(s):  
Beth M. Dalton ◽  
Jan L. Bedrosian

The communicative performance of 4 preoperational-level adolescents, using limited speech, gestures, and communication board techniques, was examined in a two-part investigation. In Part 1, each subject participated in an academic interaction with a teacher in a therapy room. Data were transcribed and coded for communication mode, function, and role. Two subjects were found to predominantly use the speech mode, while the remaining 2 predominantly used board and one other mode. The majority of productions consisted of responses to requests, and the initiator role was infrequently occupied. These findings were similar to those reported in previous investigations conducted in classroom settings. In Part 2, another examination of the communicative performance of these subjects was conducted in spontaneous interactions involving speaking and nonspeaking peers in a therapy room. Using the same data analysis procedures, gesture and speech modes predominated for 3 of the subjects in the nonspeaking peer interactions. The remaining subject exhibited minimal interaction. No consistent pattern of mode usage was exhibited across the speaking peer interactions. In the nonspeaking peer interactions, requests predominated. In contrast, a variety of communication functions was exhibited in the speaking peer interactions. Both the initiator and the maintainer roles were occupied in the majority of interactions. Pertinent variables and clinical implications are discussed.


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