• KIPS Transactions on Software and Data Engineering
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• v.2 no.4
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• pp.239-250
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• 2013

Context-aware mobile computing has become the primary approach to realize automatic, autonomous, and user-centric computing in the context of largely increasing the amount of mobile devices used that embed available sensors. However, designing an inference engine nonetheless requires the tasks of analyzing contexts, situations that can be inferred, etc. Moreover, a mobile device has limited resources and limited computation capability, which results in recognizing the common sense of its unsuitable environment for processing inference. Hence, we propose context-situation reasoning elements and their formal models in this paper, and we verify the formal models' applicability by applying them to an example. Finally, we design and implement an inference engine that realize the context-situation inference elements in computing environment, and we experiment an example by using the proposed inference engine to verify applicability and reusability of the inference engine.

• Proceedings of KHEA Conference
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• 2003.04a
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• pp.1-11
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• 2003

The purpose of this paper is to describe the situation of everyday life of women and men in Germany and gender related aspects. Therefore social demographical data, presented by the Office for European Statistics, Luxembourg and by German statistical data, are used. Based on this data the different roles, responsibilities, and social positions of women and men are interpreted in the context of the idea of mainstreaming gender. In comparison to other European countries, especially to the Scandinavian countries, the situation of women in Germany still has to be improved. It is a prevalent problem for women to arrange family life and working career, because the gender-related role-allocationis still an issue. Women, who are involved in looking after children, are significantly less engaged in business life, as for men caring does not make a difference, whether they are employed or not. In addition to this fact women on average earn less than men, especially for women working in higher positions. To improve the situation of women and men the German government has initiated a 'Gender Mainstreaming Policy' in 2000 and has taken important legal measures which make it possible to reconcile family-life and gainful employment. For Home Economists there is a need to integrate the gender dimension into a household analytical approach.

• Journal of Korean Elementary Science Education
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• v.35 no.3
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• pp.277-287
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• 2016

This study explores how a teacher copes with anomalous situation in primary practical science lesson and what factors affect teacher's strategy to cope with anomalous situations. The method of auto-ethnography was used in order to capture the inner experience of the individual teacher. For this, one of the researchers participated in this study as the teacher participant. Two science lessons that the researcher taught as a teacher were observed by a co-author and video-recorded. However, only one lesson which the teacher experienced the anomalous situation was analyzed. After the lesson, self-interviews were conducted with the co-author. Also the researcher wrote four reflective journals about anomalous situations that she experienced. What has emerged in this study is that anomalous situations were experienced by the teacher while students were doing practical work and while students were presenting their results of practical work. As each anomalous situation was experienced in different contexts, the strategies that the teacher used were different and were affected not only by the personal epistemological belief but also by the socio-cultural context that the teacher was surrounded by. This study has implications to help teachers who have difficulties in coping with anomalous situations.

• School Mathematics
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• v.4 no.3
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• pp.483-494
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• 2002

A Situation-problem, one of the problems in school mathematics, plays a role as the starting point of teaming mathematics. It leads to construct knowledge which is a tool for solving the problems. Whether the problem is a situation-problem or not, it depends upon how to use that problem. Since posing situation-problems is accompanied by prior analysis and planning for teaching in the class, it is a difficult task. This paper focuses on the characteristics of situation-problems and on how their characteristics are realized in the process of classroom instruction. For this purpose, it analyzes the context of classroom instruction to which the 'puzzle problem' model suggested by Brousseau is applied. The model is considered as a typical situation-problem, which aims at proportionality and linearity. In addition, this paper suggests various sources of information that are useful in posing the situation-problems related to the ratio concepts.

• Journal of Korea Society of Industrial Information Systems
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• v.19 no.4
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• pp.53-63
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• 2014

Moving context determination is an important issue to be resolved in a mobile computing environment. This paper presents a method for recognizing and classifying a mobile user's moving context by Euclidean distance similarity. In the proposed method, basic data are gathered using Global Positioning System (GPS) and accelerometer sensors, and by using the data, the system decides which moving situation the user is in. The decided situation is one of the four categories: stop, walking, run, and moved by a car. In order to evaluate the effectiveness and feasibility of the proposed scheme, we have implemented applications using several variations of Euclidean distance similarity on the Android system, and measured the accuracies. Experimental results show that the proposed system achieves more than 90% accuracy.

• Journal of Korea Multimedia Society
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• v.10 no.6
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• pp.786-798
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• 2007

As we go about our daily lives, people often collect surrounding information and adapt to the situation. Computer development trends show that one wants computers to work like human beings, i.e. computers can sense its context and adapt corresponding to context changes. To implement this expectation, a context aware service layer is needed. In this layer, sensors capture its environment and send this information to the service center. Considering received information as its context, the service center seeks the suitable operation according to the context. Tills paper presents a context aware service which is applied in controlling air-conditioner. The air-conditioner includes sensors which are installed at some special positions in a room. Each of these sensors gathers comfort-influenced information like temperature, humidity and sends them to air-conditioner. The air-conditioner adapts its operation to the environment according to the sensed information. To control the air-conditioner effectively, we use a genetic algorithm which is suitable in adaptation issues. The simulation shows that the room condition can be maintained at a comfortable level by using context-aware services in the operation of the air-conditioning system.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.10
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• pp.1079-1085
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• 2014

The analysis of the variable continuous big data stram should reach the destination context awareness. This study presented a novel way of context inference of the variable data stream from sensor motes. For assessment of the sensor data, we calculated the difference of each measured value at the time window and determined the belief value of each focal element. It was beneficial that calculate and assessment of factor of situation for context inference with the Dempster-Shfer evidence theory.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2005.10a
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• pp.119-123
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• 2005

New paradigm of the 21st is 'Ubiquitous'. And great changes arises from the digital environment and technology. Also, our living environments are changing very rapidly. Because of rapid developments, we didn't have enough time to examine our current situation. So we had to look around the current living spaces. The main purpose of this research was to know about the home network service and environmental context in our living spaces and to explore the outlook in the forseeable future. To search them, four recent digital home exhibition houses were examined. The findings showed that many kinds of common network systems were suggested and were acted in limited spaces. And when we examined the environmental context, we found most of the instruments were installed fixed ones or integrated information appliances. Therefore, the plan of digital home needs to consider environmental context and the combination of residents and living spaces.

• Journal of the Society of Disaster Information
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• v.16 no.3
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• pp.430-439
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• 2020

Purpose: As the frequency of impact typhoons increases and the form of damage becomes more complicated, the need for information to help disaster response workers recognize the typhoon situation in advance is growing. In this study, Definitions and implementation measures for information utilized at each stage of the task were proposed in carrying out typhoon response tasks that occur every year. Method: In 2019, the government classified information that was used for each step of work and conducted analysis on necessary information for the situation. Based on the analyzed information, typhoon status information was established through an opinion survey by central and local government officer. Result: The task of typhoon situations was the most important part of monitoring weather conditions and sharing damage situations, and the information utilized was analyzed to require information derived through the convergence of historical and situation information. Conclusion: As the correlation between work and information between the response departments increases as the typhoon situation progresses, information about typhoon situation should be applied to the actual typhoon situation in the future to enhance information and establish a related system.

• The Journal of the Korea Contents Association
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• v.6 no.3
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• pp.55-62
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• 2006

After the advent of the Ubiquitous environment, the movement for effective information management is progressing vividly. According to this situation, this paper conducts individualized context structure for individual service and also suggests 5W1H and HFC modeling which apply using priority to manage vast context data. Thus this modeling will function as a base model to embody Ubiquitous environment and offer context based service.