컴퓨터犯罪 對處方案에 관한 硏究

이종옥 중앙대학교 행정대학원 2000 국내석사

모바일 환경에서 반응형 웹 콘텐츠 제공방법

성현 동국대학교 2014 국내석사

These days web contents has been changed for spread out the mobile devices which could use web service like smart phone, tablet PC, etc. Web service provides same contents only for PC user without consideration for the other devices but recently we could find exclusive website for the mobile device users. The problem is expensive cost for maintenance of exclusive web site for mobile device users, for that reason most of company does not offer that. There are some problems when the mobile devices use multimedia contents like delay web in loading pages or error of contents offer. This thesis suggest applying a Responsive Web Design, which could offer an optimization interface for various equipments access web page to deal with that problems. It sorts devices automatically and provides all kinds of multimedia contents for advanced devices or offers the internet address to link instead of multimedia contents like movie or video clips for low specification devices. For that suggestion, it could offer optimization multimedia contents for various devices especially mobile devices and to minimize the delay of loading without previous errors and extra charges.

상황인지를 이용한 진료 안내 시스템

정화영 동국대학교 2014 국내석사

As the quality of the medical treatment service provided by large hospitals grow, the number of patients utilizing the facilities is increasing dramatically. Various studies such as order communication system and treatment guidance system are under their process in order to shorten the waiting time for patients. However, the existing methods assign the treatments in successive order without recognizing the situation of each treatment, therefore increasing a patient's standby time at a hospital. This paper proposes a context-aware treatment guidance system, which recognizes the previously undermined estimated waiting time of each treatment for a patient and recommends a treatment with shorter estimated sojourn time first. This context-aware treatment guidance system provides detailed information of treatment services based on the recommended order of treatments to a patient's smartphone. By utilizing the context-aware treatment guidance system introduced in this paper, patients can reduce their standby time at hospitals to the minimum while hospitals can efficiently service more patients at the same amount of time. The proposed context-aware treatment guidance system proves to be outstanding in treatment order recommendation through comparisons to previously used methods.

수정된 감마 코딩 기반 의료 검진 데이터 압축

구동윤 동국대학교 2014 국내석사

의료 정보 시스템의 발달로 인해 환자들의 진료 시간이 짧아지고 그에 따라 평균 진료 받는 환자들의 수가 증가하여 진료 데이터 양이 급속도로 증가하고 있다. 증가하는 환자들의 데이터를 효율적으로 저장, 관리하기 위해 기존에 다양한 압축 방법을 이용한 연구가 진행 중이다. 그러나 기존 방법들은 알고리즘이 복잡하고 측정값을 원시 데이터로 압축하여 저장하기 때문에 압축률이 떨어지는 단점이 있다. 이러한 문제를 해결하기 위해 본 논문에서는 비트 단위로 압축 가능한 감마 코딩 기법을 이용하여 측정값과 정상범위와의 편차를 부호화하여 압축하는 방법을 제안한다. 또한 측정값과 편차가 가장 적은 과거 데이터를 기준치로 하고 그 편차를 부호화하여 압축하는 방법을 제안한다. 제안하는 방법은 매우 간단하며 비트 단위로 압축하기 때문에 기존 방법보다 압축률이 높은 장점이 있다. 성능평가를 통하여 제안한 방법이 기존 압축방법보다 우수하다는 것을 검증한다. According to the development of medical information systems, shortened examination time per patient could increase the number of treatments, resulting in the rapid growth of the amount of medical data. Studies on how to efficiently compress and store medical text data of increasing patients are in progress. However, previous methods have the shortcoming of compressing medical text data as it is, resulting in low compression rate. This research tries to overcome the problem by using the gamma coding method which enables compression in bit unit. We propose a new compression scheme which encodes the deviations between measured values and normal range values. Furthermore, we suggest to use the previous value with the least deviation from the measurement as the standard value to encode that deviation. Even though the suggested methods are simple, they have high compression rates. Through performance evaluation, we show that the suggested methods are more efficient than the previous methods.

AN ENERGY-EFFICIENT DATA COLLECTION SCHEME FOR GRID-BASED WIRELESS SENSOR NETWORKS

Duong,Thi Minh Soan 동국대학교 2014 국내석사

In wireless sensor networks (WSNs), to prolong network lifetimes, methods for collecting sensing data based on grid have been studied extensively, due to their simplicity and scalability. Recently, in grid-based WSNs, schemes based on a virtual tree topology, such as the diagonal virtual tree—where a sink node is the root of the tree and sensor nodes are connected together in a special way—have been used to collect sensing data with purpose increasing network lifetime. In this method, however, the nodes closer to the sink node suffer from a heavy load of forwarding packets; therefore, they consume much more energy than the others. This unbalanced energy consumption is the major cause of shortened network lifetime. In this study, we propose the shortest route tree in grid-based WSN in which the route from an arbitrary node to the sink node has the shortest path and sub-trees have nearly equal load. A new energy-efficient data collection scheme based on the proposed tree is introduced, in which a node only receives its children’s data, and transmits its data to father thereof. This proposed method promises a great potential to reduce the heavy load of nodes near the sink node, mitigating the unbalanced energy consumption between nodes; thereby expanding network lifetime. The experimental results of the proposed scheme reveal that average energy consumption per round is reduced by 25.09% and the WSN lifetime is extended up to 22.41% in comparison with the diagonal virtual tree-based scheme.

주문형 데이터 방송을 위한 멀티채널 스케줄링

朴材炯 동국대학교 대학원 2008 국내석사

The third generation of a highly efficient portable is appeared by suing over 2GHz from the rapid developing of the recent mobile communication. Those mobile computer and portable devices can access to the wireless network for the requesting information without regard to time and place in the world. People are able to have the conversation while they are looking each other by using the high speed communication. Many of the related communication companies try to improve the several extended and new application program development and service. Some of the difficulty is generated in the wireless network environment with the existing cable network. The wireless network environment differs from the cable network because every device cannot maintain the optimum communication environment at the same time. Since the bandwidth of the wireless network and the portable devices battery capacity are limited while traveling, the decision of the usefulness for a client is important. The data broadcast technique is the way to give and receive information to save the consumption for the traveler’s bandwidth and the battery in the limited environment when the continuous service is difficult like the cable network. The multi-channel broadcast is used to solve the problem of the data broadcast of the existing single channel environment, so this technique proposes the effective broadcast method to the clients. The client's demanded broadcast data is provided and the requested broadcast is serviced after the investigation from the mobile user's favorite and frequent broadcasting. In this paper, many client's requesting data need to be provided through the broadcast server when the client claims information to the server. Therefore, the multi-channel broadcast technique is used to make the client’s quick listening. The requested data of the client takes on the queue and each channel allotment is given gradually in order to do the multi channel broadcast. By using the priority order of queue, the discriminating service is offered between the normal client group and the priority client group. The service begins in the division of the normal, priority, and high client group according to the level and the data trait.

원각사지 10층 석탑을 이용한 탑 다라니 콘텐츠 제작

이기옥 동국대학교 불교대학원 2007 국내석사

While the cultural contents industry that plays a main role in establishing culture since 21st century is gradually fixing its position in global contents market on the basis of global competitiveness, the market of Buddhist cultural property contents is still insufficient. In Korea, most of cultural properties are Buddhist cultural property, which is due to Buddhism that has continued as the representative spiritual post and part of life since the age of Three Kingdoms. Besides the tools used for religious act or spiritual asceticism among the Buddhist civilization, those have deep meaning or are used as tools in the life of people are quite likely to be developed as contents. Though the development of Buddhist cultural property contents has the potential to make Buddhist cultural property tour resources and maximize the necessity to preserve and globalize cultural property, there is difficulty in utilizing cultural property as new resources by preserving, restoring and designing its prototype as cultural property as well as working for contents. This research intends to contribute to the development of Buddhist design and Buddhist culture contents by developing the Pagoda Dharani design that uses ten-storied stone pagoda on the site of Wongaksa, the 2^(nd) national treasure and producing Pagoda Dharani design that uses ten-storied stone pagoda on the site of Wongaksa, the multimedia space for research on design utilization and activation of Buddhist cultural property contents.

Cassandra의 시간 데이터를 위한 확장된 집계 함수 구현

채희원 동국대학교 2013 국내석사

Formal Relational Database Management Systems provide many aggregate functions while NoSQL database Cassandra supports only count functions. So, there is a shortage in analyzing the data. In this thesis, to resolve this shortage, Cassandra provides aggregate functions by using command extension. Furthermore, it defines commands and forms of temporal data for aggregate functions. It also proposes algorithms for extended aggregate functions. To implement aggregate functions for temporal data, Cassandra extends commands. Extended aggregate functions are count, average, sum, max, min, rank, and stddev. In case of using temporal data, this paper implements extended commands using recent temporal data, a.m. data or p.m. data and user-defined temporal data. In this paper several types of examples for extended aggregate functions for temporal data are tested in Cassandra System. The proposal provides not only basic aggregate functions, but aggregate functions for temporal data. Therefore, user-oriented interface can improve performance of searching process.

우선순위 큐를 이용한 데이터 방송기법 구현

류호성 동국대학교 대학원 2007 국내석사

In mobile computing environments, nomadic users can acquire data anywhere, anytime via wireless communications. In mobile systems, data broadcasting is an excellent method for public data dissemination from a server to numerous mobile clients. But Broadcasting has several drawbacks such as the bandwidth of the wireless networks and the energy limitation of mobile devices. So there are some scheduling methods for wireless data broadcasting. However those methods did not consider client's priority. In this thesis, new data broadcast method is proposed in order to consider client's priority. Performance evaluation is also presented by comparing it with previous approaches through experiment.

유사도를 활용한 신뢰성 있는 저자 정보 확장 방법

유우준 동국대학교 2015 국내석사

The field of linked data is being actively pursued by the research community to explore new methods for connecting and expanding data. In order to continue connecting data, it is necessary that similar objects are identified. But to the best of our knowledge, so far no reliable object recognition method has been proposed. In this paper we proposes a new similarity calculation method. Our proposed method is based on public confidence level of web documents. This method will help in identification of objects (authors) and thereby pave the way for integration of related URI’s that will be finally presented to users. Our dataset used for verification, includes details about 10 objects (authors) to calculate recall and precision. This study compared with previous studies can attain higher accuracy results.