• The Journal of the Korea Contents Association
• /
• v.8 no.5
• /
• pp.44-51
• /
• 2008

Pattern matching and pattern searching in time series data have been active issues in a number of disciplines. This paper suggests a novel pattern matching technology which can be used in the field of stock market analysis as well as in forecasting stock market trend. First, we define conceptual patterns, and extract data forming each pattern from given time series, and then generate learning model using Hidden Markov Model. The results show that the context-based pattern matching makes the matching more accountable and the method would be effectively used in real world applications. This is because the pattern for new data sequence carries not only the matching itself but also a given context in which the data implies.

• Journal of Digital Contents Society
• /
• v.10 no.3
• /
• pp.395-400
• /
• 2009

The wide spread of the Internet service has brought in web GIS development. But, there are problems of the user access latencies, the network traffic, and the server overload in Internet Geographic Information System because spatial data are transferred in large volumes. In this paper, I propose a cache algorithm on client side to solve the above problems. The proposed algorithm demonstrates the performance improvement over known studies by utilizing unit time and spatial proximity. In addition, this paper conducts a performance evaluation to measure the improvement in algorithm efficiency and analyzes the results of the performance evaluation. When spatial data queries are conducted, according to our performance evaluation, hit rate has been improved over the existing algorithms.

• Journal of Digital Contents Society
• /
• v.19 no.5
• /
• pp.927-933
• /
• 2018

One of the factors that have the greatest influence on the error of the question answering system that finds and provides answers to natural language questions is the step of searching for documents or passages that contain correct answers. In order to improve the retrieval performance, it is necessary to understand the characteristics of documents and passages containing correct answers. This paper experimentally analyzes how many question words appear in the correct answer documents, how the location of the question word is distributed, and how the topic of the question and the correct answer document are similar using the corpus composed of the question, the documents with correct answer, and the documents without correct answer. This study explains the causes of previous search research results for question answer system and discusses the necessary elements of effective search step.

• The Journal of the Korea Contents Association
• /
• v.10 no.12
• /
• pp.216-222
• /
• 2010

To improve the quality of life, wireless ad-hoc network technologies are considered as one of the key research areas in computer science and healthcare application industries. The ubiquitous healthcare systems also provide alerting mechanisms against ill conditions in real time. This minimizes the need for care-givers and helps the chronically ill and elderly to survive. For the application of the system, supporting the efficient and proper network system is essential. So in this paper, I suggest some hospital network environments including patient mobile nodes continuously sending brainwaves to the server of the hospital area. Finally, the network systems are simulated by OPnet simulator and evaluate the performance among various mobility of the mobile nodes and topologies of the network for the efficient system.

• The Journal of the Korea Contents Association
• /
• v.6 no.11
• /
• pp.104-109
• /
• 2006

Recently, embedding method of a story into a game has gathered much attention than ever. In this study, the 12 phases of Hero's Journey, which was suggested by Joseph Campbell and was highlighted in the area of movies and myths, has been analysed at a point of Christoper Vogler. Since a gamer is not just only a player but also a story-teller in a game, the story experienced by the player enjoying the game was examined and correlated with the 12 phases of Campbell. The game RCT3, a construction/management simulation game ,produced by Atari, was studied. The 12 phases of Campbell was applicable to game story.

• Journal of Digital Contents Society
• /
• v.16 no.5
• /
• pp.795-803
• /
• 2015

is a service providing story synopsis that matches user's query. This paper analyzes the user log of and shows the tendency distribution of user creation in comparison to stories in database. We also investigate the log to see possible improvements on search method. This paper proposes a concept of Story Map, in which the query-answer information is projected into spatial coordinates, and a new story search UI based on it. Using the Story Map, users are able to see entire spatial distribution of story database so that they can quickly and intuitively find a story on the map.

• Journal of Digital Contents Society
• /
• v.8 no.4
• /
• pp.499-507
• /
• 2007

With the increasing of users' request about internet web service, importance of Internet datawarehouse to support decision making of users is increasing now. Early Internet datawarehouse was studied in the form of using existent database and XML. However, because of limitation of information expression ability, it is gradually changed to system that use metadata schema like RDFS. Because of distributed environment of the Internet, integration and saving of each metadata schemas into one global schema is important. However, between each different schema, semantic and structural conflicts can be happen in such situation and they must be controlled. In this paper, we analyze occasions of conflict when integrate distributed metadata schemas and propose conflict resolution technique for efficient internet datawarehouse query processing.

• The Journal of the Korea Contents Association
• /
• v.17 no.9
• /
• pp.536-548
• /
• 2017

This study aimed to investigate the effect of leisure satisfaction on psychological wellbeing. The study conducted a survey of people aged 65 and over from five seniors welfare center located in Seoul and Gyeonggi area. The results were as follows. First, the leisure satisfaction by demographic characteristic had shown significantly difference partially in gender, education level, and leisure types. Second, the psychological wellbeing by demographic characteristic had shown significantly difference partially in gender, age, and education level. Third, the leisure satisfaction had a significant effect on the psychological wellbeing partially and it was confirmed that the leisure satisfaction was a mightily important factor to increase psychological wellbeing and Quality of Life.

• Proceedings of the Korea Contents Association Conference
• /
• 2008.05a
• /
• pp.754-758
• /
• 2008

Since our country is rapidly progressing from an aging society to an advanced age society, it already puts in effect basic old-age pension system, hurries training human resources like care-giver, and has ahead offering the aged long-term care insurance. But our country still needs to develop a systematic curriculum in order to train professionals that can fundamentally deal with an aging society problems. In this paper, therefore, we describe the development of a curriculum for training silver-care professionals improving qualities of old person life in order to suit to an aged society and prepare for an advanced age society. It includes a network model of a silver-care curriculum based on subject classifications according to fields and levels.

• The Journal of the Korea Contents Association
• /
• v.21 no.12
• /
• pp.765-790
• /
• 2021

The affection-image is the close-up of the face with real connections in space-time, or with virtual conjunction, outside spatio-temporal co-ordinates. The close-up can carry its own space-time in background. with deframing and fragmentation, Space itself has left behind its own space-time connection and become any-space-whatever that is the affection-image. The elements of any-space-whatever are the shadows, lyrical abstraction, the colors, the disconnected parts, the empty space. Deleuze examines any-space-whatever through the close ups, fragmentation of space and de-framing in Dreyer and Bresson's cinema.