• Journal of Information Science Theory and Practice
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• v.1 no.1
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• pp.10-26
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• 2013

Domain transfer is a widely recognized problem for machine learning algorithms because models built upon one data domain generally do not perform well in another data domain. This is especially a challenge for tasks such as opinion classification, which often has to deal with insufficient quantities of labeled data. This study investigates the feasibility of self-training in dealing with the domain transfer problem in opinion classification via leveraging labeled data in non-target data domain(s) and unlabeled data in the target-domain. Specifically, self-training is evaluated for effectiveness in sparse data situations and feasibility for domain adaptation in opinion classification. Three types of Web content are tested: edited news articles, semi-structured movie reviews, and the informal and unstructured content of the blogosphere. Findings of this study suggest that, when there are limited labeled data, self-training is a promising approach for opinion classification, although the contributions vary across data domains. Significant improvement was demonstrated for the most challenging data domain-the blogosphere-when a domain transfer-based self-training strategy was implemented.

• SUVANNABHUMI
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• v.16 no.1
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• pp.125-143
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• 2024

Korean dramas, commonly referred to as Koreanovelas or K-Dramas in the Philippines, have significantly influenced and reshaped Philippine television culture since the early 2000s. Their impact persists in contemporary television programming, reflecting the transnational flow of media texts across borders. As media content transcends geographical boundaries, local media companies have adopted the practice of producing adaptations of foreign television series for their audiences. This paper examines the adaptation of the Koreanovela The World of the Married into the Philippine series The Broken Marriage Vow, both of which are adaptations derived from the British show Doctor Foster. Through this comparative analysis, I argue that the process of localizing these television shows to suit the preferences of the target audience serves as a tangible manifestation of transnational adaptation. Particularly in an era of globalization, where entertainment is still a thriving enterprise, thus traversing international borders, this phenomenon demonstrates the evolving nature of television content as it adapts and caters to diverse cultural contexts let alone a profitable means to generate an ailing entertainment industry, especially in the time of the pandemic.

• 한국HCI학회:학술대회논문집
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• 2007.02a
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• pp.210-215
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• 2007

본 연구에서는 정보 손실을 최소화하고 웹 페이지 저작자의 의도를 보존하기 위하여 일반적인 웹페이지를 모바일 디바이스(주로 휴대전화)용 웹페이지로 적합화(adaptation)하는 프록시(proxy)를 제안한다. 분할된 이미지에 대한 변환 시 사용되는 경험적인 방법을 제안하고, 웹페이지 변환 시에 발생하는 문제점에 대해 프로세스적인 측면에서 개선된 방법 제시한다. 다른 연구 성과와의 비교 실험을 통하여 제안된 프록시의 성능과 정확도를 비교평가 한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.8
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• pp.3856-3872
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• 2018

HTTP-based adaptive streaming (HAS) has recently been widely deployed on the Internet. In the HAS system, a video content is encoded at multiple bitrates and the encoded video content is segmented into small parts of fixed durations. The HAS client requests a video segment and stores it in the playout buffer. The rate adaptation algorithm employed in HAS clients dynamically determines the video bitrate depending on the time-varying bandwidth. Many studies have shown that an efficient rate adaptation algorithm is critical to ensuring quality-of-experience in HAS systems. However, existing algorithms have problems estimating the network bandwidth because bandwidth estimation is performed on the client-side application stack. Without the help of transport layer protocols, it is difficult to achieve accurate bandwidth estimation due to the inherent segment-based transmission of the HAS. In this paper, we propose an alternative approach that utilizes the playout buffer occupancy rather than using bandwidth estimates obtained from the application layer. We start with a queueing analysis of the playout buffer. Then, we present a buffer-aware rate adaptation algorithm that is solely based on the mean buffer occupancy. Our simulation results show that compared to conventional algorithms, the proposed algorithm achieves very smooth video quality while delivering a similar average video bitrate.

• Journal of Multimedia Information System
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• v.2 no.1
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• pp.153-162
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• 2015

In today's pervasive computing environments, multimedia content should be adapted to meet various conditions of network connections, terminals, and user characteristics. Scalable Video Coding (SVC) is a key solution for video communication over heterogeneous networks, where user terminals have different capabilities. This paper presents a standard-compliant approach that adapts an SVC bitstream to support multiple users. The adaptation problem is formulated as an optimization problem, focusing on the tradeoff between qualities of different spatial layers of an SVC video. Then the adaptation process is represented by standard metadata of MPEG-21, which can be solved by universal processing to enable interoperable and automatic operation. Our approach provides the users with optimal quality, a wide flexibility, and seamless adaptation. To the best of our knowledge, this is the first study that shows the adaptation tradeoff between spatial layers of a conforming SVC bitstream.

• The Journal of the Korea Contents Association
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• v.15 no.3
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• pp.318-326
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• 2015

In the age of media convergence the influx of foreign TV content is quickly influencing the landscape of Korean media. The objective of this research is to analyze and explore the localization and Koreanization of Master Chef USA into Master Chef Korea and how its successful adaptation, transformation, and localization was made possible. The study pays close attention to TV personalities' relationships, behaviors and communication skills along with the choice of food ingredients and themes in the 2014 episodes for both Master Chef USA and Master Chef Korea. Furthermore, the research seeks to challenge the widely spread belief that localization of foreign TV content serves the public interest. Rather it seeks to articulate that depending on the media environment, private entities are becoming the benefactors of foreign TV content adaptations.

• The KIPS Transactions:PartA
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• v.16A no.5
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• pp.389-394
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• 2009

Lately the usage of multimedia equipment with small LCD displays is rapidly increasing. Although many people use devices like this, videos intended for TV or HDTV are sent to these mobile devices. Therefore cases where it is hard for the user to view the desired scenes are growing more frequent. Currently, most services simply reduce the size of the content to fit the screen when they offer it for mobile devices. However, especially with sports broadcasts, there are many areas that cannot be seen very well because it was simply reduced in size. We therefore consider this weakness and are researching how to let the user choose an area of interest and then sending it to the user in a way that fits the device. In this paper, we address the problem of video delivery and personalization. For the delivered video content, we suggest the UP-SAM User Personalized Context-Aware Service Adaptation Middleware) model that uses the video content description and MPEG-21 multimedia framework.

• Korean Parent-Child Health Journal
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• v.20 no.1
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• pp.28-38
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• 2017

Purpose: This study was aimed to identify pregnancy and childbirth experience of Vietnamese marriage migrant women who have pregnancy and childbirth experience during adaptation to Korea. Methods: A qualitative study was conducted, using focus group interview. Data were collected from October 2011 to March 2012 from 10 Vietnamese women of 2 focus groups who have experienced pregnancy or childbirth in Korea. Data were analyzed using content analysis in order to identify significant themes. Results: This study was analyzed into five major themes: 'difficulty of adaptation to other cultures', 'difficulty and joy of pregnancy', 'effort to live as a Korean', 'not-so-difficult childbirth', and 'unbearable postpartum conditions.' Conclusion: It is meaningful of this study to reveal this: for Vietnamese marriage migrant women, the support for adaptation to Korean culture and postpartum care is a priority rather than the necessity of development of the program about pregnancy and childbirth.

• Journal of Korea Multimedia Society
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• v.25 no.2
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• pp.353-362
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• 2022

In the era of transmedia, it has become normalized to use different media for the same content. The paper of this research is, in such a transmedia era, in order to meet the needs of the public, what elements should be considered when adapting a novel into a game. The study takes the novel "Zhu Xian" and its game adaptation "Zhu Xian Hand Tour" as the research object, focusing on the worldview and characters, analyzing the elements needed for the adaptation, and uses a questionnaire to understand players' satisfaction with the elements of the adaptation. The results show that the audience satisfaction of the worldview and character visualization elements in the adaptation of "The Zhu Xian Hand Tour" is high, but the basic information and appearance elements in the ethnic composition of the worldview and the character visualization elements need to be modified. The study can provide a design suggestion for game planners and designers.

• Journal of Korea Society of Industrial Information Systems
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• v.11 no.3
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• pp.69-81
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• 2006

In this paper, an adaptive algorithm is proposed in streaming MPEG-4 contents with fluctuating resource amount such as throughput of network conditions. In the area of adaptive streaming issue, a lot of researches have been made on how to represent encoded media(such as video) bitstream in scalable way. By contrast, MPEG-4 supports object-based multimedia content which is composed of various types of media streams such as audio, video, image and other graphical elements. Thus, it can be more effective to provide individual media streams in scalable way for streaming object-based content to heterogeneous environment. The proposed method provides the multiple media streams corresponding to an object with different qualities and bit rate in order to support object based scalability to the MPEG-4 content. In addition, an optimal selection of the multiple streams for each object to meet a given constraint is proposed. The selection process is adopted a multiple choice knapsack problem with multi-step selection for the MPEG-4 objects with different scalability levels. The proposed algorithm enforces the optimal selection process to maintain the perceptual qualities of more important objects at the best effort. The experimental results show that the set of selected media stream for presenting objects meets a current transmission condition with more high perceptual quality.