• Title/Summary/Keyword: User Profiling

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CGHscape: A Software Framework for the Detection and Visualization of Copy Number Alterations

  • Jeong, Yong-Bok;Kim, Tae-Min;Chung, Yeun-Jun
    • Genomics & Informatics
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    • v.6 no.3
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    • pp.126-129
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    • 2008
  • The robust identification and comprehensive profiling of copy number alterations (CNAs) is highly challenging. The amount of data obtained from high-throughput technologies such as array-based comparative genomic hybridization is often too large and it is required to develop a comprehensive and versatile tool for the detection and visualization of CNAs in a genome-wide scale. With this respective, we introduce a software framework, CGHscape that was originally developed to explore the CNAs for the study of copy number variation (CNV) or tumor biology. As a standalone program, CGHscape can be easily installed and run in Microsoft Windows platform. With a user-friendly interface, CGHscape provides a method for data smoothing to cope with the intrinsic noise of array data and CNA detection based on SW-ARRAY algorithm. The analysis results can be demonstrated as log2 plots for individual chromosomes or genomic distribution of identified CNAs. With extended applicability, CGHscape can be used for the initial screening and visualization of CNAs facilitating the cataloguing and characterizing chromosomal alterations of a cohort of samples.

Content Restructure Model for Learning Contents using Dynamic Profiling (온라인 교육 환경에서 동적 프로파일 기반 학습 콘텐츠 재구성 모델의 제안)

  • Choi, Ja-Ryoung;Sin, Eun Joo;Lim, Soon-Bum
    • The Journal of the Convergence on Culture Technology
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    • v.4 no.1
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    • pp.279-284
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    • 2018
  • With the availability of real-time student behavioral data, personalization on education is gaining a huge traction. Data collected from massively open online courses (MOOC) has shifted the content delivery method from fixed, static to user-adopted form. Such educational content can be personalized by student's level of achivement. In this paper, we propose a service that automates the content restructuring, based on dynamic profile. With the student behavioral data, the proposed service restructures educational content by changing the order, extending and shrinking the published material. To do this, we record students' behavioral data and content information as a metadata, which will be used to generate dynamic profile.

A Study on Optimal Proofing Conditions for Evaluation of the Domestic Offset Prints (국내 오프셋 인쇄물 평가를 위한 최적의 Proofing 조건에 관한 연구)

  • Lee, Won-Kyu;Cho, Ga-Ram;Ko, Chul-Whoi
    • Journal of the Korean Graphic Arts Communication Society
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    • v.29 no.1
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    • pp.1-21
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    • 2011
  • Because of high demand of color quality of the prints, proof prints are more important for end-user to predict and correct the final prints directly as an intermediate. Thus, proof prints can be used as a reference to take minimum ${\Delta}E^*ab$between the originals and finals in the field. The advantage of proof prints is to predict and correct color easily through the RIP(Raster Image Processor) without printing plates and plate making steps. While, it is thought that the proof systems are almost equivalent to the press in the past, present proof systems are more simple to take proof prints more easily due to the automation and digitalization. This paper addresses a method to perform an accurate profiling according to proof paper types and find optimal proof papers which meet proofing requirement. Although proof papers are matched with ISO 12647-7, we were trying to reduce ${\Delta}E^*ab$, In addition to the above, through the Gamut Mapping and Iteration, We were trying to find optimal proofing conditions.

SSR Profiling and Its Variation in Soybean Germplasm (콩 유전자원의 SSR Profiling과 변이)

  • Yoon, Mun-Sup;Lee, Jeong-Ran;Baek, Hyung-Jin;Cho, Gyu-Taek;Kim, Chang-Yung;Cho, Yang-Hee;Kim, Tae-San;Cho, Eun-Gi
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.52 no.1
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    • pp.81-88
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    • 2007
  • The evaluation of soybean germplasm has mainly been carried out by morphological characters at Genetic Resources Division, Rural Development Administration (RDA). However, this information has been limited serving a diverse information for user and effectively managing the soybean germplasm. To resolve this problem, soybean collection conserved at RDA gene bank was profiled using nine soybean SSR (Simple Sequence Repeat) markers. Soybean SSR allele was confirmed using genescan and genotyper softwares of automatic sequencer for accurate genotyping of each accession and continuous accumulation of data. SSR profiling of soybean germplasm has been carried out from 2,855 (Satt458) to 4,368 (Satt197) accessions by locus. The number of allele revealed 267 with an average of 29.6 in total accession, and varied from a low of 21 (Satt532 and Satt141) to a high of 58 (Sat_074). Although the number of accessions of wild soybean is less than that of soybean landraces, Korean wild soybean is more variable than other soybean landraces populations in total number of alleles. However, Korean soybean landraces were more variable than Korean wild soybeans in 5 loci. In the allele frequency, wild soybean accessions showed an even distribution in all alleles and higher distribution in low ladder than in high ladder. Also, Korean soybean landraces revealed a high condensed frequency in Satt286 (202 bp, 232 bp), Chinese soybean landraces in Satt197 (171 bp) and Satt458 (173 bp), and Japanese soybean landraces in Sat_074 (244 bp) and Satt458 (170 bp). These SSR profile information will be provided as indications of redundancies or omissions of accessions and can aid in managing soybean collection held at RDA gene bank. The information on diversity analysis could help to enlarge the genetic diversity of materials in breeding program, and could be used to develop a core collection of soybean germplasm.

A Study of Web Application Attack Detection extended ESM Agent (통합보안관리 에이전트를 확장한 웹 어플리케이션 공격 탐지 연구)

  • Kim, Sung-Rak
    • Journal of the Korea Society of Computer and Information
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    • v.12 no.1 s.45
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    • pp.161-168
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    • 2007
  • Web attack uses structural, logical and coding error or web application rather than vulnerability to Web server itself. According to the Open Web Application Security Project (OWASP) published about ten types of the web application vulnerability to show the causes of hacking, the risk of hacking and the severity of damage are well known. The detection ability and response is important to deal with web hacking. Filtering methods like pattern matching and code modification are used for defense but these methods can not detect new types of attacks. Also though the security unit product like IDS or web application firewall can be used, these require a lot of money and efforts to operate and maintain, and security unit product is likely to generate false positive detection. In this research profiling method that attracts the structure of web application and the attributes of input parameters such as types and length is used, and by installing structural database of web application in advance it is possible that the lack of the validation of user input value check and the verification and attack detection is solved through using profiling identifier of database against illegal request. Integral security management system has been used in most institutes. Therefore even if additional unit security product is not applied, attacks against the web application will be able to be detected by showing the model, which the security monitoring log gathering agent of the integral security management system and the function of the detection of web application attack are combined.

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Study on User Characteristics based on Conversation Analysis between Social Robots and Older Adults: With a focus on phenomenological research and cluster analysis (소셜 로봇과 노년층 사용자 간 대화 분석 기반의 사용자 특성 연구: 현상학적 분석 방법론과 군집 분석을 중심으로)

  • Na-Rae Choi;Do-Hyung Park
    • Journal of Intelligence and Information Systems
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    • v.29 no.3
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    • pp.211-227
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    • 2023
  • Personal service robots, a type of social robot that has emerged with the aging population and technological advancements, are undergoing a transformation centered around technologies that can extend independent living for older adults in their homes. For older adults to accept and use social robot innovations in their daily lives on a long-term basis, it is crucial to have a deeper understanding of user perspectives, contexts, and emotions. This research aims to comprehensively understand older adults by utilizing a mixed-method approach that integrates quantitative and qualitative data. Specifically, we employ the Van Kaam phenomenological methodology to group conversations into nine categories based on emotional cues and conversation participants as key variables, using voice conversation records between older adults and social robots. We then personalize the conversations based on frequency and weight, allowing for user segmentation. Additionally, we conduct profiling analysis using demographic data and health indicators obtained from pre-survey questionnaires. Furthermore, based on the analysis of conversations, we perform K-means cluster analysis to classify older adults into three groups and examine their respective characteristics. The proposed model in this study is expected to contribute to the growth of businesses related to understanding users and deriving insights by providing a methodology for segmenting older adult s, which is essential for the future provision of social robots with caregiving functions in everyday life.

Acute Toxicity of Cadmium on Gene Expression Profiling of Fleshy Shrimp, Fenneropenaeus Chinensis Postlarvae Using a cDNA Microarray (Microarray 분석을 이용한 대하 (Fenneropenaeus chinensis) 유생의 카드뮴 단기 노출에 따른 유전자변화)

  • Kim, Su-Kyoung;Qiao, Guo;Yoon, Jong-Hwa;Jang, In-Kwon
    • Journal of Environmental Science International
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    • v.24 no.5
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    • pp.623-631
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    • 2015
  • Microarray technology provides a unique tool for the determination of gene expression at the level of messenger RNA (mRNA). This study, the mRNA expression profiles provide insight into the mechanism of action of cadmium in Fleshy shrimp (Fenneropenaeus chinensis). The ability of genomic technologies was contributed decisively to development of new molecular biomarkers and to the determination of new possible gene targets. Also, it can be approach for monitoring of trace metal using oligo-chip microarray-based in potential model marine user level organisms. 15K oligo-chip for F. chinensis that include mostly unique sets of genes from cDNA sequences was developed. A total of 13,971 spots (1,181 mRNAs up- regulated and 996 down regulated) were identified to be significantly expressed on microarray by hierarchical clustering of genes after exposure to cadmium for different conditions (Cd24-5000 and Cd48-1000). Most of the changes of mRNA expression were observed at the long time and low concentration exposure of Cd48-1000. But, gene ontology analysis (GO annotation) were no significant different between experiments groups. It was observed that mRNA expression of main genes involved in metabolism, cell component, molecular binding and catalytic function. It was suggested that cadmium inhibited metabolism and growth of F. chinensis.

A Design and Implementation of a Context-Aware Framework for Mobile Navigation Services (모바일 항법 서비스를 위한 상황인지형 프레임워크의 설계 및 구현)

  • Kim, Hyun-Duk;Choi, Won-Ik;Kim, Jin-Su;Chae, Jin-Seok
    • Journal of Korea Multimedia Society
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    • v.11 no.2
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    • pp.214-227
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    • 2008
  • As cellular network technologies continue to evolve, various network standards coexist in most CDMA-based cellular networks. This means that mobile device users access mobile services over different network bandwidths according to the users' positions or the mobile devices' network access capabilities. Such differences of network bandwidths cause big differences in service response times. To address this problem, we present a framework called CANS (Context-Aware framework for mobile Navigation Services), which takes into account the user's network profile to adapt the contents for CDRG(Centrally Determined Route Guidance) navigation services for cellular phones. To the best of the authors' knowledge, CANS is the first context-aware framework to make mobile navigation services more feasible. The experimental results under commercial CDMA network show that CANS is able to provide similar service response times regardless of type of wireless network to which users connect by adapting the contents to network bandwidths.

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Profiling Usage Motivation in Micro-blogging Service by Q-methodology : The case of me2DAY (Q 방법론을 적용한 마이크로 블로깅 서비스의 이용 동기 유형 분석 : 미투데이 사례)

  • Kim, Kyung-Kyu;Kim, Hyo-Jin;Ryoo, Sung-Yul
    • The Journal of Society for e-Business Studies
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    • v.15 no.3
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    • pp.45-61
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    • 2010
  • This study investigated the types of intention to use micro-blogging service. In this study, we classified micro-blogging users' motivations using Q methodology which enables measure objectivity with subjective activity like individual thinking and feeling. The results of this study showed that micro-blogging service users' motivationswere classified into four types. Type 1 is 'relationship oriented type' and Type 2 is 'self-expression type.' Type 3 is 'time consumption type' and Type 4 is 'information seeking type.' The findings imply that the characteristics of each user type can be utilized to customize micro-blogging services.

A Performance Analysis Framework Considering the Hierarchy of Embedded Linux Systems Software Architecture (임베디드 리눅스 시스템의 소프트웨어 계층구조를 고려한 성능 분석 프레임워크)

  • Kwak, Sang-Heon;Lee, Nam-Seung;Lee, Ho-Rim;Lim, Sung-Soo
    • Journal of KIISE:Computing Practices and Letters
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    • v.16 no.6
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    • pp.637-647
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    • 2010
  • Recent embedded systems are being more complicated due to their hierarchical software architecture including operating systems. The performance of such complicated software architecture could not be well analyzed through separate analysis of each software layer; the combined effect and the interactions among the whole software layers should be considered. In this paper, we show the design and implementation of a performance analysis framework that enables hierarchical analysis of performance of Linux-based embedded systems considering interactions among the software layers. By using the proposed framework, we can obtain useful run-time information about a hierarchical software structure which usually consists of user-defined function layer, library function layer, system call layer, and kernel events layer. Experimental results reveal that the proposed framework could accurately identify the performance bottlenecks with the corresponding software layers during executions of target applications through the accompanying sub-steps of the analysis: the actual execution paths, the execution time of each observed event in each software layer, and the control flows across the software layers.