• 제목/요약/키워드: Biomedical Information

검색결과 1,681건 처리시간 0.034초

PubMiner: Machine Learning-based Text Mining for Biomedical Information Analysis

  • Eom, Jae-Hong;Zhang, Byoung-Tak
    • Genomics & Informatics
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    • 제2권2호
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    • pp.99-106
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    • 2004
  • In this paper we introduce PubMiner, an intelligent machine learning based text mining system for mining biological information from the literature. PubMiner employs natural language processing techniques and machine learning based data mining techniques for mining useful biological information such as protein­protein interaction from the massive literature. The system recognizes biological terms such as gene, protein, and enzymes and extracts their interactions described in the document through natural language processing. The extracted interactions are further analyzed with a set of features of each entity that were collected from the related public databases to infer more interactions from the original interactions. An inferred interaction from the interaction analysis and native interaction are provided to the user with the link of literature sources. The performance of entity and interaction extraction was tested with selected MEDLINE abstracts. The evaluation of inference proceeded using the protein interaction data of S. cerevisiae (bakers yeast) from MIPS and SGD.

마이크로LED를 응용한 차세대 생체 치료 소자 개발 (Next-Generation Biomedical Devices via MicroLEDs)

  • 이한얼
    • 한국전기전자재료학회논문지
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    • 제34권4호
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    • pp.221-228
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    • 2021
  • With the advent of the IoT (internet of things) era, there has been discussion on how to efficiently use various information from daily life. In academic and industrial society, various smart devices such as smart watches, smart phones, and smart glasses have been developed and commercialized for narrowing the physical/psychological distance with user information. According to recent developments of smart devices, the contemporary people have desired to check their body information and treat disease by themselves. According to the needs of the time, biological researches by phototherapy/monitoring have been actively conducted. Among various light sources, microLEDs have been spotlighted due to their superior optoelectric properties and stability. In this paper, we would like to review the state-of-the research results on the next-generation biological therapy devices via microLEDs.

UWB 기술을 이용한 자율주행 물류로봇 (Self-Driving Logistics Robot Using UWB)

  • 곽진섭;김도현;김민지;김혜민;오송경;최효선
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2022년도 추계학술발표대회
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    • pp.1074-1076
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    • 2022
  • 본 논문에서는 각종 물류를 운반해야 하는 실내외 환경에서 스스로 실시간 위치측위가 가능하고 사용자를 등록 및 추적할 수 있는 개인용 AGV 로봇을 제안하였다. 제안한 로봇은 UWB(Ultra Wide Broadband)기반의 비콘을 이용해 사용자를 등록, 실시간 위치를 파악하는 것을 통해 추적하는 기능을 제공한다. 로봇을 사용하기 위한 기반시설이 구축되지 않은 환경에서 활용될 수 있는 방안을 제안하고자 한다.

Development of Bioartificial Ligament for ACL Reconstruction

  • Seo, Young-Kwon;Choi, Kyung-Min;Kwon, Soon-Yong;Lee, Hwa-Sung;Park, Yong-Soon;Song, Kye-Yong;Lee, Doo-Hoon;Kim, Young-Jin;Park, Jung-Keug
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2005년도 생물공학의 동향(XVI)
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    • pp.226-226
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    • 2005
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간 조직 초음파 신호의 cepstrum 분석 (Cepstral Analysis of the Ultrasonic Signal from the liver tissue)

  • 김종원;곽철은;서보석;민병구
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(II)
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    • pp.1247-1251
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    • 1987
  • Cepstral analysis was performed on the ultrasonic echo signal from the tissue to achieve improvement on the estmation of the attenuation coefficient. In this paper, the feasibility of the acquiring the structural information of the tissue was also included by same method with band pass lifter.

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SABA (secondary structure assignment program based on only alpha carbons): a novel pseudo center geometrical criterion for accurate assignment of protein secondary structures

  • Park, Sang-Youn;Yoo, Min-Jae;Shin, Jae-Min;Cho, Kwang-Hwi
    • BMB Reports
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    • 제44권2호
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    • pp.118-122
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    • 2011
  • Most widely used secondary structure assignment methods such as DSSP identify structural elements based on N-H and C=O hydrogen bonding patterns from X-ray or NMR-determined coordinates. Secondary structure assignment algorithms using limited $C{\alpha}$ information have been under development as well, but their accuracy is only ~80% compared to DSSP. We have hereby developed SABA (Secondary Structure Assignment Program Based on only Alpha Carbons) with ~90% accuracy. SABA defines a novel geometrical parameter, termed a pseudo center, which is the midpoint of two continuous $C{\alpha}s$. SABA is capable of identifying $\alpha$-helices, $3_{10}$-helices, and $\beta$-strands with high accuracy by using cut-off criteria on distances and dihedral angles between two or more pseudo centers. In addition to assigning secondary structures to $C{\alpha}$-only structures, algorithms using limited $C{\alpha}$ information with high accuracy have the potential to enhance the speed of calculations for high capacity structure comparison.