• Title/Summary/Keyword: use of information source

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A Method for Information Source Selection using Teasaurus for Distributed Information Retrieval

  • Goto, Shoji;Ozono, Tadachika;Shintani, Toramatsu
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2001.01a
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    • pp.272-277
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    • 2001
  • In this paper, we describe a new method for selecting information sources in a distributed environment. Recently, there has been much research on distributed information retrieval, that is information retrieval (IR) based on a multi-database model in which the existence of multiple sources is modeled explicitly. In distributed IR, a method is needed that would enable selecting appropriate sources for users\` queries. Most existing methods use statistical data such as document frequency. These methods may select inappropriate ate sources if a query contains polysemous words. In this paper, we describe an information-source selection method using two types of thesaurus. One is a thesaurus automatically constructed from documents in a source. The other is a hand-crafted general-purpose thesaurus(e.g. WordNet). Terms used in documents in a source differ from one another and the meanings of a term differ depending on th situation in which the term is used. The difference is a characteristic of the source. In our method, the meanings of a term are distinguished between by the relationship between the term and other terms, and the relationship appear in the co-occurrence-based thesaurus. In this paper, we describe an algorithm for evaluating a usefulness of a source for a query based on a thesaurus. For a practical application of our method, we have developed Papits, a multi-agent-based in formation sharing system. An experiment of selection shows that our method is effective for selecting appropriate sources.

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Open source viewer-based BIM Query Development for BIM information visualization (BIM 정보 가시화를 위한 오픈소스 뷰어기반 BIM 질의 개발)

  • Kang, Tae Wook
    • Journal of KIBIM
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    • v.5 no.2
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    • pp.19-25
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    • 2015
  • The purpose of this study is to design simple BIM query language for visualizing BIM information as the viewpoint of use-cases by using open source viewer cost-effectively. recently, the studies related to the facility management using BIM are being researched world-widely. In this studies, it's important to develop the BIM query to obtain the needed data from BIM database. To implement it, the trends in related studies were reviewed and the open source-based BIM viewer architecture was analyzed. And then the architecture considering the simple BIM Query Language (sBQL) was designed to represent the geometry and property of the BIM database. Lastly, the system by using the proposed sBQL grammar was developed.

Facilitating Data Source Movement with Time-Division Access in Content-Centric Networking

  • Priyono, Olivica;Kong, In-Yeup;Hwang, Won-Joo
    • Journal of Korea Multimedia Society
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    • v.17 no.4
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    • pp.433-440
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    • 2014
  • Wireless communication offers the flexibility to the node movement at the spatial dimension more than the wire communication not only in IP architecture but also in Content-Centric Networking. Although it gives such advantage, the intra-domain movement of a node especially the data source node affects the communication to the access point node which in the end affects the acceptance ratio of the client node that requests the data packets from the data source node. In this paper, we use time-division access method to maintain the acceptance ratio of the client node as the effect of the intra-domain data source node movement in Content-Centric Networking. The simulation result shows that the acceptance ratio of the client node can be maintained using the time-division access method as long as the interval access time is less than the coherence time.

A Tool for Signature-Based Identification of Safe Open-Source Functions Toward Efficient Malware Analysis (악성코드의 효율적인 분석을 위한 안전한 오픈소스 함수에 대한 시그니처 기반 식별 도구)

  • Lee, Seoksu;Yang, Jonghwan;Jung, Woosik;Kim, Yeongcheol;Cho, Eun-Sun
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.27 no.4
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    • pp.721-729
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    • 2017
  • In order to take rapid action against malware, efficiency in malware analysis is essential. For instance, it would be helpful to identify and eliminate open-source function bodies or other safe portions out of the target binary codes. In this paper, we propose an tool to create open source dynamic link library files in Windows environment, extract signature information by opensource and compiler version, and compare open source function information to find suspicious function. In addition, the tool can save the information used in the comparison to the DB and use it later, reducing the analysis time overhead.

Modeling of EMI Source Using Inverse Techniques (역산 기법을 이용한 EMI Source의 모델링)

  • Im, Chang-Hwan;Jung, Hyun-Kyo;Kim, Hyeong-Seok;Lee, Jeong-Hae
    • Journal of The Institute of Information and Telecommunication Facilities Engineering
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    • v.2 no.1
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    • pp.37-44
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    • 2003
  • In this paper, a technique to estimate EMI source distribution on a digital circuit board ir introduced. A sensitivity analysis method is applied to reconstruct the source distribution from measured electric field data. Results from a single-layer measurement and a double-layer measurement are compared. It will be shown, from the simulation, that the use of sensitivity analysis for the EMI source reconstruction problem can be a very promising technique.

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An Implementation for EIP Adopting XUL and SVG (XUL과 SVG를 이용한 EIP 구축에 관한 연구)

  • Cho, Chang-Hee;Kim, Hang-Bae;Lee, Nam-Yong
    • Journal of Information Technology Services
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    • v.3 no.1
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    • pp.79-88
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    • 2004
  • Practical use of Information Technology in present enterprise simply enterprise support do pass over known dimension and is utilizing by means for enterprise competitive power strengthening. Because of these point, a lot of kind of information systems appeared. It can be said that EIP system that many enterprises are introducing recently is concept that appear to also use information in enterprise more efficiently. If present EIP system sees construct example, segment is detected to improve some. First, should do duplicate development despite it is same function to use EIP system in wireless and web browser environment. Second, can hear management's difficulty by immense contents that happen in System Integration. We wish to solve problem that happen in development of existing EIP system using XUL and a SVG technology in this paper that aim to these. XUL is open source In language to manufacture UI that do not receive court of platform and existence and nonexistence captain rain, support wireless and web browser equipment at the same time to source that is produced once if is browser that can manufacture usable interface in web and supports XUL as user wants. SVG method is a skill that can offer convenience that is epoch-making in contents management by software that describe contents representation in source code unlike form that show because calls contents forming already in the existent bit map room and establishes to browser handles this and expresses contents. In paper, produced use of XUL and SVG by prototype to presented whether can apply XUL and a SVG technology to actuality EIP system and verifies whether this is possible and that do actuality through existent method and comparison and excellency were seen.

The Effects of Promotion Activities of Pharmaceutical Companies on Physicians' Prescription (제약회사의 판촉전략이 의약품 처방에 미치는 영향)

  • Park, Sang-Jun
    • Korean Management Science Review
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    • v.28 no.2
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    • pp.93-103
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    • 2011
  • This paper has aimed to identify marketing variables which affect physicians' prescription of drug. Based on a literature review this paper derives the three factors (indirect commercial source, direct commercial source, academic information source) of information sources that physicians rely on for medicines, the three factors (research supporting activity, marketing supporting activity, medicine information supporting activity) of promotion activities physicians prefer, and the four factors (indirect quality of medicine, direct quality of medicine, experience of using medicine, price and design of medicine) of prescription criteria physicians use. Then it investigates using canonical correlation analysis whether or not physicians' prescriptions are affected by the information sources, the promotion activities, and the type of physicians. From the canonical correlation analysis this paper derives the meaningful three canonical functions of prescription for drugs. The first function explains the prescription which is insensitive to marketing activities, the second function does the prescription which is sensitive to them, and the final function does the prescription which is not affected by them.

A Study on the Perception Use and Demand of Housewife-Consumers for Nutrition Label (영양표시에 대한 주부소비자의 인지, 이용, 요구도 조사연구)

  • 장순옥
    • Journal of Nutrition and Health
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    • v.33 no.7
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    • pp.763-773
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    • 2000
  • On the basis of the concept retained in nutition label(NL) the consumer's perception use and demand on NL nutrition knowledge(NH) purchase of nutrient controlled food and dietary modification for health were examined. The subjects were 1203 house wives mainly in the age of 30-40 and self administered questionnaire was employed. The results were as follows. Subjects' demand on nutrition information was greater while the availablity and usefulness of NL was unsatisfactory. The purchase frequencies of nutrient controlled foods were higher compared to NL reading. The use comprehenison reliability of nutrition information were better in high NK group compared to low NK group except the reliability on health claims. The required nutrients for content information were in the order of calorie Ca cholesterol Fe protein and total fat. The demand for nutrient content information was carrelated with intention of subjects' dietary modification but not the use of NL. These results indicate that NL be a good source of nutrition information and the consumers' demand for NL was based on their dietary purpose though the use of NL was unconfirmed.

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Spring Boot-based Web Application Development for providing information on Security Vulnerabilities and Patches for Open Source Software (Spring Boot 기반의 오픈소스 소프트웨어 보안 취약점 및 패치 정보 제공 웹 어플리케이션 개발)

  • Sim, Wan;Choi, WoongChul
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.17 no.4
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    • pp.77-83
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    • 2021
  • As Open Source Software(OSS) recently invigorates, many companies actively use the OSSes in their business software. With such OSS invigoration, our web application is developed in order to provide the safety in using the OSSes, and update the information on the new vulnerabilities and the patches at all times by crawling the web pages of the relevant OSS home pages and the managing organizations of the vulnerabilities. By providing the updated information, our application helps the OSS users and developers to be aware of such security issues, and gives them to work in the safer environment from security risks. In addition, our application can be used as a security platform to greatly contribute to preventing potential security incidents not only for companies but also for individual developers.

Texture Transfer Based on Video (비디오 기반의 질감 전이 기법)

  • Kong, Phutphalla;Lee, Ho-Chang;Yoon, Kyung-Hyun
    • Proceedings of the Korean Information Science Society Conference
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    • 2012.06c
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    • pp.406-407
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    • 2012
  • Texture transfer is a NPR technique for expressing various styles according to source (reference) image. By late 2000s, there are many texture transfer researches. But video base researchers are not active. Moreover, they didn't use important feature like directional information which need to express detail characteristics of target. So, we propose a new method to generate texture transfer animation (using video) with directional effect for maintaining temporal coherence and controlling coherence direction of texture. For maintaining temporal coherence, we use optical flow and confidence map to adapt for occlusion/disocclusion boundaries. And we control direction of texture for taking structure of input. For expressing various texture effects according to different regions, we calculate gradient based on directional weight. With these techniques, our algorithm can make animation result that maintain temporal coherence and express directional texture effect. It is reflect the characteristics of source and target image well. And our result can express various texture directions automatically.