• Journal of Korea Technology Innovation Society
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• v.14 no.spc
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• pp.1152-1170
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• 2011

We selected core documents from enormous number of documents by analyzing citation relation of papers or patents including direct citation and indirect citation. Then we tried to creat the technology evolution path from citation network tree. By applying the method to the patent DB of OLED (Organic Light Emitting Diode), we obtained genealogical citation network of core patents of OLED. We analyzed how the one of OLED technology was transferred to the semiconductor related technology and we named the process of transition as 'technology evolution path' of OLED technology. And we also analyzed the genealogical citation network of papers on graphene. From the analysis, we found that the weight count method including indirect citation was better in evaluating the value of technology of a paper than the times cited method.

• Journal of Digital Convergence
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• v.18 no.3
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• pp.1-12
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• 2020

The purpose of this study is to explore the trend of blockchain technology through analysis of patents and news articles using text mining, and to suggest the blockchain policy agenda by grasping social interests. For this purpose, 327 blockchain-related patent abstracts in Korea and 5,941 full-text online news articles were collected and preprocessed. 12 patent topics and 19 news topics were extracted with latent dirichlet allocation topic modeling. Analysis of patents showed that topics related to authentication and transaction accounted were largely predominant. Analysis of news articles showed that social interests are mainly concerned with cryptocurrency. Policy agendas were then derived for blockchain development. This study demonstrates the efficient and objective use of an automated technique for the analysis of large text documents. Additionally, specific policy agendas are proposed in this study which can inform future policy-making processes.

• Annual Conference on Human and Language Technology
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• 2003.10d
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• pp.173-176
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• 2003

본 논문은 언어학적 데이터로부터 자동으로 온톨로지를 생성하기 위한 모델을 제안하고 이를 구현한다. 모델 제안을 위해 온톨로지의 기본 구성 요소인 개념과 관계를 정의하고 이러한 개념과 관계 객체를 자동으로 추출하는 알고리즘을 제안한다. WordNet을 이용하여 개념을 자동으로 추출하고, 추출된 개념들간의 관계는 한국어의 구문적 특성을 이용하여 관계의 기본 형태를 정의하고 이를 기반으로 관계를 추출한다. 본 논문은 특허문서에서 전기통신기술문서를 대상으로 구현했으며, 제안된 알고리즘을 다른 영역으로 확장하여 이를 검증할 것이다.

• Electronics and Telecommunications Trends
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• v.23 no.1 s.109
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• pp.89-98
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• 2008

최근 들어 인터넷 보급과 확산, 그리고 국제 교류가 심화됨에 따라 사람들이 단일언어의 장벽을 뛰어넘어 다른 언어 정보에 대한 수요가 급증하고 있는 추세이다. 또한 의사소통 방법도 기존의 면대면 대화나 편지 등으로부터 메신저, 이메일, 핸드폰 등으로 다양화되면서 자동 통/번역 기술을 통한 의사소통 및 타 언어 정보의 획득이 가능해지고 있으며 자동 통/번역 기술 또한 크게 각광받고 있다. 이에 대비하여 각국에서는 자동번역 기술을 국가주도 하에 경쟁적으로 진행하고 있으며, 그 응용도 웹 문서, 특허문서, 구어체 등으로 다양화되고 있다. 본 고에서는 자동번역 기술의 동향 및 국내외 응용사례를 소개하고 향후 자동번역 기술 개발의 방향을 점검해보고자 한다.

• Journal of Intelligence and Information Systems
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• v.29 no.3
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• pp.249-265
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• 2023

Recently, the satellite industry has been paying attention to the private-led 'New Space' paradigm, which is a departure from the traditional government-led industry. The space industry, which is considered to be the next food industry, is still receiving relatively little attention in Korea compared to the global market. Therefore, the purpose of this study is to explore future signals that can help determine the market entry strategies of private companies in the domestic satellite industry. To this end, this study utilizes the theoretical background of future signal theory and the Keyword Portfolio Map method to analyze keyword potential in patent document data based on keyword growth rate and keyword occurrence frequency. In addition, news data was collected to categorize future signals into first symptom and early information, respectively. This is utilized as an interpretive indicator of how the keywords reveal their actual potential outside of patent documents. This study describes the process of data collection and analysis to explore future signals and traces the evolution of each keyword in the collected documents from a weak signal to a strong signal by specifically visualizing how it can be used through the visualization of keyword maps. The process of this research can contribute to the methodological contribution and expansion of the scope of existing research on future signals, and the results can contribute to the establishment of new industry planning and research directions in the satellite industry.

• Electronics and Telecommunications Trends
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• v.15 no.5 s.65
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• pp.103-114
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• 2000

근래에는 특히 정보통신 분야와 관련된 표준화 활동이 강화되고 있고, 여기에 표준화와 상충되는 성격을 갖고 있는 지적재산권과의 조화 문제가 하나의 중요한 이슈가 되고 있다. 표준화기구들은 표준화와 지적재산권의 조화를 위하여 지적재산권정책을 마련해 두고 있다. 이러한 지적재산권정책의 한 부문으로서 본 논문은 ITU의 저작권정책 수립 동향을 분석한 것이다. ITU 저작권정책 수립의 동기가 된 것은 매우 특정적인 기술 분야의 사건으로 말미암은 것으로서 ITU의 표준기술문서인 권고안에 컴퓨터프로그램의 소스코드를 공개할 수 밖에 없는 상황에 따른 것이다. 이에 대하여 특허권과 저작권의 근본적인 특성 차이로 인한 논란 가운데에서도 현재는 ITU의 특허정책의 기조에 맞춰진 독립적인 저작권정책을 수립하는 활동을 진행시키고 있다. 본 논문은 저작권정책의 수립을 놓고 논의되었던 여러 가지 의견들을 종합.분석함으로써 특허정책과는 다른 저작권정책이 갖는 특수성에 대하여 이해하고, 결과적으로 현재 작성되어 계속 검토되고 있는 저작권정책 초안의 내용을 분석하여 소개한다.

• Journal of Intelligence and Information Systems
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• v.28 no.4
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• pp.135-155
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• 2022

This study analyzes patent trends by deriving sub-technical fields of Organic Light-Emitting Diodes (OLEDs) industry, and analyzing technology value, originality, and diversity for each sub-technical field. To collect patent data, a set of international patent classification(IPC) codes related to OLED technology was defined, and OLED-related patents applied from 2005 to 2017 were collected using a set of IPC codes. Then, a large number of collected patent documents were classified into 12 major technologies using the Latent Dirichlet Allocation(LDA) topic model and trends for each technology were investigated. Patents related to touch sensor, module, image processing, and circuit driving showed an increasing trend, but virtual reality and user interface recently decreased, and thin film transistor, fingerprint recognition, and optical film showed a continuous trend. To compare the technological value, the number of forward citations, originality, and diversity of patents included in each technology group were investigated. From the results, image processing, user interface(UI) and user experience(UX), module, and adhesive technology with high number of forward citations, originality and diversity showed relatively high technological value. The results provide useful information in the process of establishing a company's technology strategy.

• Journal of the Korean Institute of Intelligent Systems
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• v.26 no.4
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• pp.327-333
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• 2016

An autonomous vehicle is a convergence of artificial intelligence and a vehicle which can drive itself while analyzing the real-time situation on a road without a driver. A lot of research achievements have been revealed through the media and Google is considered to be the best leading company in this field. The use of patent information which contains various information such as bibliographic data and information about technologies is a good way to find out the R&D direction of a company and develop a reasonable strategy. This study is aimed at investigating the direction to which Google focuses its R&D capabilities and establishing strategies for technology development. Google's patents about autonomous vehicles were collected and the degree of research bias was analyzed using Social Network Analysis based on citations indicating the quality of a patent. Based on the results, the strategies for technology development was eventually proposed. As a result, it was revealed that Google focused its R&D capabilities on the part of hardware control to make up for its lack of hardware-oriented technologies. As of now, Google obtained remarkable achievements, so it seems reasonable that last-movers consider cooperative research with Google.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.575-584
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• 2013

Data types used for big-data analysis are very widely, such as news, blog, SNS, papers, patents, sensed data, and etc. Particularly, the utilization of web documents offering reliable data in real time is increasing gradually. And web crawlers that collect web documents automatically have grown in importance because big-data is being used in many different fields and web data are growing exponentially every year. However, existing web crawlers can't collect whole web documents in a web site because existing web crawlers collect web documents with only URLs included in web documents collected in some web sites. Also, existing web crawlers can collect web documents collected by other web crawlers already because information about web documents collected in each web crawler isn't efficiently managed between web crawlers. Therefore, this paper proposed a distributed web crawler. To resolve the problems of existing web crawler, the proposed web crawler collects web documents by RSS of each web site and Google search API. And the web crawler provides fast crawling performance by a client-server model based on RMI and NIO that minimize network traffic. Furthermore, the web crawler extracts core content from a web document by a keyword similarity comparison on tags included in a web documents. Finally, to verify the superiority of our web crawler, we compare our web crawler with existing web crawlers in various experiments.

• Journal of the Korean Institute of Intelligent Systems
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• v.27 no.1
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• pp.72-78
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• 2017

Prior art search is a core process of technology management performed by inventors and applicants, patent examiners, and employees in the patent industry. As a result of insufficient academic research on a systematic prior art search methodology, the process has been often carried out depending on the subjective judgment of researchers. Previous studies on exploring prior arts based on semantics have also have the risk of underestimating the similarity of major prior arts due to the nature of patent documents where the same technical ideas are expressed in various terms. In this study, we propose an effective prior art search methodology based on hierarchical citation analysis, which provides a clear criterion for selecting core prior arts by calculating weights according to the relative importance of the collected patents. In order to verify the feasibility of the proposed methodology, a case study was conducted to explore the core prior art of one patent in the display field. As a result, 10 core prior art candidates were selected out of the 206 precedent patents.