• Journal of the Korean Institute of Intelligent Systems
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• v.25 no.6
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• pp.592-599
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• 2015

In big data environment, we need new approach for big data analysis, because the characteristics of big data, such as volume, variety, and velocity, can analyze entire data for inferring population. But traditional methods of statistics were focused on small data called random sample extracted from population. So, the classical analyses based on statistics are not suitable to big data analysis. To solve this problem, we propose an approach to efficient big data analysis. In this paper, we consider a big data analysis using principal component analysis, which is popular method in multivariate statistics. To verify the performance of our research, we carry out diverse simulation studies.

• Information and Communications Magazine
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• v.32 no.1
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• pp.63-75
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• 2014

정보통신기술의 발전과 생산되는 데이터의 양적 증가에 따라 빅데이터에 대한 관심이 증대되고 있다. 빅데이터(Big Data)란 기존 데이터베이스의 데이터 저장 관리 분석 능력을 초과하는 다양한 형식을 가진 대량의 데이터를 의미한다. 여러 분야에서 빅데이터가 생성, 분석, 활용되고 있는데, 특히 보건의료 및 바이오 분야에서의 빅데이터 분석은 사회경제적으로 큰 영향력을 발휘할 수 있기 때문에 크게 주목 받고 있다. 본 연구에서는 보건의료 분야에서 생성되는 데이터의 특징과 빅데이터 분석 프로세스에 대해서 조사하였고, 국내 외 빅데이터 정책 및 활용사례를 분석하였다. 그리고 현재의 빅데이터 활용 장벽을 극복할 수 있는 몇 가지 전략을 제시하였다. 대량의 데이터에서 유용한 정보를 생성해내는 빅데이터 분석 기술은 보건의료 및 바이오 분야에서 국가경쟁력을 향상시키는 중요한 기반이 될 것이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.96-98
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• 2016

Recently, big data technology develop due to the rapid data generation. Thus big data analysis tools for analyzing big data has been developed. Typical big data tools are the R program, Hive, Tajo and more. But data analysis based on Matlab is still common used. And it is still used in big data analysis. In this paper, it research into big data analysis system based on the Matlab for analyzing vital signals.

• The Journal of Bigdata
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• v.7 no.2
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• pp.75-90
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• 2022

Recently, complex and sophisticated analysis of transportation is required due to changes in the socioeconomic environment and the development of bigdata technology. Especially, the revision of 3 laws including PERSONAL INFORMATION PROTECTION ACT makes it possible to combine various types of mobility data. But strengthen personal information protection makes inefficiency in utilizing mobility bigdata. In this paper, we proposed the "Virtual fusion methdology via mobility bigdata" which is a methodology for indirect data fusion for various mobility bigdata such as mobile data and transportation card data, in order to resolve legal restrictions and enable various transportation analysis. And we also analyzed regional bus passenger in Seoul capital area and Cheongju city with aforementioned methodology for verification. This methdology could analyze behavioral pattern of passenger with the MCGM(Mobility Comprehensive Genetic Map), graph with position and time, making with mobile data. Consquently, using MCGM, which is a result for indirect data fusion, makes it possible to analyze various transportation problems.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.953-954
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• 2013

Smartphone, Tablet PC users increases rapidly, the amount of data is an increasing number and their characteristics vary. Big Data field to collect vast amounts of data such that create new value by analyzing has attracted attention. In recent years, big data technology to use for marketing and product planning movement is growing. In this paper, we would like to analyze the trends of big data.

• Information and Communications Magazine
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• v.31 no.11
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• pp.67-71
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• 2014

최근 사회 각 분야에서 빅데이터를 분석하여 새로운 가치를 찾아내려는 시도가 급속히 증가하고 있다. 그러나 빅데이터를 분석하여 소기의 성과를 얻으려면 한 기관이나 기업이 자체로 보유하고 있는 데이터 뿐 아니라 외부에 있는 가치 있는 데이터가 필수적으로 필요한 경우가 대부분이다. 현재 빅데이터 이용에서 가장 어려운 것은 대용량 데이터를 다루는 하드웨어나 분석 소프트웨어 도입이 아니라 핵심적으로 필요한 외부 빅데이터를 어떻게 확보할 것인가이다. 본 고에서는 빅데이터를 효과적으로 공유하고 활용하기 위한 방안으로 오픈 데이터 인터페이스(ODI)를 제안한다. ODI를 사용함으로써 프로그램이 직접 읽을 수 있는(machine readable) 데이터 공유가 확대되고, 데이터 매쉬업이 쉬워지며, 개인의 데이터 가공 능력을 거래할 수 있는 생태계 구현이 가능해질 것이다.

• Journal of the Korean Institute of Intelligent Systems
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• v.23 no.5
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• pp.406-411
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• 2013

Big data issue has been considered in diverse fields. Also, big data learning has been required in all areas such as engineering and social science. Statistics and machine learning algorithms are representative tools for big data learning. In this paper, we study learning tools for big data and propose an efficient methodology for big data learning via legacy data to practical application. We apply our big data learning to patent analysis, because patent is one of big data. Also, we use patent analysis result for technology forecasting. To illustrate how the proposed methodology could be applied in real domain, we will retrieve patents related to big data from patent databases in the world. Using searched patent data, we perform a case study by text mining preprocessing and multiple linear regression of statistics.

• Journal of the Korean Institute of Intelligent Systems
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• v.25 no.5
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• pp.470-476
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• 2015

Big data has been used in diverse areas. For example, in computer science and sociology, there is a difference in their issues to approach big data, but they have same usage to analyze big data and imply the analysis result. So the meaningful analysis and implication of big data are needed in most areas. Statistics and machine learning provide various methods for big data analysis. In this paper, we study a process for big data analysis, and propose an efficient methodology of entire process from collecting big data to implying the result of big data analysis. In addition, patent documents have the characteristics of big data, we propose an approach to apply big data analysis to patent data, and imply the result of patent big data to build R&D strategy. To illustrate how to use our proposed methodology for real problem, we perform a case study using applied and registered patent documents retrieved from the patent databases in the world.

• Journal of the Korea Convergence Society
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• v.9 no.2
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• pp.251-257
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• 2018

As the use of big data is necessary for increasing business value, the size of the big data market is getting bigger. Accordingly, it is important to apply competitive patents in order to gain the big data market. In this study, we conducted the patent analysis based keyword network to analyze the trend of big data patents. The analysis procedure consists of big data collection and preprocessing, network construction, and network analysis. The results of the study are as follows. Most of big data patents are related to data processing and analysis, and the keywords with high degree centrality and between centrality are "analysis", "process", "information", "data", "prediction", "server", "service", and "construction". we expect that the results of this study will offer useful information in applying big data patent.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.440-442
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• 2012

데이터를 대량 생산하는 스마트 기기가 대거 등장한 요즘 빅데이터는 대용량 데이터를 분석하여 가치 있는 정보를 추출하고 이 지식을 바탕으로 위기에 대응하거나 변화를 예측하는 정보기술이다. 그러나 아직 빅데이터에 대해 분류하거나 분석하는 기술의 연구가 미비하다. 따라서 본 논문에서는 빅 데이터의 개념, 배경, 분석기술 현황에 대해 분석하고 빅 데이터 유형 분석 및 분석 기술의 향후 전망을 제시한다.