• Journal of Information Processing Systems
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• v.14 no.5
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• pp.1254-1271
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• 2018

Keyphrase extraction is one of fundamental natural language processing (NLP) tools to improve many text-mining applications such as document summarization and clustering. In this paper, we propose to use two novel techniques on the top of the state-of-the-art keyphrase extraction methods. First is the anti-patterns that aim to recognize non-keyphrase candidates. The state-of-the-art methods often used the rich feature set to identify keyphrases while those rich feature set cover only some of all keyphrases because keyphrases share very few similar patterns and stylistic features while non-keyphrase candidates often share many similar patterns and stylistic features. Second one is to use the dependency graph instead of the word co-occurrence graph that could not connect two words that are syntactically related and placed far from each other in a sentence while the dependency graph can do so. In experiments, we have compared the performances with different settings of the graphs (co-occurrence and dependency), and with the existing method results. Finally, we discovered that the combination method of dependency graph and anti-patterns outperform the state-of-the-art performances.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.196-198
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• 2003

Classical lithography in semiconductor employs stepper technologies. Limits of this technology are clearly seen at structures below 100nm. Nano-imprinting lithography is a new method for generating patterns in submicron range at reasonable cost. In order to manufacture nano-imprinting lithography(NIL) equipment, several NIL manufacturers have been developing key technologies for realization of nano-imprinting process, recently. In this paper, we've been describe state-of-the-art and technology trends for nano-imprinting lithography equipments.

• The Journal of the Convergence on Culture Technology
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• v.8 no.5
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• pp.285-290
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• 2022

With China's tremendous expansion, Chinese art and art museums are also rapidly growing. The purpose of this study was to arrange the growth process of Chinese art museums from modern times to modern times, as well as to examine the present state and tendencies. Although there is a disparity between Chinese art museums and those in Western nations, it is being observed that the gap is steadily closing. Chinese art museums are rapidly expanding and adapting to match current art museum trends, both in terms of number and quality. Despite this expansion, it is suffering operating challenges owing to a lack of cash, as well as issues such as insufficient system and support, opposition to progress, and a lack of professional staff. Since research on the Chinese art museum, which has lately attracted international attention, is limited, this study can add to research on the Chinese art museum in Korea. It is feasible to comprehend the development process, present condition, and challenges of Chinese art museums via this study, and based on this, we intend to provide implications for the development of Korean art museums.

• Journal of the Korean Society for Marine Environment & Energy
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• v.7 no.3
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• pp.111-115
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• 2004

In this manuscript the characteristics of marine environmental sciences and technology was depicted in the aspect of marine biotechnology, and the prospect of Korean society of Marine Environmental Engineering were suggested. Firstly definitions and main features of marine biotechnology and marine environmental sciences and technology were mentioned, and the long-term trends of environmental sciences and technology and the role of marine biotechnology to contribute for the development of marine environmental science and technology were described. The present state of the art for domestic research activities in the fields of marine environmental science and technology was reviewed and future directions for developing the Korean Society of Marine Environmental Engineering were suggested and discussed through understanding the present problems and solving those problems.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.13 no.6
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• pp.3258-3279
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• 2019

Recently, ransomware has earned itself an infamous reputation as a force to reckon with in the cybercrime landscape. However, cybercriminals are adopting other unconventional means to seamlessly attain proceeds of cybercrime with little effort. Cybercriminals are now acquiring cryptocurrencies directly from benign Internet users without the need to extort a ransom from them, as is the case with ransomware. This paper investigates advances in the cryptovirology landscape by examining the state-of-the-art cryptoviral attacks. In our approach, we perform digital autopsy on the malware's source code and execute the different malware variants in a contained sandbox to deduce static and dynamic properties respectively. We examine three cryptoviral attack structures: browser-based crypto mining, memory resident crypto mining and cryptoviral extortion. These attack structures leave a trail of digital forensics evidence when the malware interacts with the file system and generates noise in form of network traffic when communicating with the C2 servers and crypto mining pools. The digital forensics evidence, which essentially are IOCs include network artifacts such as C2 server domains, IPs and cryptographic hash values of the downloaded files apart from the malware hash values. Such evidence can be used as seed into intrusion detection systems for mitigation purposes.

• Journal of Electrical Engineering and Technology
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• v.11 no.5
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• pp.1412-1422
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• 2016

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.27 no.3
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• pp.243-252
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• 1998

• Magazine of the Korea Concrete Institute
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• v.9 no.6
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• pp.38-46
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• 1997

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2000.08a
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• pp.85-117
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• 2000

• The magazine of the Korean Society for Advanced Composite Structures
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• v.2 no.3
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• pp.26-32
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• 2011