• Title/Summary/Keyword: Big6

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A Comparative Study on the Social Awareness of Metaverse in Korea and China: Using Big Data Analysis (한국과 중국의 메타버스에 관한 사회적 인식의 비교연구: 빅데이터 분석의 활용 )

  • Ki-youn Kim
    • Journal of Internet Computing and Services
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    • v.24 no.1
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    • pp.71-86
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    • 2023
  • The purpose of this exploratory study is to compare the differences in public perceptual characteristics of Korean and Chinese societies regarding the metaverse using big data analysis. Due to the environmental impact of the COVID-19 pandemic, technological progress, and the expansion of new consumer bases such as generation Z and Alpha, the world's interest in the metaverse is drawing attention, and related academic studies have been also in full swing from 2021. In particular, Korea and China have emerged as major leading countries in the metaverse industry. It is a timely research question to discover the difference in social awareness using big data accumulated in both countries at a time when the amount of mentions on the metaverse has skyrocketed. The analysis technique identifies the importance of key words by analyzing word frequency, N-gram, and TF-IDF of clean data through text mining analysis, and analyzes the density and centrality of semantic networks to determine the strength of connection between words and their semantic relevance. Python 3.9 Anaconda data science platform 3 and Textom 6 versions were used, and UCINET 6.759 analysis and visualization were performed for semantic network analysis and structural CONCOR analysis. As a result, four blocks, each of which are similar word groups, were driven. These blocks represent different perspectives that reflect the types of social perceptions of the metaverse in both countries. Studies on the metaverse are increasing, but studies on comparative research approaches between countries from a cross-cultural aspect have not yet been conducted. At this point, as a preceding study, this study will be able to provide theoretical grounds and meaningful insights to future studies.

A Study on Anomaly Signal Detection and Management Model using Big Data (빅데이터를 활용한 이상 징후 탐지 및 관리 모델 연구)

  • Kwon, Young-baek;Kim, In-seok
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.16 no.6
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    • pp.287-294
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    • 2016
  • APT attack aimed at the interruption of information and communication facilities and important information leakage of companies. it performs an attack using zero-day vulnerabilities, social engineering base on collected information, such as IT infra, business environment, information of employee, for a long period of time. Fragmentary response to cyber threats such as malware signature detection methods can not respond to sophisticated cyber-attacks, such as APT attacks. In this paper, we propose a cyber intrusion detection model for countermeasure of APT attack by utilizing heterogeneous system log into big-data. And it also utilizes that merging pattern-based detection methods and abnormality detection method.

Towards Sustainable Environmental Policy and Management in the Fourth Industrial Revolution: Evidence from Big Data Analytics

  • CHOI, Choongik;KIM, Chunil;KIM, Chulmin
    • The Journal of Asian Finance, Economics and Business
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    • v.6 no.3
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    • pp.185-192
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    • 2019
  • This study is to explore the relationship between the Fourth Industrial Revolution and the environment using the big data methodology. We scrutinize the trend of the Fourth Industrial revolution, in association with the environment, and provide implications for a more desirable future environmental policy. The results show that the Industrial Revolution has been generally perceived as negative to environment before the 2010s, while it has been widely regarded as positive after the period. It is highly expected that the Fourth Industrial Revolution will be capable of functioning as a new alternative to enhance the quality of the biophysical and social environment. This study justifies that the new wave of technological development may serve as a cure for the enhancement of the environmental quality. The positive linkage between the new technological development and the environment from this study clearly indicates that the environmental industry and environmental technologies will be key economic factors in the next-generation society. They should be of critical importance in shaping our cities into clearer and greener spaces, and people will continuously depend on the development of new environmental technologies in order to correct environmental damages.

Identification of Aroma-Active Components in Salt-Fermented Big-Eyed Herring on the Market (시판 밴댕이젓의 Aroma-Active 성분의 구명)

  • Cha, Yong-Jun;Kim, Hun;Jang, Sung-Min;Yoo, Young-Jae
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.6
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    • pp.1053-1058
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    • 1998
  • Volatile flavor compounds in salt fermented big eyed herring were analyzed by vacuum simultaneous distillation solvent extraction/gas chromatography/mass spectrometry/olfactometry and aroma extract dilution anlaysis. A total of 44 volatile compounds were detected by GC/O analysis. Of these, 23 were positively identified, and composed of aldehydes(7), esters(5), ketones(4), sulfur containing compounds (3), aromatic hydrocarbons(2), alcohol(1) and nitrogen containing compound(1). Predominant odorants (Log3FD$\geq$5) in sample were ethyl butanoate(bubble gum /sweet candy-like), 3 methylbutyl butanoate (almond /nutty), 1 octen 3 one(earthy/mushroom like), (E,E) 2,6 nonadienal(roasted wheat/grainy), dimethyl trisulfide(soy sauce /cooked cabbage like), 2 acetylpyrazine(nutty/baked potato like) and unidentified compound(RI=1867, seaweed like).

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Relationship between Egg Size and Quantitative Characteristics in Silkworm, Bombyx mori (교잡원종에 있어서 잠란의 크기가 계량형질에 미치는 영향)

  • 김충곤;노시갑
    • Journal of Sericultural and Entomological Science
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    • v.34 no.2
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    • pp.13-19
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    • 1992
  • This study was investigated the relationship between egg size and manifestation of quantitative characteristics such as larval growth, cocoon weight and cocoon shell weight etc. There was a high positive correlation between egg size and body weight of newly hatched larva. Until 2nd instar, larval growth was affected by egg size. The body weight of grown larva from big eggs were heavier on all strains except for strain El6 and the larval duration from big egg were shorter on the Japanese and the Chinese skins. These facts show that the characteristics of larval body weight and larval duration were affected more by the strain than by the egg size. The cocoon characteristics of big eggs were better in comparison than those of regular eggs.

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