Subjective perception patterns of online reviews: A comparison of utilitarian and hedonic values

Ham, Juyeon,Lee, Kyungmin,Kim, Taekyung,Koo, Chulmo Elsevier 2019 Information processing & management Vol.56 No.4

<P><B>Abstract</B></P> <P>Online reviews are very important for the decision making of tourists, and such importance continues to grow as these reviews affect not only the tourism industry but also the operators of review platforms. Therefore, those factors that affect the perceived value of online reviews need to be investigated. Although the criteria and viewpoints for judging the value of these reviews may differ from one person to another, the existing studies on online reviews have not considered such differences. Therefore, this study aims to identify the differences in the patterns of the perceptions toward the utilitarian and hedonic values of online reviews. Building on a theoretical discussion of how information is processed during the decision making of individuals, this study develops a conceptual model that comprises three factors (i.e., the heuristic-reviewer, heuristic-review, and systematic-review factors) related to online reviews. For the data analysis, 2616 cases collected from Yelp.com were analyzed by using the fuzzy-set qualitative comparative analysis approach. The four patterns of perceptions toward the utilitarian value of online reviews (i.e., administrative reader, analytic reader, synthetic reader, and collaborative reader patterns) were derived. The three patterns of perceptions toward the hedonic value of these reviews (i.e., administrative-expertise-, synthetic-reviewer-, and nurturer-authenticity-focused readers) were also extracted. The results revealed some differences among those factors that influence the recognition of the utilitarian and hedonic values of online reviews.</P> <P><B>Highlights</B></P> <P> <UL> <LI> This study aims to identify the differences in the patterns of the perceptions toward the utilitarian and hedonic values of online reviews. </LI> <LI> This study develops a conceptual model that comprises three factors related to online reviews. </LI> <LI> 2,616 cases collected from Yelp.com were analyzed by using the fsQCA approach. </LI> <LI> The four patterns of perceptions toward the utilitarian value of online reviews were derived by applying Hermann's brain dominance model. </LI> <LI> The three patterns of perceptions toward the hedonic value of online reviews were extracted. </LI> </UL> </P>

Recognizing Comparative Sentences from Chinese Review Texts

Wei Wang,TieJun Zhao,GuoDong Xin,YongDong Xu 보안공학연구지원센터 2014 International Journal of Database Theory and Appli Vol.7 No.5

Comparisons play an important role in making decisions by referring to the comparative opinions of opinion holders in earlier customer reviews. Recognizing comparative sentences from review texts contributes to opinion mining and information recommendation. Our objective is to automatically recognize comparative sentences from Chinese text documents. In this paper, an effective approach is proposed based on comparative patterns to recognize comparative sentences in Chinese. Our experiments on customer-generated product reviews show that the proposed approach is effective.

온라인 제품리뷰의 분석을 위한 오피니언 마이닝 기법의 적용

진영택 한국지식정보기술학회 2021 한국지식정보기술학회 논문지 Vol.16 No.1

Understanding product characteristics and opinions from product reviews provided in news, reviews, and discussions on the web site help individuals make decisions about purchasing products. Companies need to improve product quality and design efficient marketing strategies. For this, opinion mining is required to find and analyze people's opinions from unstructured text reviews. Opinion mining aims to find people's opinions and feelings about certain products and services. It includes a variety of methods and techniques ranging from finding simple opinions on products or services to comparative opinions for products. In particular, comparative opinions provide practical information compared to simple opinions and emotions because people with experiences related to the product or service to be compared mainly provide specific information on the strengths, weaknesses, and differences of the product or service. However, it is not easy to classify comparison opinions from user reviews, and there are many techniques for this. In this study, we present the comparative results of applying various machine learning techniques to specific product reviews for comparative opinion mining. Through this, it is intended to help understand various techniques for classifying comparative opinions and extracting useful information such as the preference of product attributes.

부산대학교 「법학연구」의 역사 - 학술지로서의 내용적 특성과 통계분석을 중심으로 -

이기춘 부산대학교 법학연구소 2019 법학연구 Vol.60 No.2

The “Law Review” of the Institute of Law Studies in Pusan National University was published in May 1956 for the first time and it`s vol. 100 will be published in May 2019. There are 1,102 jurisprudential papers to be published, and 39 journals in the 1950s, 58 journals in the 1960s, 50 journals in the 1970s, 118 journals in the 1980s, 133 journals in the 1990s, 255 journals in the 2000s, 449 in the 2010s were published. It can be seen that the papers of traditional major subjects and modern elective subjects are balanced and published in various ways. Although case studies are disappointing, the comparative law dissertation also has diversity and expertise overall. “Law Review” shows strength in the field of commercial law: maritime and insurance law, financial law area, comparative law, Chinese law, and basic law. However, it is also true that “Law Review” shows problems such as the biased state of comparative law papers, the small number of case analysis papers, the poor environment law field, and the unsystematicization of the professional field of legal practitioners. But “Law Review” is a steady paper contribution by scholars of traditional major and modern elective subjects, with basic expertise, diversity and balance. And “Law Review” shows modern opportunities such as characterization, Chinese law/Islam law, expansion of legal practice, modern IT law, medical law, consumer law, science and technology law, convergence law, and development of education law/university law. The Busan National University Law Institute should make efforts to secure papers on tax laws, regional laws, Anglo-American law and case analysis. Finally, self-control and self-monitoring should be performed constantly to enhance research ethics.

Exploiting Machine Learning for Comparative Sentences Extraction

보안공학연구지원센터(IJHIT) 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.3

This paper studies the problem of extracting Chinese comparative sentences from user reviews, which is a problem of text classification in the level of sentence. This paper first deals with the class skewed problem of review data, and then builds a SVM (support vector machine) model to classify comparative and non-comparative sentences into different groups on a balanced dataset. Various linguistic and statistical features are introduced to characterize a sentence. Experiments were conducted on user-generated product reviews. As a result, our experiments show significant performance, an overall F-score of 85.87%.

Work-related Musculoskeletal Disorders in Korea and Japan

Eun-A Kim,Minori Nakata 대한직업환경의학회 2014 대한직업환경의학회지 Vol.26 No.-

Objectives: Work related Musculoskeletal disorders (WMSD) is one of the most important problem in occupational health system of Korea and Japan, where the OHS system developed in similar socio-cultural environment. This study compared WMSD in Korea and Japan to review similarities and differences in their historical background, and development of prevention policies. Methods: Scientific articles, government reports, and related official and non-official statistics on WMSD since the 1960s in Japan and Korea were reviewed. Results: The historical background and basic structure of the compensation system in Korea and Japan largely overlapped. The issuing of WMSD in both countries appeared as upper limb disorder (ULD), named occupational cervicobrachial diseases (OCD) in Japan, and neck-shoulder-arm syndrome (NSA) 30 years later in Korea, following the change from an industrial structure to automated office work. Both countries developed manuals for diagnosis, guidelines for workplace management, and prevention policies. At present, compensation cases per covered insurers for WMSD are higher in Korea than in Japan, due to the social welfare system and cultural environment. Prevention policies in Korea are enforced more strongly with punitive measures than in Japan. In contrast, the Japanese system requires autonomous effort toward risk control and management, focusing on specific risky processes. Conclusions: WMSD in Korea and Japan have a similar history of identification and compensation structure, yet different compensation proportions per covered insurer and prevention policies. Follow-up study with international cooperation is necessary to improve both systems.

Improving the Performance of Text Categorization Models used for the Selection of High Quality Articles

김승희,최진욱 대한의료정보학회 2012 Healthcare Informatics Research Vol.18 No.1

Objectives: Machine learning systems can considerably reduce the time and effort needed by experts to perform new systematic reviews (SRs). This study investigates categorization models, which are trained on a combination of included and commonly excluded articles, which can improve performance by identifying high quality articles for new procedures or drug SRs. Methods: Test collections were built using the annotated reference files from 19 procedure and 15 drug systematic reviews. The classification models, using a support vector machine, were trained by the combined even data of other topics, excepting the desired topic. This approach was compared to the combination of included and commonly excluded articles with the combination of included and excluded articles. Accuracy was used for the measure of comparison. Results: On average, the performance was improved by about 15% in the procedure topics and 11% in the drug topics when the classification models trained on the combination of articles included and commonly excluded, were used. The system using the combination of included and commonly excluded articles performed better than the combination of included and excluded articles in all of the procedure topics. Conclusions: Automatically rigorous article classification using machine learning can reduce the workload of experts when they perform systematic reviews when the topic-specific data are scarce. In particular, when the combination of included and commonly excluded articles is used, this system will be more effective.

미국 형사소송법상 인신보호영장(a Writ of Habeas Corpus)제도에 대한 연구

이상현(Lee, Sang-Hyun) 숭실대학교 법학연구소 2013 法學論叢 Vol.30 No.-

미국법상 인신보호영장(a writ of habeas corpus)제도는 제헌헌법에 규정된 이래 미국법 체계 내에서 구속적부심사적 기능, 헌법재판적 기능 및 형사소송법상 재심적 기능을 수행해 왔다. 그러나, 이러한 인신보호영장에 대한 비교법적 연구가 집적되지 못해 영미법상 인신보호영장의 수 세기에 걸친 발전에 대해 우리나라에는 별로 소개된 바가 없다. 본 논문은 영국의 대헌장에서 출발한 이 제도가 미국법에서 변형ㆍ발전되어 온 법제사를 조사한다. 이러한 검토를 근거로 주법원 판결에 대한 헌법재판적 기능 뿐만 아니라 형사 유죄판결에 대한 재심적 기능을 수행하는 본 제도의 법적 성질, 요건 및 절차를 구체적으로 조사하였다. 이러한 미국법상 인신보호영장제도에 대한 연구는 헌법재판 뿐만 아니라 우리나라 형사소송법상 재심제도에도 시사점을 보여준다. 최근 재심사유 중 증거의 신규성에 대해 제한적 판단기준을 제시한 대법원 전원합의체결정은 미국법상 인신보호영장제도의 현재의 상황과 유사한 양상을 보인다. 향후 미국법상인신보호영장에 대한 깊이 있는 조사는 헌법재판과 형사소송법상 재심제도의 입법 및 사법정책의 논의에 소중한 자료가 될 것이다. Habeas corpus proceeding, functioning as institution for new trial as well as constitutional review in American law has rarely been a topic of comparative legal research in Korea. This research investigates the legal history of development of a write of habeas corpus in Anglo-American law. It dates back to Magna Carta in the early 12th century, was adopted in American Constitution and legislations, and has experienced various transformations of the characteristics and the scope of its application. With focus on the role of retrial of habeas corpus proceeding in American criminal procedure, this study investigates major legal characteristics of elements and procedure of the proceeding. Based upon the study, this research the proceeding to retrial in Korean criminal procedure. Finally, this research demonstrates that since 1970s the coverage of habeas corpus has been growing narrower than before. A ruling of the Supreme Court of Korea, which limits the retrial based on discovering new fact, is commensurate to the current status quo of habeas corpus proceeding after the enactment of Anti-terrorism Effective Death Penalty Act in American. Further in-depth research on habeas corpus proceeding in American law will provide Korean experts with helpful insight for making wise legislative and judicial policies in such areas as new trial in criminal procedure law as well as constitutional review.

벼 흰잎마름병균(Xanthomonas oryzae pv. oryzae)의 병원성 유전자의 분자유전학적 연구현황 및 비교유전체 분석

강희완,박영진,이병무,Kang, Hee-Wan,Park, Young-Jin,Lee, Byeong-Moo 한국미생물학회 2008 미생물학회지 Vol.44 No.1

본 논문은 벼 흰 잎마름병균인 Xanthomonas oryzae pv. oryzae(Xoo)의 병원성 유전자의 분자유전학적 연구현황을 기술하고자 한다. 또한 국내 고유 벼 흰 잎마름병균 KACC10331의 유전체해독 정보를 기반으로 다른 Xanthomonas의 유전체와 비교 분석함으로써, Xoo의 주요 병원성 유전자의 분자구조를 구명하고자 한다. 이를 통해 Xoo 고유 병원성 유전자 탐색 및 기능 해석을 위한 기초자료를 제공하는데 목적이 있다. Xoo 유전체에는 5개 과(family)에 속하는 9 type의 Insertion sequence(IS)가 611 copy로 존재하고 있으며, 주로 병원성 관련 유전자군 주위에 많이 분포하고 있는 것으로 나타났다. 현재까지 연구가 수행된 주요 병원성 관련 유전자인 hypersensitive response and pathogenicity (hrp) 유전자, extracellular polysaccharide (EPS) 유전자, extracellular enzyme 유전자, lipopolysaccharides (LPS) 유전자, 그리고 avilulence 유전자의 분자유전학적 연구현황을 기술하였다. Xanthomonas oryzae pv. oryzae (Xoo) is the causal agent of bacterial blight on rice. In this paper, current status on molecular genetic study of major virulence genes, hypersensitive response and pathogenicity (hrp), productions of extracellular polysaccharide (EPS), extracellular enzymes and lipopolysaccharides (LPS), avr genes were reviewed. The IS elements with 611 copies including 133 ORF IS were inserted in various regions of the Xoo genome and in expecially regions franking virulence genes. Whole genome sequence of X. oryzae pv. oryzae KACC10331 were used for defining genetic organization of the virulence genes. Futhermore, the virulence genes in Xoo genome were compared to those of other Xanthomonas species in Blast GenBank data base.

뷰티요가(Beauty Yoga)와 요가(Yoga)의 비교문헌고찰

손은선(Eun-Sun Son),윤천성(Chun-Sung Youn) 한국뷰티산업학회 2020 뷰티산업연구 Vol.14 No.1

뷰티요가(Beauty Yoga)와 요가(Yoga)는 아유르베다를 기본으로 차이점이 있으나, 맥락에서는 많은 유사점이 있으며 비교문헌고찰을 통한 뷰티요가(Beauty Yoga)의 활성화 방안을 제시하고자 한다. 뷰티요가(Beauty Yoga)와 요가(Yoga)의 유사점은 아유르베다의 생활철학을 기본 바탕으로 하고 있다. 아유르베다는 인도의 오랜 역사를 가진 철학으로 몸과 마음, 영혼까지 아우르는 3-도샤 이론을 가지고 있으며, 질병 치유와 건강 장수에 대한 철학적, 의학적 지식을 체계화한 생명과학이다. 뷰티요가(Beauty Yoga)는 치유법에 있어서 동작, 호흡, 명상으로 정신과 육체의 조절에 주안점을 주로 사용하고 있으며, 음양오행론 경락의 14경맥 흐름과 신체적, 정신적으로 기 흐름에 따라 순환을 돕는 신개념의 치유법이다. 요가(Yoga)는 요가의 종류에 따라 접근 방법의 차이가 있다. 음양오행론은 동양 고대의 자연관으로, 사람과 자연의 현상을 기의 변화와 움직임으로 관찰하는 우주관의 기원으로써 기본적으로 음과 양의 조화로 파생된 오행(木, 火, 土, 金, 水)에 의해 우주와 인간 생활의 모든 현상과 생성 소멸을 해석하는 사상이다. 아유르베다 체질과 오행체질은 유사점이 있다.(배경숙.이거룡, 2018) 따라서 본 연구의 목적은 뷰티요가(Beauty Yoga)와 요가(Yoga)의 유사점과 차이점을 찾고 뷰티요가를 삶에 응용하여 적용한다면 개인건강과 활성화에 도움을 줄 수 있다고 기대되므로 이론적 기초 자료로 가치가 있다고 사료된다. There are some differences between beauty yoga and yoga according to cosmology. In point of fact, many similarities are also found under the same context. This study attempted to suggest a way to promote beauty yoga through a comparative literature review. In terms of similarities between beauty yoga andyog a, they are basically performedba sedon the living philosophy of Ayurveda. Ayurveda, an Indian philosophy with a long history, contains the theory of tridosha, which concerns the body, mind and even soul. It is the science of life, which has systematizedp hilosophical principles andm edical knowledge regarding disease healing and healthy longevity. In terms of curatives, beauty yoga focuses on body-mind control through breathing, gesture and meditation. It is a brand-new healing methodwh ich promotes energy circulation according to 14 gyeongmaek (meridians) and physical andm ental energy flow under the Yin-Yang andF ive Element Theories. In yoga, there are differences in approaches according to type. The Yin-Yang and Five Element Theories are the oriental ancient view of nature. According to this theory, all phenomena of the universe andh uman lives andc reation ande xtinction are interpretedwi th ohaeng (five elements: tree, water, fire, metal/gold, earth) under the yin-yang harmony as the origin of the view of the universe to observe the phenomena of humans andnatu re through the changes andm ovements of gi (energy). Ayurveda and the five-element constitution have similarities (Bae Gyeong-sook andLe e Geo-ryong, 2018). This study aimedt o find both similarities and differences between beauty yoga andyo ga anda pply them to daily life as a way to improve public health. Therefore, it is reasonable to conclude that the study results are valuable as basic data for such theories.