Performance Evaluation of Domain-Specific Sentiment Dictionary Construction Methods for Opinion Mining

Myeong So Kim,Jong Woo Kim,Cui Jing 보안공학연구지원센터 2016 International Journal of Database Theory and Appli Vol.9 No.8

Sentiment dictionaries or lexicons are core elements for “bag-of-word” approaches of opinion mining or sentiment analysis. Rather than using general-purpose sentiment dictionaries, domain-specific sentiment lexicons can contribute to improve performance because they can reflect domain specific terms and meanings. This paper presents four domain-specific sentiment dictionary construction methods for opinion mining, and describes performance evaluation results using a practical data set. The comparison subjects of this research include SO-PMI (Semantic Orientation from Pointwise Mutual Information) and three term frequency-based methods with different term polarity measures. To evaluate the performance of four different methods, a movie review data set from a representative Internet movie community site, IMDb (Internet Movie Database) is collected using a web crawling program, and is analyzed using R programs. Based on training data set, domain specific sentiment dictionaries are constructed using four different methods, and are compared their performance of sentiment analysis. The experimental results show that domain-specific sentiment dictionaries are working better than general-purpose dictionaries except one genre, „animation‟. Also, term frequency-based approaches show better performance than SO-PMI.

Characterization of Complete Radial Displacement of Tunnel Using a Horizontal Inclinometer

Chung, So-Keul,Ryu, Dong-Woo,Jang, Won-Il,Yang, Hyung-Sik 한국암반공학회 2010 Geosystem engineering Vol.13 No.2

Measuring the displacement of a tunnel is prerequisite in evaluating the stability, which also makes it possible to understand the geological condition ahead of the tunnel face. In fact, the displacement of a tunnel occurs before, during and after the excavation. Generally, the measurement is undertaken only behind the face, which allows a certain amount of displacement, the so-called 're-measurement-displacement' The measured displacement is only a part of the total radial displacement. Therefore, the pre-measurement-displacement should be determined in order to characterize the complete radial displacement of the tunnel. A horizontal inclinometer was used to measure the degree of settlement ahead of the tunnel face at the study site, which was relatively easy to install from the other portal of the tunnel. The results from the measurement of the settlement ahead of the face enabled a complete radial displacement curve to be constructed using a nonlinear regression analysis. It was found that the crown displacement of the tunnel at the study site started to occur at a distance equivalent to three times of the tunnel diameter ahead of the tunnel face. Taking into consideration the complete displacement characteristics, the possible settlement could be about 40% of the total displacement of the tunnel. Based on the complete radial displacement, it was possible to determine the appropriate support characteristics and the time of installation.

중년기,노년기 여성들의 경험적 성생활에 관한 질적연구

이소원 ( So Won Lee ),김찬우 ( Chan Woo Kim ) 한국사회복지연구회 2015 사회복지연구 Vol.46 No.2

본 연구는 기존 연구들이 성을 기능중심 관점에서 해석함에 따라 세대 간 성인식 분절화 현상을 심화시켜왔다는 문제의식에서 비롯되었다. 따라서 세대 통합적 맥락에서 중년기와 노년기 여성들이 성을 어떻게 인식하고 있는지를 분석하고자 하였다. 이를 위해 중년기와 노년기에 속한 여성 12명을 대상으로 심층인터뷰를 실시하였으며, 질적분석방법을 통해 두세대 간 성생활 인식을 비교하였다. 연구결과 ‘학습되지 않은 성’, ‘소통의 시공간’, 성 주체간의 역동성,성생활 지속성과 관련한 삶의 경험 , 타 세대에 대한 성인식..과 같은 5개의 상위범주가 도출되었고, 각 상위범주 별 성인식의 공통점과 차이점을 발견할 수 있었다. 첫째, 공통점으로는 성생활의 첫 경험과 관련하여 생소한 경험, 당황스러움과 쾌감이 공존한다는 것, 또한 성생활을 소통의 시공간으로 인식한다는 점이다. 둘째, 세대 간 차이점으로는 중년기 여성들은 성적 욕구를 표현하고 거부할 수 있는 권리가 있음을 강조하고, 노년기 여성들은 자신의 욕구를 표현하기 어려우며 배우자의 욕구에 순응할 의무가 있다고 보았다. 셋째, 성생활 지속성과 관련한 삶의 경험으로는 중년기는 경제적 안정을 우선시하였고, 노년기는 배우자의 건강상태를 제시하였다. 마지막으로 중년기는 타 세대의 성에 대한시각이 차이가 있고, 노년기는 성이 전 세대를 아우르는 삶의 이야기라는 점을 강조하고 있었다. 이러한 연구결과는 중년기와 노년기 여성의 성적 웰빙(sexual well-being) 관련 담론을 사회복지실천에 적용할 수 있는 근거가 될 수 있다고 하겠다. The purpose of this study is to analyze perceptions on the sexual relationship of middle-aged and elderly women. Though sex has been a critical theme of human-beings over their whole lifetimes, the previous studies have distinguished sex of the aged from the one of the middle-aged by focusing mainly on the physical aspects of sexual functioning. Viewing sex as a lifetime issue, this study implemented the qualitative analysis through the in-depth retrospective interviews on 12 middle-aged or elderly women. From this analysis 5 key categories were founded including ‘uneducated sex’, ‘time and place of communication’, ‘dynamics between sex actors’, ‘sustainability of sex’, and ‘sexual perception toward other generations’. The study results are followed : First, for both aged-groups the first experience of sex was unnatural and unfamiliar experience but pleasurable, so-called ‘uneducated’. Second, Although both aged-groups perceived sex as ‘time and place of private communication with their partners, the middle-aged showed less reluctance to express their sexual desire and denial than elderly women. Third, the middle-aged women pointed economic security as the most significant factor of sustaining sexual relationship while the elderly mentioned healthy functioning. Lastly, the elderly viewed sex as a whole lifetime story. These findings provoke implications in providing relationship-based interventions to family welfare practice along with the recognition of lifetime approaches with regard to sex of women.

담화표상이론에서의 조건적 믿음

정소우 ( So-woo Chung ) 한국언어정보학회 2002 언어와 정보 Vol.6 No.1

This paper explores Discourse Representation Structures which can successfully describe the mental representations that discourse participants form when they hear so-called double access sentences. The syntactic, semantic and pragmatic characteristics of double access sentences are discussed. The analysis proposed in this paper, employing a modified version of the 'conditional beliefs' of Chung(1997), successfully explains the semantic and pragmatic characteristics of present or future tense in double access sentences as well as when and why the speaker should take or can be exempted from the responsibility for using present or future tense in double access sentences. (Sungshin Women’s University)

『앨리스』의 언어유희를 통한 전복의 미학과 주체화 -토끼굴로 내려가 새로운 언어의 세계에서 놀다-

윤소영 ( So Young Yoon ),이우학 ( Woo Hak Lee ) 건국대학교 동화와번역연구소(구 건국대학교 중원인문연구소) 2010 동화와 번역 Vol.19 No.-

??앨리스??에서 가장 특징적인 문학적, 언어적 요소는 언어유희이다. 언어유희가 발생하는 것은 소리음의 유사성으로 인해 생기는 청자의 오인이 주된 것이다. 이 현상에 착안해, 소리음(기표)의 유사성이 초래하는 새로운 기의의 대두가 색다른 기표를 발생시킨다는 것의 의미를 분석해 보고자 한다. 즉 언어유희가 발생할 때 기표가 부재하게 된다. 언어유희는 언어를 아버지와 접목시킬 때 기표의 부재가 갖는 의미를 아버지의 부재라는 주제와 결부해 살펴볼 수 있다. 언어유희를 경험하는 것은 아버지가 부재하고 있는 환상공간에서 아버지의 언어를 전복하는 놀이를 통해 새로운 언어에 대한 통제를 수행하는 것이다. 이는 주체로서 언어를 획득하는 과정이 말장난이 발생하는 상황과 관련되어 있음을 보여준다. 언어유희와 주체화의 관계를 기표의 부재라는 틀로 조망해 봄으로써 그 의미와 양상을 분석하는데 주안점을 둔다. 또한 말장난이 이루어지는 상황에서 과연 언어적 권력이 존재하고, 언어의 주도권이 이동하는지를 살펴봄과 동시에 언어적 권력의 주도권이 누구에게 있는가에 따라 어떠한 양상의 말장난이 일어날 수 있는가를 설명할 수 있다. 환상의 공간에서 만나게 되는 다양한 존재들과 소통하는 앨리스는 색다른 언어의 세계 즉 언어유희를 통해, 아버지/ 언어의 세계를 전복하는 경험을 하게 된다. 부연하면 언어를 아버지의 세계라 할 때 앨리스가 대화하고 유희하는 세계는 바로 말장난의 세상이다. 환상공간에서 펼쳐지는 언어세계는 기표의 증식과 대체 및 기의의 미끄러짐 등 언어의 놀이가 제시되고 있다. 이러한 맥락에서 본고에서는 기표의 부재와 재생산에 걸친 제반과정을 살펴봄으로써 ??앨리스??를 언어/ 아버지의 의미를 통해 분석하고자 한다. 더불어 앨리스가 경험하는 환상세계의 언어가 앨리스의 주체화에 어떠한 영향을 끼치는 가에 대해서도 살펴볼 것이다 It is well known that Alice in Wonderland(1865) by Lewis Carroll is filled with a variety of wordplay. It is a salient text to investigates the aspects and characteristics of wordplay. Among diverse functions of wordplay, this paper investigates the relationship between wordplay and subjectification. The main focus of this paper is on the meaning of absent father, the relationship between father and language, and how Alice accomplishes subjectification as a speaking subject. When wordplay occurs, speakers’ signifiers are replaced with listener’s different words with similar sound effects. In so doing, after the former signifiers became absent, the latter different signifiers are newly expressed. If wordplay includes absence of signifiers, absent signifiers can be referred to as absent father. Also, it can be seen the possibility that the spot wordplay occurs can be a place of hegemonic shift of language power between characters. In this respect, wordplay functions as a tool for subversion of language power. Diverse characters in Wonderland, such as a caterpillar, Griffon and Mad hatter, play important roles for Alice to learn new rules and order in the fantastic place through their own languages. In particular, subjectification of Alice as a speaking subject can be achieved through experiencing a variety of wordplay and managing to digest tricky phrases. In conclusion, wordplay in Wonderland is so-called play on words, thus carrying a vehicle to try to subvert father’s language in fantastic space. Like playing with words down the rabbit hole, Alice can achieve subjectification through playing with words in Wonderland.

Perspectives of Integrative Cancer Genomics in Next Generation Sequencing Era

Kwon, So-Mee,Cho, Hyun-Woo,Choi, Ji-Hye,Jee, Byul-A,Jo, Yun-A,Woo, Hyun-Goo Korea Genome Organization 2012 Genomics & informatics Vol.10 No.2

The explosive development of genomics technologies including microarrays and next generation sequencing (NGS) has provided comprehensive maps of cancer genomes, including the expression of mRNAs and microRNAs, DNA copy numbers, sequence variations, and epigenetic changes. These genome-wide profiles of the genetic aberrations could reveal the candidates for diagnostic and/or prognostic biomarkers as well as mechanistic insights into tumor development and progression. Recent efforts to establish the huge cancer genome compendium and integrative omics analyses, so-called "integromics", have extended our understanding on the cancer genome, showing its daunting complexity and heterogeneity. However, the challenges of the structured integration, sharing, and interpretation of the big omics data still remain to be resolved. Here, we review several issues raised in cancer omics data analysis, including NGS, focusing particularly on the study design and analysis strategies. This might be helpful to understand the current trends and strategies of the rapidly evolving cancer genomics research.

Analysis of the effect of oral midazolam and triazolam premedication before general anesthesia in patients with disabilities with difficulty in cooperation

Lim, Seon Woo,So, Eunsun,Yun, Hye Joo,Karm, Myong-Hwan,Chang, Juhea,Lee, Hanbin,Kim, Hyun Jeong,Seo, Kwang-Suk The Korean Dental Society of Anesthsiology 2018 Journal of Dental Anesthesia and Pain Medicine Vol.18 No.4

Background: When performing dental treatment under general anesthesia in adult patients who have difficulty cooperating due to intellectual disabilities, anesthesia induction may be difficult as well. In particular, patients who refuse to come into the dental office or sit in the dental chair may have to be forced to do so. However, for adult patients with a large physique, physical restraint may be difficult, while oral sedatives as premedication may be helpful. Here, a retrospective analysis was performed to investigate the effect of oral sedatives. Methods: A hospital-based medical information database was searched for patients who were prescribed oral midazolam or triazolam between January 2009 and December 2017. Pre-anesthesia evaluation, anesthesia, and anesthesia recovery records of all patients were analyzed, and information on disability type, reason for prescribing oral sedatives, prescribed medication and dose, cooperation level during anesthesia induction, anesthesia duration, length of recovery room stay, and complications was retrieved. Results: A total of 97 patients were identified, of whom 50 and 47 received midazolam and triazolam, respectively. The major types of disability were intellectual disabilities, autism, Down syndrome, blindness, cerebral palsy, and epilepsy. Analyses of changes in cooperation levels after drug administration showed that anesthesia induction without physical restraint was possible in 56.0% of patients in the midazolam group and in 46.8% of patients in the triazolam group (P = 0.312). Conclusions: With administration of oral midazolam or triazolam, general anesthesia induction without any physical restraint was possible in approximately 50% of patients, with no difference between the drugs.

HSS STI-CMP적용을 위한이중 패드의 최적화

서용진,박성우,김철복,정소용,이경진,김기욱,박창준 대불대학교 2002 大佛大學校大學院 硏究論文集 Vol.- No.1

As the device geometry shrinks to the deep submicron region, chemical mechanical polishing(CMP) planarization become a more essential technique of advanced ULSI process. Also, CMP process was required for the global planarization of inter-metal dielectric(IMD), inter-level dielectric(ILD) layers and interconnections with free-defect. Especially, the complete global planarization of IMD, ILD and interconnections can be achieved only with the CMP process. However, as the IMD and ILD layer gets thinner, several problems were found in the CMP process. It does have various problems such as dishing effect, torn oxide defects and nitride residues in oxide. So, it leads to severe circuit failure, which affects yield. In this paper, we studied the characteristics of polishing pad, which can apply STI-CMP process for global planarization of multilevel interconnection structure. Also, we investigated the effects of different sets of polishing pad, such as soft and hard pad. As an experimental result, hard pad showed center-fast type, and soft pad showed edge-fast type. Totally, the defect level has shown little difference, however, the counts of scratch was defected less than 2 on JR111 pad. Through the above result, we can select optimum polishing pad, so we can expect the improvement of throughput and device yield.

A Review on the Application of Nanotechnology in Food Processing and Packaging

Seong-In Cho,Yong-Rok Kim,Joon Woo Lee,Dae-Sup So,Yong-Jin Cho,Hyun Kwon Suh,Tu San Park,Seoung-Im Oh,Ji-Eun Im 한국산업식품공학회 2010 산업 식품공학 Vol.14 No.4

Currently, nanotechnology is widely applied in various industrial fields and is rapidly emerging as a promising future technology. In food industries, nanotechnology is used to enhance food quality and safety. Numerous cutting-edge studies on the advantages of nanotechnology have been conducted in the fields of food processing, food ingredients and additives, food packaging, and food engineering for optimal health. The market for these areas of research has grown steadily, and is expected to continue to do so. Because of this, R&D for nanotechnology that can be used effectively in food industries is being performed by several companies, as well as in academic research institutions around the world. This review describes the recent global R&D trends that have been in progress for two key areas: food processing and food packaging.

回轉圓筒水槽 實驗에서 나타나는 傾壓不安定波의 表面波 分析

소선섭,이우정,서정희,소은미 公州大學校 基礎科學硏究所 2003 自然科學硏究 Vol.10 No.-

본 논문은 회전삼중수조에서 경압불안정파의 표면 흐름을 분석하고 표면파의 속도에 따른 제트류의 변화와 저압성, 고압성 와동의 위치 변화를 분석하였다. 회전수 증가에 따른 이력현상을 확인할 수 있었으며, 표면파의 속도는 회전수가 증가함에 따라 감소하고 회전수의 감소함에 따라 다시 증가함을 할 수 있었다. 또한, 경압불안정파에서의 제트류는 회전수의 증가에 따라 제트의 폭이 감소한다. This thesis is concerned with researching surface flow of Baroclinic Wave in rotating annulus and examining change of jet stream, location change of vortices in low-pressure and high-pressure according to speed of surface wave. I am certain of hysteresis as an increase of number of rotations. And I have observed that speed of surface wave is on the decrease as an increase of number of rotations is on the increase again as the decrease. I know that width of jet stream is on the decrease as an increase of number of rotations in Flow of Baroclinic Wave.