• Title/Summary/Keyword: content words

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A Prediction System of User Preferences for Newly Released Items Based on Words (새로 출시되는 품목들을 위한 단어 기반의 사용자 선호도 예측 기법)

  • Choi, Yoon-Seok;Moon, Byung-Ro
    • Journal of the Korean Institute of Intelligent Systems
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    • v.16 no.2
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    • pp.156-163
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    • 2006
  • CF systems are widely used in recommendation due to the easy implementation and the outstanding performance. They have several problems such as the sparsity problem, the first-rater problem, and recommending explanation. Many studies are suggested to resolve these problems. While the influence of the sparsity problem lessens as the users' data are accumulated, but the first-rater problem is originated from the CF systems and there are a number of researches to overcome the disadvantages of CF systems based on the content-based methods. Also CF systems are black boxes, providing no explanation of working of the recommendation. In this paper we present a content-based prediction system based on the preference words, which exposes the reasoning behind a recommendation. Our system predicts user's rating of a new movie and we suggest a semiotic network-based method to solve the mismatching problem between the items. For experimental comparison, we used EachMovie and IMDb dataset.

Adjusting Weights of Single-word and Multi-word Terms for Keyphrase Extraction from Article Text

  • Kang, In-Su
    • Journal of the Korea Society of Computer and Information
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    • v.26 no.8
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    • pp.47-54
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    • 2021
  • Given a document, keyphrase extraction is to automatically extract words or phrases which topically represent the content of the document. In unsupervised keyphrase extraction approaches, candidate words or phrases are first extracted from the input document, and scores are calculated for keyphrase candidates, and final keyphrases are selected based on the scores. Regarding the computation of the scores of candidates in unsupervised keyphrase extraction, this study proposes a method of adjusting the scores of keyphrase candidates according to the types of keyphrase candidates: word-type or phrase-type. For this, type-token ratios of word-type and phrase-type candidates as well as information content of high-frequency word-type and phrase-type candidates are collected from the input document, and those values are employed in adjusting the scores of keyphrase candidates. In experiments using four keyphrase extraction evaluation datasets which were constructed for full-text articles in English, the proposed method performed better than a baseline method and comparison methods in three datasets.

Story-based Information Retrieval (스토리 기반의 정보 검색 연구)

  • You, Eun-Soon;Park, Seung-Bo
    • Journal of Intelligence and Information Systems
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    • v.19 no.4
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    • pp.81-96
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    • 2013
  • Video information retrieval has become a very important issue because of the explosive increase in video data from Web content development. Meanwhile, content-based video analysis using visual features has been the main source for video information retrieval and browsing. Content in video can be represented with content-based analysis techniques, which can extract various features from audio-visual data such as frames, shots, colors, texture, or shape. Moreover, similarity between videos can be measured through content-based analysis. However, a movie that is one of typical types of video data is organized by story as well as audio-visual data. This causes a semantic gap between significant information recognized by people and information resulting from content-based analysis, when content-based video analysis using only audio-visual data of low level is applied to information retrieval of movie. The reason for this semantic gap is that the story line for a movie is high level information, with relationships in the content that changes as the movie progresses. Information retrieval related to the story line of a movie cannot be executed by only content-based analysis techniques. A formal model is needed, which can determine relationships among movie contents, or track meaning changes, in order to accurately retrieve the story information. Recently, story-based video analysis techniques have emerged using a social network concept for story information retrieval. These approaches represent a story by using the relationships between characters in a movie, but these approaches have problems. First, they do not express dynamic changes in relationships between characters according to story development. Second, they miss profound information, such as emotions indicating the identities and psychological states of the characters. Emotion is essential to understanding a character's motivation, conflict, and resolution. Third, they do not take account of events and background that contribute to the story. As a result, this paper reviews the importance and weaknesses of previous video analysis methods ranging from content-based approaches to story analysis based on social network. Also, we suggest necessary elements, such as character, background, and events, based on narrative structures introduced in the literature. We extract characters' emotional words from the script of the movie Pretty Woman by using the hierarchical attribute of WordNet, which is an extensive English thesaurus. WordNet offers relationships between words (e.g., synonyms, hypernyms, hyponyms, antonyms). We present a method to visualize the emotional pattern of a character over time. Second, a character's inner nature must be predetermined in order to model a character arc that can depict the character's growth and development. To this end, we analyze the amount of the character's dialogue in the script and track the character's inner nature using social network concepts, such as in-degree (incoming links) and out-degree (outgoing links). Additionally, we propose a method that can track a character's inner nature by tracing indices such as degree, in-degree, and out-degree of the character network in a movie through its progression. Finally, the spatial background where characters meet and where events take place is an important element in the story. We take advantage of the movie script to extracting significant spatial background and suggest a scene map describing spatial arrangements and distances in the movie. Important places where main characters first meet or where they stay during long periods of time can be extracted through this scene map. In view of the aforementioned three elements (character, event, background), we extract a variety of information related to the story and evaluate the performance of the proposed method. We can track story information extracted over time and detect a change in the character's emotion or inner nature, spatial movement, and conflicts and resolutions in the story.

Content Analysis of Food and Nutrition unit in Middle School Textbooks of Home Economics - Focus on the National Curriculums from 1st to 2009 revised (중학교 가정(기술·가정)교과 식생활 영역의 핵심 교육내용 분석 - 제1차 교육과정부터 2009개정 교육과정의 교과서 내용을 중심으로 -)

  • Jang, Yoon-Mi;Kim, Yoo Kyeong
    • Journal of Korean Home Economics Education Association
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    • v.30 no.4
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    • pp.93-112
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    • 2018
  • We analysed the textbooks of Home Economics in middle school from 1st to 2009 curriculums to investigate the contents and the portion of Food and Nutrition section. The key words were generated by word cloud technique using text-mining, and the portion of Food and Nutrition section was presented as a ratio of the pages. The core key words of Food and Nutrition section through the curriculums were 'raw food'·'food'·'diet'. In 1st and 2nd curriculums, the main key words were related to food materials, condiments and nutrients such as 'vitamin'·'protein'. The words such as 'nutrition'·'eating'·'requirement' were newly appeared in 3rd, 'portion' in 6th, and 'diet'·'adolescence' in 7th curriculum. The mean ratio of Food and Nutrition section in Home Economics was 24.3%. While the portion was as high as 31.8% in 7th it was strikingly reduced to 15.2% in 2009th. curriculum. Besides, Food and Nutrition section was composed of 10 units of middle level category during the 2nd and 3rd curriculums, and was reduced to 2 small units with none of middle level category in 2009th curriculum. Although the contents of Food and Nutrition section has been developed and adapted to the needs of the society through the curriculums, the portion of Food and Nutrition section in Home Economics has been reduced especially in 2009th curriculum, which could raise concerns on the health of individuals and communities.

A Study on the Recognition of Population Problems of Male and Female Students using Text-mining: To Drive the Implications of Population Education (텍스트마이닝기법을 활용한 남녀 학생의 인구문제에 관한 인식 분석: 인구교육의 시사점 도출을 위하여)

  • Wang, Seok-Soon;Shim, Joon-Young
    • Journal of Korean Home Economics Education Association
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    • v.31 no.3
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    • pp.73-90
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    • 2019
  • The purpose of this study was to explore the differences in perceptions of male and female students about population problems and to draw up implications for population education. Using text mining, the report about population problem, which had written by students in population education class, were analysed. After extracting key words, semantic networks were visualized. The results were as follows. First, the high frequency words were the same for each gender. Second, key words based on frequency did not differ depending on gender. And the key words extracted by the correlation analysis and bigram were different. That is, in the semantic network of girls' words, the network of "life"-"marriage"-"birth"-"pregnancy" appeared independently, distinguishing it from male students who showed separate objective links to population problems. Therefore, it drew suggestions that male and female students should be viewed as heterogeneous groups with different cognitive structures on population problems and that the content and methods of population education should be approached differently depending on gender.

A Study on the Direction of Art Policy through Semantic Network Analysis in New Normal Era (뉴노멀(New Normal) 시대 언어네트워크 분석에 의한 예술정책 방향 연구)

  • Kim, Mi Yeon;Kwon, Byeong Woong
    • Korean Association of Arts Management
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    • no.58
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    • pp.153-177
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    • 2021
  • This study attempted to analyze language networks based on the theory of art policy in the New Normal era triggered by COVID-19 and domestic and foreign policy trends. For analysis, data containing key words of "Corona" and "Art" were collected from Google News and Web documents from March to September 2020 to extract 227 refined subject words, and the extracted subject words were analyzed as indicators of frequency and centrality of subject words through the Netminor program. In addition, visualization analysis of semantic networks has been attempted for the analysis of relationships between each topic languages. As a result of the semantic network analysis, the most frequent topic was "Corona," and "Culture and Art," "Art," "Performance," "Online" and "Support" were included in the group with the most frequencies. In the centrality analysis, "Corona" was the most popular, followed by "the era," "after," "post," "art," and "cultural arts," with high frequency, "Corona," "art," and "cultural arts" also dominated most centrality. In particular, the top-level key words in the analysis of frequency and centrality of the topic are 'online' and 'support' and 'policy'. This can be seen as indicating that the rapid rise of non-face-to-face and online content and support policies for the artistic communities are needed due to the dailyization of social distance due to COVID-19.

Development of a test of Korean Speech Intelligibility in Noise(KSPIN) using sentence materials with controlled word predictability (소음환경에서 표적단어의 예상도가 조절된 한국어의 문장검사목록개발 시안)

  • Kim, Jin-Sook;Pae, So-Yeong;Lee, Jung-Hak
    • Speech Sciences
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    • v.7 no.2
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    • pp.37-50
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    • 2000
  • This paper describes a test of everyday speech understanding ability, in which a listener's utilization of the context-situational information of speech is assessed, and is compared with the utilization of acoustic-phonetic information. The test items are sentences which are presented in a babble type of noise, and the listener response is the key word in the sentence. The key words are always two-syllabic nouns and the questioning sentences are added to obtain the responding key words. Two types of sentences are used. One is the high-predictable sentences for which the key word is somewhat predictable from the context. The other is the low-predictable sentences for which the key-word cannot be predicted from the context. Both types are included in six 40-item forms of the test, which are balanced for intelligibility, key-word familiarity and predictability, phonetic content, and length. Performance of normally hearing listeners shows significantly different functions for various signal-to-noise ratios. The potential applications of this test, particularly in the assessment of speech understanding ability in the hearing impaired, are discussed.

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Factors Contributing to Perceived Support in Pregnant Women (임부의 지각된 지지 형성에 기여하는 요인)

  • 김정애;이미라
    • Journal of Korean Academy of Nursing
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    • v.23 no.4
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    • pp.511-527
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    • 1993
  • Pregnant women need to be supported by their husbands and other family members. But little is known about the factors that contribute to perceived support in pregnant women. So this study is designed to identify the factors contributing to perceived support in pregnant women. The subjects for this study were 19 women who had had vaginal deliveries and 11 who had had cesarean sections in one hospital affiliated with a university. Data were collected during July and August 1992 through interview which lasted 20~30 minutes and used open ended questions. Each woman was interviewed once about their pregnancy experience. The data were analyzed by Van Kaam’s phenomenological analysis method and categorized accord-ing to similarity of content. Results of this study are as follows. 1) Mothers felt physically supported by having help with their activities from their husbands or other family members. Psychological stress was relieved by not having to worry about and / or giving a birth to a baby boy ; getting special attention : and hearing encouraging words. 2) Mothers felt not supported when indifference was shown by her husband and / or relatives ; when forced to do an unusual household activities ; or on hearing words stressing her responsibilities. Suggestion for further study are as follows. It is necessary to see if or not the contents of an educational program would increase the perceived support of pregnant women. This could be done by carrying out an experimental research project.

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Research Trends on Biological Education An analysis of Journal of Biological Education of England Using a Com puter Program (생물교육 연구의 동향- 영국의 Journal of Biological Education의 컴퓨터 분석)

  • Ahn, Tea-In
    • Journal of The Korean Association For Science Education
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    • v.9 no.1
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    • pp.69-74
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    • 1989
  • For the advancement of research in biological education in Korea, research trends shown in Journal of Biological Education(JBE)of England were analyzed by using a PC program(REFMENU). Papers Published in JBE between 1977 and 1987 were registered on the program with classifying keys of biological education and biology including names of authors, year, title, volume pages, and key words. Those input-date were analyzed by sorting depend-ing on either the classifying keys or the key words. Among the 361 papers 28.8% was dealing with the theory of science education. The rest dealt with biology and biological education, together. Of the six categories of biological education, the research on biological curriculum was 41 % of total and was the most. The major trends in this category was in developing the content of the curriculum. In the research of biological instruction, 37 papers dealt with the instruction theory and the rest 60 papers dealt with the tactics of Instruction. Of the 60 papers on materials in biological education, the research in developing the biological material was the most. Thus, the general research trend was far more practical aspect than the theoretical aspect of biological education. In the analysis of the papers depending on the biological categories, the one dealt with ecology was the most(26.8%). The rest papers showed almost even distribution in the 13 categories of biology. The results of this analysis was discussed by comparing with the research trends in Korea to suggest the possible future studies.

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A Classification of Elderly Housing Types Toward a Holistic Understanding (노인주택의 개념과 유형화 연구)

  • Lee, Yeunsook;Lee, Sungmi;Kim, Minsoo;Lee, Yoojin;Lee, Sunmin
    • KIEAE Journal
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    • v.7 no.1
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    • pp.81-93
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    • 2007
  • Due to increasing awareness about the risk which will be caused by fast aging of population, the importance of aging friendly environment including housing has been paid much attention both individually and socially. In this regard, recently, in Korea, diverse elderly living facilities have increased in its number. Because of little experience, however, there have not been enough holistic understanding about aging friendly housing. Accordingly, most previous literature which introduced elderly housing to Korean society have translated differently, thereby caused more confusion. To facilitate communication about aging friendly housing, clear and consistent definition of its type and comprehensive range needs to be delineated. The purpose of this study is to classify various elderly housing alternatives in architecturally understandable way. This study was proceeded by content analysis of existing literature on elderly housing environment. A comprehensive review on the concept and existing classification of elderly housing was done prior to main analysis of translated Korean words. After classifying the Korean words of definition, systematic classification which focused on two important criteria of determining physical characteristics, such as space sharing degree and intentional plannedness was delineated and suggested. This research shows the first step toward the theoretical foundation for elderly housing classification.