• Title/Summary/Keyword: Antecedent

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A Study for Antecedent Association Rules

  • Park, Hee-Chang;Cho, Kwang-Hyun
    • Journal of the Korean Data and Information Science Society
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    • v.17 no.4
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    • pp.1077-1083
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    • 2006
  • Association rule mining searches for interesting relationships among items in a given database. Association rules are frequently used by retail stores to assist in marketing, advertising, floor placement, and inventory control. There are three primary quality measures for association rule, support and confidence and lift. In this paper we present association rule mining based antecedent variables. We call these rules to antecedent association rules. An antecedent variable is a variable that occurs before the independent variable and the dependent variable.

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Effects of Affective Factors on Apparel Buying Behaviors (의류제품 구매시 감정적 요인이 구매행동에 미치는 행동)

  • 박은주;소귀숙
    • Journal of the Korean Society of Clothing and Textiles
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    • v.24 no.3
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    • pp.361-372
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    • 2000
  • The purposes of this study were to investigate consumer's antecedent mood, cognitive factors, and experienced affection, to find out the relationships among antecedent mood, cognitive factors, experienced affection, and consumer's characteristics, and to examine the discriminant variables of apparel buying behaviors. We developed an questionaire based on the previous studies and pretests. We collected data from 443 housewives living in Pusan and analyzed by Factor analysis, t-test, and Discriminant analysis. The results showed as following: 1. Antecedent mood consists of four factors and cognitive factors in store were composed of four factors. Experienced affection in store includes Pleasure, Dominant and Stimulating feeling. 2. We discovered that consumer characteristics related to the antecedent mood, the experienced affection and cognitive factors in store. 3. Purchasers didn't relate to the consumer characteristics, and related to the antecedent mood, the cognitive factors, the experienced affection in store. Experienced affection and antecedent moods appeared to be important factors in determining apparel buying behavior of consumers. Especially, Pleasure and Dominance of the experienced affection and Depression, Excitation/expectation. Worry and Self-encouraging of the antecedent moods were more important variables in determining apparel buying behavior than any other variables.

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Rainfall-Runoff Characteristics in a Jeju Stream considering Antecedent Precipitation (선행강우를 고려한 제주하천 유출특성 분석)

  • Yang, Sung-Kee;Kim, Dong-Su;Jung, Woo-Yul
    • Journal of Environmental Science International
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    • v.23 no.4
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    • pp.553-560
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    • 2014
  • The rainfall-runoff characteristics in Jeju Island significantly differ from those in inland, due to highly permeable geologic features driven by volcanic island. Streams are usually sustained in the dry conditions and thereby the rainfall-runoff characteristics changes in terms of initiating stream discharge and its types, depending highly on the antecedent precipitation. Among various the rainfall-runoff characteristics, lag time mainly used for flood warning system in river and direct runoff ratio for determining water budget to estimate groundwater recharge quantity are practically crucial. They are expected to vary accordingly with the given antecedent precipitation. This study assessed the lag time in the measured hydrograph and direct runoff ratio, which are especially in the upstream watershed having the outlet as $2^{nd}$ Dongsan bridge of Han stream, Jeju, based upon several typhoon events such as Khanun, Bolaven, Tembin, Sanba as well as a specific heavy rainfall event in August 23, 2012. As results, considering that the lag time changed a bit over the rainfall events, the averaged lag time without antecedent precipitation was around 1.5 hour, but it became increased with antecedent precipitation. Though the direct run-off ratio showed similar percentages (i.e., 23%)without antecedent precipitation, it was substantially increased up to around 45% when antecedent precipitation existed. In addition, the direct run-off ration without antecedent precipitation was also very high (43.8%), especially when there was extremely heavy rainfall event in the more than five hundreds return period such as typhoon Sanba.

A Study for Antecedent Association Rules

  • Cho, Kwang-Hyun;Park, Hee-Chang
    • 한국데이터정보과학회:학술대회논문집
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    • 2006.11a
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    • pp.51-57
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    • 2006
  • Association rule mining searches for interesting relationships among Items in a given database. Association rules are frequently used by retail stores to assist in marketing, advertising, floor placement, and inventory control. There are three primary quality measures for association rule support and confidence and lift. In this paper we present association rule mining based antecedent variables. We call these rules to antecedent association rules. An antecedent variable is a variable that occurs before the independent variable and the dependent variable. For example, in politics, a special interest group may want to support a politician who backs their cause. The group would look for a candidate who supports their views and support his election. Once in office, the politician would then conduct policy that supports the interest group.

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The Effect of Antecedent Moisture Conditions on the Contributions of Runoff Components to Stormflow in the Coniferous Forest Catchment

  • Choi, Hyung-Tae;Kim, Kyong-Ha;Lee, Choong-Hwa
    • Journal of Korean Society of Forest Science
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    • v.99 no.5
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    • pp.755-761
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    • 2010
  • This study analyzed water quality data from a coniferous forest catchment in order to quantify the contributions of runoff components to stormflow, and to understand the effects of antecedent moisture conditions within catchment on the contributions of runoff components. Hydrograph separation by the twocomponent mixing model analysis was used to partition stormflow discharge into pre-event and event components for total 10 events in 2005 and 2008. To simplify the analysis, this study used single geochemical tracer with Na+. The result shows that the average contributions of event water and pre-event water were 34.8% and 65.2% of total stormflow of all 10 events, respectively. The event water contributions for each event varied from 18.8% to 47.9%. As the results of correlation analysis between event water contributions versus some storm event characteristics, 10 day antecedent rainfall and 1 day antecedent streamflow are significantly correlated with event water contributions. These results can provide insight which will contribute to understand the importance of antecedent moisture conditions in the generation of event water, and be used basic information to stormflow generation process in forest catchment.

A Study on the Antecedent Factors Affecting Helping Professions' Cultural Competence - Focusing on Social Workers, Teachers, Nurses, and Social Work Civil Servants - (원조전문직의 문화적 역량 선행요인에 관한 연구 - 사회복지사, 교사, 간호사, 사회복지공무원을 중심으로 -)

  • Choi, So-Yun
    • Korean Journal of Social Welfare
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    • v.64 no.2
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    • pp.5-29
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    • 2012
  • This study examines the present conditions and antecedent factors affecting helping professions' cultural competence, focusing on such groups as social workers, teachers, nurses, and social work civil servants. The analysis of data shows that teachers' cultural competence is the highest, social workers, social work civil servants, and nurses are descending order. The study also found significant antecedent factors: (1)individual antecedent factors are age, education, and foreign language skill; (2)work-related antecedent factors are multicultural working hours and working duration; (3)organizational antecedent factors are education/training and organizational support. Finally, the study suggests policy directions and practical implications for enhancing cultural competence.

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Restoring Omitted Sentence Constituents in Encyclopedia Documents Using Structural SVM (Structural SVM을 이용한 백과사전 문서 내 생략 문장성분 복원)

  • Hwang, Min-Kook;Kim, Youngtae;Ra, Dongyul;Lim, Soojong;Kim, Hyunki
    • Journal of Intelligence and Information Systems
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    • v.21 no.2
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    • pp.131-150
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    • 2015
  • Omission of noun phrases for obligatory cases is a common phenomenon in sentences of Korean and Japanese, which is not observed in English. When an argument of a predicate can be filled with a noun phrase co-referential with the title, the argument is more easily omitted in Encyclopedia texts. The omitted noun phrase is called a zero anaphor or zero pronoun. Encyclopedias like Wikipedia are major source for information extraction by intelligent application systems such as information retrieval and question answering systems. However, omission of noun phrases makes the quality of information extraction poor. This paper deals with the problem of developing a system that can restore omitted noun phrases in encyclopedia documents. The problem that our system deals with is almost similar to zero anaphora resolution which is one of the important problems in natural language processing. A noun phrase existing in the text that can be used for restoration is called an antecedent. An antecedent must be co-referential with the zero anaphor. While the candidates for the antecedent are only noun phrases in the same text in case of zero anaphora resolution, the title is also a candidate in our problem. In our system, the first stage is in charge of detecting the zero anaphor. In the second stage, antecedent search is carried out by considering the candidates. If antecedent search fails, an attempt made, in the third stage, to use the title as the antecedent. The main characteristic of our system is to make use of a structural SVM for finding the antecedent. The noun phrases in the text that appear before the position of zero anaphor comprise the search space. The main technique used in the methods proposed in previous research works is to perform binary classification for all the noun phrases in the search space. The noun phrase classified to be an antecedent with highest confidence is selected as the antecedent. However, we propose in this paper that antecedent search is viewed as the problem of assigning the antecedent indicator labels to a sequence of noun phrases. In other words, sequence labeling is employed in antecedent search in the text. We are the first to suggest this idea. To perform sequence labeling, we suggest to use a structural SVM which receives a sequence of noun phrases as input and returns the sequence of labels as output. An output label takes one of two values: one indicating that the corresponding noun phrase is the antecedent and the other indicating that it is not. The structural SVM we used is based on the modified Pegasos algorithm which exploits a subgradient descent methodology used for optimization problems. To train and test our system we selected a set of Wikipedia texts and constructed the annotated corpus in which gold-standard answers are provided such as zero anaphors and their possible antecedents. Training examples are prepared using the annotated corpus and used to train the SVMs and test the system. For zero anaphor detection, sentences are parsed by a syntactic analyzer and subject or object cases omitted are identified. Thus performance of our system is dependent on that of the syntactic analyzer, which is a limitation of our system. When an antecedent is not found in the text, our system tries to use the title to restore the zero anaphor. This is based on binary classification using the regular SVM. The experiment showed that our system's performance is F1 = 68.58%. This means that state-of-the-art system can be developed with our technique. It is expected that future work that enables the system to utilize semantic information can lead to a significant performance improvement.

College Students' Decision-Making Styles : An Analysis from the Perspective of Consumer Socialization (소비자사회화 관점에서 본 대학생소비자의 의사결점 스타일)

  • Kim Young-Seen;Park Ji-Young
    • Journal of Families and Better Life
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    • v.23 no.3 s.75
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    • pp.77-91
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    • 2005
  • This study conceptualized the factors affecting college students' consumer decision-making styles from the perspective of consumer socialization. A number of antecedent variables identified by preceding studies (age, gender, place where one grew up, job experience, main reason for working, amount of allowance, family income, socio-economic status) and socialization agents such as family, peers, mass media were included in the analysis. This study extends previous studies by examining a theoretical link between the antecedent variables and socialization agents. Three hundred and forty one undergraduate students in Daejeon were participated in this study. Stepwise multiple regression md path analysis were conducted. The results of this study are as follows: 1. Six consumer decision-making styles were identified. 2. The influence of the socialization agents, especially mass media and several antecedent variables, especially gender and main reason for working, played important roles in consumer decision-making styles. 3. Several antecedent variables, especially gender and family income, were related only with the influence of socialization agents. 4. Six path-analysis models that illustrate the relationships among the antecedent variables, the socialization agents and consumer decision-making styles were proposed.

A Computational Approach to Definite NPs

  • Lee, Yong-Hun
    • Korean Journal of English Language and Linguistics
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    • v.3 no.1
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    • pp.89-108
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    • 2003
  • As pronouns are resolved with their antecedents, definite NPs may enter into the anaphora-antecedent relations with indefinite NPs. This paper is to provide faster and more efficient computational algorithms by which definite NPs are resolved effectively, For this purpose, this paper extends Chierchia's Binding Theory in Categorial Grammar, and definite NPs are resolved with their antecedents by similar algorithms that are used to reflexive resolution. In these algorithms, the relations between indefinite NP and definite NP are represented with λ-expressions, and definite NPs are resolved with their antecedent by λ-conversions.

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