• Title/Summary/Keyword: focused

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Ontology-Based Focused Crawling Combined with Neural Network (신경망을 적용한 온톨로지 기반의 Focused Crawling)

  • Zheng, Hai-Tao;Kang, Bo-Young;Namgoong, Hyun;Kim, Hong-Gee
    • Annual Conference on Human and Language Technology
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    • 2007.10a
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    • pp.128-133
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    • 2007
  • Focused crawling은 검색시스템의 구축을 위한 웹 문서 수집단계에서, 미리 정의된 토픽 집합들과 관련성을 가지는 웹 문서를 수집하기 위하여 제안되었다. 이러한 focused crawling 연구에서 보다 효과적인 웹 문서 수집을 위해 주어진 토픽에 대한 양질의 배경지식을 제공할 수 있도록 온톨로지가 활발히 활용되어왔다. 그러나 기존의 온톨로지 기반 focused crawling 연구는 토픽과 웹 문서 간의 관련성 측정을 위하여, 주어진 토픽과 관련있는 온톨로지 내 각 개념들에 직관에 의존한 가중치를 부여하여 활용하였다. 하지만 이러한 직관에 의존한 가중치부여 기법은 안정된 수집결과를 도출할 수 있는 최적화된 가중치 값을 얻기가 힘든 한계가 있다. 따라서 본 논문에서는 이러한 개념에 대한 가중치가 학습에 의하여 자동으로 결정되도록, 인공신경망을 적용한 온톨로지 기반 focused crawling 기법을 제안한다. 웹 상에서 제안된 시스템의 성능을 실험한 결과 기존의 온톨로지 기반 수집 기법에 비하여 보다 향상된 결과를 보임을 알 수 있었다.

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A Study of Fundamental Frequency for Focused Word Spotting in Spoken Korean (한국어 발화음성에서 중점단어 탐색을 위한 기본주파수에 대한 연구)

  • Kwon, Soon-Il;Park, Ji-Hyung;Park, Neung-Soo
    • The KIPS Transactions:PartB
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    • v.15B no.6
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    • pp.595-602
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    • 2008
  • The focused word of each sentence is a help in recognizing and understanding spoken Korean. To find the method of focused word spotting at spoken speech signal, we made an analysis of the average and variance of Fundamental Frequency and the average energy extracted from a focused word and the other words in a sentence by experiments with the speech data from 100 spoken sentences. The result showed that focused words have either higher relative average F0 or higher relative variances of F0 than other words. Our findings are to make a contribution to getting prosodic characteristics of spoken Korean and keyword extraction based on natural language processing.

Mediating effect of family cohesion on the relations between the stress cognition of adolescents of single parent families and problem-focused coping behavior (한부모가족 청소년이 인지하는 스트레스와 문제해결적 대처행동 관계에서 가족응집력의 매개효과)

  • Park, Kyeong Won;Kim, Kyeong Shin
    • Journal of Family Relations
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    • v.23 no.2
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    • pp.29-45
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    • 2018
  • Objectives: The purposes of this study were to investigate the influence of stress cognition of adolescents in a single-parent family on their problem-focused coping behaviors, and to verify the mediating effect of family cohesion between stress cognition and their problem-focused coping behaviors. Method: A survey was conducted on middle school students in Gwangju, and the responses of 404 participants were used in the analysis. The data were analyzed using the SPSS 21.0 program. Results: The results of this study were as follows: First, stress cognition had a negative influence on the problem-focused coping behaviors of the adolescents of single-parent family. Second, family cohesion completely mediated the effects of stress cognition on this problem-focused coping behaviors. Conclusions: This study suggests that it is necessary to improve the function of family cohesion in order to improve the problem-focused coping behaviors of adolescents in single-parent families.

Relationship among Emotional Labor, Emotional Leadership and Burnout in Emergency Room Nurses - Comparison of employee-focused emotional labor and job-focused emotional labor - (응급실 간호사의 감정노동과 감성리더십, 소진의 관계 -직원중심 감정노동과 직무중심 감정노동 비교-)

  • Eo, Yong-Sook;Kim, Myo-Sung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.9
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    • pp.136-145
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    • 2017
  • This study aimed to identify the relationship among employee-focused and job-focused emotional labor, emotional leadership, and burnout among emergency room nurses. Data were collected from 168 emergency nurses working at general hospitals in one metropolitan city and analyzed by descriptive statistics, t-test, ANOVA, and Pearson's correlation coefficient using the SPSS/WIN program. According to the results, the mean scores of the employee-focused emotional labor scale were 3.51 points for superficial acting and 3.26 for deep acting. The mean score of the job-focused scale was 3.73 for frequency of emotional surface, 3.36 for duration of interpersonal interactions, and 3.46 for variety of emotional expressions. The mean score of the emotional leadership scale was 3.57, and the mean scores of the burnout were 4.59 for emotional exhaustion, 4.13 for depersonalization, and 3.60 for diminished personal accomplishment. Job-focused emotional labor scores were higher than employee-focused scores. Superficial acting and frequency of interactions in emotional labor were the most frequently performed by emergency nurses. Employee-focused and job-focused emotional labor showed a significantly partial correlation with emotional leadership and burnout. Based on the results, future research needs to develop effective strategies for managing emotional labor and burnout of nurses working in emergency rooms.

A Study on Consumers' regulatory focus as a determinant of perceived value of online shopping mall VMD (온라인 쇼핑몰VMD에 대한 지각된 가치의 영향요인으로 소비자 조절초점 역할에 관한 연구)

  • Suh, Yonghan
    • Management & Information Systems Review
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    • v.33 no.5
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    • pp.213-232
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    • 2014
  • Sensitivity to online store stimuli (VMD attributes) and response (online store loyalty) may depend upon consumers' regulatory focus (emotional state). In other words, consumers' sensitivity to online store atmosphere and consequent store loyalty can be influenced by the match between their regulatory focus (promotion focused vs. prevention focused) and the type of the online store VMD benefits Study 1 results indicate consumers have a different evaluation about online store atmosphere depending on their regulatory focus. Promotion-focused consumers were significantly more sensitive to visual appeal and entertainment attributes of online store atmospherics than prevention-focused consumers. Conversely, prevention-focused consumers were significantly more sensitive to security and privacy attributes of online store, than promotion-focused consumers. Study 2 results indicate for promotion-focused shoppers, hedonic value toward online store atmosphere was associated with greater online store loyalty. In contrast, prevention-focused shoppers were influenced more by the utilitarian attributes on online store loyalty than promotion-focused shoppers. The current findings indicate that shoppers with promotion-focused are more easily persuaded by visual and entertainment-oriented online store cues. Conversely, shoppers with prevention-focus are more easily persuaded by safety and privacy-oriented online store cues.

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A Study on Effectiveness and Preference of e-Learning Contents Delivery Types in Learning Domains (학습목표영역에 따른 이러닝 컨텐츠 전달 유형별 학습 효과성과 선호도에 대한 연구)

  • Yu, Byeong-Min;Lee, Byoung-Joon
    • Journal of Agricultural Extension & Community Development
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    • v.21 no.4
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    • pp.1029-1060
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    • 2014
  • The purpose of this study are to figure out whether there are the meaningful differences between learner's learning achievements and contents preference in accordance with the delivery strategies (instructor-focused model, learner-focused model) of learning materials suggested by Bloom in web-based instruction, and to suggest the various options on the contents delivery strategies to improve the learner's learning achievements of each learning domains. Learning domains were divided by the cognitive domain, the affective domain, and the psychomotor domain. The result of research with 182 learners showed that learner-focused model in the cognitive domain caused higher learning achievements and preference than instructor-focused model. And instructor-focused model in the psychomotor domain compared with learner-focused model caused higher learning achievements and preference. However, there were less meaningful differences in the affective domain. In other words, learner-focused model is appropriate to the feature of the cognitive domain while instructor-focused model is appropriate to the feature of the psychomotor domain. The results suggest that delivery strategies should be chosen by domains of learning contents in order to improve learner's learning achievements in web-based instruction. Learner-focused delivery strategies in the cognitive domain and instructor-focused delivery strategies in the psychomotor domain need to be considered positively. Delivery strategies should be studied and developed in order to lead higher learning achievements and preference.

The Interaction Roles of Ambient Pride Type and Advertisement Type on Product Evaluation (프라이드의 유형과 광고유형의 광고제품평가에 대한 상호작용효과)

  • Choi, Nak-Hwan
    • Journal of Distribution Science
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    • v.13 no.5
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    • pp.61-70
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    • 2015
  • Purpose - This study investigates whether the effectiveness of self trait-advertisement versus communion-focused advertisement on product evaluations depends on a type of pride felt as ambient emotion. It also explores whether the mediating roles of cognitive and affective response to the effect of the advertisement type on product evaluation are moderated by types of pride such as hubristic pride or authentic pride. Research Design, Data, and Methodology - This research uses a restaurant service as the experimental object and employs a 2 (pride type: hubristic pride vs. authentic pride) × 2 (advertisement type: self trait-focused advertisement versus communion-focused advertisement) between-subjects design, with cognitive response and affective response as within-subject. Each experimental group consisted of 40 undergraduate students assigned to participate in the experiment. One questionnaire from the authentic pride and self-trait focused advertisement group and two questionnaires from the hubristic pride and communion-focused advertisement group were removed due to answer errors, resulting in a participant number of 157. The author conducts a 2 (pride type: hubristic pride vs. authentic pride) × 2 (advertisement type: self trait-focused advertisement versus communion-focused advertisement) ANOVA on advertised product evaluations, and to better understand the interaction effects, also conducts separate analysis of the hubristic and the authentic pride groups. Additionally, the study conducts mediated moderation analysis to check the mediation role difference of the cognitive response and the affective response to each advertisement on the interaction effects on product evaluations between the hubristic and the authentic pride groups. Results - The findings indicate that participants in the hubristic pride group more positively evaluate the product in self-trait focused advertisement, whereas participants in the authentic pride group more positively evaluate the product in communion-focused advertisements. In addition, the mediating role of cognitive response on the positive interaction effect of advertisement type and pride type on product evaluation is partially moderated by the pride type. However, the mediating role of affective response on the positive interaction effect of advertisement type and pride type on the product evaluation is not moderated by the pride type. Conclusions - The results of this study contribute to advertisement theory development by exploring interaction effects of ambient pride type and advertisement type on product evaluation, as well as to the theory of consumer behavior by exploring how pride type moderates the mediating roles of cognitive response on the positive interaction effect of advertisement type and pride type on product evaluation. From the perspective of the current research, advertisers should research what kinds of events consumers have experienced to increase the effectiveness of their advertisements, and use self-trait advertisements when consumers are grouped under ambient hubristic pride, and use communion-focused advertisements when consumers are grouped under ambient authentic pride. However, future research is necessary to discover the reasons why the mediating role of affective response to advertisements in the interaction effects of pride type and advertisement type on product evaluation is not moderated by pride type.

Roles of Consumer's Social Relationship and Perceived Justice Type on Service Recovery Satisfaction (서비스실패의 회복방안에서 지각된 공정성유형의 회복만족도효과에서 소비자의 사회적 관계의 역할)

  • Choi, Nak-Hwan;Park, Su-Min;Lim, Ah-Young
    • The Journal of Industrial Distribution & Business
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    • v.9 no.1
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    • pp.77-88
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    • 2018
  • Purpose - Past research has not given much attention to the roles of consumers' social relationship type in the effects of justice type of service failure recovery alternatives on their satisfaction to the alternative exposed to them. Current research aimed at exploring the moderation role of consumers' social relationship central versus peripheral in the effects of justice types of service failure recovery alternatives on the recovery satisfaction, and this research also explored whether the level of satisfaction to interaction justice-focused alternative are significantly different between the two, their social relationship central and peripheral relationship. Research design, data, and methodology - 2(social relationship central versus peripheral) between-subjects design was employed. 50 participants for each experimental group there were. Participants of each group took forceful steps in choosing one between the procedural justice-focused alternative and the distribution justice-focused alternative. χ2-analysis was used to verify that the number of choosing each alternative becomes different between the two experimental groups, and a one way ANOVA was used to verify that the extent to which participants are satisfied to the alternative chosen by them becomes different between the two groups. Results - The number of participants choosing procedural justice-focused alternative at the group of social relationship central was larger than that at the group of social relationship peripheral, whereas the number of participants choosing distribution justice-focused alternative at the group of social relationship peripheral was larger than that at the group of social relationship central. And the level of satisfaction to procedural justice-focused alternative at the group of social relationship central was higher than that at the group of social relationship peripheral, whereas the level of satisfaction to distribution justice-focused alternative at the group of social relationship peripheral was higher than that at the group of social relationship central. In addition, the level of satisfaction to interaction justice-focused alternative was not significantly different between the two groups. Conclusions - Marketers should give attention to the type of justice when developing alternatives by which consumers' service failure can be recovered. They should suggest procedural justice-focused alternative to consumers under social relationship central, whereas they should develop distribution justice-focused alternative for consumers under social relationship peripheral. And in the process of recovering service failure they also should focus on interaction justice.

A Study on the Preferable Learning Strategies in Science Learning of the Secondary School Students (과학 학습시 중 . 고등학생들이 선호하는 학습 전략에 관한 연구)

  • Kim, Jung-Seok;Kwon, Hye-Lyun;Chang, Nam-Kee
    • Journal of The Korean Association For Science Education
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    • v.17 no.1
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    • pp.103-113
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    • 1997
  • The purpose of this study was to identify the preferable learning strategies in science learning and to find out the relationship between these strategies and scientific achievement of students in the secondary school. The learning strategies were tested with two categories, self-focused and work-focused learning. The four types of learning strategies in science learning were analyzed, and they were named to organization, monitoring, elaboration and memorization strategies, which were defined by GSSS test. In the self-focused learning, the organization and monitoring strategies were preferred to the elaboration and memorization strategies. Middle school students had a preference for memorization strategy (p=0.000), whereas high school students had a preference for monitoring strategy (p=0.015). In the case of organization strategy, female groups were preferable to male groups (p=0.027). In the second form of learning types, work-focused learning, the memorization strategy was the same preference as organization and monitoring strategies in the secondary school students, especially the male groups of high school students. The preference of elaboration strategy was relative lower compared with that of self-focused learning type. Middle school students had a preference for monitoring strategy (p=0.001), whereas high school students had a preference for elaboration strategy (p=0.001). The difference of each preference between male and female groups was not shown. From the analysis of correlation between learning strategy and scientific achievement, it showed that the monitoring strategy was commonly correlated with scientific achievement. In the self-focused learning, elaboration and organization strategies were correlated with scientific achievement in high school students (p<0.05). In the work-focused learning, memorization strategy was correlated with scientific achievement in middle school students, especially in male groups (p<0.05).

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Effects of Process-Focused Assessment Using Student Self-Assessment on Mathematics Achievement and Affective Domain (자기 평가를 통한 과정 중심 평가가 수학 학업 성취도와 정의적 영역에 미치는 영향)

  • Moon, Sojung;Sihn, Hanggyun
    • Journal of Elementary Mathematics Education in Korea
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    • v.24 no.3
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    • pp.279-297
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    • 2020
  • The purpose of this study is to find ways to establish and operate Process-focused Assessment in the classroom as the 2015 revised curriculum has emerged. As a way of doing so, we proposed a Process-focused Assessment through self-assessment and looked at the impact of the applied classes on the mathematical academic performance and affective domain of fifth-grade elementary school students. After selecting two classes of fifth grade with proven homogeneity for research, the experimental group applied Process-focused Assessment through self-assessment and the teacher-led Process-focused Assessment to the comparative group. As a result, it was confirmed that the classes applying Process-focused Assessment through self-assessment significantly improved the math and academic performance of fifth-grade elementary school students. The affective domain of the experimental group did not change significantly, but the analysis of the students' comments and interview data showed that they had more interest and confidence in mathematics.