• Proceedings of the IEEK Conference
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• 2009.05a
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• pp.37-39
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• 2009

In the research of speech recognition, locating the beginning and end of a speech utterance in a background of noise is of great importance. Since the background noise presenting to record will introduce disturbance while we just want to get the stationary parameters to represent the corresponding speech section, in particular, a major source of error in automatic recognition system of isolated words is the inaccurate detection of beginning and ending boundaries of test and reference templates, thus we must find potent method to remove the unnecessary regions of a speech signal. The conventional methods for speech endpoint detection are based on two simple time-domain measurements - short-time energy, and short-time zero-crossing rate, which couldn't guarantee the precise results if in the low signal-to-noise ratio environments. This paper proposes a novel approach that finds the Lyapunov exponent of time-domain waveform. This proposed method has no use for obtaining the frequency-domain parameters for endpoint detection process, e.g. Mel-Scale Features, which have been introduced in other paper. Comparing with the conventional methods based on short-time energy and short-time zero-crossing rate, the novel approach based on time-domain Lyapunov Exponents(LEs) is low complexity and suitable for Digital Isolated Word Recognition System.

• The Research Journal of the Costume Culture
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• v.15 no.1 s.66
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• pp.58-67
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• 2007

The popularity of communities on the Internet has captured the attention of marketing professionals and more consumers are involved in online activities of fashion brands. The primary purpose of this research was to explain the process of how online interactivity influence members' relational market behavior. Subjects of this study were male and female members of online communities of fashion brands. Online survey data were obtained from 416 respondents. Empirical findings of this study were suggestive of two types of interaction in fashion online communities: community-customer interaction and customer-customer interaction. Fashion online community customers' relational market behavior (word of mouth and repurchase intention) was significantly influenced by both types of interactivity. The influence of interactivity on relational behavior was stronger for word of mouth intention than for repurchase intention. This study highlights the importance of interactivity in cyberspace as well as relational market behavior and contributes to e-relationship marketing strategies of fashion brands.

• Journal of Digital Convergence
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• v.14 no.7
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• pp.117-126
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• 2016

This study focuses the importance of relation between information attributes and communication of internet user. The author is to clarify how to communicate in internet environment and word-of-mouth as a result of social influence among internet user take place in relation to information attributes. The main findings are that comprehensive ease, relevance and novelty among information attributes positively influence reciprocal communication, reciprocal communication positively influences internalization and conformity, and those positively influence word-of-mouth communication.

• Fashion & Textile Research Journal
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• v.14 no.3
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• pp.465-471
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• 2012

This thesis collected words, feelings, and psychological images expressed in female faces in their 20s and 60s. The comparative analysis of the characteristics will be based on the effective image of direction and improvement. Through the analyzed station of word of images collected, female faces in 20s of image are positive images such as pretty, cute, and elegant; however, there were also negative images such as gloomy, sharp, and stubborn. Female faces in 60s image are negative image such as scary, gloomy, sharp, and stubborn. To the analyzed station of word's tendency (usually expressed appearance), external-oriented tendency significantly developed in their 20s and 60s. It shows that the importance of appearance is emphasized in women face image in 20s and 60s.

• Journal of information and communication convergence engineering
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• v.16 no.4
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• pp.213-220
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• 2018

With the exponential developments of social network, their fundamental role as a medium to spread information, ideas, and influence has gained importance. It can be expressed by the relationships and interactions within a group of individuals. Therefore, some models and researches from various domains have been in response to the influence maximization problem for the effects of "word of mouth" of new products. For example, in reality, more than two related social groups such as commercial companies and service providers exist within the same market issue. Under such a scenario, they called social adversaries competitively try to occupy their market influence against each other. To address the influence maximization (IM) problem between them, we propose a novel IM problem for social adversarial players (IM-SA) which are exploiting the social network attributes to infer the unknown adversary's network configuration. We sophisticatedly define mathematical closed form to demonstrate that the proposed scheme can have a near-optimal solution for a player.

• Annual Conference on Human and Language Technology
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• 2020.10a
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• pp.14-19
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• 2020

신조어는 자연어처리에 있어 대단히 중요하며, 시스템의 전체 성능에 직접적인 영향을 미친다. 일단위, 주단위로 신규 발생하는 어휘들에 대해, 자동으로 신규성 및 중요도가 측정되어 제공된다면, 자연어처리 연구 및 상용시스템 개발에 큰 도움이 될 것이다. 이를 위해, 본 연구는 한국어 말뭉치 KorNewVocab을 새로이 제시한다. 먼저, 신조어가 가져야 할 세부 중요 조건을 1)신규 어휘 2)인기 어휘 3)지속 사용 어휘로 정의하고, 이 조건을 만족하는 신조어 말뭉치를 2019.01~2019.08까지의 뉴스기사를 중심으로 신조어 412개와 4,532 문장으로 구성된 신조어 말뭉치를 구축하였다. 또한, 본 말뭉치의 구축에 활용된 반자동 신규어휘 검출 및 중요도 측정 방법에 대해 소개한다.

• Journal of Distribution Science
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• v.15 no.12
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• pp.61-72
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• 2017

Purpose - Despite that the importance of small enterprises' performance in the community has been magnified, no study has been conducted yet on the performance based on consumers directly faced by small enterprises. Accordingly, this study aims to investigate the relationship between the life styles of consumers who use small enterprises' stores by type and the word of mouth(WOM) effects, which are concrete behaviors of consumers. Research design, data, and methodology - The VALS classification system was utilized to classify the types of life styles of consumers who use small enterprises' stores. The consumers were divided into a total of four types. This study was intended to investigate the effects of the types of consumers on the word of mouth(WOM) effects of consumers who use small enterprises' stores along with the effects of consumers' perception of economic situations on their word of mouth(WOM) effects after using small enterprises' stores. Results - The results of the study indicated that among the types of consumers who use small enterprises' stores, the group that pursues faith and the group that pursues knowledge had positive (+) effects on favorable word of mouth(WOM) effects. However, the group that pursues trends and the group that pursues action were shown to have no effect and positive or negative perceptions of economic situations were shown to have no effects of the word of mouth(WOM) effects of users of small enterprises' stores. Conclusions - In this study, as a measure to create small enterprises' performance, word of mouth(WOM) effects on small enterprises' stores according to consumers' consumption behaviors were examined focusing on consumers. Through the study results, the groups of consumers who use small enterprises' stores by type that provide favorable word of mouth(WOM) effects were derived. And This Study aims to investigate the relationship between the four type life styles of consumer who use small enterprises' stores and the word of mouth(WOM) effect. Accordingly This study is significant in that it derived a measure to create small enterprises' performance centering on consumers and that it presented a cornerstone for the establishment of small enterprises at the government level.

• Journal of Digital Convergence
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• v.11 no.5
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• pp.225-235
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• 2013

Recently, in order to promote their marketing promotion, the entrepeneurs attach importance to many SNS services and execute it. The representative elements of the SNS service are interactivity, information offering. This study analyzes empirical effects on the SNS service depending on the Relationship Commitment and shows the strategies to enlarge the use frequency and the On-line Word-of-Mouth. The conclusion of this study shows that the Interactivity has a higher positive effects on Affective Commitment than those on information offering and Information offering has stronger positive effects on calculative commitment than interactivity. Also, these effects enlarge the high use frequency more than the low use frequency. This study also shows that the information offering affect the On-line Word-of-Mouth more positively than the Interactivity. And this study shows that SNS service affects the positive effects on the relationship commitment rather than the On-line Word-of-Mouth. Based on the results, the practical implications are offered.

• Journal of the Korean Society for information Management
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• v.35 no.1
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• pp.231-250
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• 2018

In this paper, we propose a new methodology for extracting and formalizing subjective topics at a specific time using a set of keywords extracted automatically from online news articles. To do this, we first extracted a set of keywords by applying TF-IDF methods selected by a series of comparative experiments on various statistical weighting schemes that can measure the importance of individual words in a large set of texts. In order to effectively calculate the semantic relation between extracted keywords, a set of word embedding vectors was constructed by using about 1,000,000 news articles collected separately. Individual keywords extracted were quantified in the form of numerical vectors and clustered by K-means algorithm. As a result of qualitative in-depth analysis of each keyword cluster finally obtained, we witnessed that most of the clusters were evaluated as appropriate topics with sufficient semantic concentration for us to easily assign labels to them.

• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.611-619
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• 2016

Prior researches on brand authenticity so far have focused on the scale development for measuring brand authenticity. However, at the point of time it is necessary to consider the utilization of the proposed scale in an integrative approach. Accordingly, this study aims to examine brand authenticity mediated the effect of brand authority and ethicality on purchase and word-of-mouth intention. The survey method was used for this paper, and data from a total of 136 office workers were used for the analysis. And structural equation model was used to analyze the data. The results of this empirical study is summarized as followings. First, brand authority and ethicality do not have a direct effect on purchase and word-of-mouth intention but brand authenticity mediates the effect of brand authority and ethicality. Second, brand authority and ethicality have positive effect on brand authenticity. This study provides information on the purchase and word-of-mouth intention of salary man. Further, it will provide meaning suggestion point of the importance of brand authenticity in establishing the policy of brand management.