• Title/Summary/Keyword: 개인 속성

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A comparative analysis of metadata structures and attributes of Samsung smartphone voice recording files for forensic use (법과학적 활용을 위한 삼성 스마트폰 음성 녹음 파일의 메타데이터 구조 및 속성 비교 분석 연구)

  • Ahn, Seo-Yeong;Ryu, Se-Hui;Kim, Kyung-Wha;Hong, Ki-Hyung
    • Phonetics and Speech Sciences
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    • v.14 no.3
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    • pp.103-112
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    • 2022
  • Due to the popularization of smartphones, most of the recorded speech files submitted as evidence of recent crimes are produced by smartphones, and the integrity (forgery) of the submitted speech files based on smartphones is emerging as a major issue in the investigation and trial process. Samsung smartphones with the highest domestic market share are distributed with built-in speech recording applications that can record calls and voice, and can edit recorded speech. Unlike editing through third-party speech (audio) applications, editing by their own builtin speech applications has a high similarity to the original file in metadata structures and attributes, so more precise analysis techniques need to prove integrity. In this study, we constructed a speech file metadata database for speech files (original files) recorded by 34 Samsung smartphones and edited speech files edited by their built-in speech recording applications. We analyzed by comparing the metadata structures and attributes of the original files to their edited ones. As a result, we found significant metadata differences between the original speech files and the edited ones.

Typology of Gambles: A Study of Gambling Behaviors and Problems (도박유형에 따른 도박행동과 도박문제의 차이)

  • Hoon Jang ;Sangyeon Yoon ;Taekyun Hur
    • Korean Journal of Culture and Social Issue
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    • v.16 no.3
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    • pp.331-354
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    • 2010
  • Previous psychological studies in gambling have mainly focused on the characteristics of gamblers. the purpose of the present study was to categorize gambles in Korea into subtypes based on winning probability and money and to examine variations of gambling behaviors and problems across the gamble subtypes. A survey on 1,304 gamble participants were conducted, of their gambling behaviors, personal and social problems, and CPGI. First, factor analyses on perceived winning probability and money revealed 6 subtypes of gambles: amusement type, lottery type, internet type, slot-machine type, racing type and casino type. Secondly, comparisons among gamble subtypes revealed the differences in gambling behaviors, gambling-related cognitions, emotional experiences during gambling, and personal/social problems related to gambling. The gambling behaviors in slot-machine type, racing type, and casino type were more negative than those in amusement type, and lottery type. Gamblers in internet type were found to have potential for latent problems of gambling. In discussion, the academic and practical values and implications of typology of gambles were further discussed.

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Study on the Effects of Shop Choice Properties on Brand Attitudes: Focus on Six Major Coffee Shop Brands (점포선택속성이 브랜드 태도에 미치는 영향에 관한 연구: 6개 메이저 브랜드 커피전문점을 중심으로)

  • Yi, Weon-Ho;Kim, Su-Ok;Lee, Sang-Youn;Youn, Myoung-Kil
    • Journal of Distribution Science
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    • v.10 no.3
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    • pp.51-61
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    • 2012
  • This study seeks to understand how the choice of a coffee shop is related to a customer's loyalty and which characteristics of a shop influence this choice. It considers large-sized coffee shops brands whose market scale has gradually grown. The users' choice of shop is determined by price, employee service, shop location, and shop atmosphere. The study investigated the effects of these four properties on the brand attitudes of coffee shops. The effects were found to vary depending on users' characteristics. The properties with the largest influence were shop atmosphere and shop location Therefore, the purpose of the study was to examine the properties that could help coffee shops get loyal customers, and the choice properties that could satisfy consumers' desires The study examined consumers' perceptions of shop properties at selection of coffee shop and the difference between perceptual difference and coffee brand in order to investigate customers' desires and needs and to suggest ways that could supply products and service. The research methodology consisted of two parts: normative and empirical research, which includes empirical analysis and statistical analysis. In this study, a statistical analysis of the empirical research was carried out. The study theoretically confirmed the shop choice properties by reviewing previous studies and performed an empirical analysis including cross tabulation based on secondary material. The findings were as follows: First, coffee shop choice properties varied by gender. Price advantage influenced the choice of both men and women; men preferred nearer coffee shops where they could buy coffee easily and more conveniently than women did. The atmosphere of the coffee shop had the greatest influence on both men and women, and shop atmosphere was thought to be the most important for age analysis. In the past, customers selected coffee shops solely to drink coffee. Now, they select the coffee shop according to its interior, menu variety, and atmosphere owing to improved quality and service of coffee shop brands. Second, the prices of the brands did not vary much because the coffee shops were similarly priced. The service was thought to be more important and to elevate service quality so that price and employee service and other properties did not have a great influence on shop choice. However, those working in the farming, forestry, fishery, and livestock industries were more concerned with the price than the shop atmosphere. College and graduate school students were also affected by inexpensive price. Third, shop choice properties varied depending on income. The shop location and shop atmosphere had a greater influence on shop choice. The customers in an income bracket of less than 2 million won selected low-price coffee shops more than those earning 6 million won or more. Therefore, price advantage had no relation with difference in income. The higher income group was not affected by employee service. Fourth, shop choice properties varied depending on place. For instance, customers at Ulsan were the most affected by the price, and the ones at Busan were the least affected. The shop location had the greatest influence among all of the properties. Among the places surveyed, Gwangju had the least influence. The alternate use of space in a coffee shop was thought to be important in all the cities under consideration. The customers at Ulsan were not affected by employee service, and they selected coffee shops according to quality and preference of shop atmosphere. Lastly, the price factor was found to be a little higher than other factors when customers frequently selected brands according to shop properties. Customers at Gwangju reacted to discounts more than those in other cities did, and the former gave less priority to the quality and taste of coffee. Brand preference varied depending on coffee shop location. Customers at Busan selected brands according to the coffee shop location, and those at Ulsan were not influenced by employee kindness and specialty. The implications of this study are that franchise coffee shop businesses should focus on customers rather than aggressive marketing strategies that increase the number of coffee shops. Thus, they should create an environment with a good atmosphere and set up coffee shops in places that customers have good access to. This study has some limitations. First, the respondents were concentrated in metropolitan areas. Secondary data showed that the number of respondents at Seoul was much more than that at Gyeonggi-do. Furthermore, the number of respondents at Gyeonggi-do was much more than those at the six major cities in the nation. Thus, the regional sample was not representative enough of the population. Second, respondents' ratio was used as a measurement scale to test the perception of shop choice properties and brand preference. The difficulties arose when examining the relation between these properties and brand preference, as well as when understanding the difference between groups. Therefore, future research should seek to address some of the shortcomings of this study: If the coffee shops are being expanded to local areas, then a questionnaire survey of consumers at small cities in local areas shall be conducted to collect primary material. In particular, variables of the questionnaire survey shall be measured using Likert scales in order to include perception on shop choice properties, brand preference, and repurchase. Therefore, correlation analysis, multi-regression, and ANOVA shall be used for empirical analysis and to investigate consumers' attitudes and behavior in detail.

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Study of Planning of Contents for Optimal Experience on Tourism (최적경험 제공을 위한 관광콘텐츠 기획에 관한 연구)

  • Kwag, KyoungHee;Kim, Kijeong
    • Journal of Digital Convergence
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    • v.11 no.12
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    • pp.735-745
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    • 2013
  • Tour industry has been growing with increasing of people leisure time quantitatively as well as qualitatively. Especially, region tourist industry shows rapid growth because of the development of transportation and communication. Tourist contents that representing the region have been developing briskly. However there are many nominal tourist contents have just region differentiation with same attribute and composition. It has to be consider about tourist first not a contents provider or a developer. To be memorable tourist contents and to connect to consumption, understanding about tourist is needed. So 'Experience' will be standards when tourist contents is planned. In that sense, experience 4factors from Experience Economy and Challenge-skill model from Flow will be frames for giving shape to develop tourist contents. Experience 4factors from Experience Economy suggests 4factors for the superb enjoyment to tourists, and Challenge-skill model from Flow proposes balanced contents for understanding tourists. They will contribute to suggest planning frames for sustainable tourist contents and it lead to tourists' reinstation.

Development of a Technology Valuation System for Sustainable Water Resources Technologies (수자원의 지속적 확보기술의 기술가치평가 모형 구축에 관한 연구)

  • Kim, Hyun-Keong;Jeong, Da-Yeon;Heo, Eun-Nyeong
    • Proceedings of the Korea Water Resources Association Conference
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    • 2006.05a
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    • pp.259-263
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    • 2006
  • 정부주도의 연구개발 프로그램에 있어서 체계적인 평가가 필요하다는 점에 대해서는 그간 정부 및 민간에서 지속적으로 제기되어왔다. 이는 기술에 대한 중요성을 인식하면서 연구개발에 대한 민관의 절대적 자원투입은 급격하게 증가하여 온 반면, 질적인 효율성 측면에서 새로운 단계로의 도약이 필요하다는 광범위한 문제인식에 근거한 것이다. 하지만, 그간의 국내 기술평가는 크게 연구비 배정 등 경영-행정적인 목적을 가지고 행하여 온 평가와 연구개발진을 중심으로 연구대상 기술의 특성을 반영한 연구로 양분되어왔다. 즉, 평가의 항목이나 가중치 등의 선정에 있어서 기술개발 당사자와 경영자 및 평가전문가 간의 기술가치평가에 대한 격차가 크게 존재하여왔다. 1990년 이후 우리나라에서도 체계적인 기술가치평가의 필요성이 증대되면서 이에 대한 다양한 연구가 진행되었지만, 기존의 두 측면간의 격차는 크게 좁혀지지 못하고 있는 실정이다. 이는 기술가치 평가가 주로 투자용으로 치우침에 따라 경영적 측면이 강조되는 반면 기술개발자들이 중시하는 R&D 측면에서의 가치가 충분히 반영되지 못한 결과라고 할 수 있다. 따라서 많은 연구들이 본연의 가치를 충분히 입증받지 못하고, 단지 경영적인 측면에서 바라본 단편적인 이유로 사장되는 일이 발생하고 있다. 이를 막기 위해 기술적 측면과 경영적 측면이 함께 하는 학제간(interdisciplinary), 또는 기술-경제(Engineering-Economy) 가치평가 연구가 필요하다고 할 수 있다. 본 연구에서는 과학기술부의 21C 프론티어 사업 중 하나인 수자원의 지속적 확보기술개발사업단에서 개발 중인 수자원의 지속적 확보기술을 대상으로 기술가치평가 모형을 구축하였다. 수자원의 지속적 확보기술의 가치를 평가하기 위해서는 위에서 언급한 기존 기술가치 평가방법의 문제점을 해결해야 할 뿐만 아니라 추가로 공공재 및 필수재의 성격을 갖는 수자원의 특성을 반영할 수 있는 기술가치평가 모형의 구축이 요구된다. 이에 본 연구에서는 효율적인 R&D 투자 정책 수립과 정부정책수립에 기여하고자 AHP(Analytic Hierarchy Process, 계층 분석 과정)기법을 이용, 수자원의 지속적 확보기술의 특성에 따른 4개의 평가기준과 26개의 평가속성으로 이루어진 2단계 기술가치평가 모형을 구축하였으며 2개의 개별기술에 대한 시범적용을 실행하였다.

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Personalized TV Program Recommendation in VOD Service Platform Using Collaborative Filtering (VOD 서비스 플랫폼에서 협력 필터링을 이용한 TV 프로그램 개인화 추천)

  • Han, Sunghee;Oh, Yeonhee;Kim, Hee Jung
    • Journal of Broadcast Engineering
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    • v.18 no.1
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    • pp.88-97
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    • 2013
  • Collaborative filtering(CF) for the personalized recommendation is a successful and popular method in recommender systems. But the mainly researched and implemented cases focus on dealing with independent items with explicit feedback by users. For the domain of TV program recommendation in VOD service platform, we need to consider the unique characteristic and constraints of the domain. In this paper, we studied on the way to convert the viewing history of each TV program episodes to the TV program preference by considering the series structure of TV program. The former is implicit for personalized preference, but the latter tells quite explicitly about the persistent preference. Collaborative filtering is done by the unit of series while data gathering and final recommendation is done by the unit of episodes. As a result, we modified CF to make it more suitable for the domain of TV program VOD recommendation. Our experimental study shows that it is more precise in performance, yet more compact in calculation compared to the plain CF approaches. It can be combined with other existing CF techniques as an algorithm module.

Method of Associative Group Using FP-Tree in Personalized Recommendation System (개인화 추천 시스템에서 FP-Tree를 이용한 연관 군집 방법)

  • Cho, Dong-Ju;Rim, Kee-Wook;Lee, Jung-Hyun;Chung, Kyung-Yong
    • The Journal of the Korea Contents Association
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    • v.7 no.10
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    • pp.19-26
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    • 2007
  • Since collaborative filtering has used the nearest-neighborhood method based on item preference it cannot only reflect exact contents but also has the problem of sparsity and scalability. The item-based collaborative filtering has been practically used improve these problems. However it still does not reflect attributes of the item. In this paper, we propose the method of associative group using the FP-Tree to solve the problem of existing recommendation system. The proposed makes frequent item and creates association rule by using FP-Tree without occurrence of candidate set. We made the efficient item group using $\alpha-cut$ according to the confidence of the association rule. To estimate the performance, the suggested method is compared with Gibbs Sampling, Expectation Maximization, and K-means in the MovieLens dataset.

Analyzing Substantive Theories in User Studies of Information Seeking on the Web (이용자 중심 웹 정보탐색 연구의 실체이론 분석)

  • Kim, Sung-Jin
    • Journal of the Korean Society for information Management
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    • v.23 no.3 s.61
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    • pp.127-146
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    • 2006
  • This study aims to analyze substantive theories in user studies on Web-based information seeking in order to explore the implications of building a unified theory in this field, Substantive theory is defined as research which generalized user behaviors during information seeking on the Web or suggested significant relationships between variables in Web-based information seeking context. The sample of research articles were published in four core journals from 1995 to 2005, Among 42 articles of user-based information seeking on the Web, ten articles were contributed to the development of substantive theories. Findings show that substantive theories used thirteen dependent and ten independent variables and 22 relationships were considered as significant. They have a tendency to focus on individual differences of users and on some specific narrow aspects(i.e. searching or searching time) of user behaviors. Findings suggested a range of implications for a unified theory construction.

The Analysis and Comparison of Analogies in High School Science Textbooks (고등학교 과학 교과서에 제시된 비유 분석 및 비교)

  • Choi, Kyung-Hee;Lee, Young-Ae;Ryu, Soo-Kyung
    • Journal of The Korean Association For Science Education
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    • v.23 no.2
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    • pp.165-175
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    • 2003
  • The purpose of this study was to analyze the use of analogies in high school science textbooks in explaining abstract science concepts. For this study, the analogies used in high school science textbooks of the 7th science curriculum were analyzed. The analogies were classified into the six following types: the nature of shared attributes, representation, analogy/target abstraction, number of analogies, with and without specified use of analogy, and casual relations. A total of 189 analogies were found in the 7th science textbooks. This means that 16.9 analogies were used for each book. In analyzing the analogies, we found some analogies were appropriate, while others were ambiguous and inadequate in explaining the various science concepts. The number of analogies used varied considerably according to the publishing company and the science domain. For more effective understanding of various science concepts, it is necessary to develop more analogies and research the application of analogy.

Exploratory Study on Smart Usage of Smartphone Using the Second-order Measurement Model (스마트폰의 '스마트한 이용'에 대한 탐색적 연구 '스마트함', '스마트하다'의 이용행태에 대한 2차 측정모형을 중심으로)

  • Kim, Ki Yoon
    • Korean journal of communication and information
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    • v.74
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    • pp.72-108
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    • 2015
  • The more mobile technology evolves, the more users are trapped in mobile technology by being encouraging the replacement with state-of-the-art technology. However, the use of device is not entirely determined by technology's attributes itself. The meaning of smartness can be varied by 'how users accept and perceive immediate spatial perception from reality to mobile space' without recognizing the boundaries between them. This study focuses on the analysis of 'smart usage' for smartphone and this is verified the concept of 'smart usage' by the second-order measurement model. The result show that the concept organization of 'smart usage' had been differentiated and elicited by the six factors - 'multifunctional use readiness', 'administrative efficiency', 'embedded media', 'device connectivity', 'user-friendly optimization', and 'external connectivity(being connected). According to the conceptual factors, 'smart usage' can be explained in an individual's autonomous ability to control a mobile interface and to utilize a wide range of applications of smartphones.

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