• Title/Summary/Keyword: perceived complexity

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Improving Low Frequency Signal Reproduction in TV Audio (TV 스피커의 저주파수 신호 재생 개선)

  • Arora Manish;Oh Yoonhark;Kim SeoungHun;Lee Hyuckjae;Jang Seongcheol
    • Proceedings of the Acoustical Society of Korea Conference
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    • spring
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    • pp.275-278
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    • 2004
  • In TV sound system, loudspeakers are subject to severe size constraints. The small size of the transducer affects the low frequency signal performance of the system. Bass signal performance contributes significantly to the user perceived sound quality and a good bass signal reproduction is essential. Increasing the sound energy in the bass signal range is an unviable solution since the gain required are exceedingly high and signal distortion occurs because of the speaker overload. Recently methods are being proposed to invoke low frequency illusion using psychoacoustic phenomena of the missing fundamental. This paper proposes a simple and effective signal processing method to create bass signal illusion in TV speakers using the missing fundamental effect, at a complexity of 12 MIPS on Motorola 56371 audio DSP.

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Process Redesign Through Dynamic Modeling (동적 모델링을 통한 업무 재설계)

  • 김희웅;김영걸
    • Journal of the Korean Operations Research and Management Science Society
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    • v.22 no.3
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    • pp.175-190
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    • 1997
  • Organizational change projects such as Business Process Redisign (BPR) have been perceived to incur high risk due to their high management complexity, enterprise-wide impace, and steep project cost. This research intends to reduce such risk by developing a systematic process redesign methods, called Dynamic Process Modeling (DPM) method. DPM integrates the customer-oriented business process modeling technique with computerized visual simulation technique to promote better understanding of the target process and enable performance simulation of the proposed redesign alternatives prior to actual BPR implementations. For the cusstomer-oriented process modeling, we propose Dynamic-Event Process Chain (Dynamic-EPC) extending from the conceptual customer process model, Event-Process Chain (EPC). We compare DPM with four other implementation-level process modeling methods over eight criteria and demonstrate its effectiveness by applying it to the real-world hospital BPR case.

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Analysis about Developmental Changes of Children's Metamemory (아동의 메타기억의 발달적 변화에 관한 분석)

  • Park, Young-Ah
    • Korean Journal of Human Ecology
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    • v.16 no.6
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    • pp.1141-1152
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    • 2007
  • The purpose of this study was to investigate developmental changes of metamemory. The subjects were 120 5, 7, and 9 year-old children. All children performed metamemory tests which were composed of person variable, task variables, and strategy variable. There were significant age differences in metamemory awareness. As for person variable, prediction accuracy was increased with age. As for task variables, older children recognized aims of tasks, whereas younger children perceived salient properties of tasks. Also, as for strategy variable, number and complexity of strategy for memory retrieval were increased with age.

Beyond Speed : Nine Dimensions of Computer Network Quality Perceived by Its Users

  • Sangjin Yoo;Lee, Choong-Kwon;Sean B.Eom
    • Journal of Korea Society of Industrial Information Systems
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    • v.3 no.1
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    • pp.49-65
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    • 1998
  • The trend toward globalization and competitive advantage is increasing the importance of international data communication . The more companies attempt to be globalized and competitive, the more critical the problems of the computer networks are. To improve computer networks in the business world, it is believed that the network shoud be approached from the viewpoint of service quality : we need to understand what network quality means to network users, those who use the network. The purpose of this study is to develop a dimension that captures the aspects of network quality that are important to network users. Many articles show that speed is very important factor in network systems. But the more important thing is that speed is just one of the factors contributing to network quality. It is suggested that a quality network meet nine dimensions : (1) speed (2) accessibility (3) connectivity (4) security (5) compatibility, (6) government restrictions (7) complexity (8) sustainability and (9) sharability.

Do Women's Attitudes Matter in Acceptance of Islamic Microfinance? Evidence from Malaysia

  • Md Amirul Islam;Muhammad Salah Uddin;Seethaletchumy Thambiah;Elsadig Musa Ahmed;Md Abdur Rauf
    • East Asian Economic Review
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    • v.27 no.1
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    • pp.61-85
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    • 2023
  • The study aims to investigate the factors pursuing the women entrepreneurs to accept Islamic microfinance (IMF) in urban and rural areas of Malaysia. For this purpose, the study applies the Theory of Planned Behavior (TPB) and Innovation and Diffusion Theory to explain Islamic microfinance adoption. Using the structural equation model (SEM) with primary data collected from 384-woman entrepreneurs in Malaysia, the current study uses a 5-point Likert scale. On the basis of theory and collected data, the seven hypotheses are developed. All hypotheses are validated by both directly and indirectly, as well as through a mediating factor. Among the factors, knowledge about IMF and subjective norms significantly influence the acceptance of IMF. On the other hand, the perceived complexity does not show any substantial relationship to the acceptance of IMF. This outcome will be helpful in supporting policymakers, academics, and future studies and must take into account the supported factors. Therefore, the study contributes to develop an innovative framework, to create self-employment for women entrepreneurs.

Purchasing Avoidance of Digital Convergence Products: Focusing on the Customer's Psychological Factors and the Innovation Resistance (디지털 컨버전스제품 구매회피에 관한 연구: 소비자의 심리적 요인과 혁신저항을 중심으로)

  • Suh, Mun-Shik;Ahn, Jin-Woo;Lee, Eun-Kyung;Oh, Dae-Yang
    • The Journal of the Korea Contents Association
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    • v.9 no.1
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    • pp.270-284
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    • 2009
  • There is a big attention to digital convergence products(DCP) nowadays. However, consumers' response on the DCP is not always positive. These products may not match consumers' value and consumers may not know how to use them, because the DCP is generally innovative products. DCP marketers should learn that why consumers do not purchase them. Thus, this paper examines and identifies the consumers' purchase-avoiding psychological factors and antecedents on DCP. In detail, It is empirically checked that how the relationship between purchase-preventing factors such as complexity, incongruence, uncertainty, and unreasonability and purchase-avoiding psychological factors such as dissonance, innovation resistence, and perceived loss is. Also, these purchase-avoiding psychological factors' influence on the purchase-intention is empirically checked. As results, complexity and incongruence have an effect on the innovation resistence significantly. Uncertainty and unreasonability influence perceived loss variable. Unreasonability also influences consumers' cognitive dissonance variable. Additionally, cognitive dissonance have an influence on innovation resistence positively, and such innovation resistence influence consumer's purchase-intention negatively. Therefore, marketers should think twice about the roles of these purchase-preventing factors before launching.

A Study on the Innovation Resistance Caused by Blockchain to the Shipping and Port Industry (해운항만산업의 블록체인 도입에 따른 혁신저항에 관한 연구)

  • Chang, Myung-Hee;Kim, Yun-Mi
    • Journal of Korea Port Economic Association
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    • v.35 no.4
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    • pp.121-146
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    • 2019
  • This study investigates the innovation resistance when blockchain technology is introduced for the shipping and port industry. For the development of a research model with suitable measures, we review and focus on innovation resistance factors with the blockchain technology derived from previous studies. In this research, we consider four factors (innovation characteristics, consumer characteristics, environmental characteristics, and cost characteristics) with innovation resistance as dependent variables. The innovation characteristics include relative benefits, complexity, and perceived risk. The consumer characteristics consider attitude toward existing products, innovation, and self-efficacy. Social impact variables are environmental characteristics and rationality of cost. In the statistical analysis, we set up eight hypotheses to test the significances between variables and find the following four empirical results. First, the relative advantage and the perceived risk have a significant effect on innovation characteristic, but the complexity of this characteristic has no significant effect on innovation resistance. Second, the rationality of cost has no significant effect on innovation resistance. Third, the attitude toward existing products has a positive effect and the innovation of the consumer characteristic has a negative effect on innovation resistance, while the self-efficacy has no significant effect. Finally, the social impact has a significant effect on innovation resistance to blockchain in the shipping and port industry.

Effects of Innovation Characteristics and User Characteristics on the Adopting e-Books : Focused on Innovation Resistance Model (혁신특성과 사용자특성이 전자책 수용에 미치는 영향 : 혁신저항모형을 중심으로)

  • Yoon, Su-Kyung;Kim, Myeong-Ji;Choi, Jun-Ho
    • The Journal of the Korea Contents Association
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    • v.14 no.8
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    • pp.61-73
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    • 2014
  • While past studies on e-books have mainly focused on the uses and gratifications (UG) and technology acceptance model(TAM), this study rather analysed the innovation resistance factors of adopting the e-book based on the innovation resistance model. The research model comprises of two factors: 1) innovation characteristics which include relative advantages, compatability and complexity, 2) user characteristics which encompass attitudes towards innovation and existing products (i.e., paper books). Using online survey questionnaire, this study examined the effects of those innovation and user characteristics on the innovation resistance, and the relationship between innovation resistance and intention of adoption. The results showed that complexity and attitude towards existing products affected the innovation resistance which has negative influence on the intention of adoption. Accordingly, it is necessary to improve the ease of use in the whole process from purchase to reading experiences, and highlight e-books' own interactive features and functions which are perceived as different from paper-book user experience.

A Study of Influence Factors that effect on Consumer Fatigue in the Adoption of Convergence Products (컨버전스 제품 수용에 있어 소비자의 기능적 피로에 영향을 미치는 요인에 대한 연구)

  • Kim, Moon-Tae
    • Management & Information Systems Review
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    • v.32 no.2
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    • pp.83-106
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    • 2013
  • This study testified the influence factors like quantities of advertising, number of hardware and software that are converged, effect on feature fatigue of convergence product. When consumers perceive higher numbers of hardwares in a smart phone, they feel its higher usefulness and complexity. This means that numbers of hardwares is the major factor that enhances consumer's usefulness but, at the same time, it cause perceived leads to higher usefulness in using smart phone, it didn't effect on complexities. It is also important strategy for smart phone companies to provide a lot of useful softwares(applications) to satisfy consumers. Finally, complexity was important factor that lead to higher feature fatigue of consumers. This indicates that smart phone companies have to find adequate numbers of convergence for their new smart phone.

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Remembering Disasters: the Resilience Approach

  • le Blanc, Antoine
    • The Journal of Art Theory & Practice
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    • no.14
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    • pp.217-245
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    • 2012
  • The aim of this paper is to show how the paradigm of disaster resilience may help reorienting urban planning policies in order to mitigate various types of risks, thanks to carefully thought action on heritage and conservation practices. Resilience is defined as the "capacity of a social system to proactively adapt to and recover from disturbances that are perceived within the system to fall outside the range of normal and expected disturbances." It relies greatly on risk perception and the memory of catastrophes. States, regions, municipalities, have been giving territorial materiality to collective memory for centuries, but this trend has considerably increased in the second half of the 20th century. This is particularly true regarding the memory of disasters: for example, important traces of catastrophes such as urban ruins have been preserved, because they were supposed to maintain some awareness and hence foster urban resilience - Berlin's Gedachtniskirche is a well-known example of this policy. Yet, in spite of preserved traces of catastrophes and various warnings and heritage policies, there are countless examples of risk mismanagement and urban tragedies. Using resilience as a guiding concept might change the results of these failed risk mitigation policies and irrelevant disaster memory processes. Indeed, the concept of resilience deals with the complexity of temporal and spatial scales, and with partly emotional and qualitative processes, so that this approach fits the issues of urban memory management. Resilience might help underlining the complexity and the subtlety of remembrance messages, and lead to alternative paths better adapted to the diversity of risks, places and actors. However, when it is given territorial materiality, memory is almost always symbolically and politically framed and interpreted; Vale and Campanella had already outlined this political aspect of remembrance and resilience as a discourse. Resilience and the territorialization of memory are not ideologically neutral, but urban risk mitigation may come at that price.

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