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Book part
Publication date: 9 October 1996

Bryce Allen

Abstract

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Information Tasks: Toward a User-centered Approach to Information Systems
Type: Book
ISBN: 978-1-84950-801-8

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Article
Publication date: 22 July 2021

Ranjeet Yadav and Ashutosh Tripathi

Multiple input multiple-output (MIMO) has emerged as one among the many noteworthy technologies in recent wireless applications because of its powerful ability to improve…

Abstract

Purpose

Multiple input multiple-output (MIMO) has emerged as one among the many noteworthy technologies in recent wireless applications because of its powerful ability to improve bandwidth efficiency and performance, i.e. through developing its unique spatial multiplexing capability and spatial diversity gain. For carrying out an enhanced communication in next-generation networks, the MIMO and orthogonal frequency division multiple systems were combined that facilitate the spatial multiplexing on resource blocks (RBs) based on time-frequency. This paper aims to propose a novel approach for maximizing the throughput of cell-edge users and cell-center users.

Design/methodology/approach

In this work, the specified multi-objective function is defined as the single objective function, which is solved by the introduction of a new improved algorithm as well. This optimization problem can be resolved by the fine-tuning of certain parameters such as assigned power for RB, cell-center user, cell-edge user and RB allocation. The fine-tuning of parameters is attained by a new improved Lion algorithm (LA), termed as Lion with new cub generation (LA-NCG) model. Finally, the betterment of the presented approach is validated over the existing models in terms of signal to interference plus noise ratio, throughput and so on.

Findings

On examining the outputs, the adopted LA-NCG model for 4BS was 66.67%, 66.67% and 20% superior to existing joint processing coordinated multiple point-based dual decomposition method (JC-DDM), fractional programming (FP) and LA models. In addition, the throughput of conventional JC-DDM, FP and LA models lie at a range of 10, 45 and 35, respectively, at the 100th iteration. However, the presented LA-NCG scheme accomplishes a higher throughput of 58. Similarly, the throughput of the adopted scheme observed for 8BS was 59.68%, 44.19% and 9.68% superior to existing JC-DDM, FP and LA models. Thus, the enhancement of the adopted LA-NCG model has been validated effectively from the attained outcomes.

Originality/value

This paper adopts the latest optimization algorithm called LA-NCG to establish a novel approach for maximizing the throughput of cell-edge users and cell-center users. This is the first that work uses LA-NCG-based optimization that assists in fine-tuning certain parameters such as assigned power for RB, cell-center user, cell-edge user and RB allocation.

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International Journal of Pervasive Computing and Communications, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1742-7371

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Article
Publication date: 23 July 2021

Essam Mansour

This study aims to explore the potential use of infographics as a technology-based information dissemination tool in Egyptian public university libraries.

Abstract

Purpose

This study aims to explore the potential use of infographics as a technology-based information dissemination tool in Egyptian public university libraries.

Design/methodology/approach

A quantitative approach was used in the form of a survey conducted in February 202. The survey tool was a self-administrated questionnaire. The study sample consisted of valid responses from 231 library staff. Of this number, 173 (74.9%) were infographics users, and 58 (25.1%) were infographics users.

Findings

Infographics users tended to be males between 31 and 45 years of age, mostly BA holders, librarians, with work experience ranging from 11 to 25 years. On the other hand, infographics nonusers tended to be also males between 31 and 45 years of age, mostly BA holders, librarians, with work experience ranging from 11 to 25 years. The majority of library staff used infographics mainly to provide information about the library's map, news, services, events, contact, working hours, policies and activities, to provide guidance, instructions on the library use, explain its classification scheme and provide statistical data. The largest number of library staff indicated that their use of informational infographics ranged from “Completely used” to “Most used”, followed by statistical infographics and timeline infographics The use of informational infographics and statistical infographics described to be at least fairly easy to them. In addition, the use of timeline infographics, statistical infographics and informational infographics has also been described to at least fairly useful to them. A very large number of infographics users indicated that these means are attractive, effective, persuasive, focused, easy to embed, easy to read, artistic, easy to track, highly digestible data, easily shareable, easily rememberable, informative and understandable. About two-thirds of infographics users showed that they provided infographics through a computer-based format, followed by both printed and computer-based formats, and printed format. Barriers, such as lack of awareness of infographics, lack of knowledge about infographics, lack of time needed and lack of necessary technical skills, have been described as the greatest barriers to the use of infographics by library staff.

Originality/value

This study is one of the very few studies concerned with the potential role of using infographics in Egyptian public university libraries, which relates to the presentation of information in the library environment.

Details

Library Hi Tech, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0737-8831

Keywords

Content available
Article
Publication date: 15 July 2021

Ahlam Ammar Sharif and Andrew Karvonen

Architectural theorists have a long tradition of acknowledging the centrality of building users to architectural production. This article contributes to the discourse on…

Abstract

Purpose

Architectural theorists have a long tradition of acknowledging the centrality of building users to architectural production. This article contributes to the discourse on architecture, actor–network theory (ANT), and users by proposing a typology of user translations ranging from supporting to tinkering to adjusting to resisting.

Design/methodology/approach

The research utilises an ANT-inspired ethnography of sustainable lighting scripts at the Masdar Institute of Science and Technology (MIST). It comprises semi-structured interviews with MIST designers and students, and site visits and participant observation to understand how the users interpret the scripts and how they interact and change them on a daily basis.

Findings

There is a shared understanding that users do not simply receive architectural designs but interpret and change them to suit their preferences. The findings reveal the multiple ways that users interpret and respond to the assumptions of designers and in the process, recast the relations between themselves and their material surroundings.

Originality/value

The research contributes to acknowledging the centrality of users to architectural design processes and the interpretation of design scripts, addressing the limitation in current literature in demonstrating the diversity of ways that users react to such scripts. The research suggests that user actions have significant implications on long-term building performance. It accordingly points to the need for devising multiple means of user involvement in the design process and allowing greater flexibility in design scripts to improve the alignment with user preferences.

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Open House International, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0168-2601

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Article
Publication date: 5 July 2021

Jian Li, Yanping Gong, Julan Xie and Yuxuan Tan

The purpose of this study is to employ a user-centered approach to identify subgroups of people with similar profiles based on their perceptions of multiple dimensions of…

Abstract

Purpose

The purpose of this study is to employ a user-centered approach to identify subgroups of people with similar profiles based on their perceptions of multiple dimensions of digital products' coolness and to test the differences across subgroups in the intention to use these products.

Design/methodology/approach

In Study 1, 1,161 adults rated a virtual digital product on four dimensions of coolness. In Study 2, 660 college students made similar ratings and also reported their intention to use a real digital product. Participants' ratings were analyzed using a user-centered approach, namely latent profile analysis.

Findings

Study 1 identified groups of participants who had similar profiles of product ratings on the four dimensions of coolness: niche cool, mass cool, uncertain cool and uncool. Study 2 replicated the findings of Study 1 and in addition showed that these groups varied in their intention to use the product and in whether a specific dimension increased or decreased this intention.

Research limitations/implications

The cross-sectional data preclude inferences about causality, calling for experimental or longitudinal research. Additionally, future research should explore whether the results generalize to other product categories and other age groups.

Practical implications

Managers should design digital products, segment the market and develop flexible strategies based on combined responses to dimensions of coolness perception.

Originality/value

The present research employed a user-centered approach to identify groups of people who share similar patterns of coolness perception. This study provides new insight that was not available in variable-centered research.

Details

Information Technology & People, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0959-3845

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Article
Publication date: 5 July 2021

Lixin Zhou, Zhenyu Zhang, Laijun Zhao and Pingle Yang

Large volumes of users' creative information have rapidly become vital resources in the open innovation platforms, so it is crucial to identify high-quality information…

Abstract

Purpose

Large volumes of users' creative information have rapidly become vital resources in the open innovation platforms, so it is crucial to identify high-quality information from massive creative information. However, the existing literature on the quality of creative information only focuses on the information characteristics or publishers' features.

Design/methodology/approach

In this paper, the authors used the elaboration likelihood model to examine the joint effect of central route factors (information characteristics: timeliness, readability and sentiment) and peripheral route factors (source characteristics: personality traits, past successful experiences and social network location) on the quality of creative information. Furthermore, the author explored the moderating roles of companies' support between central and peripheral route factors on the quality of creative information. Finally, binary logistic regression was adopted to test the research hypotheses on the empirical data from Salesforce.

Findings

The results indicated that users with high extroversion, conscientiousness, social centrality and prior success rate tended to propose high-quality information. Meanwhile, information timeliness, readability and sentiment also negatively influence the quality of creative information.

Originality/value

Different from previous studies, the study findings not only provide insights on identifying the quality of creative information from an information perspective, but also promotes the awareness of the intrinsic personality traits of information users and innovative support efforts by platforms and their managers.

Details

Kybernetes, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0368-492X

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Article
Publication date: 16 July 2021

Hyunjin Kang, Wonsun Shin and Junru Huang

This study investigates how different parental mediation strategies (active versus restrictive) and teen Douyin users' privacy risk perceptions are associated with their…

Abstract

Purpose

This study investigates how different parental mediation strategies (active versus restrictive) and teen Douyin users' privacy risk perceptions are associated with their privacy management behaviors.

Design/methodology/approach

An online survey with teen Douyin users (N = 500) was administered in mainland China.

Findings

Perceived privacy risk leads teenagers to implement stricter privacy management strategies. However, different types of parental mediation have different impacts on teens' privacy management behaviors. Discussion-based active mediation is positively correlated with privacy disclosure and privacy boundary linkage, while rule-based restrictive mediation is positively associated with privacy boundary control. In addition, active mediation encourages teens to use their own judgment about privacy risks when deciding how much personal information to disclose and with whom they want to share their information. Conversely, restrictive mediation results in teens making decisions about disclosing private information without taking their own risk assessments into account.

Originality/value

Video-sharing social media platforms like TikTok and Douyin have become a cultural trend among teen social media users. However, loss of privacy is a potentially serious downside of using such platforms. Despite the platforms' popularity among this age group, little is known about the ways teens manage their privacy on such social media platforms. By examining how teens' privacy risk perception and parental intervention shape three different aspects of privacy boundary management (i.e. privacy disclosure, privacy boundary linkage, and privacy boundary control), this study provides a comprehensive understanding of teen Douyin users' privacy management.

Details

Internet Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1066-2243

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Abstract

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Funding Transport Systems
Type: Book
ISBN: 978-0-08-043071-3

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Abstract

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Funding Transport Systems
Type: Book
ISBN: 978-0-08-043071-3

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Article
Publication date: 5 July 2021

Kemal Yıldırım, Mehmet Lutfi Hidayetoglu and Sinem Serap Unuvar

This paper aims to focus on determining the effects of location of closed offices on the front facade, rear facade and side facade plans and the indoor layout (left and…

Abstract

Purpose

This paper aims to focus on determining the effects of location of closed offices on the front facade, rear facade and side facade plans and the indoor layout (left and right users’ cabinets) on perceptual evaluations of users of physical environmental factors.

Design/methodology/approach

For this purpose, the responses of 54 academic users who use the Gazi University Technology Faculty Taskent Building offices were taken with the help of a survey.

Findings

As a result, it was determined that office users on the front and side facades generally perceived more positively the offices’ environmental factors than office users on the back facade. In addition, it was determined that offices with storage cabinets located to the right of users (Type A) were perceived more positively than storage cabinets located to the left of users (Type B). On the other hand, it was determined that users between the ages of 25–45 who used closed offices generally perceived the physical environmental factors of offices more positively than users between the ages of 46 and 65.

Originality/value

Especially the location of the building, the landscaping, the plan of the rooms and the landscape to which they are directed are major design decisions that cannot be controlled by employees. Therefore, it is necessary to know the positive/negative effects that may occur during use before making design decisions.

Details

Facilities , vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0263-2772

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