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1 – 10 of over 1000Jie Ma, Zhiyuan Hao and Mo Hu
The density peak clustering algorithm (DP) is proposed to identify cluster centers by two parameters, i.e. ρ value (local density) and δ value (the distance between a point and…
Abstract
Purpose
The density peak clustering algorithm (DP) is proposed to identify cluster centers by two parameters, i.e. ρ value (local density) and δ value (the distance between a point and another point with a higher ρ value). According to the center-identifying principle of the DP, the potential cluster centers should have a higher ρ value and a higher δ value than other points. However, this principle may limit the DP from identifying some categories with multi-centers or the centers in lower-density regions. In addition, the improper assignment strategy of the DP could cause a wrong assignment result for the non-center points. This paper aims to address the aforementioned issues and improve the clustering performance of the DP.
Design/methodology/approach
First, to identify as many potential cluster centers as possible, the authors construct a point-domain by introducing the pinhole imaging strategy to extend the searching range of the potential cluster centers. Second, they design different novel calculation methods for calculating the domain distance, point-domain density and domain similarity. Third, they adopt domain similarity to achieve the domain merging process and optimize the final clustering results.
Findings
The experimental results on analyzing 12 synthetic data sets and 12 real-world data sets show that two-stage density peak clustering based on multi-strategy optimization (TMsDP) outperforms the DP and other state-of-the-art algorithms.
Originality/value
The authors propose a novel DP-based clustering method, i.e. TMsDP, and transform the relationship between points into that between domains to ultimately further optimize the clustering performance of the DP.
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Yaw A. Debrah and Ian G. Smith
Presents over sixty abstracts summarising the 1999 Employment Research Unit annual conference held at the University of Cardiff. Explores the multiple impacts of globalization on…
Abstract
Presents over sixty abstracts summarising the 1999 Employment Research Unit annual conference held at the University of Cardiff. Explores the multiple impacts of globalization on work and employment in contemporary organizations. Covers the human resource management implications of organizational responses to globalization. Examines the theoretical, methodological, empirical and comparative issues pertaining to competitiveness and the management of human resources, the impact of organisational strategies and international production on the workplace, the organization of labour markets, human resource development, cultural change in organisations, trade union responses, and trans‐national corporations. Cites many case studies showing how globalization has brought a lot of opportunities together with much change both to the employee and the employer. Considers the threats to existing cultures, structures and systems.
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Man has been seeking an ideal existence for a very long time. In this existence, justice, love, and peace are no longer words, but actual experiences. How ever, with the American…
Abstract
Man has been seeking an ideal existence for a very long time. In this existence, justice, love, and peace are no longer words, but actual experiences. How ever, with the American preemptive invasion and occupation of Afghanistan and Iraq and the subsequent prisoner abuse, such an existence seems to be farther and farther away from reality. The purpose of this work is to stop this dangerous trend by promoting justice, love, and peace through a change of the paradigm that is inconsistent with justice, love, and peace. The strong paradigm that created the strong nation like the U.S. and the strong man like George W. Bush have been the culprit, rather than the contributor, of the above three universal ideals. Thus, rather than justice, love, and peace, the strong paradigm resulted in in justice, hatred, and violence. In order to remove these three and related evils, what the world needs in the beginning of the third millenium is the weak paradigm. Through the acceptance of the latter paradigm, the golden mean or middle paradigm can be formulated, which is a synergy of the weak and the strong paradigm. In order to understand properly the meaning of these paradigms, however, some digression appears necessary.
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Presents a special issue, enlisting the help of the author’s students and colleagues, focusing on age, sex, colour and disability discrimination in America. Breaks the evidence…
Abstract
Presents a special issue, enlisting the help of the author’s students and colleagues, focusing on age, sex, colour and disability discrimination in America. Breaks the evidence down into manageable chunks, covering: age discrimination in the workplace; discrimination against African‐Americans; sex discrimination in the workplace; same sex sexual harassment; how to investigate and prove disability discrimination; sexual harassment in the military; when the main US job‐discrimination law applies to small companies; how to investigate and prove racial discrimination; developments concerning race discrimination in the workplace; developments concerning the Equal Pay Act; developments concerning discrimination against workers with HIV or AIDS; developments concerning discrimination based on refusal of family care leave; developments concerning discrimination against gay or lesbian employees; developments concerning discrimination based on colour; how to investigate and prove discrimination concerning based on colour; developments concerning the Equal Pay Act; using statistics in employment discrimination cases; race discrimination in the workplace; developments concerning gender discrimination in the workplace; discrimination in Japanese organizations in America; discrimination in the entertainment industry; discrimination in the utility industry; understanding and effectively managing national origin discrimination; how to investigate and prove hiring discrimination based on colour; and, finally, how to investigate sexual harassment in the workplace.
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Yi‐Ping Lee and Brian H. Kleiner
Stress is a mentally or emotionally disruptive or upsetting condition occurring in response to adverse external influences and capable of affecting physical and psychological…
Abstract
Stress is a mentally or emotionally disruptive or upsetting condition occurring in response to adverse external influences and capable of affecting physical and psychological health. Stress is intangible. However, it comes with some symptoms such as weight gain or loss, easiness to anger, sleeplessness, frequency headaches, strained relationships, fatigue, and low productivity (Hanes, 2002).
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Jack A. Lesser, Lakshmi K. Thumuluri and William T. Kirk
Attempts to understand consumer behaviour through a study of the physiological brain functioning processes. Refers to literature on physiological psychological theory. Provides a…
Abstract
Attempts to understand consumer behaviour through a study of the physiological brain functioning processes. Refers to literature on physiological psychological theory. Provides a brief description of the nervous system and brain centre functions. Tests three models of psychological variables dealing with shopping – the hypothesized developmental state model, hypothesized disposition model, and hypothesized danger model – then integrates these models into one and tests the new model. Tests the models against data gathered during interviews with shoppers in a US shopping mall. Finds some support for Hilgard’s “neodissociationistic theory” of behaviour. Recommends further investigation of the brain’s mechanisms should be carried out.
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Using the Education Queensland Reform Agenda to illustrate examples and approaches to education reform, this article discusses education reform for at‐risk youth. It argues that…
Abstract
Using the Education Queensland Reform Agenda to illustrate examples and approaches to education reform, this article discusses education reform for at‐risk youth. It argues that the characteristics of modernity, the rise of Mode 2 Society, and the power asymmetries associated with the emergence of the politico‐economic will contain the reform ambitions of the Education Queensland and other education reform agendas. It is proposed that the State adopt a transgressive and complimentary set of reform strategies including the adoption of distributed governance, making available meaningful school performance data, encouraging experimentation and facilitating broad stakeholder, community and neighbourhood engagement in school planning and operations. The article argues that measures such as these will assist to mobilize trust, minimise social fragmentation, generate and regenerate community resources, build cohesion, foster the socio‐cultural‐self‐identities of ‘at‐risk’ youth and will assist youth to achieve full participation in a robust and vibrant democracy.
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Jan Ulijn, Anne Françoise Rutkowski, Rajesh Kumar and Yunxia Zhu
We conducted a pilot study to compare the emotions experienced by Dutch and Chinese students during a face‐to‐face negotiation role play. Emotions play an important role in…
Abstract
We conducted a pilot study to compare the emotions experienced by Dutch and Chinese students during a face‐to‐face negotiation role play. Emotions play an important role in negotiations because they influence the behaviour and judgments of negotiators. The Data Printer case developed by Greenhalgh was used to examine the patterns of feelings that emerge during negotiations. One hundred and four participants (62 Chinese and 42 Dutch post graduate students) role‐played two different characters who were confronted with a payment dispute regarding the servicing of a defective printer. The results of the MANOVA and of the Factorial Analysis demonstrates that culture as a carrier of social values and norms did influence the emotional reactions of the people socialised in different cultural contexts. The paper concludes that in order to facilitate conflict resolution and interpersonal communication amongst protagonists in mono as well as in inter‐cultural negotiation context individuals should learn to manage their emotions constructively.
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Cuicui Feng, Ming Yi, Min Hu and Fuchuan Mo
The environment in which users acquire medical and health information has changed dramatically, with online health communities (OHCs) emerging as an essential means for accessing…
Abstract
Purpose
The environment in which users acquire medical and health information has changed dramatically, with online health communities (OHCs) emerging as an essential means for accessing health information. It is imperative to comprehend the factors that shape the users' compliance willingness (UCW) to health information in OHCs.
Design/methodology/approach
This study adopted the information adoption model (IAM) and theory of planned behavior (TPB) to investigate the influence of argument quality (AQ), source credibility (SC) and subjective norms (SN) on UCW while considering the two types of online health information – mature and emerging treatments. The authors conducted an explanatory-predictive study based on a 2 (treatment types: mature vs. emerging) * 2 (AQ: high vs. low) * 2 (SC: high vs. low) scenario-based experiment, using the partial least squares structural equation modeling (PLS-SEM).
Findings
SC positively influences AQ. AQ, SC and SN contribute to information usefulness (IU). These factors positively affect UCW through the mediation of IU. SN were found to improve UCW directly. Moreover, the moderating effect of SC on AQ and IU was more substantial for emerging treatments.
Originality/value
The research model integrates IAM and TPB, considering information types as an additional variable. The approach and findings provide a valuable explanation for UCW to health information in OHCs.
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Bi Ying Hu, Yuanhua Li, Chuang Wang, Barry Lee Reynolds and Shuang Wang
The purpose of this paper is to examine the relationship between school climate and teacher stress. Specifically, the authors construct two parsimonious models to test two main…
Abstract
Purpose
The purpose of this paper is to examine the relationship between school climate and teacher stress. Specifically, the authors construct two parsimonious models to test two main hypotheses. First, whether preschool collegial leadership predicts teachers’ job stress through the mediating role of teacher self-efficacy; second, whether teacher professionalism influences teachers’ perceptions of occupational stress through the mediating role of teacher self-efficacy.
Design/methodology/approach
The authors conceptualized the mediating role of teacher efficacy as an important mechanism that can help to explain the effect of school climate on teacher stress. School climate consisted of two dimensions: principal collegial leadership and professionalism. Therefore, the authors constructed and examined two mediation models by using Bootstrapping mediation modeling: first, preschool teacher self-efficacy as a mediator between preschool collegial leadership and teacher stress; second, preschool teacher self-efficacy as a mediator between preschool teacher professionalism and teacher stress.
Findings
Results from two mediation analyses showed that principal collegial leadership exerts a significant negative effect on preschool teachers’ stress through the mediating role of teacher self-efficacy. Moreover, professionalism was also a significant predictor of preschool teachers’ stress through the mediating role of teacher self-efficacy.
Research limitations/implications
This study contributes to the literature in terms of understanding the mechanism of how school climate helps to reduce teacher stress. First, the authors found that teachers’ individual well-being can be efficiently enhanced through a more collegial leadership. Second, the preschool leadership teams can create a supportive climate to reduce teachers’ stress by improving teachers’ professionalism.
Originality/value
This study offers a new perspective about understanding the internal and external mechanism of teacher stress. The authors discussed the results in light of the recent push by the Chinese Government to teacher quality improvement in early childhood education. The authors argued for prioritizing support for building a supportive school climate for teachers.
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