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Article
Publication date: 11 October 2022

Yuefeng Cen, Minglu Wang, Gang Cen, Yongping Cai, Cheng Zhao and Zhigang Cheng

The stock indexes are an important issue for investors, and in this paper good trading strategies will be aimed to be adopted according to the accurate prediction of the stock…

136

Abstract

Purpose

The stock indexes are an important issue for investors, and in this paper good trading strategies will be aimed to be adopted according to the accurate prediction of the stock indexes to chase high returns.

Design/methodology/approach

To avoid the problem of insufficient financial data for daily stock indexes prediction during modeling, a data augmentation method based on time scale transformation (DATT) was introduced. After that, a new deep learning model which combined DATT and NGRU (DATT-nested gated recurrent units (NGRU)) was proposed for stock indexes prediction. The proposed models and their competitive models were used to test the stock indexes prediction and simulated trading in five stock markets of China and the United States.

Findings

The experimental results demonstrated that both NGRU and DATT-NGRU outperformed the other recurrent neural network (RNN) models in the daily stock indexes prediction.

Originality/value

A novel RNN with NGRU and data augmentation is proposed. It uses the nested structure to increase the depth of the deep learning model.

Details

Kybernetes, vol. 53 no. 1
Type: Research Article
ISSN: 0368-492X

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Article
Publication date: 1 February 2000

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…

11601

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.

Details

Management Research News, vol. 23 no. 2/3/4
Type: Research Article
ISSN: 0140-9174

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Article
Publication date: 1 November 2003

L. Janelle Dance, Dae Young Kim and Thomas Bern

Urban sociological research posits a strong correlation between social isolation and the growth in illicit activities of street culture, namely the drug trade and violent gang

525

Abstract

Urban sociological research posits a strong correlation between social isolation and the growth in illicit activities of street culture, namely the drug trade and violent gang activities. However, in this article we offer an explanation for why, even in the absence of extreme poverty and social isolation from mainstream institutions, youths in Cambridge, Massachusetts feel vulnerable to illicit street cultural activities. We also offer an explanation for why these youths perceive the effects of social dislocation to be similar to that experienced by youths from larger central cities. As we will elaborate below, some students in Cambridge are affected by illicit street cultural activities because: (1) social dislocation is a relative phenomenon and not merely an absolute phenomenon as described by William J. Wilson; (2) there is a social dislocation spill‐over effect from larger central cities that intensifies or amplifies the experiences of youths in the relatively poorer neighborhoods of Cambridge; (3) and some youths, from stable working‐class or wealthier neighborhoods in Cambridge, view involvement in the illicit activities of street culture as a reputable means of gaining peer respect through status group affiliation.

Details

International Journal of Sociology and Social Policy, vol. 23 no. 11
Type: Research Article
ISSN: 0144-333X

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Article
Publication date: 1 June 2005

Li‐teh Sun

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…

832

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.

Details

International Journal of Sociology and Social Policy, vol. 25 no. 6/7
Type: Research Article
ISSN: 0144-333X

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Article
Publication date: 1 May 1998

Brian H. Kleiner

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…

5446

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.

Details

Equal Opportunities International, vol. 17 no. 3/4/5
Type: Research Article
ISSN: 0261-0159

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Article
Publication date: 1 January 1999

Ricky C.M. Chan and Philip C. Wright

Explores how easy (or otherwise) it is for small businesses to take advantage of the huge markets opening up in the People’s Republic of China. Profiles a Hong Kong‐based office…

745

Abstract

Explores how easy (or otherwise) it is for small businesses to take advantage of the huge markets opening up in the People’s Republic of China. Profiles a Hong Kong‐based office furniture manufacturer and distributor (Logic Office Supplies) as an example of successful market penetration. Outlines the research methodology used ‐ field research conducted in 1992 and 1993, which looked at the historical development of the market, the industry size and profile, the growth of private enterprise, government relations, the legal environment and an analysis of the competition. Explains why the company chose to follow a four‐pronged entry strategy and how they implemented that strategy. Infers that the company’s success was largely due to a careful choice of partners. Points out that sales increased from HK$40 million in 1989 to HK$400 million in 1994. Applies this successful approach to drawing up a conceptual framework for smaller businesses wishing to expand into China. Talks about stage of entry, mode of entry, and whether to opt for permanent representation or joint ventures. Provides a model showing five stages in the process of expanding into China. Concludes that it is not easy to expand into China and that the best route for small businesses to follow is to sell through trading houses and distributorships.

Details

Management Research News, vol. 22 no. 1
Type: Research Article
ISSN: 0140-9174

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Article
Publication date: 1 December 2005

Jenny Ardley

This article aims to give a brief background and overview of the current discourse surrounding hate crime. The author discusses the difficulties of defining hate crime how…

2108

Abstract

This article aims to give a brief background and overview of the current discourse surrounding hate crime. The author discusses the difficulties of defining hate crime how agencies such as the police can deal with the issue. Different characteristics and motivations for the perpetrators of hate crime will be analysed. The victims of hate crime and members of their community can be deeply affected by their victimisation, these affects will be described and possible policy implications discussed.

Details

International Journal of Sociology and Social Policy, vol. 25 no. 12
Type: Research Article
ISSN: 0144-333X

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Article
Publication date: 1 July 1998

G. Reza Kiani

States that advertisers on the World Wide Webb (WWW) rely on a traditional mass communication model, which may be inappropriate for electronic commerce. Sets out to explore how…

382

Abstract

States that advertisers on the World Wide Webb (WWW) rely on a traditional mass communication model, which may be inappropriate for electronic commerce. Sets out to explore how marketing could happen on the WWW. Explains the WWW, its origins, its phenomenal growth, and the opportunities it opens up for commercial transactions, particularly in the USA. Refers to literature which indicates that conventional marketing activities need to be revisited and turned into virtual marketing if there is to be any success in electronic commerce. Cites five phases in this evolutionary process. Focuses on interactivity between the consumer and the marketing organization, predicting that good marketing will be based on good conversation, customer satisfaction and consumer access to the company.

Details

Management Research News, vol. 21 no. 6
Type: Research Article
ISSN: 0140-9174

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Article
Publication date: 1 August 1968

A FACTOR which all industrialised countries must take into account is the general increase in the age of the world population. There are many reasons for this increase but one or…

78

Abstract

A FACTOR which all industrialised countries must take into account is the general increase in the age of the world population. There are many reasons for this increase but one or two are self‐evident. There has been a spectacular drop in infant mortality. The fight against disease is progressively successful. Better living standards make for a sense of well‐being in the population.

Details

Work Study, vol. 17 no. 8
Type: Research Article
ISSN: 0043-8022

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Article
Publication date: 1 December 2005

Elizabeth Heron, Paul Bowen and David Lincoln

This study presents findings on the spatial distribution of vandalism and the nature and extent of vandalism within Manenberg, a residential township in the Western Cape province…

606

Abstract

This study presents findings on the spatial distribution of vandalism and the nature and extent of vandalism within Manenberg, a residential township in the Western Cape province of South Africa. The focus of the study is on the impact of the design of the built environment on vandalism. Design factors of the built environment, most notably, the distribution and type of buildings and open spaces are examined as possible influences on the incidence of vandalism, and population density, type and size of household, and property ownership are considered as relevant demographic variables. The methodology adopted for the study involves the collection and interpretation of official police statistics of vandalism over a seven‐year period (1992‐1999). The statistical data are combined with the 1996 population census for the area. The statistical data are examined and presented in three focus areas: the frequency of vandalism, the nature of vandalism, and the location of vandalism. The study then examines the association between the design of the built environment and vandalism levels. In conclusion, the likely cost implications of vandalism are discussed.

Details

Journal of Financial Management of Property and Construction, vol. 10 no. 3
Type: Research Article
ISSN: 1366-4387

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