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In this paper we present novel ensemble classifier architectures and investigate their influence for offline cursive character recognition. Cursive characters are represented by feature sets that portray different aspects of character images for recognition purposes. The recognition accuracy can be improved by training ensemble of classifiers on the feature sets. Given the feature sets and the base classifiers, we have developed multiple ensemble classifier compositions under four architectures. The first three architectures are based on the use of multiple feature sets whereas the fourth architecture is based on the use of a unique feature set. Type-1 architecture is composed of homogeneous base classifiers and Type-2 architecture is constructed using heterogeneous base classifiers. Type-3 architecture is based on hierarchical fusion of decisions. In Type-4 architecture a unique feature set is learned by a set of homogeneous base classifiers with different learning parameters. The experimental results demonstrate that the recognition accuracy achieved using the proposed ensemble classifier (with best composition of base classifiers and feature sets) is better than the existing recognition accuracies for offline cursive character recognition. 相似文献
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Using data from the survey of the Ministry of Education, Nepal-2005 for school leaving certificate (SLC) exam, this paper attempts to estimate the impact of private school competition on public school performance for the case of Nepal. The study uses the number of private schools in the neighborhood as a measure of competition. The identification problem is that private school enrollment is likely to be correlated with public school performance. To address this, the study uses the existence of a motorable road within an hour's walking distance from the sample school as an instrument for number of private schools in the neighborhood. The OLS results show no significant relationship. In contrast, the IV method indicates a positive and significant impact of private school competition on public school performance, which holds true for the continuous and binary measure of private school competition. 相似文献
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Amrit Thapa Alejandra Miranda Alan Sánchez Jere R. Behrman 《Higher Education Quarterly》2023,77(3):465-485
Debate continues on the effects of the global proliferation of private higher-educational institutions, especially for-profit institutions. We examine two related questions for Peru using mixed methods: Who attends private institutions and what are their perceived advantages/disadvantages? Longitudinal quantitative data suggest higher-educational segmentation starting early in life, whereby young people from wealthier households attended private institutions and those from poorer households attended public ones. Interviews with teachers, students, and staff provide insights on perceived strengths and drawbacks of higher-educational marketization and highlight the importance of family background in higher-educational choices, governmental regulation, and close monitoring of higher-educational quality. 相似文献
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Brijesh Thapa 《The Journal of environmental education》2013,44(3):133-150
Outdoor recreation participation has increased over the past decades and is projected for further growth. Given the increase, it is important to assess recreationists’ environmental values, activity style, general, and site-specific attitudes and behaviors to promote environmental stewardship, and to develop effective strategies in natural resource management and public policy. This study explored recreationists’ environmental attitude-behavior relationship and the impact of outdoor recreation activity orientation (as a mediator variable) on attitude-behavior correspondence. Overall, attitudes exhibited stronger direct relationships with behaviors, when compared to the effect of participation on behaviors. The influence of activity participation on attitude-behavior correspondence was not significantly demonstrative. The association between participation in outdoor recreation and environmentalism is complex, and there is a need for additional research to better understand the relationship. 相似文献
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Bob Heere Matthew Walker Heather Gibson Brijesh Thapa Sue Geldenhuys Willie Coetzee 《Journal of Sport Tourism》2016,20(1):41-56
The purpose of this study was to examine whether a mega sport event has the potential to bring the nation together by increasing the importance of national identity and decreasing the importance of ethnic identity on the outcome of social cohesion. Instead of replicating prior work that has performed mean score comparisons of national identity, ethnic identity, and social cohesion before and after a particular event, the authors compared the variance explained (pre vs. post event) to show the aggregate influence of the two identities on social cohesion. By focusing on this reporting method, the subsequent discussion rests entirely on the practical influence of the perceptual changes that resulted from event hosting. Data for this trend analysis were collected from South African residents, pre (N?=?1749), and post (N?=?2020) the 2010 FIFA World Cup. Results indicated that while the importance of national identity on social cohesion did not increase, the importance of ethnic identity did decrease strongly, indicating that these mega sports events might cause individuals to forget about their ethnic differences as a result of these events. 相似文献
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Brijesh Thapa 《Environmental Education Research》2001,7(1):39-53
Dunlap and Van Liere (1978) indicated that a paradigmatic change has evolved in which the general populace has shown a genuine level of concern as they have realized that ecological problems faced by the world today are the results of societal values, attitudes and beliefs. Based on this idea, Dunlap and associates offered the New Ecological Paradigm (NEP) scale, which is a general set of beliefs or attitudes towards the environment. To verify this change in thinking, this study employed the NEP scale among a sample of undergraduate students in the United States. The analysis revealed a support and a sympathetic attitude towards the environment, although this support was not overwhelming. Also, students seemed to express the importance towards environmental issues but lacked awareness. Finally, this study showed that Recreation and Park Management students show more favorable attitudes, give more importance to and are more aware of environmental issues than students from Hotel, Restaurant and Institutional Management, and Science, Technology and Society departments, respectively. 相似文献
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Brijesh S Daswani PG Tetali P Rojatkar SR Antia NH Birdi TJ 《Journal of Zhejiang University. Science. B》2006,7(8):665-674
While data are available on the effect of medicinal plants on intestinal motility and their antibacterial action, there is a paucity of information on their mode of action on various aspects of diarrheal pathogenicity, namely colonization to intestinal epithelial cells and production/action of enterotoxins. Crude decoction of dried leaves of Pongamia pinnata was evaluated for its antimicrobial （antibacterial, antigiardial and antirotaviral） effect; and its effect on production and action of enterotoxins （cholera toxin, CT; Escherichia coli labile toxin, LT; and E. coli stable toxin, ST）; and adherence of enteropathogenic E. coli and invasion of enteroinvasive E. coli and Shigellaflexneri to epithelial cells. The decoction had no antibacterial, antigiardial and antirotaviral activity, but reduced production of CT and bacterial invasion to epithelial cells. The observed results indicated that the crude decoction ofP. pinnata has selective antidiarrheal action with efficacy against cholera and enteroinvasive bacterial strains causing bloody diarrheal episodes. 相似文献
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