Regression Methods for Combining Multiple Classifiers

As no single classification method outperforms other classification methods under all circumstances, decision-makers may solve a classification problem using several classification methods and examine their performance for classification purposes in the learning set. Based on this performance, better classification methods might be adopted and poor methods might be avoided. However, which single classification method is the best to predict the classification of new observations is still not clear, especially when some methods offer similar classification performance in the learning set. In this article we present various regression and classical methods, which combine several classification methods to predict the classification of new observations. The quality of the combined classifiers is examined on some real data. Nonparametric regression is the best method of combining classifiers.     

The reality of net capital gains and annual profit on NZ primary producing businesses: data from a recent survey of all farm types

ABSTRACT

Annual net cash returns and net capital gains provide farmers with their actual and potential monetary rewards, respectively. This article reports on a national farm survey showing both actual and potential returns, on average, are not as high as might be imagined. This is supported by the findings of earlier studies and has implications for rural societies and their associated economies. Data on income, expenses and profit is presented as is data on farm value changes over the life of each farm. The information is adjusted for inflation to provide ‘real’ data. The profit and net capital gain figures are divided into groupings based on a range of criteria such as total farm capital, and labour compliment as a reflection of farm size. Statistically significant differences occur for some groupings such as farm type and farm size.     

网上作品著作权的法律保护研究

随着人类进入21世纪,互联网成为人们获取信息不可或缺的重要渠道。与此同时,网上作品,著作权的保护日益成为人们普遍关注的课题。由于网上作品著作权较之传统著作权在作品表现形式、著作权权利内容以及作品权利人方面存在其特殊性,因此,网上作品著作权法律保护制度有待进一步完善。首先,应扩大网上作品著作权的保护范围,包括扩大著作权保护的客体范围,扩大著作权的权利内容,增加著作权人的作品利用方式以及重视对著作人身权的保护;同时须对著作权的合理使用与侵权使用进行重新界定。     

基于神经网络的投资基金周净值预测

利用神经网络理论的辨识特性,建立了基金周净值预测的BP神经网络预测模型.通过对具有代表性的投资基金“基金金泰”的实证分析,表明该模型具有很好的非线性反映能力和学习能力,能准确预测基金周净值的变化趋势和上升与下降趋势的转折点,为预测基金净值未来走势提供了一个有效的方法.     

Entry into Consensual Unions and Marriages Among Finnish Women Born Between 1938 and 1967

This study, based on a survey undertaken in 1989, clearly illustrates the dramatic changes in family formation behaviour that have occurred in Finland. Whereas only about one-tenth of the first unions of women born between 1938 and 1942 began as consensual unions, after the cohort of 1962 only one-tenth were formal marriages. These changes lagged some ten years behind the corresponding ones in Sweden, but were about five years ahead of Norway. In Finland, up to the present, most consensual unions have constituted a temporary state which precedes proper family life. Most couples married in connection with the birth of the first child. Consensual union as a permanent lifestyle is generally connected with a low level of education of women.     

基于网络的高校教学信息监控系统的构建

现代化的教学信息监控是保证教学质量不断提高的重要途径。依据全面教学质量管理原理构建的基于网络的教学信息监控系统，具有广泛、及时、准确、高效等特点，可以实现教学信息监控的实时化、网络化和全面化。     

网络互动中人际信任概念辨析

因特网的虚拟性和匿名性等特征,使网络人际信任的内涵有别于现实社会。网络人际信任是交往双方对对方能够完成自己所托付之事的一种概括化期望,是心理预期和行为策略的统一。风险小、潜在威胁小是网络人际信任的基础;情感风险是网络人际信任的主要内容;文本符号是网络人际信任关系的中介。     

食品机械故障的神经网络分析

提出了食品机械运行、故障、修理及经济性的神经网络分析,为食品机械运行技术管理、实时监控提供了智能化的科学手段。     

当下网络诗歌对诗歌精神的建构与解构

网络诗歌以虚拟空间里的精神自由为旨归，张扬着众生和谐的人伦理想；以多维创作中人性的共鸣为目的，真实地呈现出人际关系的复杂样态；以诗作内容上的时代现实为内蕴，具体历史地传承着当下的道德伦理状态。同时，消费至上的欲望化写作、网络技术掩藏下的“无主体”特征、虚拟空间个性极端叛逆的精神内质，集中体现了网络诗歌对诗歌精神的无情解构。     

Poverty and social conditions in Poland during the transformation to a market economy

The social welfare system in Poland was changed during the 1990s. The full employment policy, as a guarantee for social security, was abandoned and the institutions through which social resources were distributed were replaced. State-owned enterprises previously fulfilled certain social functions; the necessary resources came from state subsidies and from obligatory funds: housing and social funds as well as a proportion of wage costs. Thus, the prices of many types of important consumption goods (such as food and housing) were fixed at a relatively low level. The elimination of subsidies resulted in the bankruptcy of many state-owned enterprises which, in turn, led to the diminished importance of the social security function of industrial enterprises. Their role in the newly created social welfare system was taken over by social welfare centers, through which assistance was distributed to those in need. Besides the traditional recipients of social assistance, a growing number of unemployed people, who comprise approximately 14% of the productively active citizens, have also begun collecting assistance.