The receiver operating characteristic (ROC) curve may be used to evaluate the performance of a biomarker measured on continuous scale to predict disease status or clinical condition. Motivated by the need for novel study designs with better estimation efficiency and reduced study cost, we...

The area under a ROC curve (AUC) and partial area under a ROC curve (pAUC) are important summary measures useful in assessing the accuracy of a diagnostic test or a biomarker in discriminating true disease status. We consider nonparametric estimation of AUC and pAUC under a test-result-dependent...

The power of Hughes' concept of reverse salients is evident in its widespread adoption and use in areas as diverse as water distribution, metals production, and mobile music businesses. In all these studies the reverse salient concept has been mainly applied to internal problems in the...

This paper seeks to understand how the possibility of a complementary relationship or its lack impacts dynamics of competition between two competing network technologies. It examines the cases of gas-electricity and telegraph-telephone competition. The two case studies suggest that the degree of...

Using data for 320 radio stations operating in the 50 largest Arbitron metro radio markets during 2004 that offered at least some programming in 1 or more of 19 different foreign languages, strongly positive statistical relations were found between the size of foreign language populations in the...

This paper aims to investigate the factors affecting carbon emissions from the perspective of residential energy consumption. Specifically, through an index decomposition analysis (IDA), it examines the influence of social and economic factors on household carbon emissions in China’s...