Publications

Exploratory Social Network Analysis with Pajek

An extensively revised and expanded third edition of the successful textbook on analysis and visualization of social networks integrating theory, applications, and professional ...

Information revelation and privacy in online social networks

Participation in social networking sites has dramatically increased in recent years. Services such as Friendster, Tribe, or the Facebook allow millions of individuals to create ...

Applied Latent Class Analysis

Applied Latent Class Analysis introduces several innovations in latent class analysis to a wider audience of researchers. Many of the world's leading innovators in the field of ...

The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Releases 10 and 11 Galaxy samples

We present a one per cent measurement of the cosmic distance scale from the detections of the baryon acoustic oscillations (BAO) in the clustering of galaxies from the Baryon Os...

Qualitative Analysis: Practice and Innovation

Offering a detailed introduction to the practice of data analysis, this book is both user-friendly and theoretically grounded. Drawing on his extensive experience of qualitative...

Conjugate coding

article Conjugate coding Share on Author: Stephen Wiesner Columbia University, New York, N.Y. Columbia University, New York, N.Y.View Profile Authors Info & Claims ACM SIGACT Ne...

A stagewise rejective multiple test procedure based on a modified Bonferroni test

Journal Article A stagewise rejective multiple test procedure based on a modified Bonferroni test Get access G. HOMMEL G. HOMMEL Institut für Medizinische Statistik und Dokument...

How Big Is the Random Walk in GNP?

This paper presents a measure of the persistence of fluctuations in gross national product (GNP) based on the variance of its long differences. That measure finds little long-te...

Can You See the Real Me? Activation and Expression of the “True Self” on the Internet

Those who feel better able to express their “true selves” in Internet rather than face‐to‐face interaction settings are more likely to form close relationships with people met o...

Alternative factor specifications, security characteristics, and the cross-section of expected stock returns1We are especially grateful to Eugene Fama (a referee), an anonymous referee and Bill Schwert (the editor) for insightful and constructive suggestions. We also thank Wayne Ferson, Ken French, Will Goetzmann, Craig Holden, Ravi Jagannathan, Bob Jennings, Bruce Lehmann, Josef Lakonishok, Richard Roll, participants at the 1997 Meetings of the Western Finance Association, the 1997 UCLA/USC/UC Irvine conference, the November 1997 Asset Pricing Meeting of the National Bureau of Economic Research, the Atlanta Forum, and seminars at Columbia, Indiana, Florida, New York, Tulane, and Yale Universities; Eugene Fama and Ken French for providing part of the data used in this study; and Christoph Schenzler for excellent programming assistance. The second author acknowledges support from the Dean's Fund for Research and the Financial Markets Research Center at Vanderbilt University. We are responsible for remaining errors. This paper was formerly titled `A Re-Examination of Security Return Anomalies'.1

HOGWILD!: A Lock-Free Approach to Parallelizing Stochastic Gradient Descent

Stochastic Gradient Descent (SGD) is a popular algorithm that can achieve state-of-the-art performance on a variety of machine learning tasks. Several researchers have recently ...

In transaction cost economics, trust has been treated as redundant or even misleading.This study tested the effects of governance and trust on the risk perceived by agents of fi...