A Solvable Model of Species Body Mass Evolution (2008)
Clauset, Aaron, Redner, Sidney
We present a quantitative model for the biological evolution of species body masses within large groups of related species, e.g., terrestrial mammals, in which body mass M evolves according to...
How many species have mass M? (2008)
Clauset, Aaron, Schwab, David J., Redner, Sidney
Within large taxonomic assemblages, the number of species with adult body mass M is characterized by a broad but asymmetric distribution, with the largest mass being orders of magnitude larger than...
Power-law distributions in empirical data (2007)
Clauset, Aaron, Shalizi, Cosma Rohilla, Newman, M. E. J.
Power-law distributions occur in many situations of scientific interest and have significant consequences for our understanding of natural and man-made phenomena. Unfortunately, the empirical...
Structural Inference of Hierarchies in Networks (2006)
Clauset, Aaron, Moore, Cristopher, Newman, M. E. J.
One property of networks that has received comparatively little attention is hierarchy, i.e., the property of having vertices that cluster together in groups, which then join to form groups of...
On the Frequency of Severe Terrorist Events (2006)
Clauset, Aaron, Young, Maxwell, Gleditsch, Kristian Skrede
In the spirit of Richardson's original (1948) study of the statistics of deadly conflicts, we study the frequency and severity of terrorist attacks worldwide since 1968. We show that these events are...
Scale Invariance in Road Networks (2005)
Kalapala, Vamsi, Sanwalani, Vishal, Clauset, Aaron, Moore, Cristopher
We study the topological and geographic structure of the national road networks of the United States, England and Denmark. By transforming these networks into their dual representation, where roads...
Finding local community structure in networks (2005)
Although the inference of global community structure in networks has recently become a topic of great interest in the physics community, all such algorithms require that the graph be completely...
On the Bias of Traceroute Sampling; or, Power-law Degree Distributions in Regular Graphs (2005)
Achlioptas, Dimitris, Clauset, Aaron, Kempe, David, Moore, Cristopher
Understanding the structure of the Internet graph is a crucial step for building accurate network models and designing efficient algorithms for Internet applications. Yet, obtaining its graph...
Scale Invariance in Global Terrorism (2005)
Clauset, Aaron, Young, Maxwell
Traditional analyses of international terrorism have not sought to explain the emergence of rare but extremely severe events. Using the tools of extremal statistics to analyze the set of terrorist...
Accuracy and Scaling Phenomena in Internet Mapping (2004)
Clauset, Aaron, Moore, Cristopher
A great deal of effort has been spent measuring topological features of the Internet. However, it was recently argued that sampling based on taking paths or traceroutes through the network from a...
Finding community structure in very large networks (2004)
Clauset, Aaron, Newman, M. E. J., Moore, Cristopher
The discovery and analysis of community structure in networks is a topic of considerable recent interest within the physics community, but most methods proposed so far are unsuitable for very large...
Why Mapping the Internet is Hard (2004)
Clauset, Aaron, Moore, Cristopher
Despite great effort spent measuring topological features of large networks like the Internet, it was recently argued that sampling based on taking paths through the network (e.g., traceroutes)...
Traceroute sampling makes random graphs appear to have power law degree distributions (2003)
Clauset, Aaron, Moore, Cristopher
The topology of the Internet has typically been measured by sampling traceroutes, which are roughly shortest paths from sources to destinations. The resulting measurements have been used to infer...
How Do Networks Become Navigable? (2003)
Clauset, Aaron, Moore, Cristopher
Networks created and maintained by social processes, such as the human friendship network and the World Wide Web, appear to exhibit the property of navigability: namely, not only do short paths exist...