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How does a â€˜normalâ€™ computer (or social) network look like? How can we spot â€˜abnormalâ€™ sub-networks in the Internet, or web graph? The answer to such questions is vital for outlier detectionâ€¦ (More)

- Jure Leskovec, Deepayan Chakrabarti, Jon M. Kleinberg, Christos Faloutsos, Zoubin Ghahramani
- Journal of Machine Learning Research
- 2010

How can we generate realistic networks? In addition, how can we do so with a mathematically tractable model that allows for rigorous analysis of networ k properties? Real networks exhibit a long listâ€¦ (More)

- Deepayan Chakrabarti, Ravi Kumar, Andrew Tomkins
- KDD
- 2006

We consider the problem of clustering data over time. An evolutionary clustering should simultaneously optimize two potentially conflicting criteria: first, the clustering at any point in time shouldâ€¦ (More)

How will a virus propagate in a real network? Does an epidemic threshold exist for a finite powerlaw graph, or any finite graph? How long does it take to disinfect a network given particular valuesâ€¦ (More)

- Deepayan Chakrabarti, Yang Wang, Chenxi Wang, Jure Leskovec, Christos Faloutsos
- ACM Trans. Inf. Syst. Secur.
- 2008

How will a virus propagate in a real network? How long does it take to disinfect a network given particular values of infection rate and virus death rate? What is the single best node to immunize?â€¦ (More)

Large, sparse binary matrices arise in numerous data mining applications, such as the analysis of market baskets, web graphs, social networks, co-citations, as well as information retrieval,â€¦ (More)

- Deepayan Chakrabarti, Christos Faloutsos
- ACM Comput. Surv.
- 2006

How does the Web look? How could we tell an abnormal social network from a normal one? These and similar questions are important in many fields where the data can intuitively be cast as a graph;â€¦ (More)

How can we generate realistic graphs? In addition, how can we do so with a mathematically tractable model that makes it feasible to analyze their properties rigorously? Real graphs obey a long listâ€¦ (More)

- Jimeng Sun, Huiming Qu, Deepayan Chakrabarti, Christos Faloutsos
- Fifth IEEE International Conference on Dataâ€¦
- 2005

Many real applications can be modeled using bipartite graphs, such as users vs. files in a P2P system, traders vs. stocks in a financial trading system, conferences vs. authors in a scientificâ€¦ (More)

- Deepayan Chakrabarti, Kunal Punera
- ICWSM
- 2011

Twitter has become exceedingly popular, with hundreds of millions of tweets being posted every day on a wide variety of topics. This has helped make real-time search applications possible withâ€¦ (More)