ॐ Anwitaman Datta

I joined NTU Singapore in 2006 after receiving my Phd from EPFL Switzerland. I am interested in large-scale networked distributed information systems and social collaboration networks, self-organization and algorithmic issues of these systems and networks and their scalability, resilience and performance. I lead the Self-* and Algorithmic aspects of Networked Distributed Systems (SANDS) research group.

Research Interests:
- Systems: Large-scale Distributed (Information) Systems, e.g. P2P, Cloud
- Algorithms: Distributed, Randomized, Epidemic
- Self-Organization & complex networks
- Social and collaboration networks
- Security: Trust, Privacy

Topic wise details:
P2P storage, coding for storage, decentralized online social networks, structured overlays, computational trust and social network analysis & applications

3rd party research profiles: DBLP | Google Scholar | Microsoft MAS

New & News

• September 2011: Tutorial at ICDCN 2012 on Scalable Data Management and Storage on the Cloud: State of the Art and Emerging Trends
• January 2011: Best paper award at ICDCN 2011 networking track for GoDisco
• September 2010: Final year project students Damien Goh and Jonathan Ng win (one of the three) third prizes in Motorola sponsored Singapore Android Developer Challenge 2010 for AndroidMinds, an Android based collaborative mind-mapping software (which is also compatible with SharedMind/FreeMind).
  

Recent Papers [Almost complete list at DBLP]

• TwiNER: Unsupervised Named Entity Recognition in Targeted Twitter Stream,
  SIGIR 2012, The 35th International ACM SIGIR Conference on Research and Development in Information Retrieval
• Modeling Context Aware Dynamic Trust Using Hidden Markov Model,
  AAAI 2012, Twenty-Sixth AAAI Conference on Artificial Intelligence
• Detecting Imprudence of 'Reliable' Sellers in Online Auction Sites,
  TrustCom 2012, The 11th IEEE International Conference on Trust, Security and Privacy in Computing and Communications
• City on the Sky: Extending XACML for Flexible, Secure Data Sharing on the Cloud,
  Journal of Grid Computing, Vol. 10/No. 1, 2012
• Multi-Term Keyword Search in NoSQL Systems,
  IEEE Internet Computing, Special issue on Internet-scale Data Management (Jan/Feb 2012)
• Decentralized information dissemination in multidimensional semantic social overlays,
  ICDCN 2012, The International Conference on Distributed Computing and Networking
• SuperNova: Super-peers Based Architecture for Decentralized Online Social Networks,
  COMSNETS 2012, The Fourth International Conference on Communication Systems and Networks
• DRank: Decentralized ranking mechanism for semantic community overlays,
  COMSNETS 2012, The Fourth International Conference on Communication Systems and Networks
• Self-repairing Homomorphic Codes for Distributed Storage Systems,
  Infocom 2011, The 30th IEEE International Conference on Computer Communications
• Byzantine Fault Tolerance of Regenerating Codes,
  P2P 2011, The 11th IEEE International Conference on Peer-to-Peer Computing
• An empirical study of availability in friend-to-friend storage systems, (short paper)
  P2P 2011, The 11th IEEE International Conference on Peer-to-Peer Computing
• Towards intelligent data placement for scientific workflows in collaborative cloud environment,
  DataCloud 2011, The First International Workshop on Data Intensive Computing in the Clouds in conjunction with IPDPS 2011
• T-RecS: Team Recommendation System through Expertise and Cohesiveness, (demo)
  WWW 2011, The 20th International World Wide Web Conference
• Visualizing and Querying Semantic Social Networks, (demo)
  SIGIR 2011, The 34th Annual ACM SIGIR Conference
• Semantic Tag Recommendation Using Concept Model, (poster)
  SIGIR 2011, The 34th Annual ACM SIGIR Conference
• A Generalized Method for Word Sense Disambiguation based on Wikipedia,
  ECIR 2011, The 33rd European Conference on Information Retrieval
• FAST: Friends Augmented Search Techniques - System Design & Data-Management Issues,
  WI 2011, The 2011 IEEE/WIC/ACM International Conference on Web Intelligence
• Contextual Trust Aided Enhancement of Data Availability in Peer-to-Peer Backup Storage Systems,
  JNSM, Journal of Network and Systems Management
• A trust prediction approach capturing agents' dynamic behavior,
  IJCAI 2011, International Joint Conferences on Artificial Intelligence
• MetaTrust: Discriminant Analysis of Local Information for Global Trust Assessment, (extended abstract)
  AAMAS 2011, The 10th International Conference on Autonomous Agents & Multiagent Systems
  An extended version is available on arXiv
• Self-Repairing Codes for Distributed Storage - A Projective Geometric Construction,
  ITW 2011, IEEE Information Theory Workshop
• Mining Latent Relations in Peer-Production Environments: A Case Study with Wikipedia Article Similarity and Controversy,
  SNAM, Social Network Analysis and Mining Journal (Springer)
• WikiTeams: How do they achieve success?,
  IEEE Potential
• GutenTag: A Multi-Term Caching Optimized Tag Query Processor for Key-Value Based NoSQL Storage Systems,
  Manuscript, available on arXiv

Recent TPCs/etc.

• Program co-chair: The Sixth IEEE International Conference on Self-Adaptive and Self-Organizing Systems (SASO 2012 France)
• Publicity chair: The Fourth International Conference on Social Informatics. (SocInfo 2012)

Contact

SnailMail: School of Computer Engineering
                Blk N4, North Spine
                Nanyang Avenue
                Singapore 639798

E-mail: firstname @ ntu.edu.sg or gmail.com

Phone: +65.6790.4855

Fax: +65.6792.6559

Last updated: 1st May 2012