PublicationS

• Navid Azimi, Xiaoxiao Hou, Jie Gao, Himanshu Gupta. "Data Preservation Under Spatial Failures in Sensor Networks", Submitted
• Quanqing Xu, Heng Tao Shen, Bin Cui, Xiaoxiao Hou, Yafei Dai. "A Novel Content Distribution Mechanism in DHT Networks", 8th International IFIP-TC 6 Networking Conference (Networking'09), Aachen, Germany, May 11-15, 2009.
• Quanqing Xu, Xiaoxiao Hou, Bin Cui, Heng Tao Shen and Yafei Da. "Facilitating Effective Resource Publishing and Searching in DHT Networks". HKIE Transactions, 2009.
• Mingzhong Xiao, XIaoxiao Hou, Nanbo Min. "Scheme for Content Filtering in P2P File Sharing System", Computer Engineering 2008, (Chinese Version)
• Yang Zhao, Xiaoxiao Hou, Mao Yang, Yafei Dai. "Measurement Study and Application of Social Network in the Maze P2P File-Sharing System", Proceedings of the 1st international conference on Scalable information systems(Infoscale'06), P2PIM Workshop, 2006, Hong Kong, May 30 - June 01, 2006.

Selected Research Projects

Now I am working on erasure coding mechanisms in wireless sensor networks. The projects are coming soon.

Before I went to Stony Brook University...

• Self-learning Chinese word segmentation algorithms based on DHT

  It is the first algorithm considering about Chinese word segmentation in pure distributed P2P file sharing systems. Traditional methods in Information Retrieval field can not address the special problems in P2P file sharing systems. By using the self learning method, I subtly convert word segmentation problem to word composition problem. My solution does not need dictionaries and can only find the words concerned by users. Moreover, my algorithm can automatically study the new appeared words.

• Asynchronous publishing and search algorithms based on DHT

  After observing the deficiency of current algorithms used in eMule, the most popular P2P file sharing system in the world, I suggested a new publishing and search strategy which has lower workload for P2P systems and analysis the index maintaining methods for such system. Moreover my algorithm firstly combines with VSM and users' feedback to rank search results in pure peer-to-peer system. [Networking'09] and [HKIE Trans'09] come from this project.

• A practical illegal content filtering method for centralized P2P file sharing systems

  It is the first practical illegal file filtering method used in P2P file sharing systems. The idea was derived from anti-virus software: maintaining an illegal file database. I implied this algorithm and add it into Maze, the most popular P2P file sharing system in Chinese colleges. After two months' tracking, the amount of downloading illegal files dramatically decreased. [Computer Engineering 2008] is about this projects.

• Measurement study of the social network in Maze P2P file-sharing system

  After analyzing the maze log, we proved the small-world characteristics in Maze system and show that the friend network of Maze system is a kind of social network. Then we suggested a search algorithm combining with Eigen-Trust algorithm to improve the search performance in maze system. [Infoscale'06] is concerning with this project.