Introductions
WAMDM means " Web And Mobile Data Management", Which is Professor Xiaofeng Meng( mirror site )'s research lab and is affiliated with the Key Laboratory for Data Engineering and Knowledge Engineering MOE and the Department of Computer Science, School of Information, Renmin University of China.

The research vision in WAMDM is how database techniques would fit into the Web and Mobile computing environments. The research style in our lab is having two tracks - research and system - in order to ensure that the research is actually applied. Innovative data systems research is our goal.

WAMDM Lab has been conducting database related research for many years, and is considered one of the best database groups in the country. It's projects range from the Web Data Management, XML Data Management to Mobile Data Management in the past ten years. Now we are focusing on Cloud data management, databases for new storage hardware, privacy protection for mobile Web, social computing etc. in the new decade.

The site contains information on the projects that are currently in progress and the people in the group. You can also find information on the weekly seminar and annual report. In addition, this site hosts the following webpages:

HardBD 2014
CloudDB 2014


ScholarSpace(C-DBLP)
EasyScholar


Taiji DB: Cloud Database Management System


OrientX: Native XML Database Management System
NSFC Key Project: Flash-based Database Systems
OrientSpace: Personal DataSpace Management System
CCF BigData 2013
WAIM 2013    
NCSC 2012
XLDB Asia 2012
HardBD 2013  FlashDB2012    FlashDB2011
CloudDB2013 CloudDB2012 CloudDB2011 CloudDB2010 CloudDB2009
NDBC2010
MDM2008
WISA2007
Database Society of China Computer Federation

WAMDM Lab locates at the First floor, Computer Building, Renmin University.

Hot Events  
Lab Seminars
  • 2014-05-22 Exloiting service similarity to privacy in location-based search queries by Wang Lu
  • Abstract: This paper proposes a user-centric location-based service architecture where a user can observe the impact of location inaccuracy on the service accuracy before deciding the geo-coordinates to use in a query. It also constructs a local search application based on this architecture.
    [more]
    Invited Talks
    • Prof. Meng. Keynote speech. 2014 High Education Information Summit. 2014-05-07. Xi'an. [News]
    • Prof. Meng. Invited Talk. "Big Data: Challenge and Oppotunity". China Info 100. 2013-07-01. ShangHai. [News]
    • Prof. Meng. Opening Speech. "Introduction to WAIM2013". WAIM2013. 2013-06-15. Beidaihe. [PPT]
    • Prof. Meng. Invited Talk. " Cloud Computing and Big Data". Yanshan University. 2013-05-20. Qinhuangdao.
    • Prof. Meng. Invited Talk. " Cloud Computing and Big Data". Hebei University of Engineering. 2013-05-07. Handan.
    • Prof. Meng. Invited Talk. " Cloud Computing and Big Data". Taiyuan University of Technology 2013-05-06. Taiyuan.
    • Prof. Meng. Invited Talk. " Research and Teaching". Beijing Young Teachers Training . 2013-04-13. Xiangshan, Beijing. [News]
    • Prof. Meng. Invited Talk. " Cloud Computing and Big Data". University of Macau. 2012-12-29. Macau.
    • Prof. Meng Xiaofeng. Keynote Speech. " Big Data and Scoial Computing". 2012 Annual Meeting of China Management Science and Engineering Society, and the 10th Management Science and Engineering Forum of China. 2012-10-21. Yantai University, Shandong. [PPT]
    • Prof. Meng Xiaofeng. Keynote Speech. " Flash-based Database Systems". NDBC2012. 2012-10-13. Hefei, Anhui. [PPT]
    • Prof. Meng. Invited Talk. " Cloud Computing and Big Data". Forum of Future Data. 2012-06-30. Mount Wuyi. Fujian. [PPT]
    • Prof. Meng. Invited Talk. "The Change of Database Research". Tsinghua University. 2012-05-26. Beijing. [PPT]
    • Prof. Meng. Invited Talk. "Sailing in Web Data Ocean". Beijing University of Technology. 2012-05-16. Beijing.[News]
    • Prof. Meng. Invited Talk. "Sailing in Web Data Ocean". Hebei Normal University. 2012-01-16. Shijiazhuang.[News]
    • Prof. Meng. Invited Talk. "Big Data and Data Thinking". CCF-YOCSEF Seminar. 2012-01-05. Peking University.
    [more]
    News
  • [May 07,2014] Prof Meng gave Keynote speech on 2014 High Education Information Summit. Xi'an, May 7, 2014[Detail]
  • [Apr 16,2014] CCF@U193:Prof Meng gave invited talk in Beijing Technology and Business University[Detail]
  • [Jan 06,2014]Prof. Meng elected 2013 CCF Fellow [Detail]
  • [Dec 20,2013]Yantao Gan received the Wu Yuzhang Scholarship Award [Detail]
  • [Dec 14,2013] CCF BigData2013 Held in Beijing. [Detail]
  • [Dec 04,2013] Prof Meng gave invited talk on KOLink2013, Beijing. [Detail]
  • [Nov 21,2013] Prof. Meng gave invited talk at Lenovo. [Detail]
  • [Nov 02,2013] Prof Meng gave Keynote Speech on WISA2013. [Detail]
  • [Oct 25,2013] Prof Meng gave invited talk on e-science forum. [Detail]
  • [Jul 18,2013] Prof Meng visited HUAWEI HQ. [Detail]
  • [Jul 02,2013] Prof Meng gave invited talk on China Info 100. [Detail]
  • [Jun 17,2013] WAIM2013 held at Beidaihe.[Detail]
  • [May 20,2013] CCF@U149:Prof Meng gave invited talk in Yanshan University.[Detail]
  • [May 7,2013] CCF@U142:Prof Meng gave invited talk in Hebei University of Engineering.[Detail]
  • [May 6,2013] CCF@U141:Prof Meng gave invited talk in Taiyuan University of Technology.[Detail]
  • [Apr 13,2013] Prof Meng gave invited talk on " Research and Teaching".[Detail]
  • [Nov 15,2012] 2012 National Conference on Social Computing held in RUC.[Detail]
  • [Oct 24,2012] Dr Bingsheng He from NTU visiting our lab.[Detail]
  • [Oct 21,2012] Prof Meng gave keynote speech on Management Science and Engineering Annual Meeting 2012.[Detail]
  • [Oct 20,2012] China Daily interviewed with Prof Meng on Big Data.[Detail]
  • [Oct 20,2012] Achievements in scientific research of WAMDM lab show on CNCC2012.[Detail]
  • [Oct 13,2012] Prof Meng gave keynote speech on NDBC2012 in Hefei.[Detail]
  • [Oct 13,2012] Lab students won the Best Student Paper and Best Demo Award on NDBC2012.[Detail]
  • [more]
    Recent and Selected Publications
  • X. Zhang, R. Chen, J. Xu, X. Meng. Towards Accurate Histogram Publication under Differential Privacy. Accepted for publication in Proceedings of the 14th SIAM International Conference on Data Mining (SDM 2014): 587-595, Philadelphia, Pennsylvania, USA. (Full Paper)[PDF]
  • J. Zhou, Z. Bao, W. Wang, J. Zhao, X. Meng: Efficient Query Processing for XML Keyword Queries based on the IDList Index. Accepted by VLDBJ.[PDF]
  • Z. Huo, X. Meng, R. Zhang: Feel Free to Check In: Privacy Alert against Hidden Location Inference Attacks in GeoSN. In Processings of the 18th International Conference on Database Systems for Advanced Applications (DASFAA 2013): 377-491. April 22-25, 2013, Wuhan, China. (Regular paper)[PDF]
  • X. Zhang, X. Meng, R. Chen: Differential Private Set-Valued Data Release against Incremental Updates. In Proceedings of the 18th International Conference on Database Systems for Advanced Applications (DASFAA 2013): 392-406. April 22-25, 2013, Wuhan, China. (Regular paper)[PDF]
  • Y. Gan, X. Meng, Y. Shi: COLA: A Cloud-based System for Online Aggregation (Demonstration). In Proceedings of the 29th International Conference on Data Engineering(ICDE2013): 1368-1371, April 8-12, 2013, Brisbane, Australia.[PDF]
  • W. Cao, D. SHASHA: AppSleuth: a Tool for Database Tuning at the Application Level. In Proceedings of the 16th International Conference on Extending Database Technology (EDBT2013): 589-600. March 18-22, Genoa, Italy.[PDF]
  • D. SHASHA, W .Cao: Tuning in Action (Demonstration) In Proceedings of the 16th International Conference on Extending Database Technology (EDBT 2013): 737-740. March 18-22, Genoa, Italy.[PDF]
  • Y. Ma, J. Rao, W. Hu, X. Meng, X. Han, Y. Zhang, Y. Chai, C. Liu: An Efficient Index for Massive IOT Data in Cloud Environment. In Proceedings of the 21st ACM Conference on Information and Knowledge Management(CIKM2012), page: 2129-2133, Oct.29 - Nov.2, 2012, Maui, USA.(Short paper)[PDF]
  • Y. Shi, X. Meng, F. Wang, Y. Gan : You can stop early with COLA: Online processing of aggregate queries in the cloud. In Proceedings of the 21st ACM Conference on Information and Knowledge Management(CIKM2012), pages: 1223-1232, Oct.29 - Nov.2, 2012, Maui, USA.(Full paper)[PDF]
  • J. Wen, X. Meng, X. Hao and J. Xu: An Efficient Approach for Continuous Density Queries. Frontiers of Computer Science, Vol 6(5): 581-595, 2012. [PDF]
  • J. Zhou, T. Ling, Z. Bao, X. Meng: Related Axis: The Extension to XPath Towards Effective XML Search. Journal of Computer Science and Technology, Vol.27(1):195-212, 2012,1.[PDF]
  • Y.Shi, X.Meng, B. Liu: Halt or Continue: Estimating the Progress of Queries in the Cloud. In Proceedings of the 17th International Conference on Database Systems for Advanced Applications (DASFAA2012): pages 169-184, April 15-18,2012, Busan, South Korea.[PDF]
  • Z. Huo, X.Meng, H.Hu, Y.Huang: You Can Walk Alone: Trajectory Privacy-preserving through Stay Points Protection. In Proceedings of the 17th International Conference on Database Systems for Advanced Applications (DASFAA2012) : pages 351-366, April 15-18,2012,Busan, South Korea.[PDF]
  • J.Zhang, X.Meng ,X.Zhou, D.Liu: Co-Spatial Searcher: Efficient Tag-based Collaborative Spatial Search on Geo-Social Network. In Proceedings of the 17th International Conference on Database Systems for Advanced Applications (DASFAA2012): pages 560-575, April 15-18, 2012, Busan, South Korea.[PDF]
  • X. Pan, J. Xu, X. Meng: Protecting Location Privacy Against Location-dependent Attacks in Mobile Services. IEEE Transaction on Knowledge and Data Engineering (TKDE).24(8):1506-1519,2012 .(Regular paper).[PDF]
  • R. Ma, X. Meng, Z. Wang: Preserving Privacy on the Searchable Internet. In Proceedings of the 13th International Conference on Information Integration and Web-based Applications & Services (iiWAS2011): pages 238-245, December 5-7, 2011, Ho Chi Minh City, Vietnam.
  • C. Zhou, X. Meng, D. Liu: Spatio-Temporal Sequence Searching in Flickr(Demonstration). In Proceedings of the 34th Annual ACM SIGIR Conference(SIGIR2011), pages 1265, July 24-28, 2011,Beijing,China.
  • C. Zhou, X. Meng: STS: Complex Spatio-Temporal Sequence Mining in Flickr. In Proceedings of the 16th International Conference on Database Systems for Advanced Applications(DASFAA2011), pages 22-25, April 2011,Hong Kong .(Full Paper).
  • C. Zhou, X. Meng: Out-of-Order Durable Event Processing in Integrated Wireless Networks. Journal of Pervasive and Mobile Computing (PMCJ2011),Vol.7(5):595-610,October 2011. (Regular paper).
  • X. Tang, X. Meng: ACR: an Adaptive Cost-Aware Buffer Replacement Algorithm for Flash Storage Devices. In Proceedings of the 11th International Conference on Mobile Data Management (MDM 2010), pages 33-42, May23-26, 2010, Kansas City, Missouri, USA. (Full paper)
  • D. Zhou, X. Meng: A Flash-aware Random Write Optimized Database (Demonstration). In Proceedings of the 11th International Conference on Mobile Data Management (MDM 2010), pages 276-278, May23-26, 2010, Kansas City, Missouri, USA.
  • C. Zhou, X. Meng: IO3: Interval-based Out-of-Order Event Processing in Pervasive Computing. In Proceedings of the 15th International Conference on Database Systems for Advanced Applications (DASFAA 2010), pages 261-268,April 1-4, 2010, Tsukuba, Japan.
  • W. Liu, X. Meng, and W. Meng: ViDE: A Vision-based Approach for Deep Web Data Extraction. IEEE Transactions on Knowledge and Data Engineering (TKDE), Vol.22(3):447-460, March 2010.
  • [more]