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Xin CAO

Lecturer
Database Research Group
School of Computer Science and Engineering
The University of New South Wales

Office: K-17 201D
Email: xin.cao AT unsw.edu.au
TEL: +61-2-93855317

Short Bio

I am currently a lecturer in the School of Computer Science and Engineering (CSE) at The University of New South Wales (UNSW). I had worked as a lecturer in the Knowledge and Data Engineering research cluster within the School of Electronics, Electrical Engineering and Computer Science at Queen's University Belfast (QUB) from 2014 to 2016.

I did my PhD study in the School of Computer Science and Engineering, Nanyang Technological University (NTU) from August 2010 to October 2013, under the supervision of Prof. Gao Cong. Prior to joining NTU, I was a scientific assistant in the Center for Data-Intensive Systems (Daisy) in Aalborg University (AAU) from September 2008 to June 2010, under the supervision of Prof. Christian S. Jensen and Prof. Gao Cong. During October 2013 to September 2014, I was a research associate in the Data Management and Analytics Lab (DMAL) at NTU. I obtained my Master and Bachelor degrees from the School of Computer Science and Technology, Zhejiang University, China, in June 2008 and June 2006, respectively.

Research Interests

I am interested in Databases, Information Retrieval, and Data Mining. My current research mainly focuses on:

Spatial databases, Spatial and textual data management

  • Efficient processing of spatial keyword queries (PVLDB10, SIGMOD11, PVLDB14, SIGMOD15, TODS15, PVLDB16, and an invited paper in ER12)

  • Streaming spatial and textual data publish/subscribe systems (e.g, geo-tagged tweets) (SIGMOD13, ICDE15, ICDE18)

  • Keyword-aware route planning (PVLDB12, IJCAI15)

  • Mining significant semantic locations from user generated GPS data (PVLDB10)

Location-based social networks analysis

  • Community search in geo-social networks (ICDE18)

Graph data analytics

  • Personalized PageRank (PVLDB10, SIGMOD17)

I also have research experiences on:

  • Search similar questions in community based question answering services (CIKM09, WWW10, TOIS12)

  • Indoor distance-aware query processing (ICDE12)

  • Streaming graph clustering (ICDE16)

  • Differential privacy (DASFAA18)

Selected Publications

Academic Record: Google Scholar, DBLP

  1. Dongxiang Zhang, Yuchen Li, Xin Cao, Jie Shao, Heng Tao Shen. Augmented keyword search on spatial entity databases. The VLDB Journal (VLDBJ), 27(2): 225-244, 2018

  2. Kai Wang, Xin Cao, Xuemin Lin, Wenjie Zhang, Lu Qin. Efficient Computing of Radius-Bounded k-Cores. ICDE 2018

  3. Lisi Chen, Shuo Shang, Zhiwei Zhang, Xin Cao, Christian, S. Jensen, Panos Kalnis. Location-Aware Top-k Term Publish/Subscribe. ICDE 2018.

  4. Zhiqiang Xu, Xin Cao, Xin Gao. Convergence Analysis of Gradient Descent for Eigenvector Computation. IJCAI 2018.

  5. Tao Guo, Xin Cao, Gao Cong, Jiaheng Lu, Xuemin Lin. Distributed Algorithms on Exact Personalized PageRank, SIGMOD 2017.

  6. Farhana Choudhury, Shane Culpepper, Timos Sellis, Xin Cao. Maximizing Bichromatic Reverse Spatial and Textual k Nearest Neighbor Queries. PVLDB 2016.

  7. Ryan McConville, Xin Cao, Weiru Liu, Paul Miller. Accelerating Large Scale Centroid-based Clustering with Locality Sensitive Hashing. ICDE 2016.

  8. Yifeng Zeng, Xuefeng Chen, Xin Cao, Shengchao Qin, Marc Cavazza, Yanping Xiang. Optimal Route Search with the Coverage of Users’ Preferences. IJCAI 2015.

  9. Tao Guo, Xin Cao, Gao Cong. Efficient Algorithms for Answering the m-Closest Keywords Query. SIGMOD 2015.

  10. Lisi Chen, Gao Cong, Xin Cao, Kian-Lee Tan. Temporal Spatial-Keyword Top-k Publish/Subscribe. ICDE 2015.

  11. Xin Cao, Gao Cong, Tao Guo, Christian S. Jensen, Beng Chin Ooi. Efficient Processing of Spatial Group Keyword Queries. ACM Transactions on Database Systems (TODS) 40(2): 13:1-13:48, 2015.

  12. Xin Cao, Gao Cong, Christian S. Jensen, Man Lung Yiu. Retrieving Regions of Interest for User Exploration. PVLDB 2014.

  13. Lisi Chen, Gao Cong, Xin Cao. An efficient query indexing mechanism for filtering geo-textual data. SIGMOD 2013.

  14. Xin Cao, Lisi Chen, Gao Cong, Xiaokui Xiao. Keyword-aware Optimal Route Search. PVLDB 2012.

  15. Xin Cao, Gao Cong, Bin Cui, Christian S. Jensen, Quan Yuan. Approaches to Exploring Category Information for Question Retrieval in Community Question-Answer Archives. ACM Transactions on Information Systems (TOIS) 30(2): 7:1-7:38, 2012.

  16. Xin Cao, Lisi Chen, Gao Cong, Christian S. Jensen, Qiang Qu, Anders Skovsgaard, Dingming Wu, Man Lung Yiu. Spatial Keyword Querying (invited paper). ER 2012.

  17. Hua Lu, Xin Cao, Christian S. Jensen. A Foundation for Efficient Indoor Distance-Aware Query Processing. ICDE 2012.

  18. Xin Cao, Gao Cong, Christian S. Jensen, Beng Chin Ooi. Collective spatial keyword querying. SIGMOD 2011.

  19. Xin Cao, Gao Cong, Christian S. Jensen. Retrieving Top-k Prestige-Based Relevant Spatial Web Objects. PVLDB 2010

  20. Xin Cao, Gao Cong, Christian S. Jensen. Mining Significant Semantic Locations From GPS Data. PVLDB 2010.

  21. Xin Cao, Gao Cong, Bin Cui, Christian S. Jensen. A generalized framework of exploring category information for question retrieval in community question answer archives. WWW 2010.

Phd Thesis

Spatial Keyword Querying Beyond the Single Geo-Textual Object Granularity. Oct 2013 (available upon email request)

Students

Xuefeng CHEN (2017.02 - present)
Yu HAO (2018.02 - present)

Teaching

CSC2036:Database Systems, Level 2, 2014 Fall and 2015 Fall, QUB
COMP9313:Big Data Management, 2016S2 - present, UNSW

Scientific Services

I am/was the chairs of the following conferences:

  • Publicity co-chair of te 20th IEEE International Conference on Mobile Data Management (MDM 2019)

  • Proceedings chair of the Australasian Database Conference (ADC 2019)

  • Proceedings chair of the Australasian Database Conference (ADC 2017)

  • Demo co-chair of the 13th Advanced Data Mining and Applications (ADMA 2017)

Program Committee Memberships

  • The 4th International Conference on Big Data Analytics-2015 (BDA 2015)

  • The 17th International Conference on Web-Age Information Management (WAIM 2016)

  • IEEE 2nd International Conference on Big Data Computing Service and Applications (BigDataService 2016). Track Chair

  • The 32nd IEEE International Conference on Data Engineering (ICDE 2016). PC member for TKDE Posters

  • IEEE 3rd International Conference on Big Data Computing Service and Applications (BigDataService 2017)

  • The 30th International Conference on Industrial, Engineering, Other Applications of Applied Intelligent Systems (IEA/AIE 2017)

  • The 26th ACM International Conference on Information and Knowledge Management (CIKM 2017)

  • The 34th IEEE International Conference on Data Engineering (ICDE 2018)

  • The 27th International Joint Conference on Artificial Intelligence and the 23rd European Conference on Artificial Intelligence (IJCAI-ECAI 2018).

  • The 27th ACM International Conference on Information and Knowledge Management (CIKM 2018)

  • The 19th IEEE International Conference on Mobile Data Management (MDM 2018)

  • Asia Pacific Web and Web-Age Information Management Joint Conference on Web and Big Data (APWeb-WAIM 2018)

  • The 19th International Conference on Web Information Systems Engineering (WISE 2018)

Reviewer for Journals

  • IEEE Transactions on Knowledge and Data Engineering (TKDE). Since 2012

  • The Computer Journal (Oxford). 2013, 2015

  • ACM Transactions on Spatial Algorithms and Systems (TSAS). 2014, 2017

  • The International Jounal on Very Large Data Bases (VLDBJ). 2014, 2017, 2018

  • Journal of Computer Science and Technology (JCST). 2015

  • Neural Computing and Applications (NCAA). 2015

  • Frontiers of Information Technology & Electronic Engineering. 2015

  • Neurocomputing (NEUCOM). 2015, 2016

  • ACM Transactions on Database Systems (TODS). 2016

  • World Wide Web (WWWJ). Since 2016

  • IEEE Pervasive Computing. 2016

  • IEEE Access, 2017

  • GeoInformatica. 2017

  • Symmetry. 2017

  • Journal of Systems Science and Systems Engineering (JSSSE). 2017

  • ACM Transactions on Information Systems (TOIS). 2017

  • Knowledge and Information Systems (KAIS). 2017, 2018

  • Multimedia Tools and Applications (MTAP). 2017, 2018

  • Future Generation Computer Systems. 2018

  • Transactions on Data Science. 2018

External Reviewer

DASFAA 2011, ICDE 2011, PVLDB 2011, CIKM 2011, CIKM 2012, KDD 2012, PVLDB 2012, WAIM 2013, WWW 2013, ICDE 2013, etc.

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