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Chengkai Li
   Associate Professor and Associate Chair Department of Computer Science and Engineering The University of Texas at Arlington Director Innovative Database and Information Systems Research Laboratory (IDIR) |
Room 628 Engineering Research Building (ERB) 500 UTA Boulevard Arlington, TX 76019-0015 Office: (817) 272-0162 Email:  WWW: http://ranger.uta.edu/~cli 
Follow @Chengkai_Li
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[Home] [Teaching] [Research] [Services] [Students] [Funding] [Publications] [Talks] [Media] [Biography]
Videos, Demos and Source Codes
- IDIR Project Introductory/Promotional Videos [Vimeo channel] [YouTube channel]
- ClaimBuster: Automated, Live Fact-Checking
- CrewScout: Expert Team Finding by Skyline Groups
- ERQ: Entity-Relationship Query: Structured Entity-Centric Query on Wikipedia
- Facetedpedia: Faceted Search Interface for Wikipedia
- FactWatcher: Automated Monitoring of Facts from Real-World Events
- GQBE: Graph Query by Example
- Maverick: Discovering Exceptional Facts from Knowledge Graphs
- Orion: Auto-suggestion for Interactive Graph Query Formulation
- RankSQL source codes
- TableView: Preview Tables for Entity Graphs [reproducibility package]
- By Associated Press, The Washington Post, The Guardian, The Dallas Morning News, KERA, NBC DFW, Austin American-Statesman, Popular Science, Poynter, Wired, and many more 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
- DEMANDATA: Computational Journalism Research
- NSF Award #1719054 Towards End-to-End Computer-Assisted Fact-Checking
- NSF Award #1408928 Perturbation Analysis of Database Queries
- Research Agenda [ClaimBuster goals] [C+J17] [C+J15] [CIDR11] (3rd place in best Outrageous Ideas and Vision (OIV) Track paper competition)
- Fact Checking
- ClaimBuster [IJCNN18] [KDD17] [VLDB17 demo] [MetroCon17 talk] [C+J16 talk video] [intro video] [online demo]
- iCheck (led by Duke) [ACM TODS] [VLDB14] [SIGMOD14 demo]
- Fact Finding
- FactWatcher [VLDB14 demo] (VLDB14 Excellent Demonstratione Award) [intro video] [online demo]
- Situational Fact Finding [ICDE14] [ICDE14 talk]
- One-of-the-Few Objects [KDD12]
- Prominent Streak Discovery [KDD11] [ACM TKDD]
- Maverick (Discovering Exceptional Facts from Knowledge Graphs) [SIGMOD18] [SIGMOD18 talk] [VLDB18 demo]
- Graph4U: Tackling Usability Challenges in Querying and Exploring Entity Graphs
- [Nandish Jayaram's VLDB15 PhD workshop paper]
- GQBE (Graph Query by Example) [IEEE TKDE] [GRADES14 talk] [ICDE14 demo] [intro video] [online demo]
- Orion (Auto-suggestion for Interactive Graph Query Formulation) [arXiv] [VLDB15 demo] [NCSU talk] [SIGMOD17 tutorial] [intro video] [online demo]
- TableView (Preview Tables for Entity Graphs) [ICDE18 demo] [SIGMOD16] [SIGMOD16 talk] [reproducibility package] (ACM SIGMOD 2017 Most Reproducible Paper Award) [intro video] [online demo]
- Maverick (Discovering Exceptional Facts from Knowledge Graphs) [SIGMOD18] [SIGMOD18 talk] [VLDB18 demo]
- CrewScout: Expert Team Finding by Skyline Groups
- [CIKM14 demo] [CIKM14 demo slides] [IEEE TKDE] [CIKM12] [intro video] [online demo]
- CrowdConsensus: Crowdsourcing and Human Computation
- Crowdsourcing Pareto-Optimal Object Finding by Pairwise Comparisons [CIKM15] [CIKM15 talk]
- EntityEngine: Entity-Centric Querying and Exploration of Web Data
- Entity-Relationship Query [ACM TIST] [CIKM10 demo] [SMUC10] [SMUC10 talk] [online demo]
- Facetedpedia [WWW10] [WWW10 talk] [CIKM10 demo] [online demo]
- Wikipedia Infobox Suggestion [CIKM12 poster]
- RankSQL: Enabling Data Retrieval by Ranking (Top-k) Queries and Beyond
In my PhD work I built a "Google" for databases. The system, RankSQL, is built inside the kernel of a full-fledged DBMS, PostgreSQL. It enables intuitive, efficient, and robust data retrieval by ranking and mechanisms beyond ranking. It helps users to efficiently retrieve data by non-traditional fuzzy queries with soft criteria, and to explore what choices are available in databases and how they match the query criteria. This line of work has broad applications in many domains including E-commerce, Web search, multimedia retrieval, health data management, and bioinformatics.- Ph.D. dissertation: Enabling Data Retrieval: by Ranking and Beyond
- RankSQL [SIGMOD05] [VLDB05 demo] Source Code
- Ranking Aggregates [SIGMOD06]
- Ranking+Clustering [SIGMOD07]
- MetaQuerier: Dynamic Ad-hoc Information Integration across the Internet
- ROLEX: Relational On-Line Exchange with XML (internship at Bell Labs)
Last Modified: 2018-03-15 Created: 2001-09-18 00:16:21