SIGMOD 2017 Tutorial: Building Structured Databases of Factual Knowledge from Massive Text Corpora

Time: 9-10:30am, May 19

Location: Stevens Salon C-5

In today's computerized and information-based society, people are inundated with vast amounts of text data, ranging from news articles, social media post, scientific publications, to a wide range of textual information from various domains (corporate reports, advertisements, legal acts, medical reports). To turn such massive unstructured text data into structured, actionable knowledge, one of the grand challenges is to gain an understanding of the factual information (e.g., entities, attributes, relations) in the text.

In this tutorial, we introduce data-driven methods on mining structured facts (i.e., entities and their relations/attributes for types of interest) from massive text corpora, to construct structured databases of factual knowledge (called StructDBs). State-of-the-art information extraction systems have strong reliance on large amounts of task/corpus-specific labeled data (usually created by domain experts). In practice, the scale and efficiency of such a manual annotation process are rather limited, especially when dealing with text corpora of various kinds (domains, languages, genres). We focus on methods that are minimally-supervised, domain-independent, and language-independent for timely StructDB construction across various application domains (news, social media, biomedical, business), and demonstrate on real datasets how these StructDBs aid in data exploration and knowledge discovery.

Xiang Ren (xren7@illinois.edu), Meng Jiang, Jingbo Shang, Jiawei Han

University of Illinois at Urbana Champaign

Outline & Slides

  1. Introduction [PDF]
  2. Part I: Quality phrase mining: An overview and data-driven approaches [PDF]
  3. Part II: Entity and Relation typing: An overview and a joint typing approach [PDF]
  4. Part III: Attribute discovery for network construction [PDF]
  5. Summary and future directions [PDF]
Download [PDF] for entire tutorial.

Code & Systems

[CoType] [AFET] [PLE] [ClusType] [AutoPhrase] [SegPhrase][TopMine] [MetaPAD]

Publications


Presenters


Xiang Ren, Ph.D. candidate, Department of Computer Science, Univ. of Illinois at Urbana-Champaign. His research focuses on creating computational tools for better understanding and exploring massive text data. He has published over 25 papers in major conferences. He received Google PhD Fellowship in Structured Data and Database Management in 2016, KDD Rising Star by Microsoft Academic Search in 2016, C. W. Gear Outstanding Graduate Student Award by CS@Illinois in 2016, and Yahoo!-DAIS Research Excellence Award in 2015. Mr. Ren has rich experiences in delivering tutorials in major conferences, including SIGKDD 2015, SIGMOD 2016 and WWW 2016.


Meng Jiang, Postdoctoral Research Associate, Department of Computer Science, Univ.\ of Illinois at Urbana-Champaign. His research focuses on behavioral modeling and social media analysis. He got his Ph.D. of Computer Science from Tsinghua University, Beijing in 2015. His Ph.D. thesis won the Dissertation Award at Tsinghua. His recent research won the SIGKDD 2014 Best Paper Finalist. His ICDM 2015 Tutorial won the honorarium.


Jingbo Shang, Ph.D. candidate, Department of Computer Science, Univ.\ of Illinois at Urbana-Champaign. His research focuses on mining and constructing structured knowledge from massive text corpora. He is the recipient of Computer Science Excellence Scholarship and Grand Prize of Yelp Dataset Challenge in 2015.


Jiawei Han, Abel Bliss Professor, Department of Computer Science, Univ. of Illinois at Urbana-Champaign. His research areas encompass data mining, data ware-housing, information network analysis, and database systems, with over 600 conference and journal publications. He is Fellow of ACM and Fellow of IEEE, and received ACM SIGKDD Innovation Award (2004), IEEE Computer Society Technical Achievement Award (2005), and IEEE Computer Society W. Wallace McDowell Award (2009). His co-authored textbook "Data Mining: Concepts and Techniques", 3rd ed., (Morgan Kaufmann, 2011) has been adopted popularly world-wide.