July, 2002

Ph.d in Information Science
School of Information and Library Science, UNC-CH

May, 1997

August, 1987

B.S. in Mathematical Science, Computer Science Option
UNC-CH

2002 - present
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WIDIT Research

Web Information Discovery Integrated Tool (WIDIT) research aims to develop an integrated approach to Web information discovery by leveraging multiple sources of evidence (e.g., text, hyperlink, ontology), combining complementary methods (e.g., information retrieval, natural language processing, machine learning, knowledge organization), and optimizing the integration of human intelligence with machine processing power. WIDIT laboratory houses the collaborative research projects of three faculty members and numerous students.

• TREC Project: 2002-present, Project Director

  TREC project investigates cutting-edge information retrieval strategies that accommodate a variety of data environments and search tasks. TREC project is responsible for developing core components of the WIDIT system architecture, which are utilized in other WIDIT projects, as well as TREC experiments.

• VCoB Project: 2003-present, Project Director

  Virtual Collection Builder (VCoB) project aims to develop an adaptive and interactive agent for building and maintaining a virtual collection of Web documents. VCoB will employ a wide array of methods from content analysis, citation analysis, machine learning, and information
  retrieval to collect, organize, and maintain a searchable and browsable collection of documents that are custom-taylored to the needs and preferences of individual users.

• CiteSearch Project: 2005-present, Project Co-Director with L. Meho

  CiteSearch project, a component of VCoB, develops a multi-faceted fusion approach to information quality assessment that employs a range of citation-based methods to analyze data from multiple sources. The CiteSearch system currently consists of the sf-vcob component, which harvests and analyzes citation data of faculty publications, and the mini-vcob component, which collects and organizes scholarly publications and associated citation data on a given topic.

• CSKD Project: 2003 - present, Project Co-Director with E.K. Jacob

  The Classification-based Search and Knowledge Discovery (CSKD) research explores methods of leveraging both the ontological and link-structural knowledge embedded in classified corpora of Web documents for searching and organizing the Web. CSKD is a multi-dimensional project that entails investigations in such area as machine learning, classification, clustering, link analysis, and fusion.

• JiTTDL Project2004 - 2007, Project Co-Director with E.K. Jacob

  Just-in-Time Teaching Digital Library (JiTTDL) is an NSF-funded project at US Air Force Academy to develop the digital library for Justin-in-Time pedagogical resources, where CSKD-based approaches were employed to construct a prototype digital library system.

• DGov Project: 2004 - 2006, Project Co-Director with L. Meho

  Digital Government (DGov) project investigates an efficient and effective approach to organizing the U.S. Government websites that can facilitate the access and enhance the retrieval of government information.i The DGoV project became inactive when a major government initiative to restructure FirstGov.gov to USA.gov began in 2007.

1999 - 2002
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Sitemap Tree Project

• A dynamic tree manipulation application allowing creation and maintenance of a hierarchical tree structure, which can represent various entities from a file system (e.g. Windows Explorer) to a hyperlink-based map of a given Web site.
• Implemented with JavaBeans and Swing Components.
• http://ils.unc.edu/yangk/sitemaptree.htm

1998
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IRISWeb project under Chancellor’s Instructional Technology Grant

• IRISWeb is a work-in-progress prototype of the next-generation web search engine that will incorporate the features of dynamic indexing, meta-search, relevance-feedback, and dynamic collection development.
• Currently implemented in Java, C++, C, and Perl.
• http://ils.unc.edu/iris/

1997
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IRISWeb Indexing Project

• IRIS Web Indexing module is comprised of two main components: the Web Crawler/Indexer application which indexes a target URL and its embedded links, and Sitemap Display applet, which displays the indexed pages in a directory tree structure.
• Implemented in Java.
• http://ils.unc.edu/iris/sitemap/mksmap.htm

1996
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• Nice Stemmer implements 4 stemmer algorithms, any of which can be executed by the user according to his/her need.
• Implemented in C++.
• http://ils.unc.edu/yangk/nstem.htm

IRISRuby Project

• IRISRuby is the first incarnation of IRIS. It can index and search documents stored on an intranet server.
• Implemented in Perl.
• http://ils.unc.edu/inls300/iris.html

summer, 2008

Spring, 2008

Fall, 2007

summer, 2007

Spring, 2007

Fall, 2006

Summer, 2006

Spring, 2006

Fall, 2005

Summer, 2005

Spring, 2005

Fall, 2004

Summer, 2004

Spring, 2004

Fall, 2003

Summer, 2003

Spring, 2003

Fall, 2002

Summer, 1999

1979 - 1987

2005 - Present

2003 - Present

2002 - Present

2001 - 2002

Search Engine Webmaster
Lockheed Martin, Inc., Research Triangle Park, NC

Design, implement and maintain Web-based information retrieval services as well as administer SAS IntrNet services for the United States Environmental Protection Agency.

1998 - 2002

Information Systems Consultant
World Christian Nursing Foundation.

• Design, implement and maintain information systems such as accounting, database, and Web pages for World Christian Nursing Foundation. Also, provide technical support and training.

1999 - 2000

PublicUse Data Navigation System Designer
UNC-CH Dept. of Biostatistics, CSCC.

• Design, implement and maintain a navigation system for NIH to help users to find data of interest and the associated documentation. This system, updated annually, is being considered for use as a template for other public use data navigation systems.

  http://www.bios.unc.edu/cscc/ARIC/pubuse/

1998 - 2000

Applications Programmer Analyst II
UNC-CH Dept. of Biostatistics, CSCC.

• Design, implement and support Web-based applications and information technology solutions for Statistical Computing Division, streamline data management and analysis systems, and establish and supervise training procedures for ARIC Surveillance programmers.

1989 - 1998

Applications Programmer Analyst I
UNC-CH Dept. of Biostatistics, CSCC.

• Design, implement, and maintain data management and analysis programs as well as programming for statistical analysis, manuscript analysis, quality control analysis and data verification. Trained and supervised ARIC programming team till August 1991.

1988 - 1989

Applications Programmer II
UNC-CH Dept. of Biostatistics, CSCC.

• Perform statistical analysis computing for SOLVD research project.

1987 - 1988

• Develop administrative applications software for Statistical Computing Division.

1992 - 1995

• Publish a monthly newspaper serving the Asian American community in North Carolina.
  http://ils.unc.edu/cann/

Summer, 1987

• Constructed customized financial software.

SAS

C++, Java, Perl

MS Access

HTML, JavaScript

2007

Excellent Paper Award, International Symposium on Information Technology Convergence

• Kang, H. K., Jeon, H.S., Ko, M.C., Kim, J.S., & Yang, K. (2007). A resolving of word sense ambiguity using two-level document ranking method in information retrieval. In 2007 International Symposium on Information Technology Convergence (pp. 315-319). Washington, DC: IEEE Computer Society.

Best Paper Nominations Award, International Conference on Weblogs and Social Media

• Yang, K., Yu, N., Valerio, A., Zhang, H, & Ke, W. (2007). Fusion approach to finding opinions in blogosphere. Proceedings of the 1st International Conference on Weblogs and Social Media

2006

IU Emergency Grant-in-Aid of Research, IU

• "Citation Analysis of Library and Information Science Faculty Publications: ISI Databases and Beyond"

OCLC/ALISE Library and Information Research Grant, OCLC

• "Citation Analysis of Library and Information Science Faculty Publications: ISI Databases and Beyond"

2005

Small Grant for Exploratory Research (SGER) Award, NSF

• "A test-bed for personalized, privacy-preserving and high quality health information delivery" (IIS-0549313)
• awarded by NSF Information and Intelligent Systems program

2004

Indiana University Grants-in-Aid of Research, IU

2001 - 2002

Eugene Garfield Dissertation Fellowship, Beta Phi Mu

1997 – 1999

The Margaret Ellen Kalp Fellowship, UNC-CH

1998

Dean’s Achievement Award, UNC-CH

Chancellor’s Instructional Technology Grant Scholarship , UNC-CH

1995 – 1996

2008

2007

2006

2005

2004

2003

2002

1999 – 2002

1998 – 2002

1992 – 2002

1992 – 1995

1991 – 1993

1979 – 1987

1982 – 1985

President
UNC Karate Club, Chapel Hill, NC