Software Engineer Computer Science

HAIFENG ZHAO

Email: ********@*****.*** Homepage: http://dsl.cs.ucdavis.edu/~zhf/homepage/

Tel: 530-***-**** Linkedin: http://www.linkedin.com/profile/view?id=34185891

Educational background

****-*012 PhD, Computer Science From: University of California Davis GPA:3.92/4

2005-2008 M.S., Computer Science From: Peking University, China GPA:3.5/4

2001-2005 B.S., Computer Science From: Peking University, China GPA:3.4/4

Publication

Haifeng Zhao, William Kallander, Henric Johnson, Felix Wu. "TrustWiki: A Reliable and Conflict-Refrained

Wiki Model Based on Reader Differentiation and Social Context Analysis", The Journal of

Knowledge-Based System (submitted).

Haifeng Zhao, William Kallander, Tometi Gbedema, Henric Johnson, Felix Wu. "Read What You Trust: An

Open Wiki Model Enhanced by Social Context", The Third IEEE International Conference on Social

Computing (Socialcom), 2011.

Haifeng Zhao, Shaozhi Ye, Prantik Bhattacharyya, S. Felix Wu. SocialWiki: Bring order to wiki systems

with social context, International Conference on Social Informatics (SocInfo), 2010.

Henric Johnson, Niklas Lavesson, Haifeng Zhao and Shyhtsun Felix Wu. (2011) On the Concept of Trust in

Online Social Networks, Trustworthy Internet, Springer Verlag Italia Srl..

Haifeng Zhao, Zijie Qi. Hierarchical Agglomerative Clustering with Ordering Constraints International

Conference on Knowledge Discovery and Data Mining. 2010.

Jianqiao Feng, Haifeng Zhao, Wenhua Jia. A new adaptive distance computation technique for

query-by-multiple-example system, International Conference on Signal Image Technology and Internet

Based Systems (SITIS), 2008.

Haifeng Zhao, Wenhua Jia. An Adaptive Fuzzy Clustering Method for Query-by-Multiple-Example Image

Retrieval, International Conference on Signal Image Technology and Internet Based Systems (SITIS), 2007.

Invention Patents

Haifeng Zhao, Wenhua Jia, Pingli Li, Qin Zhang. A Layout Method Based on the Scanning-line Algorithm,

Patent No.:200*********, Country:CN.

Haifeng Zhao, Ke Dong, Steven Fong. Android Remote Control With Social Sharing Feature,

Patent No.:(Pending), Country:US.

Programming Skills

Familiar with C, C++, Java, PHP, Python, R and SQL languages.

Rich development experience with Eclipse, Visual Studio, Android, Hadoop, SVN and GIT.

Familiar with Front-End development with PHP, Javascript, Apache and MySQL.

Familiar with Windows system, UNIX system and shell programming.

Research experience

Sep, 2008-present Davis Social Links (DSL) Group, UC Davis

TrustWiki

A new knowledge presentation model which differentiate readers and leverages social network,

data mining and semantic web techniques to present readers with trustworthy knowledge or

unbiased viewpoints.

Responsible for the algorithm design, system analysis and validation.

SocialWiki

Project to prevent vandalism and accelerate reliable collaboration in wiki systems to improve

content quality by incorporating social context.

Responsible for the system design and implementation.

Independently developed a Facebook application under SocialWiki

Social Reader

Employs Google API and our trust model to improve users reading and sharing experience on social

media.

Provides more sufficient control for users to customize friend recommended news.

Provides trust and reputation evaluation for each user to prevent spamming.

Independently developed a prototype, Social Reader, on Facebook.

Agglomerative Clustering with Ordering Constraints

Designed a new type of constraints to increase the accuracy of agglomerative clustering.

Experimented on 20_newsgroup which shows that the constraint obviously improves clustering

accuracy.

Jan,2004-Jun,,2008 Institute of Computer Science & Technology, Peking University

Content-based Image Retrieval System

Implemented extraction module for color, texture, and structure features.

Modified a fuzzy clustering method to enhance the performance of image retrieval.

XML Database

Parsed DTD file and store data of XML file (size of 10M) into relational database.

Used XPath query to reconstruct search result as XML file.

Industrial Experience

Jun, 2011 -Sep, 2011 Software Engineer Intern Google Inc.

Android Remote Control for Google TV Service

Designed a remote control for Google TV service based on Android to improve users experience

Developed Bluetooth communication and voice control functions

Implemented social feature with Google+ API to let users share TV programs, which would also be

used for personalized advertisement.

Applied for a patent as the first patent author (got approved internally and pending now)

Cross Stream

Joined a programming hackathon and developed a platform leveraging Google+, Facebook and Twitter

APIs to let users easily customize Google+, Facebook and Twitter streams together.

Jun, 2010 -Sep, 2010 Quantitative Analyst Intern Ebay(Paypal) Inc.

Risk Modeling with Link Analysis Techniques

Designed link analysis algorithms on transaction graph based on HITS algorithm, which brings a new

perspective to risk modeling at Paypal.

Developed R, Python and Java programs (with JUNG) to process large transaction graphs with millions

of nodes.

Mar, 2006-Jun, 2006 Software Engineer Intern Intel China Research Center

AMT Provision Service

Experimented and configured Kerberos delegation, a key process in ensuring data security between

clients and servers running Windows Server 2003.

Wrote C# code for data transmission between hardware and software.

Improved user interface for IT technicians to manage corporate network and troubleshoot issues.

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