Last Updated on June 10, 2009
	Yumao Lu	Research Interests
	Ph. D. (UCLA 2005)	Education
	Be Friends, Stay Linked. Join My Professional Network.	Experience
		Patents (updated)
		Publications (updated)
		Awards and Nomination
	Senior Scientist	Academic Services
	Yahoo! Inc.	Media Report (new)
	701 First Ave,	Teaching
	Sunnyvale, CA 94089	Graduate Courses
	Tel. (408)349-2098	Links

Dr. Yumao Lu

Yumao Lu is currently a senior scientist at Yahoo! Research Labs in Sunnyvale California. He obtained his Ph. D. degree in Electrical Engineering from the University of California Los Angeles in 2005. His research has been on computational models for large scale systems and its applications in machine learning, information retrieval, natural language processing, and their intersections.

Research

Natural Language Processing (NLP) and Information Retrieval (IR) and their intersection;

Machine Learning, Computational Models for Large Scale System;

Learning to Rank, Text Mining, Semantic Text Matching;

Operations Research, Semi-definite Programming;

Medical Imaging, Image Segmentation.

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Education

Ph. D. in Electrical Engineering, Electrical Engineering, University of California, Los Angeles, 2005.

M. Phil. in Industrial Engineering and Engineering Management, Industrial Engineering and Logistics Management, Hong Kong University of Science and Technology, 2001.

B. Eng. in Automatic Control, Control Science and Engineering, Huazhong University of Science and Technology, 1999.

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Working Experience

Senior Scientist, Yahoo! Labs, Search Sciences, Sunnyvale, California, Dec. 2005-present.

Temporary Technical Staff, Siemens Corporate Research, Department of Intelligent Vision and Reasoning, Princeton, New Jersey, Dec. 2004- Sept. 2005.

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Licensed U.S. Patents

Xin Li, Nawaaz Ahmed, Fuchun Peng, and Yumao Lu, Query Rewriting with Spell Correction Suggestions Using a Generated Set of Query Features, Patent No. 7,630,978, Yahoo Inc!, 2009.

Lin Hong, Yumao Lu and Hong Shen, System and Method for Detecting Ground Glass Nodules in Medical Images, Patent No. 7,555,152, Siemens Corporate Research, 2009.

Pending U.S. Patents

Yumao Lu, Fuchun Peng, and Benoit Dumoulin, Personalize Search Results for Search Queries with General Implicit Local Intent, Yahoo! Inc., Application No. 12/694,515, Filed on Jan. 27, 2010

Yumao Lu, Lei Duan, Fan Li, Benoit Dumouline and Xing Wei, Semantic and Text Matching Techniques for Network Search, Yahoo! Inc. Application No. 12/563,357, Filed on Sept 21, 2009

Yumao Lu, Detect, Index, and Retrieve Term-Group Attributes for Network Search, Yahoo! Inc. Application No. 12/563,347, Filed on Sept 21, 2009

Huihsin Tseng, Longbin Chen, Yumao Lu, and Fuchun Peng, Query-URL N-Gram Features in Web Ranking, Yahoo! Inc., Application No. 12/541,063, Filed on Aug. 13 2009

Yumao Lu, Fuchun Peng, and Benoit Dumoulin, Predictive Person Name Variants for Web Search with Statistical Machine Translation Models, Yahoo! Inc., Application No. 12/480,628, Filed on Jun. 8 2009

Yumao Lu and Benoit Dumoulin, System and Method for Ranking Web Searches with Quantified Semantic Features, Yahoo! Inc., Application No. 12/360,016, Filed on Jan. 26 2009

Fuchun Peng, Xing Wei, Yumao Lu, Xin Li, Donald Metzler, Hang Cui and Benoit Dumoulin, System and Method for Improved Search Relevance Using Proximity Boosting, Yahoo! Inc., Application No. 12/360,008, Filed on Jan. 26 2009

Yumao Lu and Benoit Dumoulin, Topical Ranking in Information Retrieval, Yahoo! Inc., Application No. 12/354,533, Filed on Jan. 15 2009

Yumao Lu and Benoit Dumoulin, Selective Term Weighting for Web Search Based on Semantic Parsing, Yahoo! Inc., Application No. 12/256,371, Filed on Oct. 22 2008

Yumao Lu and Benoit Dumoulin, Automatic Query Concepts Identification and Drifting for Web Search, Yahoo! Inc., Application No. 12/252,220, Filed on Oct. 15 2008

Yumao Lu, Nawaaz Ahmed, Fuchun Peng and Benoit Dumoulin, Name Verification Using Machine Learning, Yahoo! Inc., Application No. 12/060,154, Filed on Mar. 31 2008

Fuchun Peng, Yumao Lu, Nawaaz Ahmed, and Bin Tan, Multi-Term Search Result with Unsupervised Query Segmentation Method and Apparatus, Yahoo! Inc., Application No. 12/048,715, Filed on Mar. 14 2008

Yumao Lu, Nawaaz Ahmed, Fuchun Peng, and Marco Zagha, Local Query Identification and Normalization for Web Search, Yahoo! Inc., Application No. 12/015,448, Filed on Jan 16 2008.

Yumao Lu, Nawaaz Ahmed, Fuchun Peng, and Xin Li, Method and Apparatus for Performing Multi-Phase Ranking of Web Search Results by Re-Ranking Results Using Feature and Label Calibration, Yahoo! Inc., Application No. 11/942,410, Filed on Nov. 19 2007.

Fuchun Peng, Nawaaz Ahmed, Yumao Lu, and Marco Zagha, Predictive Stemming for Web Search with Statistical Machine Translation Models, Yahoo! Inc., Application No. 11/843,560, Filed on Aug. 22 2007.

Fuchun Peng, Nawaaz Ahmed, Xin Li, and Yumao Lu, Word Pluralization Handling in Query for Web Search, Yahoo! Inc., Application No. 11/701,736, Filed on Feb. 14 2007.

Yumao Lu, Fuchun Peng, Xin Li and Nawaaz Ahmed, Navigational Query Identification Techniques, Yahoo! Inc., Application No. 11/514,076, Filed on Aug. 30 2006

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Publications

Xing Wei, Fuchun Peng, Huihsin Tseng, Yumao Lu, and Benoit Dumoulin, 2009, "Context Sensitive Synonym Discovery for Web Search Queries", The 18th ACM Conference on Information and Knowledge Management (CIKM 2009), (short paper), Hong Kong, November 2009

 

Yumao Lu, Fuchun Peng, Gilad Mishne, Xing Wei, and Benoit Dumoulin, 2009, "Improving Web Search Relevance with Semantic Features", The 14th Annual International ACM SIGDAT Conference on Empirical Methods in Natural Language Processing (EMNLP 2009), (Oral Presentation), Singapore, August 2009

 

Yumao Lu, Vwani Roychowdhury and Lieven Vandenberghe, 2008, "Distributed Parallel Support Vector Machines in Strongly Connected Networks", IEEE Transactions on Neural Networks, vol. 19, no. 7, pp 1167-1178, July 2008

 

Yumao Lu, and Vwani Roychowdhury, 2008, "Parallel Randomized Sampling for Support Vector Machine (SVM) and Support Vector Regression (SVR)", Knowledge and Information Systems, vol. 14, no. 2, pp 233-247, 2008

 

Fuchun Peng, Nawaaz Ahmed, Xin Li, and Yumao Lu, 2007, "Context Sensitive Stemming for Web Search", The 30th Annual International ACM SIGIR Conference on Research & Development on Information Retrieval (SIGIR 2007), (Acceptance rate 17.5%), Amsterdam, Netherlands, July 2007

 

Yumao Lu, Fuchun Peng, Xin Li and Nawaaz Ahmed, 2006, "Coupling Feature Selection and Machine Learning Methods for Navigational Query Identification", ACM Fifteenth Conference on Information and Knowledge Management (CIKM 2006), (Acceptance rate 15%), Arlington, VA, November 2006

 

Yumao Lu and Vwani Roychowdhury, 2006, "Parallel Randomized Support Vector Machine", Nominated Paper for Best Student Paper Award , The 10th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2006), (Acceptance rate 19.9%), Singapore, April 2006, Lecture Notes in Computer Science, Springer Berlin / Heidelberg, vol. 3918, pp 205-214, 2006

 

Liming Liu and Yumao Lu, 2004, "Dynamic Traffic Control for Web-Server Networks", Computer Networks, Vol. 45, No. 4, pp. 532-536.

 

Yumao Lu, 1999, "Seven Often Used Techniques in Rebutment", Speech and Eloquence (in Chinese), ISBN 1006-4699, pp. 28-30, April, 1999. Published online at http://www.koucai.com/lunbian/show.asp?id=1696, on December 27 2006.

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Awards and Normination

Nominated Paper for Best Student Paper Award, (5 out of 501 papers), The 10th Pacific-Asia Conference on Knowledge Discovery and Data Mining, Singapore, 2006.

National First Prize, National Instrument Society of China, China, 1998.

National Champion, First National University TV Debate Championship, Beijing, China, 1997.

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Academic Services

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Media Report

How a Search Engine Might Handle Singular and Plural Queries, Bill Slawski, SEO by the Sea, Internet Marketing and Search Engine Optimization (SEO) Research, Consulting and Services, August 12^th, 2008

The article reviewed algorithms of handling singular and plural queries. Our work was compared with our competitor's.

 

Redefining Navigational Queries to Find Perfect Sites, Bill Slawski, SEO by the Sea, Internet Marketing and Search Engine Optimization (SEO) Research, Consulting and Services, March 13^th, 2008

The article reviewed algorithms of detecting navigational queries. Our work was compared with our competitor's.

 

Context Sensitive Stemming for Web Search, Bill Slawski, SEO by the Sea, Internet Marketing and Search Engine Optimization (SEO) Research, Consulting and Services, June 11^st, 2007

The article reviewed our paper published in SIGIR 2007.

 

Editorial Review of Six Selected Paper from the PAKDD 2006, Wee Keong Ng, Masaru Kitsuregawa and Jianzhou Li, Knowledge and Information System, May 10^th, 2007

The article published in the KAIS journal by editors reviewed PAKDD2006 and reviewed our paper amoung six selected articles.

 

Appraisal and Criticism of the First National TV Debate Championship (in Chinese), Jing Zhang, Speech and Eloquence, (www.koucai.com.cn), Octorber 24^th, 2006

The article reviewed the First National TV Debate Championship, where my team won the the National Champion.

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Teaching

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Graduate Course Work

Statistical Machine Learning

Operations Research (Optimization)

Signal Processing

Communications

Data System

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Links

Join my professional network. Be Friends, Stay Linked

Dr. Yumao Lu, my official site

Dr. Yumao Lu at Yahoo! Labs, me in Yahoo!

Curious Frog, my un-official site

Permission may be granted upon request.

 

Supervisors' Sites

Prof. Vwani Roychowdhury, my supervisor at UCLA

Prof. Lieven Vandenberghe, my supervisor at UCLA

Prof. Liming Liu, my supervisor at HKUST

 

My Current Work

Yahoo Search

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