Yiting Liao

I am a staff research scientist in the Wireless Communications Research lab at Intel Labs. I am a passionate researcher and engineer in the fields of multimedia communications and wireless networking for more than 10 years. I have engaged in research, software & IP development, prototyping and system design of video communications, user quality of experience (QoE), and low power wireless networking technologies. I have authored or co-authored about 20 academic research papers and have 15+ issued or pending US patents. My area of expertise includes video coding, multimedia communications, adaptive streaming, video quality assessment, video quality of experience (QoE), low power wireless protocols, and internet of things (IoT). I completed my Ph.D. degree in the Department of Electrical and Computer Engineering at University of California, Santa Barbara in 2010. I was with the Video and Voice over Networks (ViVoNets) Lab, under the supervision of Prof. Jerry D. Gibson. I received both bachelor and master degrees from the Department of Electronic Engineering at Tsinghua University, Beijing, China, in 2004 and 2006, respectively.

Education
  • Tsinghua University, Beijing, China
  • M.S., Department of Electronic Engineering, 09/2004-07/2006
    • Thesis: Operating System Design for Digital Trunked Radio Handset
    • Advisor: Prof. Xiaokang Lin
  • Tsinghua University, Beijing, China
  • B.E., Department of Electronic Engineering, 09/2000-07/2004
    • Thesis: New Sequence Design and Performance Simulation in the Fourth Generation Wireless Communication System
Work Experience
  • Staff Research Scientist, Wireless Communications Research, Intel Labs
  • Hillsboro, OR, 05/2011-Present
    • Developed novel video adaptation techniques to optimize multimedia communications over wireless networks and created new end-to-end video solutions to improve network efficiency and user quality of experience (QoE).
    • Conducted subjective video quality tests for OTT videos and designed novel video quality metrics for video codec assessment, network optimization, and end user QoE evaluation. 
    • Developing novel protocols and architecture for low power wireless networks for internet of things (IoT) applications. Applying machine learning techniques to enhance quality of services for IoT networks.
    • Responsibilities include conducting fundamental algorithm and protocol research, building simulation platforms and hardware testbeds, transferring key technology components and strategies to other business units, writing project proposals, patent applications, research papers and standard contributions, and mentoring junior engineers and researchers. Several pieces of my research work have been adopted by Intel products groups to improve their video related products.
  • Research Assistant, Video and Voice over Networks (ViVoNets)Lab, University of California, Santa Barbara
  • Santa Barbara, CA, 04/2007-03/2011
    • Designed novel approaches to enhance error robustness of delivered video over networks. The work includes enhanced error concealment methods for multiple state video coding (MSVC), an optimal mode selection method for MSVC based on estimated end-to-end distortion, and a routing-aware MSVC approach that estimates frame loss probability based on standard routing messages and select reference frames to alleviate error propagations.
  • Research Intern, Dolby Laboratories
  • Burbank, CA, 05/2009-09/2009
    • Proposed a new decoder- and encoder-friendly architecture for inter-prediction with overlapped block motion compensation. Implemented in the H.264/MPEG-4 AVC JM reference software.
  • Research Assistant, Tsinghua University
  • Beijing, China, 01/2004-06/2006
    • Proposed to apply two dimension complementary sequence in MC-CDMA systems and analyzed its performance. Simulated the performance of the sequences with three zero correlation windows.
  • Graduate Intern, STMicroelectronics China R&D Center
  • Shenzhen, China, 07/2005-04/2006
    • Contributed to STMicroelectronics's Wireless Trunked Radio System project. Implemented part of TETRA protocol in C, and developed sample applications based on QT/Embedded.
Publications
  1. Hassnaa Moustafa, Srinivasa V. Somayazulu, Yiting Liao, “Context-aware Content Delivery: Architectures, Standards, and Transport,” Book Chapter in Handbook of Research on Redesigning the Future of Internet Architectures, May 2015.
  2. Jeffrey Foerster, David Ott, Ozgur Oyman, Yiting Liao, Srinivasa Somayazulu, Xiaoqing Zhu, Douglas S. Chan, and Chris Neisinger. “http://www.intel.com/content/dam/www/public/us/en/documents/research/2015-vol19-iss-1-intel-technology-journal.pdf”, Intel Technology Journal 19, no. 1, 2015.
  3. Lark Kwon Choi, Yiting Liao, Barry O’Mahony, Jeffrey R Foerster and Alan C. Bovik, "Extending The Validity Scope of ITU-T P.1202.2," in Proceedings of the Eighth International Workshop on Video Processing and Quality Metrics for Consumer Electronics, Chandler, AZ, Jan. 2014.
  4. Lark Kwon Choi, Yiting Liao and Alan C. Bovik, "Video QoE Models for Compute Continuum," IEEE Communications Society Multimedia Technical Committee E-Letter, Vol. 8, No. 5, pp. 26-49, September 2013.
  5. Yiting Liao, Audrey Younkin, Jeffrey Foerster and Philip Corriveau, "Achieving High QoE Across the Compute Continuum: How Compression, Content, and Devices Interact," in Proceedings of Seventh International Workshop on Video Processing and Quality Metrics for Consumer Electronics, Scottsdale, AZ, January 2013.
  6. Jeffrey Foerster; Ozgur Oyman; Yiting Liao; Mohamed Rehan and Wafaa Taie, "Enhanced adaptive streaming over LTE-advanced wireless networks," in Proceedings of the 46th Asilomar Conference on Signals, Systems and Computers (Asilomar), pp.915-919, November 2012.
  7. Yiting Liao and Jerry D. Gibson, "Routing-aware Multiple Description Video Coding Over Mobile Ad-hoc Networks," IEEE Transactions on Multimedia, Volume 13, Issue 1, February 2011, Pages 132-142.
  8. Yiting Liao and Jerry D. Gibson, "Video Communications Over Wireless Ad-hoc Networks Using Source Coding Diversity and Multiple Paths," Book Chapter in Mobile Ad-Hoc Networks: Protocol Design, InTech, January 2011.
  9. Yiting Liao and Jerry D. Gibson, "Routing-aware Multiple Description Coding with Multipath Transport for Video Delivered over Mobile Ad-hoc Networks," in Proceedings of the First IEEE Workshop on Multimedia Communications and Services (MCS), Miami, FL, December 2010.
  10. Yiting Liao and Jerry D. Gibson, "Frame Corruption Estimation from Route Messages for Video Coding over Mobile Ad Hoc Networks," in Proceedings of the 44th Annual Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, November 2010.
  11. Yiting Liao and Jerry D. Gibson, "Routing-Aware Multiple Description Video Coding Over Wireless Ad-Hoc Networks Using Multiple Paths," in Proceedings of the 17th IEEE International Conference on Image Processing (ICIP), Hong Kong, China, September 2010.
  12. Yiting Liao, Athanasios Leontaris and Alexis M. Tourapis, "A Low Complexity Architecture For Video Coding With Overlapped Block Motion Compensation," in Proceedings of the 17th IEEE International Conference on Image Processing (ICIP), Hong Kong, China, September 2010.
  13. Yiting Liao and Jerry D. Gibson, "Rate-distortion Based Mode Selection for Video Coding over Wireless Networks with Burst Losses," in Proceedings of the 17th International Packet Video Workshop (PV), Seattle, WA, May 2009.
  14. Yiting Liao and Jerry D. Gibson, "Enhanced Error Resilience of Video Communications for Burst Losses Using an Extended ROPE Algorithm," in Proceedings of the 34th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Taipei, Taiwan, April 2009.
  15. Yiting Liao and Jerry D. Gibson, "Refined Error Concealment for Multiple State Video Coding over Ad Hoc Networks," in Proceedings of the 42nd Annual Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, October 2008. (Student Paper Contest Finalist)
  16. Yiting Liao, Chao Zhang and Xiaokang Lin, "T-ZCZ Keying for Infrared Wireless Communications," in Proceedings of SPIE, Volume 5640, January 2005, Pages 524-532.
  17. Yiting Liao, Chao Zhang and Xiaokang Lin, "M-ary Modulation in Indoor Infrared Communication Systems Enhanced by ZCZ Sequences," in Proceedings of SPIE, Volume 5640, January 2005, Pages 497-503.
  18. Chao Zhang, Hancheng Gao, Yiting Liao, Xiaokang Lin and Mitsutoshi Hatori, "Iterative Method for Constructing Complete Complementary Sequences with Lengths of 2mN," Tsinghua Science and Technology - Elsevier, Volume 10, Issue 5, October 2005, Pages 605-609.
Patents 
  1. Quality-aware adaptive streaming over hypertext transfer protocol using quality attributes in manifest file. US 9125073.
  2. Techniques for evaluating compressed motion video quality. US 9204150.
  3. Method and system for generating side information at a video encoder to differentiate packet data. US 13/433821.
  4. Method and system for content-aware multimedia streaming. US 13/571479.
  5. Techniques for evaluating compressed motion video quality. US 14/218352.
  6. Scalable video encoding rate adaptation based on perceived quality. US 14/227729.
  7. Methods for quality-aware adaptive streaming over hypertext transfer protocol. US 14/801199.
  8. Adaptive bitrate streaming for wireless video. US 14/327752.
  9. Quality-aware rate adaptation techniques for dash streaming. US 14/778705.
  10. 5+ patents filed pending publication
Teaching Experience
  • Teaching Assistant. ECE160: Multimedia Systems, UCSB, Spring 2007
Honors and Awards
  • Department Recognition Award, Intel Labs, 2012, 2013, 2014, 2015
  • Dissertation Fellowship, ECE Department, University of California, Santa Barbara, 2010
  • Student Travel Award for IEEE International Conference on Image Processing (ICIP), 2010
  • Graduate Fellowship, University of California, Santa Barbara, 2009
  • Student Paper Contest Finalist, Asilomar 2008, 2008
  • First Class Scholarship, Tsinghua University, 2005
  • Outstanding Bachelor Thesis Award, Tsinghua University, 2004
  • Second Class Prize, China Math and Informatics Olympiad, Fujian, 1999
Professional Activities
  • Technical Program Committee Member: MoWNet 2016, UP-TO-US Workshop 2012, IEEE ICC 2012
  • Invited Reviewer: IEEE Transactions on Circuits and Systems for Video Technology (TCSVT), IEEE Transactions on Multimedia (TMM), IEEE Transactions on Wireless Communications (TWC), IEEE Journal on Selected Areas in Communications (JSAC), Signal Processing – Elsevier, IEEE Wireless Communications and Networking Conference (WCNC), IEEE International Conference on Communications (ICC), IEEE International Conference on Computer Science and Information Technology (ICCSIT)
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