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Home > People > Alex Acero
Alex Acero

Alex Acero
RESEARCH MGR/PRINCIPAL RES
.

I am Research Area Manager in Microsoft Research. I manage the Speech group directly and oversee the Natural Language Processing group and the Communication and Collaboration Systems group. People in these teams contributed to many Microsoft products including Xbox Kinect, Ford SYNC, Voice Search, Lync. I also have a team that runs Microsoft’s machine translation service.

Research interests

I have had longstanding interest in developing speech recognition systems that are robust to background noise. In my PhD thesis, I developed a model to express the cepstrum of noisy speech as a function of the cepstrum of clean speech which was the base for algorithms such as CDCN, VTS, and SPLICE. I also worked on a model called uncertainty decoding that estimates the clean speech cepstrum from the noisy speech as a distribution which is then integrated in HMM systems.

I have also worked on various acoustic modeling techniques, including one of the first implementations of VTLN, vocal tract length normalization, for my PhD dissertation, using a linear model on the cepstrum. I'm also interested in discriminative machine learning techniques for acoustic modeling such as conditional random fields and neural networks, and rapid adaptation.

I am interested in language understanding, machine translation, telepresence and multimodal systems.

Brief Bio

Alex Acero joined Microsoft Research in 1994, became manager of the speech grup in 2000 and since 2006 is currently a Research Area Manager directing an organization with over 50 researchers and engineers working on audio, speech, multimedia, communication, and natural language. Prior to joining Microsoft, he was the manager of the speech group at Telefonica Investigacion y Desarrollo (1992-1993) and a Senior Engineer at Apple Computer (1990-1991). He has 93 granted US patents.

Since 2000, Dr. Acero is also Affiliate Professor of Electrical Engineering at the University of Washington and has taught Spoken Language Processing. He has participated in the PhD thesis committee of 7 students.

Alex got his Ph.D. in EE from Carnegie Mellon University in 1990, his MS from Rice University in 1987 and a Telecommunications Engineering Degree from the Universidad Politecnica de Madrid in 1985, all in Electrical Engineering.

Activities in IEEE Signal Processing Society

Boards/Committees

  • President-Elect (2012-2013), President (2014-2015) and Past-President (2016-2017).
  • Director Industrial Relations (2010-2012). Also part of Membership Board (2010-2012).
  • Vice President Technical Directions (2007-2009).
  • Board of Governors: Member-at-large (2004-2005) and (2010-2012). Also member of the Long-Range Planning and Implementation Committee and TC Review Committee.
  • Chair (2000-2002) and member (1996-2000) of the Speech Technical Committee.
  • IEEE Spoken Language Processing Student Travel Grant (since 2004). Sponsorship (along with Drs. Huang and Hon) of this grant to the best ICASSP student papers in the speech area since 2004, using proceeds from their textbook Spoken Language Processing (Prentice Hall, 2001).
  • Member of the IEEE Signal Processing Society since 1984.

Conferences

  • Technical Co-Chair of IEEE ESPA 2012. Emerging Signal Processing Applications is a new conference devoted to practitioners.
  • General Co-Chair of the 2001 IEEE Workshop on Automatic Speech Recognition and Understanding.
  • Sponsorship Chair of the 1999 IEEE Workshop on Automatic Speech Recognition and Understanding.
  • Publications Chair of ICASSP98. Built ICASSP’s first electronic submission website.

Journals

Other Service

  • Sponsorship co-chair of Interspeech 2006.
  • Tutorials Chair at HLT 2004.
  • Member Editorial Board of Computer, Speech and Language. Elsevier (1993- 2009).
  • Member Editorial Board for Computer, Speech and Language (1994-present).
  • Tutorial on Spoken Language Processing, at ICSLP 2004.
  • Tutorial on Multimodal Language Processing, with M. Rahim, at ICASSP 2002.
  • Microsoft’s Diversity Leadership Council.
  • Microsoft’s Latin America executive sponsor.

Personal

Alex was born in Madrid, Spain. He's married to Donna and is the proud father of Nicolas and Marcos. He likes to play the piano, soccer and sip a good wine, though not at the same time ;-)

Books
Book Chapters
Journal Papers

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    • Li Deng, Kuansan Wang, Alex Acero, Hsiao-Wuen Hon, Jasha Droppo, Constantinos Boulis, Ye-Yi Wang, Derek Jacoby, Milind Mahajan, Ciprian Chelba, and Xuedong D. Huang, Distributed Speech Processing in MiPad’s Multimodal User Interface, in IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, vol. 10, no. 8, pp. 605-619, Institute of Electrical and Electronics Engineers, Inc., 2002

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    Conference Papers

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      Tech Reports

      Last updated: June 2, 2011

      E-mail: alexac at microsoft dot com
      U.S.Mail: Microsoft Corporation, One Microsoft Way, Redmond WA, 98052-6399, USA
      Tel: (425) 706-1597
      Fax: (425) 706-7329 (This is the main MS FAX number so make sure to send documents to my attention)