PeopleofSuperintelligence

Researcher

Jerome Bellegarda

Also known as Jerome R. Bellegarda

Jerome Bellegarda is a speech and language scientist who introduced tied mixtures to acoustic modeling and latent semantics to language modeling. After a 1987 PhD in electrical engineering from the University of Rochester, he worked on automatic speech and handwriting recognition at IBM's research center in Yorktown Heights, New York, from 1988 to 1994. He joined Apple in 1994, spent 28 years there leading human language technologies, and was instrumental in the due diligence behind Apple's acquisition of Siri. The International Speech Communication Association named him a Fellow in 2013 for contributions to statistical modeling algorithms, and leadership in their application to human language processing. Today he is a Distinguished Scientist at Etsy, where he has led generative AI efforts across the company's activities since 2023.

Now at
Etsy, Inc.
Badges

Timeline

  1. 1987

    A Rochester PhD

    He receives a PhD in electrical engineering from the University of Rochester in Rochester, New York, in 1987.

  2. 1988–1994

    Speech recognition at IBM

    From 1988 to 1994, he works on automatic speech and handwriting recognition as a Research Staff Member at the IBM T.J. Watson Research Center in Yorktown Heights, New York. In 1994, he coauthors "The Hub and Spoke Paradigm for CSR Evaluation" with Francis Kubala, Roni Rosenfeld and nine other researchers.

  3. 1994

    Joining Apple in Cupertino

    He joins Apple in Cupertino, California, in 1994. Among his contributions to speech and language work, he introduces tied mixtures in acoustic modeling and latent semantics in language modeling, and many of his innovations go into Apple products. He is instrumental in the due diligence that leads to Apple's acquisition of Siri and its integration into the Apple ecosystem.

  4. 2010

    Latent semantic mapping

    In June 2010, he publishes "Emotion Analysis Using Latent Affective Folding and Embedding" at a NAACL HLT workshop in Los Angeles. In a talk to the Stanford NLP Group, he presents latent semantic mapping, a data-driven framework that broadens latent semantic analysis to model global relationships in large volumes of data that need not be text.

  5. 2013

    An ISCA fellowship

    In 2013, the International Speech Communication Association (ISCA) names him a Fellow for contributions to statistical modeling algorithms, and leadership in their application to human language processing. His paper "Spoken Language Understanding for Natural Interaction" appears at the SIGDIAL 2013 conference in Metz, France, in August 2013.

  6. 2017–2018

    Chairing ISCA fellow selection

    He chairs ISCA's Fellow Selection Committee for its 2017/18 term; the seven-member committee selects the association's new Fellows.

  7. 2019–2022

    Input intelligence at Apple

    In May 2019, as Apple Distinguished Scientist in Human Language Technologies and a Fellow of both the IEEE and ISCA, he gives the seminar "Input & Intelligence @ Apple" at KU Leuven. The IEEE Signal Processing Society names him one of its 2022 Distinguished Industry Speakers. In May 2022, as Apple Distinguished Scientist in Intelligent System Experience, he gives the talk "Input Intelligence on Mobile Devices" to a joint meeting of two IEEE chapters in Atlanta.

  8. Since 2023

    Generative AI at Etsy

    Since 2023, he is a Distinguished Scientist at Etsy, where he leads generative AI efforts across the company's activities. He comes to Etsy after 28 years leading human language technologies as a Distinguished Scientist at Apple.

Career

  1. Since 2023Etsy, Inc.Distinguished Scientist
  2. 1994–2022AppleDistinguished Scientist
  3. 1988–1994IBM ResearchResearch Staff Member

Education

  1. 1987University of RochesterPhD in electrical engineering

From the biography.

  1. Of 943 people shaping AI who worked at Google, 446 work there nowIncludes Apple. Our estimates of where the 943 people shaping AI who worked at Google and Google DeepMind work now: 446 at Google and 452 across 278 other organizations.
  2. Google alumni have founded or led 133 other organizations, more than any other AI labIncludes Apple. We estimate that alumni of 17 major AI labs went on to found or lead 350 other organizations, including 226 they founded, and we trace 472 career moves directly between 23 labs since 2010.
  3. Among employers with 30+ full-time cases, OpenAI leads primary technical role H-1B pay at $310,000, and Amazon, Google and Microsoft file 57% of all casesIncludes Apple. Across 440,669 certified US H-1B filings from 44 employers (FY2020–FY2026), OpenAI leads primary technical role base pay at $310,000 and xAI leads overall base pay at $290,000.
  4. The top 10 organizations employed 22% of people shaping AI in 2025: 51% of company researchers and 21% of university researchersIncludes Apple. We estimate the share of people shaping AI who worked at the top 10 organizations each year from 1955 to 2025, comparing concentration across companies, universities, and institutes and labs.

Colleagues

People named in this biography, and people with dated positions at the same organization in the same years.

Sources and credits

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  1. PSI Seminar: "Input & Intelligence @ Apple" (Jerome Bellegarda, Apple Inc.) — PSI esat.kuleuven.be. Checked 20 October 2026.
  2. IEEE CONECCT 2022.connect.ieeebangalore.org. Checked 20 October 2026.
  3. The Hub and Spoke Paradigm for CSR Evaluation - ACL Anthology aclanthology.org. Checked 20 October 2026.
  4. IEEE SPS SBC Webinar: Input Intelligence on Mobile Devices (By Dr. Jerome R. Bellegarda) : vTools Events | vTools IEEE events.vtools.ieee.org. Checked 20 October 2026.
  5. Emotion Analysis Using Latent Affective Folding and Embedding - ACL Anthology aclanthology.org. Checked 20 October 2026.
  6. Latent Semantic Mapping: Dimensionality Reduction via Globally Optimal Continuous Parameter Modeling nlp.stanford.edu. Checked 20 October 2026.
  7. ISCA - ISCA Fellow Program isca-speech.org. Checked 20 October 2026.
  8. Spoken Language Understanding for Natural Interaction - ACL Anthology aclanthology.org. Checked 20 October 2026.
  9. IEEE EMBS - Atlanta Chapter ewh.ieee.org. Checked 20 October 2026.