Dipanjan Das
Dipanjan Das is an AI researcher whose work spans multilingual parsing, language-model analysis, and factuality benchmarks. He earned computer science and language technology degrees at IIT Kharagpur and Carnegie Mellon, and his multilingual sequence-model research won ACL's best paper award in 2011. His coauthored Universal Dependency paper received ACL's 2023 Test-of-Time award, and a BERT study traced how its layers process language. As of October 2026, he is a Senior Director of Research at Google DeepMind, where he leads language-technology teams and contributes to Gemini; in January 2026, he coauthored DeepSearchQA, a benchmark for deep research agents.
- Now at
- Google DeepMind
- Works
- 104
- Citations
- 12,924
- h-index
- 43
- Badges
Publication numbers from OpenAlex, as of 19 October 2026.
Timeline
-
2005
A computer science degree
At IIT Kharagpur, he earns a B.Tech. in Computer Science and Engineering in 2005.
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2008–2012
Degrees at Carnegie Mellon
At Carnegie Mellon's Language Technologies Institute, he completes a Master of Language Technologies in 2008 and a PhD in Language and Information Technology in 2012. Google Inc. is his employer upon graduation. His work on multilingual learning of sequence models wins ACL's best paper award in 2011.
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2013
Universal dependency annotation
He coauthors Universal Dependency Annotation for Multilingual Parsing at ACL in 2013.
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2019
BERT's language hierarchy
In 2019, he coauthors BERT Rediscovers the Classical NLP Pipeline. The study finds that BERT layers process part-of-speech tags first, followed by constituents, dependencies, semantic roles, and coreference.
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2023
A Test-of-Time award
ACL names his 2013 Universal Dependency paper a 10-Year Test-of-Time Paper Award winner in 2023.
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2024
A factuality benchmark for LLMs
In December 2024, he helps lead FACTS Grounding, a benchmark that measures whether long-form LLM responses stay factually grounded in supplied documents. He serves as program co-chair for COLM 2024, the first conference dedicated to language modeling.
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As of October 2026
Language research at Google DeepMind
His earlier Google work includes Google Brain and Google Research. In January 2026, he coauthors DeepSearchQA, a 900-prompt benchmark that tests agents on difficult multi-step information-seeking tasks across 17 fields. He is a Senior Director of Research at Google DeepMind, where he leads distributed teams working on language technologies and contributes to Gemini and factual text generation.
Career
- Since 2022Google DeepMindSenior Director of Research
- 2019–2022University of California, Santa Barbara
- 2018–2019Carnegie Mellon University
- 2012–2025Google
Education
- 2012Carnegie Mellon UniversityPhD in Language and Information Technology
- 2008Carnegie Mellon UniversityMaster of Language Technologies
- 2005Indian Institute of Technology KharagpurB.Tech. in Computer Science and Engineering
Most-cited works
- A Decomposable Attention Model for Natural Language Inference
- BERT Rediscovers the Classical NLP Pipeline
- BLEURT: Learning Robust Metrics for Text Generation
- Gemini: A Family of Highly Capable Multimodal ModelsWith Angeliki Lazaridou, Anja Hauth, Clemens Meyer, David Silver, Emily Pitler and Fabio Viola
- A Universal Part-of-Speech TagsetWith Ryan McDonald
Sources and credits
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- Dipanjan Das
- Dipanjan Das - Language Technologies Institute - School of Computer Science - Carnegie Mellon University
- Universal Dependency Annotation for Multilingual Parsing
- BERT Rediscovers the Classical NLP Pipeline
- ACL Test-of-Time Papers Award Recipients
- Dipanjan Das
- FACTS Grounding: A new benchmark for evaluating the factuality of large language models
- DeepSearchQA: Bridging the Comprehensiveness Gap for Deep Research Agents





