Jamie Callan
Professor
Studies information retrieval, including search engines, neural ranking and retrieval for language models.
Jamie Callan's lab at CMU works on knowledge, QA & retrieval, large language models and recommendation, search & web. 16 papers since 2023, 8 at top venues, mostly SIGIR and ACL. 2 master's students. 43 alumni, most often to Google and Amazon. Applications close .
At a glance
- papers, 2023–2026
- 4/ year
- at T1 venues
- 50%
- PhD students
- 0
- MS students
- 2
- alumni listed
- 43
Papers by yearfrom the lab homepage, 2023–2026
- 3 papers2026 · T1 1 · collecting
- 2 papers2025 · T1 1
- 3 papers2024 · T1 2
- 8 papers2023 · T1 4
T1 venuesOtherVenues: SIGIR, ACL, EMNLP, ICML
Research focuspaper titles that use each topic's words
- Knowledge, QA & retrieval9 papers
- retrieval8 papers
- Large language models5 papers
- Recommendation, search & web2 papers
- search engines0 papers
Paper list
From the lab homepage.
20263 papers
- SIGIR (T1)Agentic search in the wild: Intents and trajectory dynamics from 14m+ real search requests (opens in a new tab)
- ICTIR '26: Proceedings of the International ACM SIGIR Conference on Innovative Concepts and Theories in Information RetrievalDeepResearchGym: A Free, Transparent, and Reproducible Sandbox for Deep Research (opens in a new tab)
- Advances in Information Retrieval - European Conference on IR ResearchLess LLM, more documents: Searching for improved RAG (opens in a new tab)
20252 papers
- SIGIR ForumReport from the 4th
- SIGIR (T1)Tevatron 2.0: Unified document retrieval toolkit across scale, language, and modality (opens in a new tab)
20243 papers
- ACL (T1)Dwell in the beginning: How language models embed long documents for dense retrieval (opens in a new tab)
- SIGIR (T1)Generalizable tip-of-the-tongue retrieval with llm re-ranking (opens in a new tab)
- Advances in Neural Information Processing Systems 38: Annual Conference on Neural Information Processing SystemsSciCode: A research coding benchmark curated by scientists (opens in a new tab)
20238 papers
- EMNLP (T1)Active retrieval augmented generation (opens in a new tab)
- Advances in Information Retrieval - European Conference on IR ResearchCOILCR: Efficient semantic matching in contextualized exact match retrieval (opens in a new tab)
- Proceedings of the ACM SIGIR International Conference on the Theory of Information RetrievalConversational search with random walks over entity graphs (opens in a new tab)
- Proceedings of the ACM SIGIR International Conference on the Theory of Information RetrievalCSurF: Sparse lexical retrieval through contextualized surface forms (opens in a new tab)
- Proceedings of the ACM SIGIR International Conference on the Theory of Information RetrievalKALE: Using a k-sparse projector for lexical expansion (opens in a new tab)
- ICML (T1)PAL: Program-aided language models (opens in a new tab)
- ACL (T1)Precise zero-shot dense retrieval without relevance labels (opens in a new tab)
- SIGIR (T1)Tevatron: An efficient and flexible toolkit for neural retrieval (opens in a new tab)
Where alumni went43 listed, 71% to industry
Industry 22Academia 9
Most often to
- Amazon
- Meta
Also to
- Allen Institute for Artificial Intelligence
- Carnegie Mellon University
- Columbia University
Apply to CMUFall 2027
CMU SCS Computer Science PhD
- Round
- Single round
- Opens
- GRE
- See program page
- English
- TOEFL / IELTS / Duolingo (F-1/J-1 non-native speakers)
- Fee
- USD 100 (USD 80 by early deadline)
Confirmed on the program page.
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Data
Checked against the lab homepage.
- Collected
- Verified
- Papers
- The lab homepage
- Members
- Lab homepage
- Alumni
- Lab homepage
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