--- title: "Deepak Ravichandran — author profile and papers" description: "Deepak Ravichandran, Google (United States): 2 papers on Elamur Research (2001–2002), h-index 15 — affiliations, topics, co-authors and who cites them in…" canonical: "https://research.elamur.ai/free/en/authors/deepak-ravichandran/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/deepak-ravichandran/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Deepak Ravichandran # Deepak Ravichandran 2 papers on this site · 2001–2002 current affiliation [Google (United States)](https://md.research.elamur.ai/free/en/companies/google/), Mountain View, United States Deepak Ravichandran has 2 papers on this site, in 2001–2002, most of them on [Question answering](https://md.research.elamur.ai/free/en/topics/question-answering/); often with [Eduard Hovy](https://md.research.elamur.ai/free/en/authors/eduard-hovy/), [Chin-Yew Lin](https://md.research.elamur.ai/free/en/authors/chin-yew-lin/), [Ulf Hermjakob](https://md.research.elamur.ai/free/en/authors/ulf-hermjakob/). [OpenAlex](https://openalex.org/A5073610500) · [**h-index 15**](https://openalex.org/authors/A5073610500) · [28 works](https://openalex.org/works?filter=author.id:A5073610500) · [2 858 citations](https://openalex.org/works?filter=author.id:A5073610500&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [2 works on this site](https://md.research.elamur.ai/free/en/authors/deepak-ravichandran/#papers) · [351 citations in our library](https://md.research.elamur.ai/free/en/authors/deepak-ravichandran/cited-by/) · 2 more works in our library The profile is the library's match of the name; two people with one name are not always told apart. Elsewhere: [Google Scholar](https://scholar.google.com/citations?view_op=search_authors&mauthors=Deepak+Ravichandran) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Deepak+Ravichandran) · [dblp](https://dblp.org/search?q=Deepak+Ravichandran) · [ACL Anthology](https://aclanthology.org/search/?q=Deepak+Ravichandran) ## Affiliations - [Google (United States)](https://md.research.elamur.ai/free/en/companies/google/) · Mountain View, United States —current · 2008–2021 on 6 papers - [University of Southern California](https://md.research.elamur.ai/free/en/universities/university-of-southern-california/) · Los Angeles, United States —2001–2006 on 10 papers From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. ## Topics [Question answering 1](https://md.research.elamur.ai/free/en/topics/question-answering/) ## Works by year ### 2000s [**2002** 1 paper](https://md.research.elamur.ai/free/en/papers/ravichandran-2002-learning-surface-text-patterns-question/) · [**2001** 1 paper](https://md.research.elamur.ai/free/en/papers/hovy-2001-semantics-based-answer-pinpointing/) ## Papers The most cited first (OpenAlex and our library). 1. **[Learning surface text patterns for a Question Answering System](https://md.research.elamur.ai/free/en/papers/ravichandran-2002-learning-surface-text-patterns-question/)** *(2002 · 970 citations)* Open-domain QA systems usually depend on heavy external resources such as named entity taggers, WordNet, parsers and ontologies. 2. **[Toward Semantics-Based Answer Pinpointing](https://md.research.elamur.ai/free/en/papers/hovy-2001-semantics-based-answer-pinpointing/)** *(2001 · 263 citations)* The paper tackles a weakness in factoid question answering (QA). Most systems pick the answer by sliding a word-scoring window over retrieved text. That approach cannot mark exact answer boundaries, cannot recognize the semantic type of an answer such as a person or a place, and fails when answer pieces are spread… ## Also in our library 2 more works of theirs are in our library without a page here yet; they will appear as we publish them. ## Co-authors here 3 co-authors with a page, the most papers together first. - [Eduard Hovy](https://md.research.elamur.ai/free/en/authors/eduard-hovy/) ×2 - [Chin-Yew Lin](https://md.research.elamur.ai/free/en/authors/chin-yew-lin/) - [Ulf Hermjakob](https://md.research.elamur.ai/free/en/authors/ulf-hermjakob/) ## Cited by Papers of our library cite their works 351 times (of the 140 884 papers whose bibliographies we read); [15 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/deepak-ravichandran/cited-by/).