--- title: "Andrew O. Arnold · Amazon — author profile and papers" description: "Andrew O. Arnold, Amazon: 2 papers on Elamur Research (2021), h-index 18 — affiliations, topics, co-authors and who cites them in our library." canonical: "https://research.elamur.ai/free/en/authors/andrew-o-arnold/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/andrew-o-arnold/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Andrew O. Arnold # Andrew O. Arnold Andrew O. Arnold has 2 papers in our library, in 2021, most of them on [Question answering](https://md.research.elamur.ai/free/en/topics/question-answering/), [Summarization](https://md.research.elamur.ai/free/en/topics/summarization/); often with [Bing Xiang](https://md.research.elamur.ai/free/en/authors/bing-xiang/), [Dejiao Zhang](https://md.research.elamur.ai/free/en/authors/dejiao-zhang/), [Feng Nan](https://md.research.elamur.ai/free/en/authors/feng-nan/). 2 papers in our library · 2021 [OpenAlex](https://openalex.org/A5010148946) · [**h-index 18**](https://openalex.org/authors/A5010148946) · [37 works](https://openalex.org/works?filter=author.id:A5010148946) · [2,805 citations](https://openalex.org/works?filter=author.id:A5010148946&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/andrew-o-arnold/#papers) · [🔗 Cited 107 times in our library](https://md.research.elamur.ai/free/en/authors/andrew-o-arnold/cited-by/) · [⭐ Paper Stars ranking: #3880](https://md.research.elamur.ai/free/en/paper-stars/page/39/#star-3880) 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=Andrew+O.+Arnold) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Andrew+O.+Arnold) · [dblp](https://dblp.org/search?q=Andrew+O.+Arnold) · [ACL Anthology](https://aclanthology.org/search/?q=Andrew+O.+Arnold) ## Affiliations [🏢**Amazon** Seattle · United States 2020–2022 · 8 papers*current*](https://md.research.elamur.ai/free/en/companies/amazon/) · [🎓**Carnegie Mellon University** Pittsburgh · United States 2007–2018 · 13 papers](https://md.research.elamur.ai/free/en/universities/carnegie-mellon-university/) · [🎓**Columbia University** New York · United States 2002–2021 · 5 papers](https://md.research.elamur.ai/free/en/universities/columbia-university/) · [🎓**Chinese University of Hong Kong** Hong Kong · Hong Kong 2020–2021 · 2 papers](https://md.research.elamur.ai/free/en/universities/chinese-university-of-hong-kong/) · [🏢**Google** Mountain View · United States 2020 · 2 papers](https://md.research.elamur.ai/free/en/companies/google/) From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. ## Concepts, shelves and topics Of its works in our library: the number of works on each and its rating among them. 📚 Shelves 4 The field of science this work belongs to (OpenAlex fields).[Artificial Intelligence · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/artificial-intelligence/) · [Arts and Humanities · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/) · [Computer Science · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/) · [Language and Linguistics · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/language-and-linguistics/) 🧭 Topics 2 Research subjects and languages the work is about.[Question answering · 1 work](https://md.research.elamur.ai/free/en/topics/question-answering/) · [Summarization · 1 work](https://md.research.elamur.ai/free/en/topics/summarization/) ## Works by year ### 2020s [**2021** 2 papers Andrew O. Arnold's papers of 2021](https://md.research.elamur.ai/free/en/authors/andrew-o-arnold/year/2021/) ## Papers The most cited first (OpenAlex and our library). 1. **[Supporting Clustering with Contrastive Learning](https://md.research.elamur.ai/free/en/papers/zhang-2021-supporting-clustering-contrastive-learning/)** *(2021 · 239 citations)* Deep clustering methods that rely on distances often fail when semantic categories overlap heavily in the embedding space at the start of training. 2. **[Improving Factual Consistency of Abstractive Summarization via Question Answering](https://md.research.elamur.ai/free/en/papers/nan-2021-improving-factual-consistency-abstractive-summarization/)** *(2021 · 128 citations)* Abstractive summarizers such as fine-tuned BART-large often produce fluent summaries that are not supported by the source document or even contradict it. Standard MLE training rewards n-gram overlap, not faithfulness. The authors tackle this problem in two steps. ## Co-authors here 10 co-authors with a page, the most papers together first. - [Bing Xiang](https://md.research.elamur.ai/free/en/authors/bing-xiang/) ×2 - [Dejiao Zhang](https://md.research.elamur.ai/free/en/authors/dejiao-zhang/) ×2 - [Feng Nan](https://md.research.elamur.ai/free/en/authors/feng-nan/) ×2 - [Henghui Zhu](https://md.research.elamur.ai/free/en/authors/henghui-zhu/) ×2 - [Kathleen McKeown](https://md.research.elamur.ai/free/en/authors/kathleen-mckeown/) ×2 - [Ramesh Nallapati](https://md.research.elamur.ai/free/en/authors/ramesh-nallapati/) ×2 - [Cicero Nogueira dos Santos](https://md.research.elamur.ai/free/en/authors/cicero-nogueira-dos-santos/) - [Patrick Ng](https://md.research.elamur.ai/free/en/authors/patrick-ng/) - [Shang-Wen Li](https://md.research.elamur.ai/free/en/authors/shang-wen-li/) - [Zhiguo Wang](https://md.research.elamur.ai/free/en/authors/zhiguo-wang/) ## Venues Where their works here were published, the most works first, with the editions of those that have a page. - [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/): [ACL 2021](https://md.research.elamur.ai/free/en/venues/acl/2021/) - [Conference of the North American Chapter of the Association for Computational Linguistics (NAACL)](https://md.research.elamur.ai/free/en/venues/naacl/): [NAACL 2021](https://md.research.elamur.ai/free/en/venues/naacl/2021/) ## Cited by Papers of our library cite their works 107 times (of the 141,840 papers whose bibliographies we read); [9 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/andrew-o-arnold/cited-by/). Updated 24 October 2026