--- title: "Andrew Lan — author profile and papers · Question answering" description: "Andrew Lan, University of Massachusetts Amherst: 4 papers on Elamur Research (2020–2025), h-index 24 — affiliations, topics, co-authors…" canonical: "https://research.elamur.ai/free/en/authors/andrew-lan/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/andrew-lan/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Andrew Lan # Andrew Lan Andrew Lan has 4 papers in our library, in 2020–2025, most of them on [Question answering](https://md.research.elamur.ai/free/en/topics/question-answering/), [Dialogue systems](https://md.research.elamur.ai/free/en/topics/dialogue-systems/); often with [Alexander Scarlatos](https://md.research.elamur.ai/free/en/authors/alexander-scarlatos/), [Naiming Liu](https://md.research.elamur.ai/free/en/authors/naiming-liu/), [Nischal Ashok Kumar](https://md.research.elamur.ai/free/en/authors/nischal-ashok-kumar/). 4 papers in our library · 2020–2025 [OpenAlex](https://openalex.org/A5063813962) · [ORCID](https://orcid.org/0000-0002-8475-6600) · [Wikidata](https://www.wikidata.org/wiki/Q102063825) · [**h-index 24**](https://openalex.org/authors/A5063813962) · [158 works](https://openalex.org/works?filter=author.id:A5063813962) · [2,136 citations](https://openalex.org/works?filter=author.id:A5063813962&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 4 works in our library](https://md.research.elamur.ai/free/en/authors/andrew-lan/#papers) · [🔗 Cited 68 times in our library](https://md.research.elamur.ai/free/en/authors/andrew-lan/cited-by/) · [⭐ Paper Stars ranking: #3514](https://md.research.elamur.ai/free/en/paper-stars/page/36/#star-3514) 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+Lan) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Andrew+Lan) · [dblp](https://dblp.org/search?q=Andrew+Lan) · [ACL Anthology](https://aclanthology.org/search/?q=Andrew+Lan) ## Affiliations [🎓**University of Massachusetts Amherst** Amherst Center · United States 2019–2026 · 106 papers*current*](https://md.research.elamur.ai/free/en/universities/university-of-massachusetts-amherst/) · [🎓**Princeton University** Princeton · United States 2017–2019 · 24 papers](https://md.research.elamur.ai/free/en/universities/princeton-university/) · [🎓**Rice University** Houston · United States 2013–2022 · 17 papers](https://md.research.elamur.ai/free/en/universities/rice-university/) From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. ## Fields, topics and concepts Of its works in our library, with the number of works on each. 📚 Shelves 6 The field of science this work belongs to (OpenAlex fields).[Computer Science · 4 works](https://md.research.elamur.ai/free/en/shelves/computer-science/) · [Artificial Intelligence · 4 works](https://md.research.elamur.ai/free/en/shelves/computer-science/artificial-intelligence/) · [Information Systems · 4 works](https://md.research.elamur.ai/free/en/shelves/computer-science/information-systems/) · [Computer Science Applications · 3 works](https://md.research.elamur.ai/free/en/shelves/computer-science/computer-science-applications/) · [Medicine · 1 work](https://md.research.elamur.ai/free/en/shelves/medicine/) · [Health Informatics · 1 work](https://md.research.elamur.ai/free/en/shelves/medicine/health-informatics/) 🧭 Topics 2 Research subjects and languages the work is about.[Dialogue systems · 1 work](https://md.research.elamur.ai/free/en/topics/dialogue-systems/) · [Question answering · 1 work](https://md.research.elamur.ai/free/en/topics/question-answering/) ## Works by year ### 2020s [**2025** 1 paper](https://md.research.elamur.ai/free/en/authors/andrew-lan/year/2025/) · [**2024** 2 papers](https://md.research.elamur.ai/free/en/authors/andrew-lan/year/2024/) · [**2020** 1 paper](https://md.research.elamur.ai/free/en/authors/andrew-lan/year/2020/) ## Papers The most cited first (OpenAlex and our library). 1. **[Context-Aware Attentive Knowledge Tracing](https://md.research.elamur.ai/free/en/papers/ghosh-2020-context-aware-attentive-knowledge-tracing/)** *(2020 · 601 citations)* Knowledge tracing (KT) forecasts how a learner will answer upcoming assessment questions from their earlier answers. 2. **[Improving the Validity of Automatically Generated Feedback via Reinforcement Learning](https://md.research.elamur.ai/free/en/papers/scarlatos-2024-improving-validity-automatically-generated-feedback/)** *(2024 · 47 citations)* LLM-written feedback on students' wrong answers in math must be mathematically sound and must also follow good tutoring practice. 3. **[Training LLM-Based Tutors to Improve Student Learning Outcomes in Dialogues](https://md.research.elamur.ai/free/en/papers/scarlatos-2025-training-llm-based-tutors-improve/)** *(2025 · 38 citations)* LLM tutors are usually built by prompting or fine-tuning models to imitate good teaching practice. They are rarely optimized for whether students actually learn. The authors propose training a small open-source model, Llama 3.1 8B, to produce tutor turns that make a correct student reply more likely while still… 4. **[Improving Socratic Question Generation using Data Augmentation and Preference Optimization](https://md.research.elamur.ai/free/en/papers/kumar-2024-improving-socratic-question-generation-data/)** *(2024 · 16 citations)* Socratic tutoring helps learners fix their own mistakes through a sequence of guiding questions instead of handing over answers. ## Co-authors here 5 co-authors with a page, the most papers together first. - [Alexander Scarlatos](https://md.research.elamur.ai/free/en/authors/alexander-scarlatos/) ×2 - [Naiming Liu](https://md.research.elamur.ai/free/en/authors/naiming-liu/) - [Nischal Ashok Kumar](https://md.research.elamur.ai/free/en/authors/nischal-ashok-kumar/) - [Richard Baraniuk](https://md.research.elamur.ai/free/en/authors/richard-baraniuk/) - [Simon Woodhead](https://md.research.elamur.ai/free/en/authors/simon-woodhead/) ## Venues Where their works here were published, the most works first, with the editions of those that have a page. - [Lecture notes in computer science](https://md.research.elamur.ai/free/en/venues/lecture-notes-in-computer-science/) ×2: [Lecture notes in computer science 2025](https://md.research.elamur.ai/free/en/venues/lecture-notes-in-computer-science/2025/), [Lecture notes in computer science 2024](https://md.research.elamur.ai/free/en/venues/lecture-notes-in-computer-science/2024/) - [ACM SIGKDD International Conference on Knowledge Discovery & Data Mining (KDD)](https://md.research.elamur.ai/free/en/venues/acm-sigkdd-international-conference-on-knowledge-discovery-data-mining-kdd/): [KDD 2020](https://md.research.elamur.ai/free/en/venues/acm-sigkdd-international-conference-on-knowledge-discovery-data-mining-kdd/2020/) - [Workshop on Innovative Use of NLP for Building Educational Applications (BEA)](https://md.research.elamur.ai/free/en/venues/bea/): [BEA 2024](https://md.research.elamur.ai/free/en/venues/bea/2024/) ## Cited by Papers of our library cite their works 68 times (of the 149,439 papers whose bibliographies we read); [17 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/andrew-lan/cited-by/). Updated 3 November 2026