Joined August 2013
14 Photos and videos
Harry Scells retweeted
18 Jul 2025
Come join us at the poster session at ICTIR 2025 to discuss: - Axioms for Retrieval-Augmented Generation webis.de/publications.html#m… - Learning Effective Representations for Retrieval Using Self-Distillation with Adaptive Relevance Margins webis.de/publications.html#g…
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Harry Scells retweeted
18 Jul 2025
Honored to win the ICTIR Best Paper Honorable Mention Award for "Axioms for Retrieval-Augmented Generation"! Our new axioms are integrated with ir_axioms: github.com/webis-de/ir_axiom… Nice to see axiomatic IR gaining momentum.
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Harry Scells retweeted
Go to stall 091 if you want to check out the poster of this @ir_glasgow work by @DanielTian97 called "Am I on the Right Track?" #SIGIR2025 (done w/t @JinyuanF, @debforit, @mengzaiqiao and @craig_macdonald)
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Harry Scells retweeted
It's a busy day for @DanielTian97! After his earlier presentation, he's now presenting his poster that studies the search behaviour of agentic rag using QPP. *Go to poster 91 and have a chat! * @ir_glasgow #SIGIR2025
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Harry Scells retweeted
16 Jul 2025
Happy to share that our paper "The Viability of Crowdsourcing for RAG Evaluation" received the Best Paper Honourable Mention at #SIGIR2025! Very grateful to the community for recognizing our work on improving RAG evaluation. 📄 webis.de/publications.html#g…
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Harry Scells retweeted
🏆 Our paper "GINGER: Grounded Information Nugget-Based Generation of Responses", co-authored with @krisztianbalog, won the Best Short Paper Award at #SIGIR2025! Grateful to the community for the recognition 🙌 Check out the code & poster here: github.com/iai-group/ginger-…
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Harry Scells retweeted
Want to know how to make bi-encoders more than 3x faster with a new backbone encoder model? Check out our talk on the Token-Independent Text Encoder (TITE) #SIGIR2025 in the efficiency track. It pools vectors within the model to improve efficiency dl.acm.org/doi/10.1145/37263…
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Harry Scells retweeted
Huge congratulations to @macavaney on receiving the prestigious ACM SIGIR Early Career Researcher Award in the research category! This well-deserved recognition highlights the excellence & impact of his work in the IR community 👏🎉#sigir2025 Cc @GlasgowCS @UofGlasgow @ACMSIGIR
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Harry Scells retweeted
15 Jul 2025
Replying to @LukasGienapp
@LukasGienapp presents "The Viability of Crowdsourcing for RAG Evaluation" at #SIGIR2025 The paper is available at: webis.de/publications.html#g…
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Harry Scells retweeted
Now it’s @MrParryParry presenting the reproducibility efforts of a large team of researchers in relation to the shelf life of test collections #sigir2025
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Harry Scells retweeted
A comprehensive and nicely delivered tutorial by @macavaney et al. on learned sparse retrieval methods and their applications across various tasks. Slides and other materials are available via the link shown in the last image. #SIGIR2025
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Harry Scells retweeted
Thank you @cadurosar for shout-out of Lightning IR in the LSR tutorial at #SIGIR2025 If you want to fine your own LSR models, check out our framework at github.com/webis-de/lightnin…
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Harry Scells retweeted
22 Jun 2025
Our paper on self-distillation for training bi-encoders got accepted at #ICTIR2025! By exploiting pretrained encoder capabilities, our approach eliminates expensive teacher models and batch sampling while maintaining the same effectiveness.
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Harry Scells retweeted
28 Apr 2025
Today, Harry Scells @hscells from University of Tübingen is giving an #IRTalk entitled "Quantifying and Applying Green IR". Details: samoa.dcs.gla.ac.uk/events/v… @GlasgowCS @ir_glasgow
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Harry Scells retweeted
At 15:00 on 28th April, Harry Scells @hscells from University of Tübingen will give an #IRTalk entitled "Quantifying and Applying Green IR". Details: samoa.dcs.gla.ac.uk/events/v… @GlasgowCS @ir_glasgow

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Harry Scells retweeted
10 Apr 2025
Yesterday I presented our #ECIR2025 paper "An Investigation of Prompt Variations for Zero-shot LLM-based Rankers", with @shuoqi_sun @ShengyaoZhuang @dylan_wangs. Yes, it was in a church! Slides at ielab.io/files/guido-2025040… and paper at arxiv.org/abs/2406.14117
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Harry Scells retweeted
Now it's workshop time here at #ECIR2025! @andrew_parry is kicking things off at the QPP workshop presenting his work (w/ @H1iReimer, Simon Ruth, @maik_froebe, @hscells) on Corpora Performance Prediction. @ir_glasgow @glasgowcs
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Harry Scells retweeted
ESSIR 2025, the European Summer School on Information Retrieval in Wolverhampton, UK, July 7-11! Dive into cutting-edge Information Retrieval & AI, network with experts. Plus, don’t miss the interactive FDIA Symposium! 🎓 👉 2025.essir.eu @essir_eu #IR #AI #ECIR2025
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Harry Scells retweeted
What an honor to receive both the best short paper award and the best paper honourable mention award at #ECIR2025. Thank you to all the co-authors @maik_froebe @hscells @ShengyaoZhuang @bevan_koopman @guidozuc @bennostein @martinpotthast @matthias_hagen 🥳
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Harry Scells retweeted
Short: Rank-DistiLLM: Closing the Effectiveness Gap Between Cross-Encoders and LLMs for Passage Re-ranking webis.de/publications.html#s… Full: Set-Encoder: Permutation-Invariant Inter-Passage Attention for Listwise Passage Re-Ranking with Cross-Encoders webis.de/publications.html#s…
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