Harry Scells

📣 Sponsorship opportunities are open for ECIR 2027! Connect with 450+ researchers, engineers and industry practitioners working in search, information retrieval and AI. 👉 www.ecir2027.co.uk/sponsors 📩 sponsorship@ecir2027.co.uk Please share with organisations who might be interested! #ECIR2027

Very good news – our Scholarly Information Access workshop SCOLIA has been accepted for @ecir2027.bsky.social in Southampton! 🎉 We will publish a call for papers soon – stay tuned! sites.google.com/view/bir-ws/...

Very good news – our Scholarly Information Access workshop SCOLIA has been accepted for @ecir2027.bsky.social in Southampton! 🎉 We will publish a call for papers soon – stay tuned! https://sites.google.com/view/bir-ws/home?authuser=0

CLEF'26 starting in Jena! Will be great to see all the tasks people have been working on over the year. I'm sure there will be plenty of inspiration for new visions for the future of IR -> desires-conf.org/2027/ #CLEF2026 #InformationRetrieval #NLP #DESIRES2027

🦁LION Lab is hiring! 🧑‍🔬One fully funded PhD student (TVL-13 100%) for 3 years 💉Topic: Interpretability for Protein Language Models 👥Advised by @weissweiler.bsky.social together with Clara Schoeder 🌍Leipzig, Germany 🔗Apply by Oct 15: lionlabnlp.github.io/jobs/ai4pf/ Please share! #NLProc #NLP

PhD position in my lab! I'm looking for a candidate with a background in media psychology or communication science. Candidates who bridge our two research lines (social media use and HMC) are especially welcome. Please share! #DGPS2026 #ECC2026 iwm-tuebingen.de/de/karriere/...

Also ECIR 2027 short paper submission is open now! www.ecir2027.co.uk/call-for-sho... #ECIR2027

📣 The data for the UP2DATE@SCOLIA shared task about #systematicreview updates has now been released! Visit up2date.health-nlp.com for the details!

#IRRJ will support the call for abstracts for the 5th International Conference on the Design of Experimental Search & Information REtrieval Systems #DESIRES, #DESIRES2027 https://irrj.org/announcement/view/358

ECIR 2027 is the major European Information Retrieval conference taking place in Southampton, UK. We are calling for papers in the various tracks.

ECIR 2027 is our major European Information Retrieval conference taking place in Southampton, UK. We are calling for papers in the various tracks.

📢 ECIR 2027 Call for Papers 👉 www.ecir2027.co.uk/calls-home #ECIR2027 is the prime European forum for the presentation of original research in the field of #IR, and will take place as a physical (in-person) conference from 21-25 March 2027 at Southampton Football Club, Southampton, England, UK.

Big thanks to @hscells.bsky.social for presenting this work in Melbourne, and of course also to my co-authors @martin-potthast.com , Andrew Yates, and Eugene Yang! doi.org/10.1145/3805...

Super happy that our paper “Topic-Specific Classifiers are Better Relevance Judges than Prompted LLMs” just won Best Student Paper at #SIGIR2026🏆 It argues against the reflex to reach for an LLM whenever you need relevance judgments. What we found 🧵:

Melbourne is the place to be this week! 🇦🇺 #SIGIR2026 has officially kicked off, and while we miss Carsten Eickhoff, Harrisen Scells, and Gregory Polyakov back in the office, the Health NLP Lab is well represented in Melbourne this week.

#DESIRES (the International Conference on the Design of Experimental Search & Information REtrieval Systems) is back! DESIRES has always been* the* conference for discussing (visionary!) search systems. Started in 2018 thanks to Gianmaria Silvello and Omar Alonso. General Chairs in 2027 are […]

Call for papers FDIA 2026: PhD Symposium on Future Directions in Information Access at ESSIR 2026 Present your research. Receive valuable feedback. Connect with fellow researchers. Accepted works can be presented @ecir2027.bsky.social! 2026.essir.eu/fdia/ #informationRetrieval #PhD #SummerSchool

Excellent opportunity for PhD students and early-career researchers!

Two papers accepted at SIGIR'26 in Melbourne! Both tackle the same question: how do we scale IR evaluation reliably without compromising on human judgment as the gold standard? Spoiler: LLMs-as-a-judge does not work. 🧵1/5

#ECIR2027 is going to Southampton Football Club, England, UK in 2027! We encourage you to join us at www.ecir2027.co.uk and follow this page for updates. #IR #InformationRetrieval

At our SCOLIA workshop at #ECIR2026 we introduced shared tasks. UP2DATE@SCOLIA focusses on the development of new methods to assist in updating systematic reviews. Interested? Check out https://up2date.health-nlp.com! @hscells @potthast @carsten @ecir2026.eu

Jan Heinrich Merker presents work - with Harrison Scells @hscells.bsky.social and Martin Potthast @martin-potthast.com - on better support infra for mining the Archive Query Log. See also: https://github.com/webis-de/archive-query-log (Followup on the earlier SIGIR paper.) #ECIR2026

Hello #ECIR2026, the proceedings of our SCOLIA workshop on Thursday are online – https://ceur-ws.org/Vol-4187/. Looking forward to (hopefully) seeing you. Happy reading!

Hello #ECIR2026, the proceedings of our SCOLIA workshop on Thursday are online – ceur-ws.org/Vol-4187/. Looking forward to (hopefully) seeing you. Happy reading!

🏆 Congratulations to our #ECIR2026 Reviewer Award & SPC Member Award recipients! Your commitment to high-quality peer review keeps our community thriving. Thank you! 🙏

I've already collected my first two stickers for the @ecir2026.eu Collab-a-thon. If you're in Delft today, don't muss out the first collab-a-thon session at 4pm in LAB.115 🤝 #collab-a-thon #collaboration #research #ecir

Going to @ecir2026.eu in Delft? Or need another reason to go there? Please drop by SCOLIA 2026, our Second International Workshop on Scholarly Information Access to enjoy some exciting presentations! Our programme is online now at https://sites.google.com/view/bir-ws/scolia-2026. See you in Delft!

We're hiring a Scientific Director for our AI Methods & Software Hub in Tübingen! This is a unique opportunity to build and lead a central hub at the intersection of cutting-edge ML research and scientific applications. Deadline: 30 April 2026. More info: uni-tuebingen.de/en/128980#c2...

#ECIR2026 opening by Avishek Anand with photos of Delft when it is not rainy

One of my fav bars in Delft is https://www.locuspublicus.nl/ #ecir2026 #beer

Quite impressive! The Radboud University Information Retrieval group's contributions to #ECIR2026: nice poster made by @harrieo.bsky.social

Tomorrow, ECIR 2026 kicks off in Delft! 🎉 Day 1: tutorials & workshops at TU Delft's Aula, ending with a welcome reception. With over registered 450 attendees it's going to be a great few days. Don't forget: clocks spring forward tonight! ☀️🕐 We're bagged and ready 🎒 #ECIR2026 #IR #NLP #RecSys

We’re launching a new AI Methods & Software Hub in the ML cluster and are looking for a Director to build and lead it! Shape how ML/AI and software drive scientific discovery—in close collaboration with AI and domain scientists—within an extremely vibrant and collaborative ecosystem!

The presentations for the #IRRJ session at the at the 48th European Conference on Information Retrieval #ECIR2026 are now in the conference schedule at: https://ecir2026.eu/programme/program-schedule/program/detail/38/irrj-papers-presentations

Become part of the DAAD & Humboldt Community 👋– a social network for fellows, alumni, and partners! Find out more and join now: daad-humboldt-community.de @daadworldwide.bsky.social

I am happy to share that I defended my PhD thesis this week. I want to thank all the people I collaborated with and met at conferences and workshops over the years! Especially a big thank you to my PhD supervisor, Matthias Hagen, and to Laura Dietz and Udo Kruschwitz for reviewing my thesis.

Going to @ecir2026.eu in Delft? Or need another reason to go there? Please drop by SCOLIA 2026, our Second International Workshop on Scholarly Information Access to enjoy some exciting presentations! Our programme is online now at sites.google.com/view/bir-ws/.... See you in Delft!

CFP – ECIR 2026 Join us at the 48th European Conference on Information Retrieval (ECIR 2026) 📍 29 March – 2 April 2026 📍 Delft, The Netherlands 🔎 Full program: ecir2026.eu/programme/pr... 📝 Register now: ecir2026.dryfta.com/registration... We look forward to welcoming you to Delft at ECIR 2026!

We just released "German Commons", the largest openly-licensed German text dataset for LLM training: 154B tokens with clear usage rights for research and commercial use. huggingface.co/datasets/coral-nlp/german-commons

We are proud to announce that we are now indexed by @dblp! Click below for Volume 1, Number 1, 2025 https://dblp.org/db/journals/irrj/irrj1.html

The organization of #ECIR2026 has started! We just had our first call with all track chairs. With the calls now finalized, online and distributed across mailing lists, we’re moving on to the rest of the conference preparation! @ecir2026.eu 📍 Delft, 30 Mar – 2 Apr 2026 👉 ecir2026.eu

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_... Nice to see axiomatic IR gaining momentum.

Congrats to the authors @lgnp.bsky.social @timhagen.bsky.social @maik-froebe.bsky.social @matthias-hagen.bsky.social @benno-stein.de @martin-potthast.com @hscells.bsky.social from @unikassel.bsky.social @hessianai.bsky.social @scadsai.bsky.social @unituebingen.bsky.social @uni-jena.de & Uni Weimar

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...

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/...

Now @fschlatt.bsky.social presents "TITE: Token-Independent Text Encoder for Information Retrieval" at #SIGIR2025 Paper: webis.de/publications...

Lukas Gienapp presents "The Viability of Crowdsourcing for RAG Evaluation" at #SIGIR2025 The paper is available at: webis.de/publications...

Lucky to witness #IRRJ editor-in-chief @djoerd.idf.social.ap.brid.gy signing a copy of the first edition of @irrj.sigmoid.social.ap.brid.gy for Ian Soboroff, author of the paper “Don’t Use LLMs to Make Relevance Judgments” in the volume. #SIGIR2025 irrj.org/article/view...

@mrparryparry.bsky.social presenting our work on reproducing TREC DL 2019 judgements and the implications for evaluating modern ranking models on modern collections. Paper: arxiv.org/abs/2502.20937

#SIGIR2025 excellent reviewers