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Reposted by Harrie Oosterhuis

Djoerd Hiemstra 🍉 @djoerd.idf.social.ap.brid.gy · 11/07/2025

Colleague @harrieo.bsky.social made this impressive poster of all Radboud U. contributions to #SIGIR2025

Informagus @ SIGIR 2025
Sunday: Heydar (doctoral consortium)
Monday: Djoerd (short paper), Daria & Arjen (short paper), Santiago & Harrie et al. (short paper), etc., etc.

Harrie Oosterhuis @harrieo.bsky.social · 11/07/2025

If you are attending #SIGIR2025 and #ICTIR2025, come check out our research group's presentations! 😊 We have 14 presentations in total, with at least one every day. 😄 If you want to know more about our group, e.g., the meaning of the Informagus name 😁, do reach out to us. See you in Padua! 😎 ☀️ 🇮🇹

Informagus @ SIGIR & ICTIR 2025

Sunday July 13 – Tutorials and DC Consortium

Enhancing Knowledge Injection in Large Language Models for Efficient and Trustworthy Responses
Heydar Soudani
Doctoral Consortium Paper - 16:30 - Doctoral Consortium

Monday July 14 – Main Conference

Score-Fitted Indexes and Constant Length Indexes for Information Retrieval
Djoerd Hiemstra
Short Paper - 14:00 - Short Papers Posters 1
In a Few Words: Comparing Weak Supervision and LLMs for Short Query Intent Classification
Daria Alexander, Arjen P. de Vries
Short Paper - 14:00 - Short Papers Posters 1
RecGaze: The First Eye Tracking and User Interaction Dataset for Carousel Interfaces
Santiago de Leon-Martinez, Jingwei Kang, Robert Moro, Maarten de Rijke, Branislav Kveton, Harrie Oosterhuis, Maria Bielikova
Resource Paper - 14:00 - Resource Papers Posters 1

Tuesday July 15 – Main Conference

Optimizing Compound Retrieval Systems
Harrie Oosterhuis, Rolf Jagerman, Zhen Qin, Xuanhui Wang
Full Paper - 14:00 - Search and Ranking 1

Wednesday July 16 – Main Conference

Learning to Rank with Variable Result Presentation Lengths
Norman Knyazev, Harrie Oosterhuis
Full Paper - 10:30 - Reranking
Adaptive Orchestration of Modular Generative Information Access Systems
Mohanna Hoveyda, Harrie Oosterhuis, Arjen P. de Vries, Maarten de Rijke, Faegheh Hasibi
Perspectives Paper - 12:15 - Perspectives 1

Thursday July 17 – Workshops

On the Neural Hype and Improving Efficiency of Sparse Retrieval
Djoerd Hiemstra
Keynote - 10:30 - ReNeuIR’25 Workshop
Harnessing Pairwise Ranking Prompting Through Sample-Efficient Ranking Distillation
Junru Wu, Le Yan, Zhen Qin, Honglei Zhuang, Paul Suganthan G.C., Tianqi Liu, Zhe Dong, Xuanhui Wang, Harrie Oosterhuis
Workshop Paper - 14:15 - ReNeuIR’25 Workshop
An Axiomatic Examination of Uncertainty Estimation in RAG Systems
Heydar Soudani, Evangelos Kanoulas, Faegheh Hasibi
Workshop Paper - Time TBA - IR-RAG’25 Workshop
FACE: A Fine-grained Reference Free Evaluator for Co…

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Harrie Oosterhuis @harrieo.bsky.social · 08/07/2025

Rethinking Click Models in Light of Carousel Interfaces: Theory-Based Categorization and Design of Click Models Jingwei Kang, Maarten de Rijke, Santiago de Leon-Martinez, Harrie Oosterhuis arxiv.org/abs/2506.18548 Presentation: Friday 18 July 11:55 - ICTIR’25 Oral Presentations 🧵 6/6

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Harrie Oosterhuis @harrieo.bsky.social · 08/07/2025

Harnessing Pairwise Ranking Prompting Through Sample-Efficient Ranking Distillation Junru Wu, Le Yan, Zhen Qin, Honglei Zhuang, Paul Suganthan G.C., Tianqi Liu, Zhe Dong, Xuanhui Wang, Harrie Oosterhuis arxiv.org/abs/2507.04820 Presentation: Thursday 17 July 14:15 - ReNeuIR25 Paper Session 🧵 5/6

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Harrie Oosterhuis @harrieo.bsky.social · 08/07/2025

Adaptive Orchestration of Modular Generative Information Access Systems Mohanna Hoveyda, Harrie Oosterhuis, Arjen P. de Vries, Maarten de Rijke, Faegheh Hasibi arxiv.org/abs/2504.17454 Code: github.com/informagi/AQA Presentation: Wednesday 16 July 12:15 - Perspectives 1 🧵 4/6

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Harrie Oosterhuis @harrieo.bsky.social · 08/07/2025

Learning to Rank with Variable Result Presentation Lengths Norman Knyazev, Harrie Oosterhuis arxiv.org/abs/2506.23319 Code: github.com/NKNY/varlenr... Presentation: Wednesday 16 July 10:30 - Reranking 🧵 3/6

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Harrie Oosterhuis @harrieo.bsky.social · 08/07/2025

Optimizing Compound Retrieval Systems Harrie Oosterhuis, Rolf Jagerman, Zhen Qin, Xuanhui Wang arxiv.org/abs/2504.12063 Code: github.com/google-deepm... Presentation: Tuesday 15 July 11:15 - Search and Ranking 1 🧵 2/6

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Harrie Oosterhuis @harrieo.bsky.social · 08/07/2025

RecGaze: The First Eye Tracking and User Interaction Dataset for Carousel Interfaces Santiago de Leon-Martinez, Jingwei Kang, Robert Moro, Maarten de Rijke, Branislav Kveton, Harrie Oosterhuis, Maria Bielikova arxiv.org/abs/2504.20792 Monday 14 July 14:00 - Resource Papers Posters 1 🧵 1/6

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Harrie Oosterhuis @harrieo.bsky.social · 08/07/2025

Next week, I'll be in Padua, Italy for #SIGIR25 & #ICTIR25. 🇮🇹🍝🍕🍷🍹☀️ SIGIR is one of my favourite conferences, so I'm very happy to have six co-authored works there, two of which I'll present myself. 😄 I'm looking forward to seeing many of you there! 🙂 Come check out our presentations! 🧵👇😄 0/6

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Reposted by Harrie Oosterhuis

Djoerd Hiemstra 🍉 @djoerd.idf.social.ap.brid.gy · 06/06/2025

#DIR2025, the 22nd Dutch-Belgian Information Retrieval workshop will take place at Radboud University Nijmegen on 27 October 2025! informagus.nl/dir2025

informagus.nl

DIR 2025

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Harrie Oosterhuis @harrieo.bsky.social · 16/05/2025

Very excited for the 4th edition of CONSEQUENCES at the RecSys 2025 conference! 😄 Check our our call for contributions below, and follow @consequencesrecsys.bsky.social for more info.

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Reposted by Harrie Oosterhuis

arxiv cs.IR @arxiv-cs-ir.bsky.social · 30/04/2025

Santiago de Leon-Martinez, Jingwei Kang, Robert Moro, Maarten de Rijke, Branislav Kveton, Harrie Oosterhuis, Maria Bielikova RecGaze: The First Eye Tracking and User Interaction Dataset for Carousel Interfaces arxiv.org/abs/2504.20792

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Reposted by Harrie Oosterhuis

arxiv cs.IR @arxiv-cs-ir.bsky.social · 25/04/2025

Mohanna Hoveyda, Harrie Oosterhuis, Arjen P. de Vries, Maarten de Rijke, Faegheh Hasibi Adaptive Orchestration of Modular Generative Information Access Systems arxiv.org/abs/2504.17454

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Reposted by Harrie Oosterhuis

arxiv cs.IR @arxiv-cs-ir.bsky.social · 17/04/2025

Harrie Oosterhuis, Rolf Jagerman, Zhen Qin, Xuanhui Wang Optimizing Compound Retrieval Systems arxiv.org/abs/2504.12063

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Harrie Oosterhuis @harrieo.bsky.social · 12/03/2025

I'm looking forward to reading this, Bhaskar!

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Harrie Oosterhuis @harrieo.bsky.social · 28/01/2025

Those damn aliens are always so hard to reach! 👽

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Harrie Oosterhuis @harrieo.bsky.social · 14/01/2025

My colleagues published about pairwise relevance labeling this last year (and even earlier on arXiv): aclanthology.org/2024.finding... Why I personally think it works better, mainly because it's hard to calibrate a pointwise relevance prediction, but a pairwise prediction hardly needs calibration.

aclanthology.org

Large Language Models are Effective Text Rankers with Pairwise Ranking Prompting

Zhen Qin, Rolf Jagerman, Kai Hui, Honglei Zhuang, Junru Wu, Le Yan, Jiaming Shen, Tianqi Liu, Jialu Liu, Donald Metzler, Xuanhui Wang, Michael Bendersky. Findings of the Association for Computational ...

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