@TerrierTeam

Researchers behind the Terrier open source search engine

 Glasgow
terrier.org
Joined September 2009
  • Tweets1.5K
  • Following66
  • Followers959
54Media
Delighted that our paper “PLAID-PRF — Pseudo-Relevance Feedback with Centroid-like Tokens in PLAID” has been accepted to #sigir2026, w/ Xiao Wang and @macavaney
3
5
51
4,214
#sigir2026 accepted reproducibility track paper: "A Replicability Study of Joint Product Quantisation for Effective Space-Efficient Dense Retrieval", joint work with @ntonellotto and Zhili Shen
2
20
937
Thank you ❤️
Keith van Rijsbergen Award

ALT Keith van Rijsbergen Award

2
4
18
424
Slide deck waseda.box.com/v/ecir2026kvr…

Did You Know.pdf | Powered by Box

waseda.app.box.com
2
2
8
599
I have just updated Slide #7 as @iadh kindly told me that the definition of F can be found in a paper from 1971.
3
9
457
Replying to @ir_glasgow @macavaney @ntonellotto @joelmmackenzie @torstensuel @mengzaiqiao @JinyuanF @rodrygo_santos @iadh @craig_macdonald
🎄 PyTerrier Advent 24/25: Removing low-quality docs can boost search quality and cut indexing costs. Our SIGIR’24 paper QT5 trains a T5 model to filter passages at indexing time—easy to integrate, and works with dense, PISA, or SPLADE indexers too.
1
3
8
414
Replying to @ir_glasgow @macavaney @ntonellotto @joelmmackenzie @torstensuel @mengzaiqiao @JinyuanF
🎄 PyTerrier Advent 23/25: Results too homogeneous? Try a diversification reranker. Shown: implicit MMR on BM25 or dense retrieval—but explicit methods like xQuAD (@rodrygo_santos) are easy too.
1
5
10
430
Replying to @ir_glasgow @KaustubhDhole @macavaney
🎄PyTerrier Advent 5/25: Comparing pipelines (e.g., BM25 vs RM3)? Use pt.Experiment(baseline=…) to see MAP gains/losses per query and paired t-test p-values. Multiple-test corrections are supported too. 📄pyterrier.readthedocs.io/en/…
1
3
1
283
Happy to announce that our paper "Investors Are (Not) Always Right: A Comparison of Transaction-Based and Profitability-Based Metrics for Financial Asset Recommendations", with @richardm_, Nikos Droukas, @craig_macdonald & @iadh has accepted at ACM TOIS! 🧵(1/5)
Title and authors of the paper.

ALT Title and authors of the paper.

1
5
5
294
🎄PyTerrier Advent 3/25: Now for very recent LLM-based approaches! PyTerrier is extensible through its strong ecosystem of plugins, like PyTerrier_GenRank by @KaustubhDhole at Emory Univ USA, which allows to use generative rerankers such as RankLLama... github.com/emory-irlab/pyter…
1
3
5
278
TerrierTeam retweeted
UofG News@UofGNews2 Dec 2025
PyTerrier, a software platform developed at @GlasgowCS which helps facilitate the development of AI-powered search engines, has won a national award from @bcs! Read more here: gla.ac.uk/news/headline_1228…
Dr Sean MacAvaney receives the Best Search Project of the Year Award at the BCS Search Industry Awards on Wednesday 26 November.

ALT Dr Sean MacAvaney receives the Best Search Project of the Year Award at the BCS Search Industry Awards on Wednesday 26 November.

5
14
576
🎄We want to try something new and fun this year – an “Advent Calendar” of PyTerrier pipelines We’ll kick it off with *the* baseline: BM25 on MSMARCO. One line to download a pre-built index, one line to make a BM25 retriever, one line to search.
1
6
11
765
We are happy to sponsor the Keith Van Rijsbergen (KvR) Award at #ECIR2026 📢 𝗡𝗼𝗺𝗶𝗻𝗮𝘁𝗶𝗼𝗻𝘀 𝗮𝗿𝗲 𝗻𝗼𝘄 𝗼𝗽𝗲𝗻! Details and Submission Form: lnkd.in/emecdsXm 🗓 𝗗𝗲𝗮𝗱𝗹𝗶𝗻𝗲: 𝟭𝟱 𝗝𝗮𝗻𝘂𝗮𝗿𝘆 𝟮𝟬𝟮𝟲 linkedin.com/posts/glasgow-i…

LinkedIn

This link will take you to a page that’s not on LinkedIn

lnkd.in
7
8
761
We’re hiring a 2nd RA/PDRA at @GlasgowCS for the EU CLIMINVEST Project! Work with @iadh, @craig_macdonald & @richardm_ on LLM-powered AI agents for ESG & risk assessment in green investment. Apply by Dec 15: linkedin.com/posts/iadhounis…
6
6
446
PyTerrier 1.0 has been released: - ➡️ search pipeline validation, visualisation and verification - 📘more documentation - ☕️ java now optional 🆕📰github.com/terrier-org/pyter… Try pip install pyterrier[all] w/ @macavaney
12
22
1,427
📢 We are now also on LinkedIn! Follow the Glasgow Information Retrieval Group on LinkedIn for updates on IR research, @ir_glasgow activities, events, and collaborations: 🔗 linkedin.com/company/glasgow… #InformationRetrieval #IR #AI #recsys #RecommenderSystems #Glasgow

Glasgow Information Retrieval Group | LinkedIn

Glasgow Information Retrieval Group | 654 followers on LinkedIn. Founded in 1986, the Glasgow IR Group has been at the forefront of Research & Development in search and recommendation. | The Glasgow...

linkedin.com
5
11
483
RA job in @ir_glasgow on an EU Horizon project, with @iadh @richardm_ and myself, on the use of LLMs in developing AI agents for the risk and ESG (Environmental, Social and Governance) assessment of sustainability-focused green investment projects. 👇
1
12
25
1,202
TerrierTeam retweeted
Iadh Ounis@iadh22 Jul 2025
Journal article “Unifying Isolated Processes for Enhanced Multi-modal Recommendations Using a Graph Transformer” has been accepted at ACM Transactions on Recommender Systems (ToRS); Joint work with @ZixuanYI_  & part of a special issue on best papers from ACM #RecSys 2024
5
20
751
TerrierTeam retweeted
Iadh Ounis@iadh22 Jul 2025
Delighted to see my former PhD student at @ir_glasgow and @GlasgowCS Jingmin Huang, now a lecturer at the University of Southampton; Jingmin served as Demo Co-Chair at #ICDCS2025. Great to catch up at the conference!
7
26
901
The welcome reception at #ICDCS2025 is buzzing with energy! Fantastic to see so many smiling faces and lively conversations — a vibrant start to the conference. Here's to a great main conference ahead! 🎉
7
11
492
Load more