The official feed for #RecSys2025: The ACM Conference on Recommender Systems, 22nd–26th September 2025
Prague, Czech Republic
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- Followers 5,307
- Likes 1,698
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NEW: ACM RecSys WhatsApp!
Keep up with everything related to this conference, including #RecSys2025:
1. WhatsApp broadcast channel (your phone number won't be visible): whatsapp.com/channel/0029Vas…
2. Slack: recsys.acm.org/slack-invite/
3. Other options: recsys.acm.org/contact/
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Due to concerns about COVID-19, #RecSys2020 will cancel its physical component and go fully virtual. To support authors through these stressful times, our deadlines will be extended (stay tuned for updates). Let's stick together (virtually) and make the most of this experience!
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We are proud to announce the #RecSys2021 challenge!
The data for this year's challenge is provided by @TwitterResearch.
This year's goal is two-fold: predict different engagement types, while providing fair recommendations. More details on our website:
recsys.acm.org/recsys21/chal…
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I just published “10 RecSys papers everyone should read” medium.com/p/10-recsys-paper…
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This year's RecSys Challenge, organized with Twitter, has come to an end!
Following 386 submissions and 578 participants, we have the following Top-3:
1st place 15k USD: NVIDIA RAPIDS.ai
2nd place 10k USD: Synerise
3rd place 5k USD: LAYER6_AI
Congratulations!
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Nice to see the #WomenInRecSys come together at #RecSys2022. Not everyone joined simultaneously, but we counted at least 50 attendees. Additionally, we look forward to the virtual #WomenInRecSys meetup next week Wednesday.
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Time to binge! 🍿
The recordings of the #RecSys2021 presentations are now online. We compiled a playlist for your convenience: piped.video/playlist?list=PL…
Stay tuned for more updates about #RecSys2022 🔜
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The list of accepted contributions for #RecSys2020 is now online: recsys.acm.org/recsys20/acce…. Register on or before August 21 for an early-bird discount! Looking forward to seeing you in September!
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Thank you!
A big thank you to everyone who attended the conference, who helped to make it happen, and who contributed in any way that has made this year's RecSys an absolutely wonderful #RecSys2022.
We hope that you arrived home safely or will so soon. See you in Singapore!
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Time to bid farewell🥲. An immense thank you to the participants, attendants, and supporters of #RecSys2023. It is your participation that made this conference a resounding success.
We wish everyone safe travels and see you next year in Bari👋🏼🌟
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We have just published all the slides we have from #recsys2017 medium.com/@ACMRecSys/presen…
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You can download all the #RecSys2018 papers under our new open access policy recsys.acm.org/recsys18/acce…
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The #RecSys2020 Challenge is sponsored by @Twitter with a focus on tweet engagement prediction! We look forward to your participation: recsyschallenge.com/2020/
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We are delighted to announce that Cynthia Liem (@informusiccs) is our third keynote speaker!
recsys.acm.org/recsys21/keyn… #RecSys2021
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Looking for a great excuse to visit Rio in 2020? The #RecSys2020 Call for Papers is out now! Time to get your papers ready! recsys.acm.org/recsys20/call…
Important dates:
- Abstract: April 27
- Paper: May 4
- Notification: July 6
- Camera-ready: July 27
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While #recsys2020 is just around the corner, the presentations from #recsys2019 have just been made available on our YouTube channel. Check them out at j.mp/3iG8I3I
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The game is on! welcome to this year's @recsyschallenge hosted by @Spotify @SpotifyEng recsys-challenge.spotify.com #RecSys2018 🤘🎧
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We are delighted to announce Ricardo Baeza-Yates (@PolarBearby) as a keynote speaker at #RecSys2020! recsys.acm.org/recsys20/keyn…
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Are you curious about the papers at #RecSys2021?
We have a released a list of accepted contributions for the main paper track and the doctoral seminar:
recsys.acm.org/recsys21/acce…
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We are delighted to announce our opening keynote speaker:
@wellingmax will deliver a keynote on "Graph Neural Networks for Knowledge Representation and Recommendation"
Find out more about him and his talk here:
recsys.acm.org/recsys21/keyn…
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List of long and short accepted papers of #recsys2019 is now online:
recsys.acm.org/recsys19/acce…
recsys.acm.org/recsys19/acce…
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We are thrilled to announce our 1st keynote speaker: Catherine D’Ignazio @kanarinka
She's an Assistant Professor of Urban Science and Planning at MIT, as well as Director of the Data + Feminism Lab that uses data and computational methods to work towards gender and racial equity
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The videos of talks from #recsys2016 are now available on our YouTube channel. Playlist available at: j.mp/2nOOHy2 #recsys
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We are delighted to announce @nhelberger as a #RecSys2021 keynote speaker! recsys.acm.org/recsys21/keyn…
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Are you ready?
The #RecSys2022 Challenge is set to start on March 7!
We are proud to reveal that this year's challenge is in collaboration with Fashion-AI experts @dressipi: recsyschallenge.com/2022/.
You can find more about Dressipi on their website: dressipi.com.
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#RecSys2020 registration is now open at recsys.acm.org/recsys20/regi…. Looking forward to seeing you (virtually) in September!
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Happy Monday! We gathered all the reviews of #recsys2017 you wrote so far into a single post medium.com/@ACMRecSys/recsys…
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#RecSys2020 paper notifications are out: 39 accepted as long papers (18%) and 26 as short papers (20%). Looking forward to an exciting program!
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We are really excited to announce that #RecSys2019 will be held Copenhagen, Denmark during 16th to 20th September 2018 - stay tuned for more information!
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Awesome response from our community with a record number of long paper submissions to #RecSys2020! Looking forward to a great program in September! Check out our open calls and workshops for further opportunities to contribute: recsys.acm.org/recsys20/call… recsys.acm.org/recsys20/work…
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Our deadlines have been updated! Papers now due June 1 (abstracts due May 25). Check out the new dates for all tracks: recsys.acm.org/recsys20/date…. Stay safe and get your submissions ready! #recsys2020
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A wonderful breakfast gathering for #WomenInRecsys at #RecSys2023 this morning! Fueling up for a day of inspiration and collaboration💪
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This year #recsys2018 received 343 submissions! That is a 38% increase from last year! 👏 thanks to everyone who submitted a paper, see you in Vancouver
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A happy Dr @mxqdr, defended his PhD in room 4 yesterday. You can't get more #recsys than this! #recsys2017
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RecSys crowd: please have a look at our workshops! This year, we have a lot of topics to contribute to. An overview can be found on our website: recsys.acm.org/recsys21/work….
Most deadlines for submission fall between mid-July and August. Let's go through each workshop 👇🏼 - slowly!
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After a successful #summerschool, this weekend #recsys2019 will properly start, with the doctoral symposium on Sunday. Safe travels to all of you and we look forward to welcoming you in Copenhagen!
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Best wishes for the new year! The #recsys21 #recsys call for papers is now online recsys.acm.org/recsys21/call…
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Our Call for Reproducibility Papers is out! #RecSys2021 strongly encourages the submission of algorithmic papers that repeat and analyze prior work.
Let me repeat that:
Our Call for Reproducibility Papers is out!
recsys.acm.org/recsys21/call…
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We promise☀️,🍹, 🏖️ and great research! Looking forward to seeing everyone in #RecSys2020 next year.
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The #RecSys2020 Challenge sponsored by @Twitter is live! Register now at recsyschallenge.com/2020/ to have access to a large-scale, feature-rich dataset for tweet engagement prediction and compete for $30k in prizes! We look forward to your participation! @RecSysChallenge
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#RecSys2020 will feature a new Reproducibility track! Check out our call for papers: recsys.acm.org/recsys20/call…
Important dates:
- Abstract: April 27
- Paper: May 4
- Notification: July 6
- Camera-ready: July 27
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Something to look forward to!
The list of accepted workshops for #RecSys2021 in Amsterdam is available on our website: recsys.acm.org/recsys21/work…. A mix of familiar topics and exiciting new ones. Submission details will be published later on the respective workshop websites.
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In case you missed it: We are happy to announce that the #RecSys2022 Call for Papers is out!
Check it out on our website:
recsys.acm.org/recsys22/call…
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As of tomorrow, the ACM RecSys conference requires everyone to use the same baseline for all offline evaluation studies. It will be based on the preferences and interaction history of Mr. Rufo Di Cesare, an Italian magistrate from Puglia. His user history is now 'The Baseline'.
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List of accepted full papers at #RecSys2023 recsys.acm.org/recsys23/acce…
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It's a date! Well, multiple ones. The important dates for all #RecSys2024 tracks were just published on the webpage. Mark your calendars!
recsys.acm.org/recsys24/date…
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Extend a huge thank you to our outstanding reviewers at #RecSys2023 for their expertise and dedication!
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The list of accepted #RecSys2020 tutorials is out! recsys.acm.org/recsys20/tuto…
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We are going to Prague next year!
Also in 2025, UX design will be our passion. Lien and Alain are staying as publicity chairs. A big thanks to Olivier who has been promoted to Industry co-chair.
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I am happy to announce that I am delighted to share that I am thrilled to reveal that full paper notifications have been sent out for #RecSys2024.
We congratulate those who have been accepted. We also ask you to be a bit more creative than this post when sharing your achievement.
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The Proceedings for #RecSys2021 are out!
We are immensely grateful for the hard work that our proceedings co-chairs have put into this in the last few months. You can find the proceedings through this link: dl.acm.org/doi/proceedings/1….
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Our timezone-agnostic program is now online: recsys.acm.org/recsys20/prog…. We'll be taking registered attendees on board the #RecSys2020 conference platform next week! Looking forward to seeing you (virtually)!
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If you have ever struggled to explain recommender systems to a wider audience, this visual exploration by @BBVAData is a great resource bbvadata.com/recsys/#0
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Hey, we got a minor update. Just a little something.
Ok, here it goes: THE PROCEEDINGS OF THE 18TH ACM CONFERENCE ON RECOMMENDER SYSTEMS ARE OUT:
dl.acm.org/doi/proceedings/1…
Well deserved all caps. #RecSys2024
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We are looking forward your contributions for #RecSys2018 - for more details visit our website recsys.acm.org/recsys18/call…
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Starting now: the last day of #RecSys2022 🥲
We have many beautiful workshops for you to choose from. Check out RecSyshub.org or our website for the program.
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We are proud to have Michael I. Jordan (UC Berkeley) and Mounia Lalmas (Spotify) delivering Keynote talks in the beautiful Petruzzelli Theatre venue at #RecSys2024!
We look forward to welcoming them in Bari! 🌞
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Here are the winners of the general leaderboard of the RecSys Challenge!
The winners decided to donate their prize to the Women in RecSys Community 😍 #RecSys2021
Thank you @walteranelli for being the host tonight of the RecSys Challenge Awards!
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You can't wait for RecSys to finally start? Join our pre-RecSys program with the Women in RecSys keynote series. Everyone is welcome to participate in four amazing talks by Katrien Verbert, Mounia Lalmas, Elizabeth Daly, and Li Chen.
recsys.acm.org/recsys22/wome…
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We excited to announce that the list of tutorials is online! Check out what you can expect at #RecSys2021 this year:
recsys.acm.org/recsys21/tuto…
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We are delighted announce that Elizabeth F. Churchill @xeeliz will be a keynote speaker at #RecSys2018 recsys.acm.org/recsys18/keyn…
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We have made a few changes to the #RecSys2021 main paper track, compared to last year. Read below what they are and why we have made them.
acmrecsys.medium.com/what-an…
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You can't wait for RecSys to start?
Enjoy our pre-RecSys program with the "Women in RecSys" keynote series: recsys.acm.org/recsys21/wome…
We start on Sept 1st, 5 PM CEST, with a talk by @jengolbeck on "Growing Up as a Scholar with Social Media".
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Main conference: sold out
Workshops: sold out
Tutorials: sold out
Sponsor booth space at the conference : sold out
(we're working on opening up more spots for workshops/tutorials. More info on this next week)
#recsys2019
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There is one last #RecSys2022 event, at least for the #WomenInRecSys. We invite you all to a virtual meetup on Wed 28th of, September at 17:00 CEST. The link is the same as for the keynote series. If you don't have it yet, send a quick email to womensevents2022@recsys.acm.org
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Notifications for the #RecSys2022 main paper track and the doctoral symposium have sent. All accepted contributions are now our website:
Papers: recsys.acm.org/recsys22/acce…
Doctoral Symposium: recsys.acm.org/recsys22/acce…
Industry track, sit tight; notifications are coming soon!
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We are buzzing at RecSys HQ, because today is the virtual kick-off of #RecSys2021! We will start at 16:00; attendees should have received an email with details on how to join.
As a warm-up to the conference, we'd like to share final details & a sneak peek: acmrecsys.medium.com/confere…
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Also thrilled to announce @amazon as a Platinum sponsor for #RecSys2020!
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We are thrilled to have Filippo Menczer as a keynote speaker at #RecSys2020! recsys.acm.org/recsys20/keyn…
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thanks @CriteoEng for sharing your take on the top 10 #recsys2017 paper you should not miss labs.criteo.com/2017/10/crit…
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Best short paper award: Pace my race - recommendations for Marathon Running by J Berendsen, A Lawlor, @barrysmyth #recsys2019
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You have to read @alansaid recently published review of the last ten years of #RecSys alansaid.com/conferences/rec…
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🥁
#RecSys2022 registration is open now! Please spread the word and register here: recsys.acm.org/recsys22/regi….
ALT Photo of Seattle. Photo by Robert Ritchie on Unsplash
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