Our paper, “User and Recommender Behavior Over Time” (led by Samira Vaez Barenji) has been accepted to FairUMAP 2025.

I will be giving a tutorial on fairness at ECIR 2025.

Our paper on news reporting of online child safety concerns, led by Drexel students Matt Namvarpour and Elham Aghakhani with Afsaneh Razi and Shadi Rezapour, has been accepted to WebSci 2025.

I am co-organizing the 2025 Product Search and Recommendation track for TREC, which will include a related-product recommendation task focused on identifying substitute and complementary goods.

I will be co-chairing (with Özlem Özgöbek) the RecSys 2025 doctoral symposium. Stay tuned for the call.

I have launched my new research lab, the INERTIA Laboratory, with 2 new Ph.D. students.

I am giving a keynote at ROEGEN@RECSYS'24.

Our paper “It's Not You, It's Me” (with Christine Bauer and Andrés Ferraro) has been accepted to RecSys 2024.

I have joined the editorial board of ACM Transactions on Recommender Systems as an Associate Editor.

I gave the keynote address for the IR4U2 workshop at ECIR 2024.

We have 2 papers accepted to the IR for Good track at ECIR 2024. One led by Amifa Raj on fair grid layouts and another with Sole Pera, Henriette Cramer, and Lex Beattie on consumer-side impacts.

My student Ngozi Ihemelandu's paper on multiple comparison corrections for recommender system evaluation has been accepted as a short paper for ECIR 2024.

Alexandra Olteanu, Carlos Castillo, Jina Suh, and I argue in a new preprint and blog post that RAI research needs impact statements.

I am recruiting for 2 Ph.D positions in Information Science for Fall 2024. See prospective students for more details.

Ngozi Ihemelandu and I have a paper at WI-IAT this month on candidate sampling for recommender evaluation.

Amifa Raj and I have a paper at the FAccTRec workshop on measuring fairness in grid layouts.

Fernando Diaz, Ben Carterette, and I have a new paper in TORS on the need to consider distributions of effects, not just point estimates of effectiveness measures when evaluating recommender systems.

My first Ph.D student, Amifa Raj successfully defended her dissertation today!

We have launched the web site for POPROX, an NSF-funded project to develop infrastructure to support user-facing research on news recommendation.

I am co-organizing a CRAFT panel on “Theories of Change in Responsible AI”. Please fill out this survey to suggest questions.

At the end of the summer, I am moving to the Drexel University Dept. of Information Science.

We will be presenting 2 short papers at SIGIR 2023: “Patterns of Gender-Specializing Query Reformulation” by Ph.D student Amifa Raj with Nick Craswell & Bhaskar Mitra, and “Inference at Scale” by Ngozi Ihemelandu.

On Friday, Jan. 27, I am giving a talk in the UW RAISE seminar series [slides and resources].

I joined the Center for Democracy and Technology along with several other technologists in an amicus brief urging the supreme court to uphold Section 230 protections for recommender systems.

We have a short piece in ACM Interactions on the roles of experts in information access.

Our paper on gender in IR has been accepted and will appear in CHIIR 2023.

I am co-chair of the Fairness, Accountability, Transparency, and Ethics track at TheWebConf 2023. The CFP is now available.

Our paper on consumer fairness objecties and strategies (with Sole Pera) has been accepted to FAccTRec 2022.

Our monograph on fair information access has been published in Foundations and Trends in Information Retrieval.

Our paper “The Multisided Complexity of Fairness in Recommender Systems” has been published in AI Magazine.

Our paper on gender stereotypes in childrens' product search, led by Ph.D student Amifa Raj, has been accepted to SIGIR eCom 2022.

The 3rd Edition of the Recommender Systems Handbook is now available, including our chapter on fairness.

Our paper on fair ranking metrics, led by Ph.D student Amifa Raj, has been accepted to SIGIR 2022.

I am pleased to serve as Program Co-chair for RecSys 2022. Our call for papers is now available.

The Fair Ranking track track is returning to TREC 2022.

Two pieces at the RecSys PERSPECTIVES workshop: my student Ngozi Ihemeandu's paper about statistical inference, and a talk with Ben Carterette and Fernando Diaz about evaluating with distributions.

Our paper “Baby Shark to Barracuda: Analyzing Children’s Music Listening Behavior” has been accepted for publication in RecSys 2021 Late-Breaking Results.

Our paper on gender stereotypes in recommendations and search results for children, led by my student Amifa Raj and in collaboration with Ashlee Milton, has been accepted to KidRec 2021.

The SimuRec and FAccTrec Calls for Papers are now available.

We are running another remote research experience for undergraduates on fair search and recommendation. Applications are due April 25.

I am co-organizing two workshops at RecSys 2021: the fourth FAccTrec and a new workshop on simulations and synthetic data (“SimuRec”).

Our paper Privacy as a Planned Behavior: Effects of Situational Factors on Privacy Perceptions and Plans (led by Boise State student Nuhil Mehdy) has been accepted for publication at UMAP 2021.

New paper Estimation of Fair Ranking Metrics with Incomplete Judgments, led by Omer Kirnap (UCL), has been accepted for publication in TheWebConf 2021.

Our paper Exploring Author Gender in Book Rating and Recommendation has been accepted for publication in User Modeling and User-Adapted Interaction.

Ph.D student Amifa Raj will present our paper ‘Comparing Fair Ranking Metrics’ at FAccTRec.

The LensKit for Python paper will appear in the Resource Track at CIKM 2020.

Our paper Evaluating Stochastic Rankings with Expected Exposure has been accepted to CIKM 2020 (with Fernando Diaz, Bhaskar Mitra, Asia Biega, and Ben Carterette).

Our paper on the LITERATE project has been published in the Aslib Journal of Information Management.

I have an online REU opening for Summer 2020.

The TREC Fair Ranking 2019 report is now available.

The FairUMAP workshop on fairness in user modeling is returning to UMAP 2020.

Mucun Tian's thesis work will appear as a short paper in CHIIR 2020.

The TREC Fairness Track has been accepted for a second year. Details coming spring 2020. If you are at TREC 2019, talk to me!

The Workshop on Fairness, Accountability, Confidentiality, Transparency, and Safety in Information Retrieval was a great success. Look for the report in a few months.

The FAT* Network, which I am organizing with Karen Levy from Cornell, is now open for affiliated events.

Our tutorial proposal on fairness has been accepted to RecSys 2019.

Our tutorial proposal on fairness has been accepted to SIGIR 2019.

The FACTS-IR workshop at SIGIR 2019 will discuss fairness, accountability, confidentiality, transparency, and safety in IR systems (and recsys!).

We have a new preprint on notation for recommender systems teaching, research, and scholarship.

Our proposal for a fairness track at TREC 2019 has been accepted! Details coming Spring 2019.

I am giving seminar talks this fall at CMU HCII (Nov. 9) and Clemson (Dec. 7).

We will present two papers in the REVEAL workshop at RecSys 2018. One describes the LKPY software, and the other (by my student Mucun Tian) presents his work in progress on quantifying evaluation errors. We have a third paper in the ComplexRec workshop on the LITERATE project.

Our paper Exploring Author Gender in Book Rating and Recommendation will be published as a full paper in RecSys 2018. See the blog post.

I am receiving the NSF CAREER award to fund my work on responsible recommendation.

We will be having a second Workshop on Responsible Recommendation, succeeding last year's FATREC, at RecSys 2018 in Vancouver, BC.

I am helping to organize FairUMAP, the first workshop on fairness in user modeling. Papers are due April 18, please submit!

I have had two papers accepted for publication in FAT*, the Conference on Fairness, Acccountability, and Transparency. One is with Sole Pera and the PIReTs on demographic bias in recommender effectiveness, and the other with Hoda Mehrpouyan and her student Rezvan Joshaghani on fair privacy protections.

I am participating in the Dagstuhl Perspectives Workshop Towards Performance Modeling and Performance Prediction across IR/RecSys/NLP.

I am serving as General Co-chair for ACM RecSys 2018 with Sole Pera.

I have a poster at RecSys 2017 and a position paper in KidRec. The PIReTs are also doing several things.

I am giving a number of talks in Belgium and the Netherlands in June. I hope to see some of you there.

The first FATREC Workshop on Responsible Recommendation, which I am organizing with Amit Sharma, will be held at RecSys 2017 in Como, Italy.

I will be presenting one full and one short paper in the recommender systems track at FLAIRS in May, 2017.