@Zhe_Delft Profile picture

Roger Zhe Li

@Zhe_Delft

Senior Product Owner @adidas with a PhD in Computer Science on recommender systems|Fair recommendation|Man Utd|He/Him. Prev: @tudelft @ZJU_China @SenseTime_AI

Joined January 2018
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PhDone or Permanent Head Damage, here we go! Thrilled to announce that I successfully defended my thesis titled "Metric Optimization and Mainstream Bias Mitigation in Recommender Systems" on November 14 at TU Delft. Link to the thesis: doi.org/10.4233/uuid:2…

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Roger Zhe Li Reposted

✨ We are hiring! ✨ We have an open PhD position on Trustworthy Recommender Systems, covering fascinating topics such as Explainability, Fairness, and Robustness in recommendation algorithms. Application Deadline: July 25, 2024 For more information: tudelft.nl/over-tu-delft/…


One day MMC always MMC. We are family.

Aside from attending the interesting talks at #RecSysNL . I am personally happy to meet #MMC @tudelft colelagues/ friends: @Zhe_Delft @Babak_Loni . It is unfortunate that @SoudeFazeli was not able to join. Back to #RecsysNL .



Roger Zhe Li Reposted

I am looking for a PhD candidate to work on machine learning for search systems! 👩‍🎓👨‍🎓 We offer a fully funded position, freedom in your research direction, great working environment and very friendly colleagues. You can apply here: ru.nl/en/working-at/… RT is appreciated! 😄

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Roger Zhe Li Reposted

Interested in #technology that has an impact on #society & #diverse users? We have a #PhD position focused on #RecSys for Youngsters (i.e., children, teenagers, & young adults). Deadline: Sept. 29. RT=❤️ #PhDposition @wisdelft @sigir_students Details: tudelft.nl/over-tu-delft/…


Excited to announce that our paper "Mitigating Mainstream Bias in Recommendation via Cost-sensitive Learning" is accepted to #ICTIR2023. Work done with @julian_urbano and @alanhanjalic


Thanks to this man who made my English name. So honorable that I saw you play in person in Rotterdam 4 years ago and witnessed your last peak form. No sadness for me, but just congrats on such a career, my GOAT.

To my tennis family and beyond, With Love, Roger



This random seed is with me for so many years. It is my duty not to forget. Good night, Beijing. Good night, those people who did not fall asleep.

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So I just donated some money to #Ukraine via @adidas IT'S MY DUTY. I know I cannot do too much, but many hands make light work. Also proud of @adidas and @tudelft I never regret to be part of you.


Roger Zhe Li Reposted

📢 Week 3 Announcement - Lightning Talks 📢 ⚡️We are back with an excellent line-up of lightning talks with topics on Dynamic RecSys, Fairness, and IR for Education, published in top-tier IR venues🔌⚡️ 🌎Reserve your spots here: meetup.com/nl-NL/SEA-Sear… See you all soon 😎

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So I finally switch my identity from a 3-yr attendee to a presenter. An encore of our work on user fairness and mainstream bias mitigation at WSDM'21 will be delivered at @DIR_Workshop See you all online at 5pm CET next Friday (Feb 18). Link to the paper: dl.acm.org/doi/pdf/10.114…


Received an an email like this. Super excited since I think one of the best things a researcher could expect is to see the work having an impact among students, and this time it even crosses the ocean.

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Excited to announce that today I joined adidas as a Senior Product Owner in Amsterdam. My prospective work will be on CV- and multimodal-based representation learning for recommendation. Looking foward to an amazing journey! #impossibleisnothing

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First in-person conference in 2yrs for me, specially as halft-local here. #RecSys2021, here we go!

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