Ismini Lourentzou
@Ismini_L
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Assistant Prof. @iSchoolUI Multimodal ML, Computer Vision, NLP Research. Previously @VT_CS @SanghaniCtrVT @IBMResearch. PhD @illinoisCDS. Opinions are my own.
Joined September 2013
Thank you to the @Google Tunix team for the collaboration and the @googlecloud TPU support behind this work! https://t.co/6vY8NuRuxa fDPO from our #NeurIPS2025 SpatialReasoner-R1 paper is open-sourced in Tunix ๐ #JAX #OpenSource
opensource.googleblog.com
Researchers from UIUC and Google introduce SpatialReasoner, a VLM with enhanced spatial reasoning. They used Tunix on TPUs to develop fDPO.
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Excited to share our #AAAI2026 Oral paper Hierarchical Dataset Selection for High-Quality Data Sharing! ๐ค How do you decide which datasets to train on when data comes from many noisy, heterogeneous sources? ๐งต
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Thank you to everyone who stopped by our @NeurIPSConf poster on SpatialReasoner! Lots of exciting things cooking in PLAN Lab - stay tuned!๐And if you missed our poster, hereโs our paperโฆ as a groovy song ๐ถ https://t.co/7EEeer2WMt ๐ง๐ธ
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NeurIPS 2025's top 50 paper contributors show China and the US neck-and-neck. In the US, corporate labsโGoogle DeepMind, Meta, Microsoftโnow rival top schools like Stanford, CMU, MIT, showing a major shift to industry-led AI research. Chinaโs leaders remain academic: Tsinghua,
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Happening now! @NeurIPSConf Come learn about spatial reasoning VLMs
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Heading to @NeurIPS2025 ๐ฉ๐ฝโ๐ป looking forward to catching up with friends and colleagues. @SivanShen will be presenting our spatial reasoning work ๐ Exhibit Hall C/D/E โ Poster #4812 ๐๏ธ Wed, Dec 3 | 11amโ2pm PST ๐ https://t.co/4YK9jJi6iM If youโre interested in VLMs, reasoning,
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๐ https://t.co/82zprHAqs6 โฐ Submissions Due Dec 16, 2025 ๐๏ธ Join us in March 2026 @ WACV'26 in Tucson, AZ!
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๐ LLVM-AD @ WACV 2026 CFP is live! ๐ Working on autonomous driving? The LLVM-AD workshop invites papers on LLMs/VLMs for autonomous driving, including multimodal planning, scene understanding, language-driven simulation, datasets, and humanโautonomy teaming. ๐๐๐ผ๐๐พ
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Excited to finally share our #NeurIPS2025 paper "๐ฎPurpCode: Reasoning for Safer Code Generation"!ย ๐ ๐ First post-training recipe for training safe code reasoning models ๐ SOTA for cybersafety + utility, outperforming Sonnet 4, o4-mini, R1 ๐ฅ Winner of 2025 Amazon Nova AI
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Very proud of my student @SivanShen for his first-author #NeurIPS2025 SpatialReasoner-R1 paper ๐ An amazing start to his #siebelschool PhD! ๐Huge thank you to our co-authors Yuanzhe Liu, Jingyuan Zhu, @IrohXu, Xiaofeng Zhang, Yixiao He, @wenmingye, @RehgJim
๐Can we tackle spatial queries just from 2D images? Yes, thanks to LongCoT reasoning!๐บ๏ธIntroducing ๐๐ฉ๐๐ญ๐ข๐๐ฅ๐๐๐๐ฌ๐จ๐ง๐๐ซ-๐๐, a vision-language reasoning model that sets new SoTA on SpatialRGPT-Bench. ๐ https://t.co/0sWj0gg1MO ๐ https://t.co/NFeMLiU1qm
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2 days left (September 19, 2025 AoE) to submit Resources (Data/Software); JCDL 2025 invites submissions to a dedicated Resources Track, focused on public datasets, software & benchmarks. CFP: https://t.co/ZWY8iLps8N
#JCDL2025 #digitallibraries
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Call for Resources (Data/Software); an interesting and exciting CFP and venue especially for people working in the AI4Science. Do check it out !!
2 days left (September 19, 2025 AoE) to submit Resources (Data/Software); JCDL 2025 invites submissions to a dedicated Resources Track, focused on public datasets, software & benchmarks. CFP: https://t.co/ZWY8iLps8N
#JCDL2025 #digitallibraries
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Congratulations to #iSchoolUI Assistant Professor @Ismini_L and everyone on the PurpCorn-PLAN team on this major accomplishment! ๐
#ILLINOIS PurpCorn-PLAN has won the @amazon Nova AI Challenge, claiming an impressive $250,000 prize! ๐ถ๐๐ท This team of 11 PhD & MS students from @uofigrainger Siebel School & @iSchoolUI is led by profs Gang Wang, Lingming Zhang & Ismini Lourentzou.
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#ILLINOIS PurpCorn-PLAN has won the @amazon Nova AI Challenge, claiming an impressive $250,000 prize! ๐ถ๐๐ท This team of 11 PhD & MS students from @uofigrainger Siebel School & @iSchoolUI is led by profs Gang Wang, Lingming Zhang & Ismini Lourentzou.
amazon.science
University teams battle to harden and hack AI coding assistants in head-to-head tournamentย
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๐ ๏ธ What's new? โ๏ธFine-grained Direct Preference Optimization (fDPO) for spatial reasoning โ
Multi-Model MCTS for generating high-quality LongCoT spatial reasoning data ๐In collaboration with students and colleagues from UPenn, Shanghai Jiao Tong University, UIUC, and Google.
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๐Can we tackle spatial queries just from 2D images? Yes, thanks to LongCoT reasoning!๐บ๏ธIntroducing ๐๐ฉ๐๐ญ๐ข๐๐ฅ๐๐๐๐ฌ๐จ๐ง๐๐ซ-๐๐, a vision-language reasoning model that sets new SoTA on SpatialRGPT-Bench. ๐ https://t.co/0sWj0gg1MO ๐ https://t.co/NFeMLiU1qm
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