Litian Liu Profile
Litian Liu

@litianliuphd

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Researcher @QCOMResearch; PHD @MITEECS

San Diego, CA
Joined June 2023
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@litianliuphd
Litian Liu
3 months
Our #CVPR2025 paper is out!.Inspired by Neural Collapse, we show that OOD samples lie far from the origin and class weights—tying together many prior methods. Huge thanks to @YaoQin_UCSB, @liuziwei7, and @JingkangY for the collaboration & OpenOOD support! .
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@litianliuphd
Litian Liu
15 days
Great to be part of the Alumni in Industry Committee session at #ISIT2025—shared my journey into industry and learned a lot from others on similar paths.
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@litianliuphd
Litian Liu
26 days
Had a great time at #CVPR2025!.Grateful for the chance to present my poster and connect with so many amazing researchers!
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@litianliuphd
Litian Liu
1 month
Excited to be at #CVPR2025! Come visit our booth 👇.Also thrilled to share two papers—please stop by our posters!.📄 Detecting OOD through the Lens of Neural Collapse: 📄 Distilling Multi-modal LLMs for Autonomous Driving:
@QCOMResearch
Qualcomm Research & Technologies
1 month
From real-time image editing to efficient vision models and autonomous driving — @Qualcomm AI Research is pushing the boundaries of what's possible in computer vision and AI. Dive into our latest innovations unveiled at #CVPR2025 and see how we're shaping the future of on-device.
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@litianliuphd
Litian Liu
5 months
Excited to present our latest work on hallucination detection at the ITA workshop ( this Thursday! Looking forward to discussing the effect of noise injection in quantifying model uncertainty!.
@apratimbh
Apratim Bhattacharyya
5 months
🚨 We present in "Enhancing Hallucination Detection through Noise Injection" [, an efficient approach to detect hallucinations in LLMs, within a Bayesian framework. TL; DR - We use noise injection to capture both epistemic and aleatoric uncertainty!
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@litianliuphd
Litian Liu
1 year
This work is in collaboration with @YaoQin_UCSB. And thanks to @liuziwei7, @JingkangY, and Jingyang Zhang, our method is also available on:.- OpenOOD codebase: - Live OpenOOD leaderboard:
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@litianliuphd
Litian Liu
1 year
Distance to decision boundaries reflects model confidence. As models are more confident with ID, we hypothesize and validate that ID samples reside further from decision boundaries than OOD. Leveraging this, our detector achieves SOTA effectiveness with negligible latency.
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@litianliuphd
Litian Liu
1 year
In this work, we explore OOD detection from a novel perspective—decision boundaries. We efficiently measure sample distance to decision boundaries (illustrated below) using our proposed closed-form estimation.
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@litianliuphd
Litian Liu
1 year
Excited to share our #ICML2024 paper! Detect Out-of-Distribution (OOD) samples efficiently and effectively with our detector: OOD samples are closer to decision boundaries, In-Distribution (ID) samples are further away!.
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