
Alejandro Lozano
@Ale9806_
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Ph.D. Student @ Stanford AI Lab Building open biomedical AI
Stanford, California
Joined May 2023
RT @Zhang_Yu_hui: ๐งฌ What if we could build a virtual cell to predict how it responds to drugs or genetic perturbations?. Super excited to iโฆ.
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RT @AkliluJosiah2: Thereโs growing excitement around VLMs and their potential to transform surgery๐ฅโbut where exactly are we on the path toโฆ.
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Shout out to my stellar first co-authors @minwsun and @jmhb0 for leading this effort, as well as the incredible team of computer scientists, statisticians,ย biologists, and clinicians that made this possible: @jnirsch.Christopher Polzak, @Zhang_Yu_hui, @cliangyu_, Jeffrey Gu,.
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Introducing video differencing, a new task for detecting differences between video frames. Notably, even the most advanced Video LLMs struggle with this challenge, underscoring the long road ahead!.
๐จLarge video-language models LLaVA-Video can do single-video tasks. But can they compare videos?. Imagine youโre learning a sports skill like kicking: can an AI tell how your kick differs from an expert video?. ๐ Introducing "Video Action Differencing" (VidDiff), ICLR 2025.๐งต
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Check out our new work accepted to ICLR 2025. We introduce time-to-event (TTE) pretraining to leverage temporal supervision from longitudinal EHR data and estimate the risk of future events. By scaling to 225M clinical events, we achieve SOTA prognostic performance!.
๐ Excited to share that our latest research, ๐๐ช๐ฎ๐ฆ-๐ต๐ฐ-๐๐ท๐ฆ๐ฏ๐ต ๐๐ณ๐ฆ๐ต๐ณ๐ข๐ช๐ฏ๐ช๐ฏ๐จ ๐ง๐ฐ๐ณ 3๐ ๐๐ฆ๐ฅ๐ช๐ค๐ข๐ญ ๐๐ฎ๐ข๐จ๐ช๐ฏ๐จ, has been accepted at ๐๐๐๐ฅ 2025! ๐. ๐ ๐๐บ๐ฝ๐ฟ๐ผ๐๐ถ๐ป๐ด ๐ ๐ฒ๐ฑ๐ถ๐ฐ๐ฎ๐น ๐๐บ๐ฎ๐ด๐ฒ ๐ฃ๐ฟ๐ฒ๐๐ฟ๐ฎ๐ถ๐ป๐ถ๐ป๐ด ๐๐ถ๐๐ต ๐ง๐ถ๐บ๐ฒ-๐๐ผ-๐๐๐ฒ๐ป๐.
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RT @XiaohanWang96: ๐ Introducing Temporal Preference Optimization (TPO) โ a video-centric post-training framework that enhances temporal grโฆ.
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[10/10. @cliangyu_,@jnirsch, Jeffrey Gu, Ivan Lopez,.@AkliluJosiah2, Austin Katzer, Collin Chiu, Anita Rau,.@XiaohanWang96,@Zhang_Yu_hui, Alfred Song,.@robtibshirani,@yeung_levy.
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RT @Zhang_Yu_hui: ๐ Vision language models are getting better - but how do we evaluate them reliably? Introducing AutoConverter: transformiโฆ.
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