Yuzhou Chang (@Yuzhou_Chang) header
Yuzhou Chang (@Yuzhou_Chang) profile picture

Joint postdoc at OSUMC and BIDMC. Graph signal processing Spatial omics Graph representation learning

Ohio, USA
Joined March 2017
Photo by Yuzhou Chang (@Yuzhou_Chang)Photo by Yuzhou Chang (@Yuzhou_Chang)Photo by Yuzhou Chang (@Yuzhou_Chang)Photo by Yuzhou Chang (@Yuzhou_Chang)Photo by Yuzhou Chang (@Yuzhou_Chang)Photo by Yuzhou Chang (@Yuzhou_Chang)Photo by Yuzhou Chang (@Yuzhou_Chang)Photo by Yuzhou Chang (@Yuzhou_Chang)Photo by Yuzhou Chang (@Yuzhou_Chang)Photo by Yuzhou Chang (@Yuzhou_Chang)
Now online in @CD_AACR: Same-Slide Spatial Multi-Omics Integration with IN-DEPTH Reveals Tumor Virus-Linked Spatial Reorganization of the Tumor Microenvironment - by Stephanie Pei Tung Yiu, @Yuzhou_Chang, @yeoyaoyu, Huaying Qiu, Wenrui Wu, @SizunJ, and colleagues
Now online: Same-Slide Spatial Multi-Omics Integration with IN-DEPTH Reveals Tumor Virus-Linked Spatial Reorganization of the Tumor Microenvironment doi.org/10.1158/2159-8290.CD…
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Yuzhou Chang retweeted
Chuffed to share KRONOS: A foundation model for Spatial Proteomics! arxiv.org/abs/2506.03373 Exciting work with the indomitable @AI4Pathology, led by the amazing @mshaban_ai, @Yuzhou_Chang, with Huaying, @yeoyaoyu, @GuillaumeJaume, Andrew Song, and our collaborators
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We are so happy to publish our new foundation model in Nature Methods. we trained OmiCLIP, a vision-omics due modalities model to bridge pathology image and transcriptomic, and Loki, a platform using OmiCLIP as backbone for ST and HE image cross analysis. nature.com/articles/s41592-0…
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Multi-agent architectures are the FUTURE Here are 6 different types: 𝟭. 𝗛𝗶𝗲𝗿𝗮𝗿𝗰𝗵𝗶𝗰𝗮𝗹 (𝗩𝗲𝗿𝘁𝗶𝗰𝗮𝗹) 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 A supervisor agent orchestrates multiple specialized agents. 𝘌𝘹𝘢𝘮𝘱𝘭𝘦: • One agent retrieves information from internal data sources • Another agent specializes in public information from web searches • A third agent specializes in retrieving information from personal accounts (email, chat) 𝟮. 𝗛𝘂𝗺𝗮𝗻-𝗶𝗻-𝘁𝗵𝗲-𝗟𝗼𝗼𝗽 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 Incorporates human verification before proceeding to next actions, used when handling sensitive information. 𝟯/𝟱. 𝗡𝗲𝘁𝘄𝗼𝗿𝗸 (𝗛𝗼𝗿𝗶𝘇𝗼𝗻𝘁𝗮𝗹) 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 Agents communicate directly with one another in a many-to-many fashion. Forms a decentralized network without strict hierarchical structure. 𝟰. 𝗦𝗲𝗾𝘂𝗲𝗻𝘁𝗶𝗮𝗹 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 Agents process tasks in sequence, where one agent's output becomes input for the next. 𝘌𝘹𝘢𝘮𝘱𝘭𝘦: Three sequential agents where: • First query agent retrieves information from vector search • Second query agent retrieves additional information from web search based on first agent's findings • Final generation agent creates a response using information from both query agents 𝟱. 𝗗𝗮𝘁𝗮 𝗧𝗿𝗮𝗻𝘀𝗳𝗼𝗿𝗺𝗮𝘁𝗶𝗼𝗻 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 Includes agents dedicated to transforming data. 𝘌𝘹𝘢𝘮𝘱𝘭𝘦: • A transformation agent that enriches data at insert-time or transforms existing collections There are also some other patterns that can be combined with these architectures: • 𝗟𝗼𝗼𝗽 𝗽𝗮𝘁𝘁𝗲𝗿𝗻: Iterative cycles for continuous improvement • 𝗣𝗮𝗿𝗮𝗹𝗹𝗲𝗹 𝗽𝗮𝘁𝘁𝗲𝗿𝗻: Multiple agents working simultaneously on different parts of a task • 𝗥𝗼𝘂𝘁𝗲𝗿 𝗽𝗮𝘁𝘁𝗲𝗿𝗻: A central router determining which agents to invoke • 𝗔𝗴𝗴𝗿𝗲𝗴𝗮𝘁𝗼𝗿/𝘀𝘆𝗻𝘁𝗵𝗲𝘀𝗶𝘇𝗲𝗿 𝗽𝗮𝘁𝘁𝗲𝗿𝗻: Collecting and synthesizing outputs from multiple agents Check out this ebook for more info: weaviate.io/ebooks/agentic-a…
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Yuzhou Chang retweeted
Multi-node NVIDIA HGX B200-accelerated clusters are available NOW, on-demand through Lambda 1-Click Clusters.

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Spatial proteomics is here, but spatial functional proteomics? Here is our Nature BME paper on spatial protein interactomics (nature.com/articles/s41551-0…) illuminating how 47 proteins co-localize/ interact within 20 nm and their function in tissues. @naturemethods @rita_strack
The wait is over!! We are thrilled to announce that we have chosen Spatial Proteomics as 2024’s Method of the Year! 🥳 For more on Spatial Proteomics and a road map to this special issue, please see this month’s Editorial or read on in this thread. nature.com/articles/s41592-0…
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Model Context Protocol (MCP), clearly explained:
Model Context Protocol (MCP), clearly explained:
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RIP Data Scientists. The Generative AI Data Scientist is NOW what companies want. This is actually good news. Let me explain:
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Best Practices for Using AI When Writing Scientific Manuscripts (1/3)
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Need help for investigating tissue complexity from spatial transcriptomic data? Try out our #spacedeconv R package! github.com/omnideconv/spaced…
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Yuzhou Chang retweeted
Graph Machine Learning course Lecture 6 presents Graph-based Visualization 🌟 PCA, Robust PCA, Graph PCA are notable examples of linear dimensionality reduction and LLE, Laplacian Eigenmaps, TSNE, UMAP are outstanding non-linear dim reduction techniques storage.googleapis.com/xavie…
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New from the Bartesaghi lab: MiLoPYP is a two-step, dataset-specific contrastive learning-based method for fast and accurate detection and localization of a diverse range of target structures in cryoET, enabling improved in situ structural biology. nature.com/articles/s41592-0…
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Happy to share our paper from @cellhostmicrobe Longitudinal profiling of the microbiome at four body sites reveals co... sciencedirect.com/science/ar… Special thanks to Xiaotao @xiaotaoshen1990, and Mike @SnyderShot
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Yuzhou Chang retweeted
**Is single-cell data integration a solved problem? ** Lots of great methods, but still not quite yet! Specifically, Check Dataset Imbalance! 🎉 Excited to announce that our study on dataset imbalances in single-cell analysis just hit Nature Biotechnology (@NatureBiotech)! 🎉 Dive into our paper titled "Characterizing the impacts of dataset imbalance on single-cell data integration" here: nature.com/articles/s41587-0… 🔬 We've thoroughly assessed how dataset imbalances can twist the results of single-cell integration and batch-correction, affecting everything from cell-type classification to differential expression. Our work doesn't just highlight the issue; it offers solid solutions! 🧩 Starting with balanced PBMC data, we uncovered how changing cell-type balance disrupts integration results. But, when we cluster similar cell-types hierarchically, the magic happens – stability is dramatically improved! 📊 We didn't stop there. Our research extends to how these imbalances influence crucial downstream analyses. The impact? Statistically significant changes that could sway biological conclusions. 🛠️ To empower researchers, we've developed a suite of guidelines and introduced innovative balanced clustering metrics. Our tools are designed to navigate the tricky waters of dataset imbalance, ensuring accurate, meaningful results. Check out our full tutorial: github.com/hsmaan/Iniquitate… 🧬 And, for a cherry on top, we've redefined benchmarking standards with new metrics that ensure fair and nuanced interpretation of integration results. Future benchmarking, we've got you covered! Explore our balanced clustering package: github.com/hsmaan/balanced-c… 🔧 Our comprehensive toolkit, including code, data, and detailed documentation, is now fully open-source! We're setting new standards for method development and benchmarking in single-cell integration, with an eye on the broader horizon of representation learning. Get all the goodies here: github.com/hsmaan/Iniquitate Huge congratulations to all the authors, especially the first author, Hassaan Maan, a PhD student I co-supervise with @kieranrcampbell, who almost single-handedly led this project! @UHN @MBPatUofT @VectorInst @UofTCompSci @UofT_LMP @pmcc_ai @UHNAIHUB
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Yuzhou Chang retweeted
Many thanks to all the committee members for their guidance, and hearty congratulations to @yuzhou_chang on a successful defense and a smooth Ph.D. graduation journey! 🎓👏 #PhDGraduation @Zihai @GangXin1 @DongjunChung @OhioStatePIIO
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The heat equation in 3D smoothes all the level sets of a function. Generates melting surfaces! en.wikipedia.org/wiki/Heat_e…
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Inverse of Laplacian matrix can be used to define covariance kernels with positive pairwise correlations between nodes. en.wikipedia.org/wiki/Laplac…
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Yuzhou Chang retweeted
Exciting day at #ICIBM! Day 3 with my incredible team. Congrats to @Yuzhou_Chang , BMBL member, for receiving the well-deserved travel award. So proud of your achievements! 🎉👏 #ResearchExcellence #ScienceMatters"
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Yuzhou Chang retweeted
📢 Exciting times at ICIBM 2023 in Tampa, FL! Delighted to lead my amazing team in presenting groundbreaking research and fostering the growth of the younger generation in science! 👩‍🔬👨‍🔬 #ICIBM @WangCankun @anjunma90 @Yuzhou_Chang
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