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Changxi Chi

9 accepted papers

2026

Departures: Distributional Transport for Single-Cell Perturbation Prediction with Neural Schrödinger Bridges

AAAI 2026technical

Predicting single-cell perturbation outcomes directly advances gene function analysis and facilitates drug candidate selection, making it a key driver of both basic and translational biomedical research. However, a major bottleneck in this task is the unpaired nature of single-cell data, as the same

Cited by 0SourcePDFScholar
2026

Doloris: Dual Conditional Diffusion Implicit Bridges with Sparsity Masking Strategy for Unpaired Single-Cell Perturbation Estimation

ICLR 2026poster

Estimating single-cell responses across various perturbations facilitates the identification of key genes and enhances drug screening, significantly boosting experimental efficiency. However, single-cell sequencing is a destructive process, making it impossible to capture the same cell's phenotype b…

Cited by 0SourcecodeScholar
2026

HDTree: Generative Modeling of Cellular Hierarchies for Robust Lineage Inference

ICML 2026poster

In single-cell research, tracing and analyzing high-throughput single-cell differentiation trajectories is crucial for understanding biological processes. Key to this is the robust modeling of hierarchical structures that govern cellular development. Traditional methods face limitations in computati…

Cited by 0SourceScholar
2026

Improving Diffusion Generalization with Weak-to-Strong Segmented Guidance

CVPR 2026

Diffusion models generate synthetic images through an iterative refinement process. However, the misalignment between the simulation-free objective and the iterative process often causes accumulated gradient error along the sampling trajectory, which leads to unsatisfactory results and a failure to

Cited by 0SourcecodeScholar
2026

SYNC: Measuring and Advancing Synthesizability in Structure-Based Drug Design

ICLR 2026poster

Designing 3D ligands that bind to a given protein pocket with high affinity is a fundamental task in Structure-Based Drug Design (SBDD). However, the lack of synthesizability of 3D ligands has been hindering progress toward experimental validation; moreover, computationally evaluating synthesizabili…

Cited by 0SourcecodeScholar
2026

SteinsGate: Adding Causality to Diffusions for Long Video Generation via Path Integral

ICLR 2026poster

Video generation has advanced rapidly, but current models remain limited to short clips, far from the length and complexity of real-world narratives. Long video generation is thus both important and challenging. Existing approaches either attempt to extend the modeling length of video diffusion mode…

Cited by 0SourceScholar
2025

GRAPE: Heterogeneous Graph Representation Learning for Genetic Perturbation with Coding and Non-Coding Biotype

IJCAI 2025

Predicting genetic perturbations enables the identification of potentially crucial genes prior to wet-lab experiments, significantly improving overall experimental efficiency. Since genes are the foundation of cellular life, building gene regulatory networks (GRN) is essential to understand and pred

2025

Multi-modal Topology-embedded Graph Learning for Spatially Resolved Genes Prediction from Pathology Images with Prior Gene Similarity Information

CVPR 2025poster

The rapid development of spatial transcriptomics (ST) allows researchers to measure the spatial-level gene expression in tissues. Although powerful, the cost for collecting the ST data is expensive, and thus several studies aim to predict gene expression in ST by utilizing their corresponding H/E st…

2025

PRESCRIBE: Predicting Single-Cell Responses with Bayesian Estimation

NeurIPS 2025poster

In single-cell perturbation prediction, a central task is to forecast the effects of perturbing a gene unseen in the training data. The efficacy of such predictions depends on two factors: (1) the similarity of the target gene to those covered in the training data, which informs model (epistemic) un…

Cited by 0SourceScholar