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Junwei Ma

6 accepted papers

2025

CausalPFN: Amortized Causal Effect Estimation via In-Context Learning

NeurIPS 2025spotlight

Causal effect estimation from observational data is fundamental across various applications. However, selecting an appropriate estimator from dozens of specialized methods demands substantial manual effort and domain expertise. We present CausalPFN, a single transformer that *amortizes* this workflo…

Cited by 0SourcecodeScholar
2025

TabDPT: Scaling Tabular Foundation Models on Real Data

NeurIPS 2025poster

Tabular data is one of the most ubiquitous sources of information worldwide, spanning a wide variety of domains. This inherent heterogeneity has slowed the development of Tabular Foundation Models (TFMs) capable of fast generalization to unseen datasets. In-Context Learning (ICL) has recently emerge…

Cited by 0SourcecodeScholar
2024

Retrieval & Fine-Tuning for In-Context Tabular Models

NeurIPS 2024poster

Tabular data is a pervasive modality spanning a wide range of domains, and this inherent diversity poses a considerable challenge for deep learning. Recent advancements using transformer-based in-context learning have shown promise on smaller and less complex tabular datasets, but have struggled to…

Cited by 10SourcePDFScholar
2022

X-Pool: Cross-Modal Language-Video Attention for Text-Video Retrieval

CVPR 2022poster

In text-video retrieval, the objective is to learn a cross-modal similarity function between a text and a video that ranks relevant text-video pairs higher than irrelevant pairs. However, videos inherently express a much wider gamut of information than texts. Instead, texts often capture sub-regions…

Cited by 211PDFcodeScholar
2019

Guided Similarity Separation for Image Retrieval

NeurIPS 2019oral

Despite recent progress in computer vision, image retrieval remains a challenging open problem. Numerous variations such as view angle, lighting and occlusion make it difficult to design models that are both robust and efficient. Many leading methods traverse the nearest neighbor graph to exploit hi…