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Loka Li

7 accepted papers

2026

Characterization and Learning of Causal Graphs with Latent Confounders and Post-treatment Selection from Interventional Data

ICLR 2026poster

Interventional causal discovery seeks to identify causal relations by leveraging distributional changes introduced by interventions, even in the presence of latent confounders. Beyond the spurious dependencies induced by latent confounders, we highlight a common yet often overlooked challenge in the…

Cited by 0SourcecodeScholar
2026

PersonaX: Multimodal Datasets with LLM-Inferred Behavior Traits

ICLR 2026poster

Understanding human behavior traits is central to applications in human-computer interaction, computational social science, and personalized AI systems. Such understanding often requires integrating multiple modalities to capture nuanced patterns and relationships. However, existing resources rarely…

Cited by 0SourcecodeScholar
2025

Causal Representation Learning from Multimodal Biomedical Observations

ICLR 2025poster

Prevalent in biomedical applications (e.g., human phenotype research), multimodal datasets can provide valuable insights into the underlying physiological mechanisms. However, current machine learning (ML) models designed to analyze these datasets often lack interpretability and identifiability guar…

Cited by 0SourcePDFScholar
2025

Gene Regulatory Network Inference in the Presence of Selection Bias and Latent Confounders

NeurIPS 2025poster

Gene regulatory network inference (GRNI) aims to discover how genes causally regulate each other from gene expression data. It is well-known that statistical dependencies in observed data do not necessarily imply causation, as spurious dependencies may arise from *latent confounders*, such as non-co…

Cited by 0SourceScholar
2025

Reflection-Window Decoding: Text Generation with Selective Refinement

ICML 2025poster

The autoregressive decoding for text generation in large language models (LLMs), while widely used, is inherently suboptimal due to the lack of a built-in mechanism to perform refinement and/or correction of the generated content. In this paper, we consider optimality in terms of the joint probabili…

Cited by 2SourcePDFScholar
2024

Federated Causal Discovery from Heterogeneous Data

ICLR 2024poster

Conventional causal discovery methods rely on centralized data, which is inconsistent with the decentralized nature of data in many real-world situations. This discrepancy has motivated the development of federated causal discovery (FCD) approaches. However, existing FCD methods may be limited by th…

2024

On Causal Discovery in the Presence of Deterministic Relations

NeurIPS 2024poster

Many causal discovery methods typically rely on the assumption of independent noise, yet real-life situations often involve deterministic relationships. In these cases, observed variables are represented as deterministic functions of their parental variables without noise. When determinism is presen…

Cited by 1SourcePDFScholar