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Lu Cheng

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#artificial intelligence Preprint Oct 2026

Repairing LLM-Generated Specifications with Deterministic Diagnosis

Large language models (LLMs) are increasingly used as formalizers: given a reasoning problem expressed in natural language, they produce a formal specification that a symbolic solver can then solve, with guarantees relative to that specification. Many specifications are runnable yet semantically wrong, encoding incorre...

G. Vaccarino, Emanuele La Malfa, De-Hai Min et al. · 0 citations

MOSAIC: Module Discovery via Sparse Additive Identifiable Causal Learning for Scientific Time Series

MOSAIC (Module discovery via Sparse Additive Identifiable Causal learning), a sparse temporal VAE that integrates temporal CRL identifiability with support recovery over observed variables, enabling interpretable discovery of latent mechanisms in scientific time series.

Shichen Fan, Nour Elhendawy, Jianle Sun et al. · 1 citation
#artificial intelligence Preprint Sep 2026

ATLAS: Aligned Transport of Latent Structure for Reliable World Model Planning

This work introduces Aligned Transport of Latent Structure (ATLAS), a training objective that explicitly preserves relational geometry while calibrating the global latent distribution and uses Wasserstein embedding matching to calibrate its marginal through one-dimensional Wasserstein-2 transport.

Ke Fang, Yu-Pu Yao, Lu Cheng · 0 citations
Preprint Sep 2026

Escaping Reasoning Basin Collapse with History-Biased Search

The results identify reasoning basin collapse as a failure mode of inference-time search and show that history-dependent bias provides a simple, training-free mechanism for escaping redundant reasoning under fixed compute.

Lu Cheng · 0 citations
#natural language process... Preprint May 2026

Beyond Math and Code: Lightweight Corpus-Grounded Process Rewards for Factual Question Answering

CorVer (Corpus Verify) is a lightweight training-time approach to process supervision that derives sentence-level rewards from corpus co-occurrence statistics and outperforms the unmodified models in all standard factual-QA settings.

Shi-Chen Fan, Hao-Chang Hao, De-Hai Min et al. · 5 citations
Jul 2026

TSRouter: Dynamic Modality-Model Selection for Time Series Reasoning

TSRouter, a graph-based dynamic routing framework that demonstrates robust zero-shot plug-and-play generalization to unseen models and novel tasks and preserves high performance while reducing computational overhead through cost-aware optimization.

Fangxu Yu, Tao Feng, De-Hai Min et al. · 3 citations
#artificial intelligence Preprint Jan 2026

EpiQAL: Benchmarking Large Language Models in Epidemiological Question Answering and Reasoning

EpiQAL provides fine-grained diagnostic signals for evidence-grounding, inferential reasoning, and conclusion reconstruction for epidemiological question answering over research literature, comprising three subsets built from open-access articles across diverse diseases.

Mingyang Wei, De-Hai Min, Zewen Liu et al. · 0 citations

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