Author

Yankai Chen

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#artificial intelligence Preprint Sep 2026

TimeLitmus: A Diagnostic Benchmark for Cross-Modal Understanding and Explanation Faithfulness in Event-Conditioned Time-Series Prediction

Large language models (LLMs) are increasingly used to make predictions from numerical time-series histories and textual events. Yet accuracy alone cannot reveal whether correct answers reflect effective integration of the two inputs or instead arise from event polarity, unimodal priors, or superficial cues. Likewise, p...

Jie Gong, Mao-Wei Jiang, Zhiwei Liu et al. · 0 citations

Preprint Sep 2026

Trade-Adaptive Aggregation of Probabilistic Financial Forecasts

Financial NLP systems produce probabilistic forecasts from news, reports, and filings. Prediction markets can aggregate these forecasts sequentially, but their fees must reward information without overcharging low-risk updates. Existing quadratic-fee mechanisms use a state-blind bound, while a local-curvature envelope...

Yankai Chen, Rassul Magauin, Bowei He et al. · 1 citation

#artificial intelligence Preprint Aug 2026

AutoCRAT: Within-trajectory Joint Control of Stochasticity and Compute for LLM Reasoning

This work instantiates AutoCRAT, a decoder-side controller for frozen backbones that operates over a discrete action space and updates control decisions only at semantic boundaries, improving stability while remaining responsive to the evolving reasoning process.

Han-Jun Luo, Qiu-Shi Liu, Jing-Yang Zhang et al. · 0 citations