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Van Dai Do

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#artificial intelligence Preprint Oct 2026

Lotus: Learning to Understand Time-series by Learning to Forecast

Time-series language models typically align numerical signals with language using labels, captions, or question-answer pairs. Although such supervision encourages linguistic representations, it does not explicitly require them to preserve information about how the underlying time-series signal evolves. We introduce for...

Van Dai Do, H. Nguyen, M. Nguyen et al. · 0 citations
#artificial intelligence Preprint Oct 2026

DREAM: Dynamic Resolution Assignment For Multimodal Multi-agent Debate

Multi-agent debate (MAD) has emerged as an effective paradigm to improve the reasoning capabilities of large language models (LLMs) and is increasingly being extended to multimodal settings. However, existing multimodal MAD frameworks typically expose agents to the same fixed visual input, ignoring substantial variatio...

Khanh K. Nguyen, Van Dai Do, Tien-Thuy Nguyen et al. · 0 citations
#machine learning Preprint Sep 2026

Volatility-Clustering Adaptation for Financial Time Series

Time-series foundation models are increasingly adapted to new domains through fine-tuning on target data, under the implicit assumption that more target data yields better forecasts. We show that this assumption can fail in financial forecasting, where individual price changes are difficult to predict, but large moves...

Manh Nguyen, M. Nguyen, H. Nguyen et al. · 0 citations
#artificial intelligence Review Sep 2026

Memory in Deep Time-Series Models

This work develops a unified taxonomy of memory mechanisms and reviews three classes of external memory, including explicit modules, retrieval augmentation, and agentic stores, under a common framework for what is retained, how it is written and accessed, and how it persists.

M. Nguyen, H. Nguyen, Manh Nguyen et al. · 0 citations

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