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Time Series Analysis

8 items

RESEARCHarXiv CS.LG·20h ago

TriHead-GAN: A Generative Adversarial Network with Triple-Head Discriminator for Carbon Emission Time Series Generation

TriHead-GAN proposes a Transformer-based Generative Adversarial Network with a triple-head discriminator to address the scarcity of city-level carbon emission data. This framework improves time series generation by better preserving cross-variable correlations and realistic step-wise variability compared to existing models.

54
RESEARCHarXiv CS.LG·4/21/2026

CGCMA: Conditionally-Gated Cross-Modal Attention for Event-Conditioned Asynchronous Fusion

This paper studies asynchronous alignment in multimodal learning, where a dense primary stream must be fused with sporadic external context, requiring models to reason explicitly about freshness and trust. It proposes CGCMA (Conditionally-Gated Cross-Modal Attention), a model that separates text-conditioned grounding from lag-aware trust control, tested on cryptocurrency markets.

27
RESEARCHarXiv CS.LG·11d ago

Continuity and Ordinality Matter: Constraining Time Series Tokens for Effective Time Series Analysis with Large Language Models

This paper introduces COM (Continuity and Ordinality Matter), a strategy that integrates geometric constraints into both the initialization and training stages of token-based time series large language models (TS-LLMs). The research demonstrates that preserving continuity and ordinality in time series token embeddings significantly improves model performance and generalizability.

27
RESEARCHarXiv CS.LG·12d ago

Comparative Analysis of Liquid Neural Networks and LSTM for Sequential Pattern Recognition: Robustness, Efficiency, and Clinical Utility

Liquid Neural Networks (LNNs) model hidden state evolution as a continuous differential equation, addressing the limitations of discrete-time RNNs and LSTMs in capturing fluid temporal dynamics. This paper benchmarks LNNs against LSTMs across four sequential modalities, revealing LNNs' superior parameter efficiency and robustness, especially in native temporal domains and clinical environments.

27
RESEARCHarXiv CS.AI·4/22/2026

On Solving the Multiple Variable Gapped Longest Common Subsequence Problem

This paper tackles the Variable Gapped Longest Common Subsequence (VGLCS) problem, a generalization of LCS with flexible gap constraints, relevant to molecular sequence comparison and time-series analysis. It proposes a root-based state graph search framework combined with an iterative beam search strategy to manage combinatorial explosion and find high-quality solutions.

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