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20 results for “Multivariate time series”

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cs.LGcs.AIRecentMay 27, 2026

QuITE: Query-Based Irregular Time Series Embedding

JungHoon Lim

The paper introduces QuITE, a plug-and-play embedding module that uses learnable query tokens to effectively embed irregular multivariate time series data into latent representations compatible with e…

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cs.LGcs.AIRecentMay 27, 2026

Online Irregular Multivariate Time Series Forecasting via Uncertainty-Driven Dual-Expert Calibration

Haonan Wen, Hanyang Chen, Songhe Feng

The paper proposes Under-Cali, an uncertainty-driven dual-expert calibration framework, to achieve stable and efficient online forecasting for irregularly sampled multivariate time series.

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cs.LGcs.AIEmpiricalRecentJun 11, 2026

CRAFTIIF: Cross-Resolution Analytic Four-Type Interpretable Isolation Forest for Multivariate Time Series Anomaly Detection

William Smits

This paper presents a fully unsupervised framework called CRAFTIIF for detecting four types of anomalies in multivariate time series data.

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cs.LGcs.AIRecentJun 1, 2026

VLBM: Variational Latent Basis Modeling for OOD Robust Multivariate Time Series Forecasting

Xudong Zhang, Jierui Lei, Jiacheng Li, Lingdong Shen +2 more

The paper proposes VLBM, a latent basis modeling framework, to achieve state-of-the-art robustness in multivariate time series forecasting, particularly when facing rare but high-impact out-of-distrib…

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cs.LGcs.AIcs.ITRecentJun 1, 2026

Estimating Mutual Information between Time Series and Temporal Event Sequences Across Diverse Analysis Tasks

Haoji Hu, Huaqing Mao, Yijun Lin, Xiaowei Jia +3 more

The paper proposes a novel nonparametric mutual information estimator to robustly quantify dependence between heterogeneous temporal data, specifically continuous time series and discrete event sequen…

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stat.MLcs.LGstat.MERecentJun 1, 2026

Identifiable Markov Switching Models with Instantaneous Effects and Exponential Families

Roel Hulsman, Carles Balsells-Rodas, Sara Magliacane

This paper establishes the identifiability of latent regimes and regime-dependent causal structures in complex non-stationary time series modeled by Markov Switching Models, even with instantaneous ef…

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cs.LGcs.AIRecentJun 1, 2026

Why Do Time Series Models Need Long Context Windows?

Luca Butera, Giovanni De Felice, Andrea Cini, Cesare Alippi

The paper argues that long context windows are necessary for time series forecasting not just to capture long-range dependencies, but primarily to reduce uncertainty about the underlying data-generati…

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cs.LGcs.AIRecentMay 31, 2026

ChronosAD: Leveraging Time Series Foundation Models for Accurate Anomaly Detection

Uzair Khan, Luigi Capogrosso, Francesco Biondani, Michele Magno +3 more

ChronosAD introduces a novel architecture that uses time series foundation models and a custom Temporal Block to achieve robust and highly accurate anomaly detection across diverse domains.

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cs.LGcs.AIecon.GNRecentMay 29, 2026

Kalimati Vegetable Price Index Forecasting with a Momentum Corrected Online Stacking Ensemble

Sahaj Raj Malla

The paper forecasts the Kalimati Vegetable Price Index (KVPI) using a Momentum-Corrected Online Stacking Ensemble, achieving high accuracy (RMSE=1.771, MAPE=0.68%) for long-term price predictions.

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cs.ROcs.AIRecentMay 27, 2026

Identifying Explicit Parsimonious Piece-wise Polynomial Relationships in Industrial time-series: Application to manipulator robots

Mazen Alamir, Sacha Clavel

The paper proposes a novel method to identify parsimonious explicit piece-wise polynomial relationships, demonstrating its effectiveness in modeling the inverse kinematics of industrial manipulator ro…

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cs.CVRecentJun 1, 2026

MORPHOS: Autoregressive 4D Generation with Temporal Structured Latents

Minkyung Kwon, Jinhyeok Choi, Youngjin Shin, Jaeyeong Kim +2 more

MORPHOS is a novel autoregressive framework that generates dynamic 3D assets (like meshes and radiance fields) from videos by using a unified 4D representation to ensure temporal consistency and handl…

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cs.LGcs.AIcs.CLRecentMay 31, 2026

FreqLite: A Lightweight Frequency-Decomposed Linear Model with Adaptive Reversible Normalization for Robust Long-Term Time-Series Forecasting

Mirza Samad Ahmed Baiga, Syeda Anshrah Gillani

FreqLite introduces an ultra-lightweight, frequency-decomposed linear model that significantly outperforms complex transformers on long-term time-series forecasting while drastically reducing computat…

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cs.LGcs.AIstat.MLRecentJun 3, 2026

AdaKoop: Efficient Modeling of Nonlinear Dynamics from Nonstationary Data Streams with Koopman Operator Regression

Naoki Chihara, Ren Fujiwara, Yasuko Matsubara, Yasushi Sakurai

AdaKoop introduces an efficient streaming algorithm that models complex nonlinear dynamics from nonstationary data streams by leveraging the Koopman operator theory, achieving state-of-the-art accurac…

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cs.CLcs.AIRecentMay 31, 2026

TimeSage-MT: A Multi-Turn Benchmark for Evaluating Agentic Time Series Reasoning

Yaxuan Kong, Qingren Yao, Yuqi Nie, Yichen Li +6 more

The paper introduces TimeSage-MT, a comprehensive multi-turn benchmark designed to rigorously test an LLM agent's ability to perform complex, evolving time series analysis, revealing critical gaps in…

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cs.AIRecentMay 27, 2026

GS-FUSE: Granger-Supervised Gated Fusion and Multi-Granularity Alignment for Event-Driven Financial Forecasting

Yang Zhang, En Chun, Ziyun Mao, Yulu Wu +1 more

GS-Fuse is a novel multimodal framework that improves financial forecasting by adaptively fusing event text and price data, achieving state-of-the-art performance by explicitly modeling the directiona…

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cs.LGcs.AIcs.CVRecentMay 28, 2026

Functional MRI Time Series Generation via Wavelet-Based Image Transform and Spectral Flow Matching for Brain Disorder Identification

Hwa Hui Tew, Junn Yong Loo, Fang Yu Leong, Julia K. Lau +5 more

The paper introduces Dual-Spectral Flow Matching (DSFM), a novel generative framework that uses wavelet and cosine transforms to synthesize highly realistic, non-stationary fMRI time series for improv…

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cs.IRcs.AIRecentJun 1, 2026

Time-Aware Diffusion based on Preference Disentanglement for Generative Recommendation

Bangguo Zhu, Peng Huo, Yuanbo Zhao, Zhicheng Du +2 more

The paper proposes TDPM, a time-aware diffusion model for generative recommendation, which significantly improves recommendation accuracy by explicitly modeling the non-stationary, time-evolving natur…

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cs.LGcs.AIRecentMay 29, 2026

ChurnNet: A Optimized Modern AI for Churn Prediction

Syed Saad Saif, Giulio Maggiore, Paolo Russo, Damiano Distante

This paper compares traditional machine learning models (Random Forests, XGBoost, SVM) against a complex Unified Multi-Task Time Series Model for churn prediction, concluding that conventional methods…

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cs.CEq-fin.CPRecentMay 28, 2026

Beyond TVL: An Explainable Risk Scoring Framework for Tokenized Real-World Assets

Rischan Mafrur, Khadijah

The paper introduces an explainable risk scoring framework that evaluates tokenized real-world assets (RWAs) based on liquidity, concentration, and market quality, demonstrating that total value locke…

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cs.CRRecentApr 17, 2026

Modeling Sparse and Bursty Vulnerability Sightings: Forecasting Under Data Constraints

Cedric Bonhomme, Alexandre Dulaunoy

The paper investigates forecasting sparse and bursty vulnerability sightings, concluding that traditional time-series models like SARIMAX are inadequate, and count-based methods like Poisson regressio…

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