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20 results for “Knowledge of time series analysis and machine learning”

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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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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.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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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.AIRecentMay 27, 2026

On the Learnability of Test-Time Adaptation: A Recovery Complexity Perspective

Zhi Zhou, Ming Yang, Shi-Yu Tian, Kun-Yang Yu +2 more

The paper establishes the first theoretical framework for analyzing the learnability of Test-Time Adaptation (TTA) under non-stationary data streams by introducing Recovery Complexity, which quantifie…

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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.CRRecentApr 13, 2026

INTARG: Informed Real-Time Adversarial Attack Generation for Time-Series Regression

Gamze Kirman Tokgoz, Onat Gungor, Tajana Rosing, Baris Aksanli

The paper proposes INTARG, an informed and selective adversarial attack framework for time-series forecasting that significantly increases prediction error by targeting only the most vulnerable time s…

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cs.AIRecentJun 1, 2026

Bridging the Last Mile of Time Series Forecasting with LLM Agents

Yuhua Liao, Zetian Wang, Qiangqiang Nie, Zhenhua Zhang

The paper introduces an LLM-agent framework to solve the 'last-mile forecasting' problem, bridging the gap between raw statistical predictions and business-ready forecasts by incorporating weakly stru…

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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.LGRecentMay 29, 2026

Cognitive Fatigue in Autoregressive Transformers: Formalization and Measurement

Riju Marwah, Ritvik Garimella, Vishal Pallagani, Atishay Jain +2 more

The paper formalizes LLM degradation during long generation as 'cognitive fatigue' and introduces the Fatigue Index (FI), a measurable, model-agnostic diagnostic tool for real-time monitoring.

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cs.AIRecentMay 28, 2026

KairosAgent: Agentic Time Series Forecasting with Fused Semantic Reasoning

Kun Feng, Ziwei Shan, Yuchen Fang, Yiyang Tan +5 more

KairosAgent is a novel agentic framework that combines Large Language Models (LLMs) for semantic reasoning and Time Series Foundation Models (TSFMs) for numerical forecasting, achieving superior multi…

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cs.LGcs.AIRecentMay 31, 2026

What Makes a Strong Model? A Unified Spectral Analysis of Knowledge Transfer over High-dimensional Linear Regression

Wendao Wu, Fangqing Zhang, Haihan Zhang, Cong Fang

This paper develops a unified spectral analysis framework to explain how knowledge transfer (KT) works across different machine learning regimes, such as Knowledge Distillation and Weak-to-Strong gene…

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stat.MLcs.AIcs.LGRecentMay 29, 2026

Correcting Split Selection in Online Decision Trees via Anytime-Valid Inference

Salim I. Amoukou, Saumitra Mishra, Manuela Veloso

The paper introduces a new anytime-valid inference method to correct split selection in online decision trees, providing robust statistical guarantees for streaming data that existing methods lack.

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cs.LGcs.AIRecentMay 28, 2026

DAMEL: Dual-Axis Multi-Expert Learning for Class-Imbalanced Learning

Hyuck Lee, Taemin Park, Heeyoung Kim

The paper proposes DAMEL, a dual-axis multi-expert learning algorithm that simultaneously reduces both prediction bias and variance in class-imbalanced learning by leveraging multiple experts across b…

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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.CRcs.LGRecentApr 24, 2026

Self-Supervised Learning for Android Malware Detection on a Time-Stamped Dataset

Annan Fu, Hao Pei, Maryam Tanha

The paper proposes a time-aware self-supervised learning framework using BYOL to improve Android malware detection robustness by accurately accounting for app release times.

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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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econ.GNcs.CEcs.CVRecentMay 31, 2026

Differing Roles of Leisure and Productivity in GDP - A Machine Learning based comparative analysis of Germany and USA

Achintya Ranjan, Uma Ranjan

This paper uses machine learning to model a country's GDP based on working hours and productivity, demonstrating that the differing relative importance of these two factors between Germany and the USA…

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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.AIRecentMay 29, 2026

From Rashomon Theory to PRAXIS: Efficient Decision Tree Rashomon Sets

Zakk Heile, Hayden McTavish, Varun Babbar, Margo Seltzer +1 more

The paper introduces PRAXIS, a novel algorithm that efficiently approximates the computation of 'Rashomon sets' for decision trees, significantly reducing memory and runtime complexity.

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