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20232026
most citedRevisiting VAE for Unsupervised Time Series Anomaly Detection: A Frequency Perspective

4 citations · 17 across the 21 of their papers we have counts for

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Showing 2025Show all

9 papers · 1 filter

cs.CL2025

TimeSense:Making Large Language Models Proficient in Time-Series Analysis

Zhirui Zhang, Changhua Pei, Tianyi Gao +7

In the time-series domain, an increasing number of works combine text with temporal data to leverage the reasoning capabilities of large language models (LLMs) for various downstre…

cs.LG2025

ViTs: Teaching Machines to See Time Series Anomalies Like Human Experts

Zexin Wang, Changhua Pei, Yang Liu +8

Web service administrators must ensure the stability of multiple systems by promptly detecting anomalies in Key Performance Indicators (KPIs). Achieving the goal of "train once, in…

cs.SE2025

TShape: Rescuing Machine Learning Models from Complex Shapelet Anomalies

Hang Cui, Jingjing Li, Haotian Si +4

Time series anomaly detection (TSAD) is critical for maintaining the reliability of modern IT infrastructures, where complex anomalies frequently arise in highly dynamic environmen…

cs.AI2025

A Survey on AgentOps: Categorization, Challenges, and Future Directions

Zexin Wang, Jingjing Li, Quan Zhou +7

As the reasoning capabilities of Large Language Models (LLMs) continue to advance, LLM-based agent systems offer advantages in flexibility and interpretability over traditional sys…

cs.CL2025

Mitigating Geospatial Knowledge Hallucination in Large Language Models: Benchmarking and Dynamic Factuality Aligning

Shengyuan Wang, Jie Feng, Tianhui Liu +2

Large language models (LLMs) possess extensive world knowledge, including geospatial knowledge, which has been successfully applied to various geospatial tasks such as mobility pre…

cs.LG2025

From Time Series Analysis to Question Answering: A Survey in the LLM Era

Wei Li, Zhe Xie, Yuxuan Liang +4

Recently, Large Language Models (LLMs) have introduced a novel paradigm in Time Series Analysis (TSA), leveraging strong language capabilities to support tasks such as forecasting…

cs.LG2025

CMoS: Rethinking Time Series Prediction Through the Lens of Chunk-wise Spatial Correlations

Haotian Si, Changhua Pei, Jianhui Li +2

Recent advances in lightweight time series forecasting models suggest the inherent simplicity of time series forecasting tasks. In this paper, we present CMoS, a super-lightweight…

cs.SE2025★ 1 cited

Flow-of-Action: SOP Enhanced LLM-Based Multi-Agent System for Root Cause Analysis

Changhua Pei, Zexin Wang, Fengrui Liu +9

In the realm of microservices architecture, the occurrence of frequent incidents necessitates the employment of Root Cause Analysis (RCA) for swift issue resolution. It is common t…

cs.LG2025

Achieving Time Series Reasoning Requires Rethinking Model Design, Tasks Formulation, and Evaluation

Yaxuan Kong, Yiyuan Yang, Shiyu Wang +7

Understanding time series data is fundamental to many real-world applications. Recent work explores multimodal large language models (MLLMs) to enhance time series understanding wi…