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Irregular multivariate time series (IMTS) are prevalent in real-world applications across many fields, where varying sensor frequencies and asynchronous measurements pose significant modeling challenges. Existing solutions often rely on a…

机器学习 · 计算机科学 2025-05-08 Yulong Wang , Xiaofeng Hu , Xiaojian Cui , Kai Wang

Conventional time series classification approaches based on bags of patterns or shapelets face significant challenges in dealing with a vast amount of feature candidates from high-dimensional multivariate data. In contrast, deep neural…

机器学习 · 计算机科学 2023-06-07 Raneen Younis , Abdul Hakmeh , Zahra Ahmadi

With the worldwide growth of remote communication and telepresence, network measurements form a cornerstone of effective performance assessment and diagnostics for Internet users. Most often, users seek for overall connection performance…

网络与互联网体系结构 · 计算机科学 2025-06-02 Roman Beltiukov , Karthik Bhattaram , Evania Cheng , Vinod Kanigicherla , Akul Singh , Ken Thampiratwong , Arpit Gupta

The present study explores the interpretability of latent spaces produced by time series foundation models, focusing on their potential for visual analysis tasks. Specifically, we evaluate the MOMENT family of models, a set of…

In this paper, we investigate the distillation of time series reasoning capabilities into small, instruction-tuned language models as a step toward building interpretable time series foundation models. Leveraging a synthetic dataset of…

计算与语言 · 计算机科学 2025-07-11 Matthieu Boileau , Philippe Helluy , Jeremy Pawlus , Svitlana Vyetrenko

Time-series data is critical across many scientific and industrial domains, including environmental analysis, agriculture, transportation, and finance. However, mining insights from this data typically requires deep domain expertise, a…

In this report, we present TAGLAS, an atlas of text-attributed graph (TAG) datasets and benchmarks. TAGs are graphs with node and edge features represented in text, which have recently gained wide applicability in training graph-language or…

机器学习 · 计算机科学 2024-10-22 Jiarui Feng , Hao Liu , Lecheng Kong , Mingfang Zhu , Yixin Chen , Muhan Zhang

Large Language Models (LLMs) have emerged as a promising paradigm for time series analytics, leveraging their massive parameters and the shared sequential nature of textual and time series data. However, a cross-modality gap exists between…

机器学习 · 计算机科学 2025-07-16 Chenxi Liu , Hao Miao , Cheng Long , Yan Zhao , Ziyue Li , Panos Kalnis

Multivariate time series forecasting is widely used in various fields. Reasonable prediction results can assist people in planning and decision-making, generate benefits and avoid risks. Normally, there are two characteristics of time…

机器学习 · 计算机科学 2021-03-23 Yifu Zhou , Ziheng Duan , Haoyan Xu , Jie Feng , Anni Ren , Yueyang Wang , Xiaoqian Wang

The massive amount of data available in operational mobile networks offers an invaluable opportunity for operators to detect and analyze possible anomalies and predict network performance. In particular, application of advanced machine…

网络与互联网体系结构 · 计算机科学 2020-12-01 Jessica Moysen , Furqan Ahmed , Mario García-Lozano , Jarno Niemelä

Monitoring urban structure and development requires high-quality data at high spatiotemporal resolution. While traditional censuses have provided foundational insights into demographic and socioeconomic aspects of urban life, their pace may…

物理与社会 · 物理学 2024-03-20 Gezhi Xiu , Jianying Wang , Thilo Gross , Mei-Po Kwan , Xia Peng , Yu Liu

Time series forecasting is crucial in strategic planning and decision-making across various industries. Traditional forecasting models mainly concentrate on numerical time series data, often overlooking important textual information such as…

计算与语言 · 计算机科学 2025-08-07 Chanjuan Liu , Shengzhi Wang , Enqiang Zhu

Urban forecasting models often face a severe data imbalance problem: only a few cities have dense, long-span records, while many others expose short or incomplete histories. Direct transfer from data-rich to data-scarce cities is unreliable…

机器学习 · 计算机科学 2025-09-23 Yue Jiang , Chenxi Liu , Yile Chen , Qin Chao , Shuai Liu , Cheng Long , Gao Cong

Time series analysis and prediction methods currently excel in quantitative analysis, offering accurate future predictions and diverse statistical indicators, but generally falling short in elucidating the underlying evolution patterns of…

机器学习 · 计算机科学 2024-09-09 Yi Xie , Tianyu Qiu , Yun Xiong , Xiuqi Huang , Xiaofeng Gao , Chao Chen

The ability to track large-scale events as they happen is essential for understanding them and coordinating reactions in an appropriate and timely manner. This is true, for example, in emergency management and decision-making support, where…

计算机与社会 · 计算机科学 2022-06-28 Carlo Bono , Barbara Pernici

Recent breakthroughs in large-scale generative modeling have demonstrated the potential of foundation models in domains such as natural language, computer vision, and protein structure prediction. However, their application in the energy…

机器学习 · 计算机科学 2025-01-29 Michael Fuest , Alfredo Cuesta , Kalyan Veeramachaneni

The rapid development of large-scale text-to-speech (TTS) models has led to significant advancements in modeling diverse speaker prosody and voices. However, these models often face issues such as slow inference speeds, reliance on complex…

音频与语音处理 · 电气工程与系统科学 2024-09-17 Yinghao Aaron Li , Xilin Jiang , Cong Han , Nima Mesgarani

Organizations leverage anomaly and changepoint detection algorithms to detect changes in user behavior or service availability and performance. Many off-the-shelf detection algorithms, though effective, cannot readily be used in large…

机器学习 · 计算机科学 2022-05-25 Sourav Chatterjee , Rohan Bopardikar , Marius Guerard , Uttam Thakore , Xiaodong Jiang

Recently, there has been a growing interest in the field of controllable Text-to-Speech (TTS). While previous studies have relied on users providing specific style factor values based on acoustic knowledge or selecting reference speeches…

音频与语音处理 · 电气工程与系统科学 2024-04-26 Shengpeng Ji , Jialong Zuo , Minghui Fang , Ziyue Jiang , Feiyang Chen , Xinyu Duan , Baoxing Huai , Zhou Zhao

Accurate long-horizon house-price forecasting requires benchmarks that capture temporal dynamics together with time-varying local context. However, existing public resources remain fragmented: many datasets have limited spatial coverage,…

人工智能 · 计算机科学 2026-02-10 Shengkun Wang , Yanshen Sun , Fanglan Chen , Linhan Wang , Naren Ramakrishnan , Chang-Tien Lu , Yinlin Chen