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Question Answering (QA) is a task in natural language processing that has seen considerable growth after the advent of transformers. There has been a surge in QA datasets that have been proposed to challenge natural language processing…

计算与语言 · 计算机科学 2021-10-08 Kate Pearce , Tiffany Zhan , Aneesh Komanduri , Justin Zhan

Time series data are integral to critical applications across domains such as finance, healthcare, transportation, and environmental science. While recent work has begun to explore multi-task time series question answering (QA), current…

We present Timer-XL, a causal Transformer for unified time series forecasting. To uniformly predict multidimensional time series, we generalize next token prediction, predominantly adopted for 1D token sequences, to multivariate next token…

机器学习 · 计算机科学 2025-03-04 Yong Liu , Guo Qin , Xiangdong Huang , Jianmin Wang , Mingsheng Long

In the evolving field of Natural Language Processing (NLP), understanding the temporal context of text is increasingly critical for applications requiring advanced temporal reasoning. Traditional pre-trained language models like BERT, which…

计算与语言 · 计算机科学 2025-03-06 Jiexin Wang , Adam Jatowt , Yi Cai

Time series data in real-world applications such as healthcare, climate modeling, and finance are often irregular, multimodal, and messy, with varying sampling rates, asynchronous modalities, and pervasive missingness. However, existing…

机器学习 · 计算机科学 2025-10-16 Ching Chang , Jeehyun Hwang , Yidan Shi , Haixin Wang , Wen-Chih Peng , Tien-Fu Chen , Wei Wang

Natural language is the most intuitive medium for us to interact with other people when expressing commands and instructions. However, using language is seldom an easy task when humans need to express their intent towards robots, since most…

机器人学 · 计算机科学 2022-03-28 Arthur Bucker , Luis Figueredo , Sami Haddadin , Ashish Kapoor , Shuang Ma , Rogerio Bonatti

Rapid global urbanization is a double-edged sword, heralding promises of economical prosperity and public health while also posing unique environmental and humanitarian challenges. Smart and connected communities (S&CCs) apply data-centric…

The Transformer model has shown strong performance in multivariate time series forecasting by leveraging channel-wise self-attention. However, this approach lacks temporal constraints when computing temporal features and does not utilize…

机器学习 · 计算机科学 2025-05-06 Shiwei Guo , Ziang Chen , Yupeng Ma , Yunfei Han , Yi Wang

Due to the proficiency of self-attention mechanisms (SAMs) in capturing dependencies in sequence modeling, several existing dynamic graph neural networks (DGNNs) utilize Transformer architectures with various encoding designs to capture…

机器学习 · 计算机科学 2025-06-03 Jie Peng , Zhewei Wei , Yuhang Ye

Question Answering (QA) is a task that entails reasoning over natural language contexts, and many relevant works augment language models (LMs) with graph neural networks (GNNs) to encode the Knowledge Graph (KG) information. However, most…

计算与语言 · 计算机科学 2023-04-26 Jinyoung Park , Hyeong Kyu Choi , Juyeon Ko , Hyeonjin Park , Ji-Hoon Kim , Jisu Jeong , Kyungmin Kim , Hyunwoo J. Kim

Natural Question Answering (QA) datasets play a crucial role in evaluating the capabilities of large language models (LLMs), ensuring their effectiveness in real-world applications. Despite the numerous QA datasets that have been developed…

Transformers have made significant strides across various artificial intelligence domains, including natural language processing, computer vision, and audio processing. This success has naturally garnered considerable interest from both…

图像与视频处理 · 电气工程与系统科学 2024-08-12 Elyas Rashno , Amir Eskandari , Aman Anand , Farhana Zulkernine

The ubiquity of time series data creates a strong demand for general-purpose foundation models, yet developing them for classification remains a significant challenge, largely due to the high cost of labeled data. Foundation models capable…

机器学习 · 计算机科学 2025-11-27 Chin-Chia Michael Yeh , Uday Singh Saini , Junpeng Wang , Xin Dai , Xiran Fan , Jiarui Sun , Yujie Fan , Yan Zheng

Large Language Models (LLMs) have gained significant attention in the field of natural language processing (NLP) due to their wide range of applications. However, training LLMs for languages other than English poses significant challenges,…

计算与语言 · 计算机科学 2024-05-20 Yudong Li , Yuhao Feng , Wen Zhou , Zhe Zhao , Linlin Shen , Cheng Hou , Xianxu Hou

The adaptation of large language models (LLMs) to time series forecasting poses unique challenges, as time series data is continuous in nature, while LLMs operate on discrete tokens. Despite the success of LLMs in natural language…

计算与语言 · 计算机科学 2025-08-05 Taibiao Zhao , Xiaobing Chen , Mingxuan Sun

Multi-modal language model has made advanced progress in vision and audio, but still faces significant challenges in dealing with complex reasoning tasks in the time series domain. The reasons are twofold. First, labels for multi-modal time…

机器学习 · 计算机科学 2025-03-10 Haochuan Zhang , Chunhua Yang , Jie Han , Liyang Qin , Xiaoli Wang

Time series forecasting holds significant importance across various industries, including finance, transportation, energy, healthcare, and climate. Despite the widespread use of linear networks due to their low computational cost and…

机器学习 · 计算机科学 2025-05-02 Chengsen Wang , Qi Qi , Jingyu Wang , Haifeng Sun , Zirui Zhuang , Jianxin Liao

Time-series classification is one of the most frequently performed tasks in industrial data science, and one of the most widely used data representation in the industrial setting is tabular representation. In this work, we propose a novel…

机器学习 · 计算机科学 2021-10-06 Sharath M Shankaranarayana , Davor Runje

Conventional forecasting methods rely on unimodal time series data, limiting their ability to exploit rich textual information. Recently, large language models (LLMs) and time series foundation models (TSFMs) have demonstrated powerful…

机器学习 · 计算机科学 2025-05-16 Chengsen Wang , Qi Qi , Zhongwen Rao , Lujia Pan , Jingyu Wang , Jianxin Liao

Biomedical signal classification presents unique challenges due to long sequences, complex temporal dynamics, and multi-scale frequency patterns that are poorly captured by standard transformer architectures. We propose WaveFormer, a…

机器学习 · 计算机科学 2026-02-13 Habib Irani , Bikram De , Vangelis Metsis