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相关论文: Text Reinforcement for Multimodal Time Series Fore…

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Recently, there has been a surge of Transformer-based solutions for the long-term time series forecasting (LTSF) task. Despite the growing performance over the past few years, we question the validity of this line of research in this work.…

人工智能 · 计算机科学 2022-08-18 Ailing Zeng , Muxi Chen , Lei Zhang , Qiang Xu

Converting different modalities into general text, serving as input prompts for large language models (LLMs), is a common method to align multimodal models when there is limited pairwise data. This text-centric approach leverages the unique…

计算与语言 · 计算机科学 2024-07-09 Ting-Yu Yen , Yun-Da Tsai , Keng-Te Liao , Shou-De Lin

As large language models (LLMs) are increasingly used in Text-to-SQL tasks, Reinforcement Learning (RL) has become a common method for improving performance. Existing methods primarily rely on static execution feedback, which restricts…

人工智能 · 计算机科学 2025-10-30 Zekun Xu , Siyu Xia , Chuhuai Yue , Jiajun Chai , Mingxue Tian , Xiaohan Wang , Wei Lin , Haoxuan Li , Guojun Yin

In this paper, we propose a multi-timescale replay (MTR) buffer for improving continual learning in RL agents faced with environments that are changing continuously over time at timescales that are unknown to the agent. The basic MTR buffer…

机器学习 · 计算机科学 2020-04-17 Christos Kaplanis , Claudia Clopath , Murray Shanahan

We propose a reinforcement learning (RL) framework that leverages multimodal data including historical stock prices, sentiment analysis, and topic embeddings from news articles, to optimize trading strategies for SP100 stocks. Building upon…

投资组合管理 · 定量金融 2024-12-24 Sumit Nawathe , Ravi Panguluri , James Zhang , Sashwat Venkatesh

Train timetable rescheduling (TTR) aims to promptly restore the original operation of trains after unexpected disturbances or disruptions. Currently, this work is still done manually by train dispatchers, which is challenging to maintain…

机器学习 · 计算机科学 2024-01-17 Peng Yue , Yaochu Jin , Xuewu Dai , Zhenhua Feng , Dongliang Cui

This work summarizes two ways to accomplish Time-Series (TS) tasks in today's Large Language Model (LLM) context: LLM-for-TS (model-centric) designs and trains a fundamental large model, or fine-tunes a pre-trained LLM for TS data;…

计算与语言 · 计算机科学 2024-02-23 Chenxi Sun , Hongyan Li , Yaliang Li , Shenda Hong

Text-to-speech (TTS) synthesis is the process of producing synthesized speech from text or phoneme input. Traditional TTS models contain multiple processing steps and require external aligners, which provide attention alignments of…

音频与语音处理 · 电气工程与系统科学 2021-06-08 Hyunseung Chung , Sang-Hoon Lee , Seong-Whan Lee

The World Wide Web needs reliable predictive capabilities to respond to changes in user behavior and usage patterns. Time series forecasting (TSF) is a key means to achieve this goal. In recent years, the large language models (LLMs) for…

机器学习 · 计算机科学 2026-01-23 Jianqi Zhang , Jingyao Wang , Wenwen Qiang , Fanjiang Xu , Changwen Zheng

Evaluating the readability of a text can significantly facilitate the precise expression of information in written form. The formulation of text readability assessment involves the identification of meaningful properties of the text…

计算与语言 · 计算机科学 2023-10-24 Hamid Mohammadi , Seyed Hossein Khasteh , Tahereh Firoozi , Taha Samavati

Recent Transformer-based large language models (LLMs) demonstrate in-context learning ability to perform various functions based solely on the provided context, without updating model parameters. To fully utilize the in-context capabilities…

机器学习 · 计算机科学 2026-02-06 Jiecheng Lu , Yan Sun , Shihao Yang

This paper introduces TempSamp-R1, a new reinforcement fine-tuning framework designed to improve the effectiveness of adapting multimodal large language models (MLLMs) to video temporal grounding tasks. We reveal that existing reinforcement…

计算机视觉与模式识别 · 计算机科学 2025-09-26 Yunheng Li , Jing Cheng , Shaoyong Jia , Hangyi Kuang , Shaohui Jiao , Qibin Hou , Ming-Ming Cheng

Multivariate time series prediction has applications in a wide variety of domains and is considered to be a very challenging task, especially when the variables have correlations and exhibit complex temporal patterns, such as seasonality…

机器学习 · 计算机科学 2020-01-07 Yuya Jeremy Ong , Mu Qiao , Divyesh Jadav

To meet the requirements of real-world applications, it is essential to control generations of large language models (LLMs). Prior research has tried to introduce reinforcement learning (RL) into controllable text generation while most…

计算与语言 · 计算机科学 2024-03-19 Wendi Li , Wei Wei , Kaihe Xu , Wenfeng Xie , Dangyang Chen , Yu Cheng

In information retrieval (IR) and related tasks, term weighting approaches typically consider the frequency of the term in the document and in the collection in order to compute a score reflecting the importance of the term for the…

机器学习 · 计算机科学 2021-09-22 Alejandro Moreo Fernández , Andrea Esuli , Fabrizio Sebastiani

Time series forecasting uses historical data to predict future trends, leveraging the relationships between past observations and available features. In this paper, we propose RAFT, a retrieval-augmented time series forecasting method to…

机器学习 · 计算机科学 2025-05-08 Sungwon Han , Seungeon Lee , Meeyoung Cha , Sercan O Arik , Jinsung Yoon

Multi-dimensional time series data, such as matrix and tensor-variate time series, are increasingly prevalent in fields such as economics, finance, and climate science. Traditional Transformer models, though adept with sequential data, do…

机器学习 · 计算机科学 2024-10-29 Linghang Kong , Elynn Chen , Yuzhou Chen , Yuefeng Han

Data augmentation is an effective technique for improving the performance of machine learning models. However, it has not been explored as extensively in natural language processing (NLP) as it has in computer vision. In this paper, we…

计算与语言 · 计算机科学 2024-01-04 Himmet Toprak Kesgin , Mehmet Fatih Amasyali

Time series data is fundamental to decision-making across many domains including healthcare, finance, power systems, and logistics. However, analyzing this data correctly often requires incorporating unstructured contextual information,…

机器学习 · 计算机科学 2026-03-17 Felix Parker , Nimeesha Chan , Chi Zhang , Kimia Ghobadi

Previously, a machine speech chain, which is based on sequence-to-sequence deep learning, was proposed to mimic speech perception and production behavior. Such chains separately processed listening and speaking by automatic speech…

计算与语言 · 计算机科学 2019-11-15 Johanes Effendi , Andros Tjandra , Sakriani Sakti , Satoshi Nakamura