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The development of robust generative models for highly varied non-stationary time series data is a complex yet important problem. Traditional models for time series data prediction, such as Long Short-Term Memory (LSTM), are inefficient and…

机器学习 · 计算机科学 2024-11-18 Anton Johansson , Arunselvan Ramaswamy

The emerging paradigm of leveraging pretrained large language models (LLMs) for time series forecasting has predominantly employed linguistic-temporal modality alignment strategies through token-level or layer-wise feature mapping. However,…

人工智能 · 计算机科学 2025-05-20 Siming Sun , Kai Zhang , Xuejun Jiang , Wenchao Meng , Qinmin Yang

Multivariate time series forecasting, which analyzes historical time series to predict future trends, can effectively help decision-making. Complex relations among variables in MTS, including static, dynamic, predictable, and latent…

机器学习 · 计算机科学 2021-12-16 Yueyang Wang , Ziheng Duan , Yida Huang , Haoyan Xu , Jie Feng , Anni Ren

Time series analysis is crucial in diverse scenarios. Beyond forecasting, considerable real-world tasks are categorized into classification, imputation, and anomaly detection, underscoring different capabilities termed time series…

机器学习 · 计算机科学 2025-03-03 Haoran Zhang , Yong Liu , Yunzhong Qiu , Haixuan Liu , Zhongyi Pei , Jianmin Wang , Mingsheng Long

How to effectively incorporate cross-utterance information cues into a neural language model (LM) has emerged as one of the intriguing issues for automatic speech recognition (ASR). Existing research efforts on improving contextualization…

计算与语言 · 计算机科学 2021-10-04 Shih-Hsuan Chiu , Tien-Hong Lo , Fu-An Chao , Berlin Chen

Inductive knowledge graph completion has been considered as the task of predicting missing triplets between new entities that are not observed during training. While most inductive knowledge graph completion methods assume that all entities…

机器学习 · 计算机科学 2023-08-21 Jaejun Lee , Chanyoung Chung , Joyce Jiyoung Whang

Pre-trained contextual language models are ubiquitously employed for language understanding tasks, but are unsuitable for resource-constrained systems. Noncontextual word embeddings are an efficient alternative in these settings. Such…

计算与语言 · 计算机科学 2023-04-24 Anik Saha , Alex Gittens , Bulent Yener

We propose a novel deep structured learning framework for event temporal relation extraction. The model consists of 1) a recurrent neural network (RNN) to learn scoring functions for pair-wise relations, and 2) a structured support vector…

计算与语言 · 计算机科学 2019-09-26 Rujun Han , I-Hung Hsu , Mu Yang , Aram Galstyan , Ralph Weischedel , Nanyun Peng

We tackle the problem of identifying metaphors in text, treated as a sequence tagging task. The pre-trained word embeddings GloVe, ELMo and BERT have individually shown good performance on sequential metaphor identification. These…

计算与语言 · 计算机科学 2021-04-08 Rui Mao , Chenghua Lin , Frank Guerin

Pre-trained language models have recently contributed to significant advances in NLP tasks. Recently, multi-modal versions of BERT have been developed, using heavy pre-training relying on vast corpora of aligned textual and image data,…

计算与语言 · 计算机科学 2020-12-17 Thomas Scialom , Patrick Bordes , Paul-Alexis Dray , Jacopo Staiano , Patrick Gallinari

Pre-trained language models such as BERT have been proved to be powerful in many natural language processing tasks. But in some text classification applications such as emotion recognition and sentiment analysis, BERT may not lead to…

计算与语言 · 计算机科学 2025-06-03 Zixiao Zhu , Kezhi Mao

The core of the Knowledge Graph Completion (KGC) task is to predict and complete the missing relations or nodes in a KG. Common KGC tasks are mostly about inferring unknown elements with one or two elements being known in a triple. In…

计算与语言 · 计算机科学 2024-12-25 Yuan Yuan , Yajing Xu , Wen Zhang

Knowledge graph embedding techniques are widely used for knowledge graph refinement tasks such as graph completion and triple classification. These techniques aim at embedding the entities and relations of a Knowledge Graph (KG) in a low…

计算与语言 · 计算机科学 2022-11-22 Armita Khajeh Nassiri , Nathalie Pernelle , Fatiha Sais , Gianluca Quercini

How can we perform knowledge reasoning over temporal knowledge graphs (TKGs)? TKGs represent facts about entities and their relations, where each fact is associated with a timestamp. Reasoning over TKGs, i.e., inferring new facts from…

机器学习 · 计算机科学 2022-02-17 Namyong Park , Fuchen Liu , Purvanshi Mehta , Dana Cristofor , Christos Faloutsos , Yuxiao Dong

This study investigates how well computational embeddings align with human semantic judgments in the processing of English compound words. We compare static word vectors (GloVe) and contextualized embeddings (BERT) against human ratings of…

计算与语言 · 计算机科学 2025-11-03 Swarang Joshi

Temporal knowledge bases associate relational (s,r,o) triples with a set of times (or a single time instant) when the relation is valid. While time-agnostic KB completion (KBC) has witnessed significant research, temporal KB completion…

社会与信息网络 · 计算机科学 2020-10-13 Prachi Jain , Sushant Rathi , Mausam , Soumen Chakrabarti

The Knowledge Graph Entity Typing (KGET) task aims to predict missing type annotations for entities in knowledge graphs. Recent works only utilize the \textit{\textbf{structural knowledge}} in the local neighborhood of entities,…

计算与语言 · 计算机科学 2024-11-18 Muzhi Li , Minda Hu , Irwin King , Ho-fung Leung

Large language models (LLMs) have demonstrated strong performance in natural language generation but remain limited in knowle- dge-intensive tasks due to outdated or incomplete internal knowledge. Retrieval-Augmented Generation (RAG)…

人工智能 · 计算机科学 2025-08-05 Dong Li , Yichen Niu , Ying Ai , Xiang Zou , Biqing Qi , Jianxing Liu

Temporal knowledge graph reasoning (TKGR) aims to predict future events by inferring missing entities with dynamic knowledge structures. Existing LLM-based reasoning methods prioritize contextual over structural relations, struggling to…

机器学习 · 计算机科学 2026-01-30 Shiqi Fan , Quanming Yao , Hongyi Nie , Wentao Ma , Zhen Wang , Wen Hua

Knowledge Tracing (KT) aims to determine whether students will respond correctly to the next question, which is a crucial task in intelligent tutoring systems (ITS). In educational KT scenarios, transductive ID-based methods often face…

人工智能 · 计算机科学 2024-11-05 Lingyue Fu , Hao Guan , Kounianhua Du , Jianghao Lin , Wei Xia , Weinan Zhang , Ruiming Tang , Yasheng Wang , Yong Yu