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Electronic Health Records are large repositories of valuable clinical data, with a significant portion stored in unstructured text format. This textual data includes clinical events (e.g., disorders, symptoms, findings, medications and…

计算与语言 · 计算机科学 2024-09-02 Shubham Agarwal , Thomas Searle , Mart Ratas , Anthony Shek , James Teo , Richard Dobson

Continual Relation Extraction (CRE) aims to continually learn new emerging relations while avoiding catastrophic forgetting. Existing CRE methods mainly use memory replay and contrastive learning to mitigate catastrophic forgetting.…

计算与语言 · 计算机科学 2025-08-19 Shaozhe Yin , Jinyu Guo , Kai Shuang , Xia Liu , Ruize Ou

Striking a balance between precision and efficiency presents a prominent challenge in the bird's-eye-view (BEV) 3D object detection. Although previous camera-based BEV methods achieved remarkable performance by incorporating long-term…

计算机视觉与模式识别 · 计算机科学 2024-01-09 Haowen Zheng , Dong Cao , Jintao Xu , Rui Ai , Weihao Gu , Yang Yang , Yanyan Liang

The brain-assisted target speaker extraction (TSE) aims to extract the attended speech from mixed speech by utilizing the brain neural activities, for example Electroencephalography (EEG). However, existing models overlook the issue of…

音频与语音处理 · 电气工程与系统科学 2025-06-03 Cunhang Fan , Ying Chen , Jian Zhou , Zexu Pan , Jingjing Zhang , Youdian Gao , Xiaoke Yang , Zhengqi Wen , Zhao Lv

Newsworthy events are broadcast through multiple mediums and prompt the crowds to produce comments on social media. In this paper, we propose to leverage on this behavioral dynamics to estimate the most relevant time periods for an event…

信息检索 · 计算机科学 2018-12-18 Flávio Martins , João Magalhães , Jamie Callan

Distant Supervised Relation Extraction (DSRE) is usually formulated as a problem of classifying a bag of sentences that contain two query entities, into the predefined relation classes. Most existing methods consider those relation classes…

计算与语言 · 计算机科学 2019-12-16 Yanjie Gou , Yinjie Lei , Lingqiao Liu , Pingping Zhang , Xi Peng

Time is implicitly embedded in classification process: classifiers are usually built on existing data while to be applied on future data whose distributions (e.g., label and token) may change. However, existing state-of-the-art…

计算与语言 · 计算机科学 2025-02-14 Weisi Liu , Guangzeng Han , Xiaolei Huang

Chain-of-thought (CoT) reasoning improves large language model performance on complex tasks, but often produces excessively long and inefficient reasoning traces. Existing methods shorten CoTs using length penalties or global entropy…

人工智能 · 计算机科学 2026-04-08 Xuan Xiong , Huan Liu , Li Gu , Zhixiang Chi , Yue Qiu , Yuanhao Yu , Yang Wang

Large Language Models (LLMs) encode meanings of words in the form of distributed semantics. Distributed semantics capture common statistical patterns among language tokens (words, phrases, and sentences) from large amounts of data. LLMs…

计算与语言 · 计算机科学 2023-06-27 Yuxin Zi , Kaushik Roy , Vignesh Narayanan , Manas Gaur , Amit Sheth

A computationally expensive and memory intensive neural network lies behind the recent success of language representation learning. Knowledge distillation, a major technique for deploying such a vast language model in resource-scarce…

计算与语言 · 计算机科学 2021-09-20 Geondo Park , Gyeongman Kim , Eunho Yang

Leveraging shared learning through Massively Multilingual Models, state-of-the-art machine translation models are often able to adapt to the paucity of data for low-resource languages. However, this performance comes at the cost of…

计算与语言 · 计算机科学 2022-11-10 Harshita Diddee , Sandipan Dandapat , Monojit Choudhury , Tanuja Ganu , Kalika Bali

Relation Extraction (RE) aims to label relations between groups of marked entities in raw text. Most current RE models learn context-aware representations of the target entities that are then used to establish relation between them. This…

计算与语言 · 计算机科学 2019-02-26 Gaurav Singh , Parminder Bhatia

Multimodal out-of-context news is a type of misinformation in which the image is used outside of its original context. Many existing works have leveraged multimodal large language models (MLLMs) for detecting out-of-context news. However,…

计算与语言 · 计算机科学 2025-05-29 Yimeng Gu , Zhao Tong , Ignacio Castro , Shu Wu , Gareth Tyson

The advancement of transformer neural networks has significantly elevated the capabilities of sentence similarity models, but they still struggle with highly discriminative tasks and may produce sub-optimal representations of important…

机器学习 · 计算机科学 2024-12-19 Logan Hallee , Rohan Kapur , Arjun Patel , Jason P. Gleghorn , Bohdan Khomtchouk

End-to-end approaches open a new way for more accurate and efficient spoken language understanding (SLU) systems by alleviating the drawbacks of traditional pipeline systems. Previous works exploit textual information for an SLU model via…

计算与语言 · 计算机科学 2021-06-11 Seongbin Kim , Gyuwan Kim , Seongjin Shin , Sangmin Lee

Knowledge distillation has proven effective for model compression by transferring knowledge from a larger network called the teacher to a smaller network called the student. Current knowledge distillation in time series is predominantly…

Knowledge distillation aims to transfer representation ability from a teacher model to a student model. Previous approaches focus on either individual representation distillation or inter-sample similarity preservation. While we argue that…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Jinguo Zhu , Shixiang Tang , Dapeng Chen , Shijie Yu , Yakun Liu , Aijun Yang , Mingzhe Rong , Xiaohua Wang

Response retrieval is a subset of neural ranking in which a model selects a suitable response from a set of candidates given a conversation history. Retrieval-based chat-bots are typically employed in information seeking conversational…

信息检索 · 计算机科学 2020-04-24 Amir Vakili Tahami , Kamyar Ghajar , Azadeh Shakery

Continual relation extraction (CRE) aims to solve the problem of catastrophic forgetting when learning a sequence of newly emerging relations. Recent CRE studies have found that catastrophic forgetting arises from the model's lack of…

计算与语言 · 计算机科学 2023-10-11 Weimin Xiong , Yifan Song , Peiyi Wang , Sujian Li

Multi-task learning (MTL) enables the efficient transfer of extra knowledge acquired from other tasks. The high correlation between multimodal sentiment analysis (MSA) and multimodal emotion recognition (MER) supports their joint training.…

人工智能 · 计算机科学 2025-05-21 Shuo Zhang , Jinsong Zhang , Zhejun Zhang , Lei Li