no code implementations • CCL 2020 • Chao Feng, Haihui Li, Hongya Zhao, Yun Xue, Jingyao Tang
近年来, 作为细粒度的属性级别情感分析在商业界和学术界受到越来越多的关注, 其目的在于识别一个句子中多个属性词所对应的情感极性。目前, 在解决属性级别情感分析问题的绝大多数工作都集中在注意力机制的设计上, 以此突出上下文和属性词中不同词对于属性级别情感分析的贡献, 同时使上下文和属性词之间相互关联。本文提出使用层次注意力机制和门机制处理属性级别情感分析任务, 在得到属性词的隐藏状态之后, 通过注意力机制得到属性词新的表示, 然后利用属性词新的表示和注意力机制进一步得到上下文新的表示, 层次注意力机制的设计使得上下文和属性词的表达更加准确;同时通过门机制选择对属性词而言上下文中有用的信息, 以此丰富上下文的表达, 在SemEval 2014 Task4和Twitter数据集上的实验结果表明本文提出模型的有效性。
no code implementations • 10 Oct 2024 • Chao Feng, Hongjie Guan, Alberto Huertas Celdrán, Jan von der Assen, Gérôme Bovet, Burkhard Stiller
Federated Learning (FL) performance is highly influenced by data distribution across clients, and non-Independent and Identically Distributed (non-IID) leads to a slower convergence of the global model and a decrease in model effectiveness.
no code implementations • 8 Oct 2024 • Alberto Huertas Celdrán, Chao Feng, Sabyasachi Banik, Gerome Bovet, Gregorio Martinez Perez, Burkhard Stiller
Among the FL paradigm, horizontal FL, where clients share the same set of features but different data samples, has been extensively studied in both centralized and decentralized settings.
no code implementations • 2 Sep 2024 • Chao Feng, Huizhi Wang, Yong Zeng
The commonly used linear processing schemes include the maximum-ratio combining (MRC), zero-forcing (ZF) and minimum mean squared error (MMSE) beamforming, which may result in the unfavorable performance or complexity as the antenna number grows.
1 code implementation • 21 Aug 2024 • Ze Liu, Jin Zhang, Chao Feng, Defu Lian, Jie Wang, Enhong Chen
Although advancements in deep learning have significantly enhanced the recommendation accuracy of deep recommendation models, these methods still suffer from low recommendation efficiency.
no code implementations • 4 Aug 2024 • Huizhi Wang, Chao Feng, Yong Zeng, Shi Jin, Chau Yuen, Bruno Clerckx, Rui Zhang
Given the same number of array elements, the performance of sparse MIMO is compared with conventional MIMO.
no code implementations • 19 Jul 2024 • Fengyu Yang, Chao Feng, Daniel Wang, Tianye Wang, Ziyao Zeng, Zhiyang Xu, Hyoungseob Park, Pengliang Ji, Hanbin Zhao, Yuanning Li, Alex Wong
Understanding neural activity and information representation is crucial for advancing knowledge of brain function and cognition.
no code implementations • 8 Jul 2024 • Boyang Wang, Nikhil Sridhar, Chao Feng, Mark Van der Merwe, Adam Fishman, Nima Fazeli, Jeong Joon Park
We propose a robot learning method for communicating, planning, and executing a wide range of tasks, dubbed This&That.
no code implementations • 14 Jun 2024 • Wenhui Yu, Chao Feng, Yanze Zhang, Lantao Hu, Peng Jiang, Han Li
The lifelong user behavior sequence provides abundant information of user preference and gains impressive improvement in the recommendation task, however increases computational consumption significantly.
no code implementations • 18 Feb 2024 • Zhiyang Xu, Chao Feng, Rulin Shao, Trevor Ashby, Ying Shen, Di Jin, Yu Cheng, Qifan Wang, Lifu Huang
Despite vision-language models' (VLMs) remarkable capabilities as versatile visual assistants, two substantial challenges persist within the existing VLM frameworks: (1) lacking task diversity in pretraining and visual instruction tuning, and (2) annotation error and bias in GPT-4 synthesized instruction tuning data.
no code implementations • CVPR 2024 • Fengyu Yang, Chao Feng, Ziyang Chen, Hyoungseob Park, Daniel Wang, Yiming Dou, Ziyao Zeng, Xien Chen, Rit Gangopadhyay, Andrew Owens, Alex Wong
We introduce UniTouch, a unified tactile model for vision-based touch sensors connected to multiple modalities, including vision, language, and sound.
no code implementations • 12 Oct 2023 • Chao Feng, Alberto Huertas Celdrán, Janosch Baltensperger, Enrique Tomás Martínez Beltrán, Pedro Miguel Sánchez Sánchez, Gérôme Bovet, Burkhard Stiller
Decentralized Federated Learning (DFL) emerges as an innovative paradigm to train collaborative models, addressing the single point of failure limitation.
no code implementations • 6 Sep 2023 • Chao Feng, Xinyu Zhang, Zichu Fei
In some previous works, additional modules like graph neural networks (GNNs) are trained on retrieved knowledge from external knowledge bases, aiming to mitigate the problem of lacking domain-specific knowledge.
no code implementations • 11 Aug 2023 • Chao Feng, Alberto Huertas Celdran, Pedro Miguel Sanchez Sanchez, Jan Kreischer, Jan von der Assen, Gerome Bovet, Gregorio Martinez Perez, Burkhard Stiller
Recent research has shown that the integration of Reinforcement Learning (RL) with Moving Target Defense (MTD) can enhance cybersecurity in Internet-of-Things (IoT) devices.
1 code implementation • 20 Jul 2023 • Muriel Figueredo Franco, Fabian Künzler, Jan von der Assen, Chao Feng, Burkhard Stiller
Therefore, managing risk exposure and cybersecurity strategies is essential for digitized companies that want to survive in competitive markets.
1 code implementation • 16 Jun 2023 • Enrique Tomás Martínez Beltrán, Ángel Luis Perales Gómez, Chao Feng, Pedro Miguel Sánchez Sánchez, Sergio López Bernal, Gérôme Bovet, Manuel Gil Pérez, Gregorio Martínez Pérez, Alberto Huertas Celdrán
To overcome these challenges, this paper presents Fedstellar, a platform extended from p2pfl library and designed to train FL models in a decentralized, semi-decentralized, and centralized fashion across diverse federations of physical or virtualized devices.
1 code implementation • CVPR 2023 • Chao Feng, Ziyang Chen, Andrew Owens
Manipulated videos often contain subtle inconsistencies between their visual and audio signals.
Ranked #3 on DeepFake Detection on FakeAVCeleb
1 code implementation • 14 Aug 2022 • Chao Feng, Jui Po Hung, Aishan Li, Jieping Yang, Xinyu Zhang
The novelty of this project is to utilize the ordinal information among labels and add a new regression task, which can help the model learn more discriminative feature embedding for fine-grained classification tasks.
no code implementations • 23 Jan 2022 • Chao Feng, Defu Lian, Xiting Wang, Zheng Liu, Xing Xie, Enhong Chen
Instead of searching the nearest neighbor for the query, we search the item with maximum inner product with query on the proximity graph.
7 code implementations • 29 Nov 2021 • Eric Zhongcong Xu, Zeyang Song, Satoshi Tsutsui, Chao Feng, Mang Ye, Mike Zheng Shou
Audio-visual speaker diarization aims at detecting "who spoke when" using both auditory and visual signals.
1 code implementation • 1 Sep 2021 • Mingkuan Liu, Chi Zhang, Hua Xing, Chao Feng, Monchu Chen, Judith Bishop, Grace Ngapo
Our A/B testing and pilot results demonstrated the HITL pipeline can improve annotation speed and capacity by at least 80% and quality is comparable to or higher than manual double pass annotation.
no code implementations • FinNLP 2021 • Chao Feng, Shi-jie We
This paper presents the participation of the MiniTrue team in the FinSim-3 shared task on learning semantic similarities for the financial domain in English language.
no code implementations • 29 May 2021 • Chao Feng
This paper presents the participation of the MiniTrue team in the EXIST 2021 Challenge on the sexism detection in social media task for English and Spanish.
no code implementations • 20 Apr 2021 • Chao Qian, Dan-Xuan Liu, Chao Feng, Ke Tang
Evolutionary algorithms (EAs) are general-purpose optimization algorithms, inspired by natural evolution.
no code implementations • IJCNLP 2019 • Miao Fan, Chao Feng, Mingming Sun, Ping Li
Given a product, a selector (agent) learns from both the keys in the product metadata and one of its reviews to take an action that selects the correct value, and a successive predictor (network) makes the free-text review attend to this value to obtain better neural representations for helpfulness assessment.