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Federated learning (FL) is an emerging technique that trains massive and geographically distributed edge data while maintaining privacy. However, FL has inherent challenges in terms of fairness and computational efficiency due to the rising…

机器学习 · 计算机科学 2023-04-28 Yingchun Wang , Jingcai Guo , Jie Zhang , Song Guo , Weizhan Zhang , Qinghua Zheng

Fairness is becoming a rising concern w.r.t. machine learning model performance. Especially for sensitive fields such as criminal justice and loan decision, eliminating the prediction discrimination towards a certain group of population…

机器学习 · 计算机科学 2019-09-09 Xiaoqian Wang , Heng Huang

Machine learning systems are often deployed for making critical decisions like credit lending, hiring, etc. While making decisions, such systems often encode the user's demographic information (like gender, age) in their intermediate…

机器学习 · 计算机科学 2023-01-24 Somnath Basu Roy Chowdhury , Snigdha Chaturvedi

The potential for learned models to amplify existing societal biases has been broadly recognized. Fairness-aware classifier constraints, which apply equality metrics of performance across subgroups defined on sensitive attributes such as…

机器学习 · 计算机科学 2019-11-01 Ananth Balashankar , Alyssa Lees , Chris Welty , Lakshminarayanan Subramanian

Federated learning (FL) has emerged as a promising paradigm for enabling the collaborative training of models without centralized access to the raw data on local devices. In the typical FL paradigm (e.g., FedAvg), model weights are sent to…

机器学习 · 计算机科学 2024-12-25 Guangyu Sun , Umar Khalid , Matias Mendieta , Pu Wang , Chen Chen

Personalized Federated Learning (PFL) aims to learn personalized models for each client based on the knowledge across all clients in a privacy-preserving manner. Existing PFL methods generally assume that the underlying global data across…

机器学习 · 计算机科学 2023-03-28 Yang Lu , Pinxin Qian , Gang Huang , Hanzi Wang

In a conventional Federated Learning framework, client selection for training typically involves the random sampling of a subset of clients in each iteration. However, this random selection often leads to disparate performance among…

机器学习 · 计算机科学 2024-08-29 Andrés Catalino Castillo Jiménez , Ege C. Kaya , Lintao Ye , Abolfazl Hashemi

Preference alignment in Large Language Models (LLMs) has significantly improved their ability to adhere to human instructions and intentions. However, existing direct alignment algorithms primarily focus on relative preferences and often…

机器学习 · 计算机科学 2025-05-13 Shenao Zhang , Zhihan Liu , Boyi Liu , Yufeng Zhang , Yingxiang Yang , Yongfei Liu , Liyu Chen , Tao Sun , Zhaoran Wang

Federated Learning (FL) is a distributed machine learning framework in which a set of local communities collaboratively learn a shared global model while retaining all training data locally within each community. Two notions of fairness…

机器学习 · 计算机科学 2024-05-29 Yuying Duan , Yijun Tian , Nitesh Chawla , Michael Lemmon

Personalized federated learning (PFL) aims to harness the collective wisdom of clients' data while building personalized models tailored to individual clients' data distributions. Existing works offer personalization primarily to clients…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Hong-You Chen , Jike Zhong , Mingda Zhang , Xuhui Jia , Hang Qi , Boqing Gong , Wei-Lun Chao , Li Zhang

Reinforcement Learning with Human Feedback (RLHF) has emerged as a key paradigm for task-specific fine-tuning of language models using human preference data. While numerous publicly available preference datasets provide pairwise comparisons…

计算与语言 · 计算机科学 2025-11-03 Ashwin Kumar , Yuzi He , Aram H. Markosyan , Bobbie Chern , Imanol Arrieta-Ibarra

Learning from Preferential Feedback (LfPF) plays an essential role in training Large Language Models, as well as certain types of interactive learning agents. However, a substantial gap exists between the theory and application of LfPF…

机器学习 · 计算机科学 2024-03-29 Jonathan Colaço Carr , Prakash Panangaden , Doina Precup

Federated learning (FL) research has made progress in developing algorithms for distributed learning of global models, as well as algorithms for local personalization of those common models to the specifics of each client's local data…

机器学习 · 计算机科学 2023-10-05 Royson Lee , Minyoung Kim , Da Li , Xinchi Qiu , Timothy Hospedales , Ferenc Huszár , Nicholas D. Lane

Federated learning (FL) systems are susceptible to attacks from malicious actors who might attempt to corrupt the training model through various poisoning attacks. FL also poses new challenges in addressing group bias, such as ensuring fair…

机器学习 · 计算机科学 2023-06-08 Viktor Valadi , Xinchi Qiu , Pedro Porto Buarque de Gusmão , Nicholas D. Lane , Mina Alibeigi

Federated Learning (FL), while a breakthrough in decentralized machine learning, contends with significant challenges such as limited data availability and the variability of computational resources, which can stifle the performance and…

机器学习 · 计算机科学 2025-10-07 Jiaqi Wang , Xi Li

Decision making in crucial applications such as lending, hiring, and college admissions has witnessed increasing use of algorithmic models and techniques as a result of a confluence of factors such as ubiquitous connectivity, ability to…

人工智能 · 计算机科学 2020-09-08 G Roshan Lal , Sahin Cem Geyik , Krishnaram Kenthapadi

Federated learning is gaining popularity as a distributed machine learning method that can be used to deploy AI-dependent IoT applications while protecting client data privacy and security. Due to the differences of clients, a single global…

机器学习 · 计算机科学 2022-02-21 Xingjian Cao , Gang Sun , Hongfang Yu , Mohsen Guizani

Federated recommendation systems employ federated learning techniques to safeguard user privacy by transmitting model parameters instead of raw user data between user devices and the central server. Nevertheless, the current federated…

信息检索 · 计算机科学 2023-05-12 Sichun Luo , Yuanzhang Xiao , Xinyi Zhang , Yang Liu , Wenbo Ding , Linqi Song

Personalized Federated Learning (pFL) holds immense promise for tailoring machine learning models to individual users while preserving data privacy. However, achieving optimal performance in pFL often requires a careful balancing act…

机器学习 · 计算机科学 2024-09-12 Azal Ahmad Khan , Ahmad Faraz Khan , Haider Ali , Ali Anwar

Ensuring that large language models (LLMs) are both helpful and harmless is a critical challenge, as overly strict constraints can lead to excessive refusals, while permissive models risk generating harmful content. Existing approaches,…