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Fine-tuning has been demonstrated to be an effective method to improve the domain performance of large language models (LLMs). However, LLMs might fit the dataset bias and shortcuts for prediction, leading to poor generation performance.…

Computation and Language · Computer Science 2024-07-02 Zhongkun Liu , Zheng Chen , Mengqi Zhang , Zhaochun Ren , Pengjie Ren , Zhumin Chen

Recent advances in large language models highlighted the excessive quadratic cost of self-attention. Despite the significant research efforts, subquadratic attention methods still suffer from inferior performance in practice. We hypothesize…

Machine Learning · Computer Science 2025-05-02 Piotr Piękos , Róbert Csordás , Jürgen Schmidhuber

Sparse mixture of experts (SMoE) offers an appealing solution to scale up the model complexity beyond the mean of increasing the network's depth or width. However, effective training of SMoE has proven to be challenging due to the…

Sparse Mixture-of-Experts (MoE) is a neural architecture design that can be utilized to add learnable parameters to Large Language Models (LLMs) without increasing inference cost. Instruction tuning is a technique for training LLMs to…

Large pre-trained language models contain societal biases and carry along these biases to downstream tasks. Current in-processing bias mitigation approaches (like adversarial training) impose debiasing by updating a model's parameters,…

Computation and Language · Computer Science 2023-06-21 Deepak Kumar , Oleg Lesota , George Zerveas , Daniel Cohen , Carsten Eickhoff , Markus Schedl , Navid Rekabsaz

Recent work has shown pre-trained language models capture social biases from the large amounts of text they are trained on. This has attracted attention to developing techniques that mitigate such biases. In this work, we perform an…

Computation and Language · Computer Science 2022-04-05 Nicholas Meade , Elinor Poole-Dayan , Siva Reddy

Recent studies integrate Low-Rank Adaptation (LoRA) and Mixture-of-Experts (MoE) to further enhance the performance of parameter-efficient fine-tuning (PEFT) methods in Large Language Model (LLM) applications. Existing methods employ…

Computation and Language · Computer Science 2026-01-21 Jie Cao , Tianwei Lin , Bo Yuan , Rolan Yan , Hongyang He , Wenqiao Zhang , Juncheng Li , Dongping Zhang , Siliang Tang , Yueting Zhuang

Many studies have shown various biases targeting different demographic groups in language models, amplifying discrimination and harming fairness. Recent parameter modification debiasing approaches significantly degrade core capabilities…

Computation and Language · Computer Science 2025-10-01 Dianqing Liu , Yi Liu , Guoqing Jin , Zhendong Mao

Recent advances in Large Language Models (LLMs) have catalyzed the development of multi-agent systems (MAS) for complex reasoning tasks. However, existing MAS typically rely on pre-defined or pre-compiled communication topologies, which…

Machine Learning · Computer Science 2026-05-18 Xingjian Wu , Junkai Lu , Siyu Yan , Xiangfei Qiu , Jilin Hu , Chenjuan Guo , Bin Yang

Sparse Mixture of Expert (SMoE) models have emerged as a scalable alternative to dense models in language modeling. These models use conditionally activated feedforward subnetworks in transformer blocks, allowing for a separation between…

Machine Learning · Computer Science 2024-09-04 Soumajyoti Sarkar , Leonard Lausen , Volkan Cevher , Sheng Zha , Thomas Brox , George Karypis

It is widely recognized that deep neural networks are sensitive to bias in the data. This means that during training these models are likely to learn spurious correlations between data and labels, resulting in limited generalization…

Machine Learning · Computer Science 2024-12-06 Vito Paolo Pastore , Massimiliano Ciranni , Davide Marinelli , Francesca Odone , Vittorio Murino

Dataset bias is a critical challenge in machine learning since it often leads to a negative impact on a model due to the unintended decision rules captured by spurious correlations. Although existing works often handle this issue based on…

Machine Learning · Computer Science 2022-04-05 Seonguk Seo , Joon-Young Lee , Bohyung Han

Cross-lingual speech adaptation aims to solve the problem of leveraging multiple rich-resource languages to build models for a low-resource target language. Since the low-resource language has limited training data, speech recognition…

Computation and Language · Computer Science 2021-12-21 Wenxin Hou , Han Zhu , Yidong Wang , Jindong Wang , Tao Qin , Renjun Xu , Takahiro Shinozaki

Heterogeneous LoRA-rank methods address system heterogeneity in federated fine-tuning of foundation models by assigning client-specific ranks based on computational capabilities. However, these methods achieve only marginal computational…

Machine Learning · Computer Science 2026-05-19 Van-Tuan Tran , Hong-Hanh Nguyen-Le , Marco Ruffini , Merim Dzaferagic

Deep learning models have achieved excellent recognition results on large-scale video benchmarks. However, they perform poorly when applied to videos with rare scenes or objects, primarily due to the bias of existing video datasets. We…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Haodong Duan , Yue Zhao , Kai Chen , Yuanjun Xiong , Dahua Lin

We study the challenge of achieving theoretically grounded feature recovery using Sparse Autoencoders (SAEs) for the interpretation of Large Language Models. Existing SAE training algorithms often lack rigorous mathematical guarantees and…

Machine Learning · Computer Science 2025-06-18 Siyu Chen , Heejune Sheen , Xuyuan Xiong , Tianhao Wang , Zhuoran Yang

Existing NLP datasets contain various biases that models can easily exploit to achieve high performances on the corresponding evaluation sets. However, focusing on dataset-specific biases limits their ability to learn more generalizable…

Computation and Language · Computer Science 2020-10-08 Mingzhu Wu , Nafise Sadat Moosavi , Andreas Rücklé , Iryna Gurevych

Despite the efficacy of network sparsity in alleviating the deployment strain of Large Language Models (LLMs), it endures significant performance degradation. Applying Low-Rank Adaptation (LoRA) to fine-tune the sparse LLMs offers an…

Machine Learning · Computer Science 2025-02-21 Weizhong Huang , Yuxin Zhang , Xiawu Zheng , Yang Liu , Jing Lin , Yiwu Yao , Rongrong Ji

Model selection in machine learning (ML) is a crucial part of the Bayesian learning procedure. Model choice may impose strong biases on the resulting predictions, which can hinder the performance of methods such as Bayesian neural networks…

Machine Learning · Statistics 2022-08-09 Simón Rodríguez Santana , Luis A. Ortega , Daniel Hernández-Lobato , Bryan Zaldívar

Existing methods for adapting large language models (LLMs) to new tasks are not suited to multi-task adaptation because they modify all the model weights -- causing destructive interference between tasks. The resulting effects, such as…

Computation and Language · Computer Science 2024-06-26 Ashwinee Panda , Berivan Isik , Xiangyu Qi , Sanmi Koyejo , Tsachy Weissman , Prateek Mittal