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Direct Preference Optimization (DPO) has emerged as a simple and effective approach for aligning large language models (LLMs) with human preferences, bypassing the need for a learned reward model. Despite its growing adoption, a fundamental…

机器学习 · 计算机科学 2025-11-10 Yu Pan , Zhongze Cai , Guanting Chen , Huaiyang Zhong , Chonghuan Wang

Model selection requires repeatedly evaluating models on a given dataset and measuring their relative performances. In modern applications of machine learning, the models being considered are increasingly more expensive to evaluate and the…

机器学习 · 计算机科学 2020-10-21 Anant Raj , Cameron Musco , Lester Mackey , Nicolo Fusi

Existing subset selection methods for efficient learning predominantly employ discrete combinatorial and model-specific approaches which lack generalizability. For an unseen architecture, one cannot use the subset chosen for a different…

机器学习 · 计算机科学 2024-09-20 Eeshaan Jain , Tushar Nandy , Gaurav Aggarwal , Ashish Tendulkar , Rishabh Iyer , Abir De

Neural Ordinary Differential Equations (Neural ODEs) represent continuous-time dynamics with neural networks, offering advancements for modeling and control tasks. However, training Neural ODEs requires solving differential equations at…

机器学习 · 计算机科学 2025-02-24 Mariia Shapovalova , Calvin Tsay

The performance of Bayesian optimization (BO), a highly sample-efficient method for expensive black-box problems, is critically governed by the selection of its hyperparameters, including the kernel and acquisition functions. This presents…

机器学习 · 计算机科学 2026-05-25 Joon-Hyun Park , Mujin Cheon , Jeongsu Wi , Dong-Yeun Koh

Speculative Decoding (SD) is a key technique for accelerating Large Language Model (LLM) inference, but it typically requires training a draft model on a large dataset. We approach this problem from a data-centric perspective, finding that…

计算与语言 · 计算机科学 2026-02-19 Jiaming Fan , Daming Cao , Xiangzhong Luo , Jiale Fu , Chonghan Liu , Xu Yang

Deep learning models require an enormous amount of data for training. However, recently there is a shift in machine learning from model-centric to data-centric approaches. In data-centric approaches, the focus is to refine and improve the…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Muhammad Asif Khan , Ridha Hamila , Hamid Menouar

Instruction tuning has been proven effective in enhancing zero-shot generalization across various tasks and in improving the performance of specific tasks. For task-specific improvements, strategically selecting and training on related…

计算与语言 · 计算机科学 2024-10-18 Changho Lee , Janghoon Han , Seonghyeon Ye , Stanley Jungkyu Choi , Honglak Lee , Kyunghoon Bae

The data used to pretrain large language models has a decisive impact on a model's downstream performance, which has led to a large body of work on data selection methods that aim to automatically determine the most suitable data to use for…

计算与语言 · 计算机科学 2023-12-12 Alon Albalak , Liangming Pan , Colin Raffel , William Yang Wang

With the rising number of machine learning competitions, the world has witnessed an exciting race for the best algorithms. However, the involved data selection process may fundamentally suffer from evidence ambiguity and concept drift…

机器学习 · 计算机科学 2020-06-15 Hoang D. Nguyen , Xuan-Son Vu , Quoc-Tuan Truong , Duc-Trong Le

Enhancing the instruction-following ability of Large Language Models (LLMs) primarily demands substantial instruction-tuning datasets. However, the sheer volume of these imposes a considerable computational burden and annotation cost. To…

计算与语言 · 计算机科学 2023-11-15 Shengguang Wu , Keming Lu , Benfeng Xu , Junyang Lin , Qi Su , Chang Zhou

Modern foundation models often undergo iterative ``bootstrapping'' in their post-training phase: a model generates synthetic data, an external verifier filters out low-quality samples, and the high-quality subset is used for further…

机器学习 · 计算机科学 2025-10-17 Pu Yang , Yunzhen Feng , Ziyuan Chen , Yuhang Wu , Zhuoyuan Li

We propose EVOlutionary Selector (EVOS), an efficient training paradigm for accelerating Implicit Neural Representation (INR). Unlike conventional INR training that feeds all samples through the neural network in each iteration, our…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Weixiang Zhang , Shuzhao Xie , Chengwei Ren , Siyi Xie , Chen Tang , Shijia Ge , Mingzi Wang , Zhi Wang

Instruction tuning for large language models (LLMs) has gained attention from researchers due to its ability to unlock the potential of LLMs in following instructions. While instruction tuning offers advantages for facilitating the…

人工智能 · 计算机科学 2023-05-17 Hao Chen , Yiming Zhang , Qi Zhang , Hantao Yang , Xiaomeng Hu , Xuetao Ma , Yifan Yanggong , Junbo Zhao

Humans can resort to long-form inspection to build intuition on predicting the 3D configurations of unseen objects. The more we observe the object motion, the better we get at predicting its 3D state immediately. Existing systems either…

计算机视觉与模式识别 · 计算机科学 2025-04-25 Mingxuan Wu , Huang Huang , Justin Kerr , Chung Min Kim , Anthony Zhang , Brent Yi , Angjoo Kanazawa

Learned optimizers -- neural networks that are trained to act as optimizers -- have the potential to dramatically accelerate training of machine learning models. However, even when meta-trained across thousands of tasks at huge…

机器学习 · 计算机科学 2022-09-23 James Harrison , Luke Metz , Jascha Sohl-Dickstein

We introduce Dynamic Dropout, a novel regularization technique designed to enhance the training efficiency of Transformer models by dynamically adjusting the dropout rate based on training epochs or validation loss improvements. This…

机器学习 · 计算机科学 2024-11-06 Hanrui Yan , Dan Shao

In practice, data augmentation is assigned a predefined budget in terms of newly created samples per epoch. When using several types of data augmentation, the budget is usually uniformly distributed over the set of augmentations but one can…

机器学习 · 统计学 2022-02-08 Arnaud Deleruyelle , John Klein , Cristian Versari

Neural networks trained with SGD were recently shown to rely preferentially on linearly-predictive features and can ignore complex, equally-predictive ones. This simplicity bias can explain their lack of robustness out of distribution…

机器学习 · 计算机科学 2022-09-13 Damien Teney , Ehsan Abbasnejad , Simon Lucey , Anton van den Hengel

Continual learning aims to enable models to adapt to new datasets without losing performance on previously learned data, often assuming that prior data is no longer available. However, in many practical scenarios, both old and new data are…

机器学习 · 计算机科学 2025-03-03 Eli Verwimp , Guy Hacohen , Tinne Tuytelaars