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A major goal of unsupervised learning is to discover data representations that are useful for subsequent tasks, without access to supervised labels during training. Typically, this involves minimizing a surrogate objective, such as the…

机器学习 · 计算机科学 2019-02-27 Luke Metz , Niru Maheswaranathan , Brian Cheung , Jascha Sohl-Dickstein

Supervised learning usually requires a large amount of labelled data. However, attaining ground-truth labels is costly for many tasks. Alternatively, weakly supervised methods learn with cheap weak signals that only approximately label some…

机器学习 · 计算机科学 2024-11-26 You Lu , Wenzhuo Song , Chidubem Arachie , Bert Huang

The amount of manually labeled data is limited in medical applications, so semi-supervised learning and automatic labeling strategies can be an asset for training deep neural networks. However, the quality of the automatically generated…

机器学习 · 计算机科学 2022-03-04 Wenhui Cui , Haleh Akrami , Anand A. Joshi , Richard M. Leahy

Current LLM unlearning methods face a critical security vulnerability that undermines their fundamental purpose: while they appear to successfully remove sensitive or harmful knowledge, this ``forgotten" information remains precariously…

机器学习 · 计算机科学 2025-10-01 Wenhan Wu , Zheyuan Liu , Chongyang Gao , Ren Wang , Kaize Ding

We solve a weakly supervised regression problem. Under "weakly" we understand that for some training points the labels are known, for some unknown, and for others uncertain due to the presence of random noise or other reasons such as lack…

机器学习 · 计算机科学 2021-04-15 Vladimir Berikov , Alexander Litvinenko

There is extensive interest in metric learning methods for image retrieval. Many metric learning loss functions focus on learning a correct ranking of training samples, but strongly overfit semantically inconsistent labels and require a…

机器学习 · 计算机科学 2023-06-05 Christopher Liao , Theodoros Tsiligkaridis , Brian Kulis

Neural Encoders are frequently used in the NLP domain to perform dense retrieval tasks, for instance, to generate the candidate documents for a given query in question-answering tasks. However, sparse annotation and label noise in the…

机器学习 · 计算机科学 2025-12-16 Arnab Sharma

Generative language models are usually pretrained on large text corpus via predicting the next token (i.e., sub-word/word/phrase) given the previous ones. Recent works have demonstrated the impressive performance of large generative…

计算与语言 · 计算机科学 2026-01-16 Zhenpeng Su , Xing Wu , Xue Bai , Zijia Lin , Hui Chen , Guiguang Ding , Wei Zhou , Songlin Hu

Obtaining accurate class labels is often costly or unreliable, and may also be limited by privacy or other practical conditions. Compared with asking an annotator to provide the exact class, it is often easier to ask whether the true label…

机器学习 · 计算机科学 2026-05-11 Jiaxu Su , Junpeng Li , Changchun Hua , Yana Yang

Unsupervised pre-trained word embeddings are used effectively for many tasks in natural language processing to leverage unlabeled textual data. Often these embeddings are either used as initializations or as fixed word representations for…

计算与语言 · 计算机科学 2018-08-08 Artuur Leeuwenberg , Marie-Francine Moens

Contrastive learning has shown outstanding performances in both supervised and unsupervised learning, and has recently been introduced to solve weakly supervised learning problems such as semi-supervised learning and noisy label learning.…

机器学习 · 计算机科学 2023-06-08 Jingyi Cui , Weiran Huang , Yifei Wang , Yisen Wang

The guidance from capability evaluations has greatly propelled the progress of both human society and Artificial Intelligence. However, as LLMs evolve, it becomes challenging to construct evaluation benchmarks for them with accurate labels…

计算与语言 · 计算机科学 2024-08-27 Peiwen Yuan , Shaoxiong Feng , Yiwei Li , Xinglin Wang , Boyuan Pan , Heda Wang , Yao Hu , Kan Li

Annotating datasets is one of the main costs in nowadays supervised learning. The goal of weak supervision is to enable models to learn using only forms of labelling which are cheaper to collect, as partial labelling. This is a type of…

机器学习 · 计算机科学 2021-02-02 Vivien Cabannes , Alessandro Rudi , Francis Bach

The performance of deep learning-based natural language processing systems is based on large amounts of labeled training data which, in the clinical domain, are not easily available or affordable. Weak supervision and in-context learning…

计算与语言 · 计算机科学 2025-04-02 Enshuo Hsu , Kirk Roberts

Self-supervised objectives have driven major advances in NLP by leveraging large-scale unlabeled data, but such resources are scarce for many of the world's languages. Surprisingly, they have not been explored much for character-level…

计算与语言 · 计算机科学 2025-06-06 Adam Wiemerslage , Katharina von der Wense

Training a deep neural network to maximize a target objective has become the standard recipe for successful machine learning over the last decade. These networks can be optimized with supervised learning, if the target objective is…

机器学习 · 计算机科学 2025-05-12 Bernhard Jaeger , Andreas Geiger

Weakly supervised vision-and-language pre-training (WVLP), which learns cross-modal representations with limited cross-modal supervision, has been shown to effectively reduce the data cost of pre-training while maintaining decent…

计算机视觉与模式识别 · 计算机科学 2023-05-26 Chi Chen , Peng Li , Maosong Sun , Yang Liu

Multi-task learning (MTL) trains deep neural networks to optimize several objectives simultaneously using a shared backbone, which leads to reduced computational costs, improved data efficiency, and enhanced performance through cross-task…

机器学习 · 计算机科学 2025-09-30 Hoang Phan , Lam Tran , Quyen Tran , Ngoc N. Tran , Tuan Truong , Qi Lei , Nhat Ho , Dinh Phung , Trung Le

As large language models advance toward superhuman performance, ensuring their alignment with human values and abilities grows increasingly complex. Weak-to-strong generalization offers a promising approach by leveraging predictions from…

机器学习 · 计算机科学 2025-05-29 Wei Yao , Wenkai Yang , Ziqiao Wang , Yankai Lin , Yong Liu

In several supervised learning scenarios, auxiliary losses are used in order to introduce additional information or constraints into the supervised learning objective. For instance, knowledge distillation aims to mimic outputs of a powerful…

机器学习 · 计算机科学 2022-12-08 Durga Sivasubramanian , Ayush Maheshwari , Pradeep Shenoy , Prathosh AP , Ganesh Ramakrishnan