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As an effective way of metric learning, triplet loss has been widely used in many deep learning tasks, including face recognition and person-ReID, leading to many states of the arts. The main innovation of triplet loss is using feature map…

机器学习 · 计算机科学 2017-11-15 Gongze Cao , Yezhou Yang , Jie Lei , Cheng Jin , Yang Liu , Mingli Song

Machine Learning (ML) has proven to be effective in many application domains. However, ML methods can be vulnerable to adversarial attacks, in which an attacker tries to fool the classification/prediction mechanism by crafting the input…

密码学与安全 · 计算机科学 2022-02-01 Maged Abdelaty , Sandra Scott-Hayward , Roberto Doriguzzi-Corin , Domenico Siracusa

For extremely weak-supervised text classification, pioneer research generates pseudo labels by mining texts similar to the class names from the raw corpus, which may end up with very limited or even no samples for the minority classes.…

计算与语言 · 计算机科学 2024-06-18 Letian Peng , Yi Gu , Chengyu Dong , Zihan Wang , Jingbo Shang

Large Language Models (LLMs) excel at generating synthetic data, but ensuring its quality and diversity remains challenging. We propose Genetic Prompt, a novel framework that combines genetic algorithms with LLMs to augment synthetic data…

计算与语言 · 计算机科学 2025-09-03 Guangzeng Han , Weisi Liu , Xiaolei Huang

Mainstream LLM research has primarily focused on enhancing their generative capabilities. However, even the most advanced LLMs experience uncertainty in their outputs, often producing varied results on different runs or when faced with…

计算与语言 · 计算机科学 2024-07-17 Jihyun Janice Ahn , Ryo Kamoi , Lu Cheng , Rui Zhang , Wenpeng Yin

Previous adversarial training raises model robustness under the compromise of accuracy on natural data. In this paper, we reduce natural accuracy degradation. We use the model logits from one clean model to guide learning of another one…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Jiequan Cui , Shu Liu , Liwei Wang , Jiaya Jia

Separation Logic with inductive definitions is a well-known approach for deductive verification of programs that manipulate dynamic data structures. Deciding verification conditions in this context is usually based on user-provided lemmas…

计算机科学中的逻辑 · 计算机科学 2015-07-21 Constantin Enea , Mihaela Sighireanu , Zhilin Wu

We show that the sum of the implicit generator log-density $\log p_g$ of a GAN with the logit score of the discriminator defines an energy function which yields the true data density when the generator is imperfect but the discriminator is…

机器学习 · 计算机科学 2021-07-08 Tong Che , Ruixiang Zhang , Jascha Sohl-Dickstein , Hugo Larochelle , Liam Paull , Yuan Cao , Yoshua Bengio

The proposed method, Discriminator Guidance, aims to improve sample generation of pre-trained diffusion models. The approach introduces a discriminator that gives explicit supervision to a denoising sample path whether it is realistic or…

计算机视觉与模式识别 · 计算机科学 2023-06-06 Dongjun Kim , Yeongmin Kim , Se Jung Kwon , Wanmo Kang , Il-Chul Moon

Deep neural networks and in particular, deep neural classifiers have become an integral part of many modern applications. Despite their practical success, we still have limited knowledge of how they work and the demand for such an…

机器学习 · 计算机科学 2020-06-04 Hamid Karimi , Tyler Derr , Jiliang Tang

Discriminative approaches to classification often learn shortcuts that hold in-distribution but fail even under minor distribution shift. This failure mode stems from an overreliance on features that are spuriously correlated with the…

机器学习 · 计算机科学 2026-01-01 Alexander C. Li , Ananya Kumar , Deepak Pathak

Non-intrusive Load Monitoring (NILM) algorithms, commonly referred to as load disaggregation algorithms, are fundamental tools for effective energy management. Despite the success of deep models in load disaggregation, they face various…

密码学与安全 · 计算机科学 2023-07-21 Hafsa Bousbiat , Yassine Himeur , Abbes Amira , Wathiq Mansoor

Graph contrastive learning (GCL) shows great potential in unsupervised graph representation learning. Data augmentation plays a vital role in GCL, and its optimal choice heavily depends on the downstream task. Many GCL methods with…

机器学习 · 计算机科学 2023-05-30 Xin Xiong , Furao Shen , Xiangyu Wang , Jian Zhao

Monitoring issue tracker submissions is a crucial software maintenance activity. A key goal is the prioritization of high risk, security-related bugs. If such bugs can be recognized early, the risk of propagation to dependent products and…

密码学与安全 · 计算机科学 2025-12-18 Sogol Masoumzadeh , Yufei Li , Shane McIntosh , Dániel Varró , Lili Wei

It is well-known that a deep neural network has a strong fitting capability and can easily achieve a low training error even with randomly assigned class labels. When the number of training samples is small, or the class labels are noisy,…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Avraham Chapman , Lingqiao Liu

Generative Adversarial Networks (GANs) for text generation have recently received many criticisms, as they perform worse than their MLE counterparts. We suspect previous text GANs' inferior performance is due to the lack of a reliable…

计算与语言 · 计算机科学 2021-04-28 Qingyang Wu , Lei Li , Zhou Yu

We extend Generative Adversarial Networks (GANs) to the semi-supervised context by forcing the discriminator network to output class labels. We train a generative model G and a discriminator D on a dataset with inputs belonging to one of N…

机器学习 · 统计学 2016-10-25 Augustus Odena

A discriminatively trained neural net classifier can fit the training data perfectly if all information about its input other than class membership has been discarded prior to the output layer. Surprisingly, past research has discovered…

机器学习 · 计算机科学 2021-07-23 Piotr Teterwak , Chiyuan Zhang , Dilip Krishnan , Michael C. Mozer

Generative adversarial networks (GANs) have achieved remarkable progress in recent years, but the continuously growing scale of models makes them challenging to deploy widely in practical applications. In particular, for real-time…

机器学习 · 计算机科学 2021-03-19 Liang Hou , Zehuan Yuan , Lei Huang , Huawei Shen , Xueqi Cheng , Changhu Wang

Large language models (LLMs) have shown great abilities of solving various natural language tasks in different domains. Due to the training objective of LLMs and their pre-training data, LLMs are not very well equipped for tasks involving…

计算与语言 · 计算机科学 2024-05-31 Jiuzhou Han , Nigel Collier , Wray Buntine , Ehsan Shareghi