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Recently, feature selection has become an increasingly important area of research due to the surge in high-dimensional datasets in all areas of modern life. A plethora of feature selection algorithms have been proposed, but it is difficult…

神经与进化计算 · 计算机科学 2019-10-24 Andrew Lensen , Bing Xue , Mengjie Zhang

Few-shot learning (FSL) aims to enable models to recognize novel objects or classes with limited labelled data. Feature generators, which synthesize new data points to augment limited datasets, have emerged as a promising solution to this…

计算机视觉与模式识别 · 计算机科学 2024-10-14 Heethanjan Kanagalingam , Thenukan Pathmanathan , Navaneethan Ketheeswaran , Mokeeshan Vathanakumar , Mohamed Afham , Ranga Rodrigo

Feature generation can significantly enhance learning outcomes, particularly for tasks with limited data. An effective way to improve feature generation is to expand the current feature space using existing features and enriching the…

计算与语言 · 计算机科学 2025-11-11 Xinhao Zhang , Jinghan Zhang , Fengran Mo , Dakshak Keerthi Chandra , Yu-Zhong Chen , Fei Xie , Kunpeng Liu

Feature selection can facilitate the learning of mixtures of discrete random variables as they arise, e.g. in crowdsourcing tasks. Intuitively, not all workers are equally reliable but, if the less reliable ones could be eliminated, then…

机器学习 · 统计学 2017-11-28 Vincent Zhao , Steven W. Zucker

We observe that incorporating a shared layer in a mixture-of-experts can lead to performance degradation. This leads us to hypothesize that learning shared features poses challenges in deep learning, potentially caused by the same feature…

机器学习 · 计算机科学 2024-05-21 Sejik Park

Despite the dramatic success in image generation, Generative Adversarial Networks (GANs) still face great challenges in synthesizing sequences of discrete elements, in particular human language. The difficulty in generator training arises…

计算与语言 · 计算机科学 2023-02-24 Yekun Chai , Qiyue Yin , Junge Zhang

Constructing decision trees online is a classical machine learning problem. Existing works often assume that features are readily available for each incoming data point. However, in many real world applications, both feature values and the…

机器学习 · 计算机科学 2025-06-18 Arman Rahbar , Ziyu Ye , Yuxin Chen , Morteza Haghir Chehreghani

We present a neural network for predicting purchasing intent in an Ecommerce setting. Our main contribution is to address the significant investment in feature engineering that is usually associated with state-of-the-art methods such as…

机器学习 · 计算机科学 2018-07-24 Humphrey Sheil , Omer Rana , Ronan Reilly

The pursuit of a universal AI-generated image (AIGI) detector often relies on aggregating data from numerous generators to improve generalization. However, this paper identifies a paradoxical phenomenon we term the Benefit then Conflict…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Ziheng Qin , Yuheng Ji , Renshuai Tao , Yuxuan Tian , Yuyang Liu , Yipu Wang , Xiaolong Zheng

Data quality remains a critical bottleneck in developing capable, competitive models. Researchers have explored many ways to generate top quality samples. Some works rely on rejection sampling: generating lots of synthetic samples and…

Fine-grained image recognition has been a hot research topic in computer vision due to its various applications. The-state-of-the-art is the part/region-based approaches that first localize discriminative parts/regions, and then learn their…

计算机视觉与模式识别 · 计算机科学 2019-08-07 Peng Zhang , Xinyu Zhu , Zhanzhan Cheng , Shuigeng Zhou , Yi Niu

We study classification problems where features are corrupted by noise and where the magnitude of the noise in each feature is influenced by the resources allocated to its acquisition. This is the case, for example, when multiple sensors…

人工智能 · 计算机科学 2016-07-12 Oran Richman , Shie Mannor

We consider the problem of data augmentation, i.e., generating artificial samples to extend a given corpus of training data. Specifically, we propose attributed-guided augmentation (AGA) which learns a mapping that allows to synthesize data…

计算机视觉与模式识别 · 计算机科学 2017-08-29 Mandar Dixit , Roland Kwitt , Marc Niethammer , Nuno Vasconcelos

Feature fusion is a commonly used strategy in image retrieval tasks, which aggregates the matching responses of multiple visual features. Feasible sets of features can be either descriptors (SIFT, HSV) for an entire image or the same…

信息检索 · 计算机科学 2018-11-01 Zhongdao Wang , Liang Zheng , Shengjin Wang

We introduce the batched set cover problem, which is a generalization of the online set cover problem. In this problem, the elements of the ground set that need to be covered arrive in batches. Our main technical contribution is a tight…

数据结构与算法 · 计算机科学 2018-11-28 Juan C. Martínez Mori , Samitha Samaranayake

In real-world scenarios, different features have different acquisition costs at test-time which necessitates cost-aware methods to optimize the cost and performance trade-off. This paper introduces a novel and scalable approach for…

机器学习 · 计算机科学 2018-12-10 Mohammad Kachuee , Sajad Darabi , Babak Moatamed , Majid Sarrafzadeh

The generative adversarial network (GAN) exhibits great superiority in the face attribute synthesis task. However, existing methods have very limited effects on the expansion of new attributes. To overcome the limitations of a single…

计算机视觉与模式识别 · 计算机科学 2020-04-16 Xin Ning , Shaohui Xu , Xiaoli Dong , Weijun Li , Fangzhe Nan , Yuanzhou Yao

Generative adversarial networks (GANs) are deep neural networks that allow us to sample from an arbitrary probability distribution without explicitly estimating the distribution. There is a generator that takes a latent vector as input and…

机器学习 · 计算机科学 2021-06-22 Alper Ahmetoğlu , Ethem Alpaydın

Combining multi-site data can strengthen and uncover trends, but is a task that is marred by the influence of site-specific covariates that can bias the data and therefore any downstream analyses. Post-hoc multi-site correction methods…

图像与视频处理 · 电气工程与系统科学 2021-11-09 Pedro Borges , Richard Shaw , Thomas Varsavsky , Kerstin Klaser , David Thomas , Ivana Drobnjak , Sebastien Ourselin , M Jorge Cardoso

Machine learning models, such as neural networks, decision trees, random forests, and gradient boosting machines, accept a feature vector, and provide a prediction. These models learn in a supervised fashion where we provide feature vectors…

机器学习 · 计算机科学 2020-11-03 Jeff Heaton