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Continual learning seeks to enable deep learners to train on a series of tasks of unknown length without suffering from the catastrophic forgetting of previous tasks. One effective solution is replay, which involves storing few previous…

机器学习 · 计算机科学 2023-08-04 Daniel Brignac , Niels Lobo , Abhijit Mahalanobis

We tackle the problem of discovering novel classes in an image collection given labelled examples of other classes. This setting is similar to semi-supervised learning, but significantly harder because there are no labelled examples for the…

计算机视觉与模式识别 · 计算机科学 2020-02-14 Kai Han , Sylvestre-Alvise Rebuffi , Sebastien Ehrhardt , Andrea Vedaldi , Andrew Zisserman

Continual learning from data streams is among the most important topics in contemporary machine learning. One of the biggest challenges in this domain lies in creating algorithms that can continuously adapt to arriving data. However,…

机器学习 · 计算机科学 2021-04-22 Łukasz Korycki , Bartosz Krawczyk

In today's connected world, the generation of massive streaming data across diverse domains has become commonplace. In the presence of concept drift, class imbalance, label scarcity, and new class emergence, they jointly degrade…

机器学习 · 计算机科学 2026-02-11 Jin Li , Kleanthis Malialis , Marios Polycarpou

A common practice in transfer learning is to initialize the downstream model weights by pre-training on a data-abundant upstream task. In object detection specifically, the feature backbone is typically initialized with Imagenet classifier…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Cristina Vasconcelos , Vighnesh Birodkar , Vincent Dumoulin

In many situations, classes of data points of primary interest also happen to be those that are least numerous. A well-known example is detection of fraudulent transactions among the collection of all financial transactions, the vast…

机器学习 · 计算机科学 2019-05-29 Henry Kvinge , Elin Farnell , Jingya Li , Yujia Chen

Although deep learning approaches have stood out in recent years due to their state-of-the-art results, they continue to suffer from catastrophic forgetting, a dramatic decrease in overall performance when training with new classes added…

计算机视觉与模式识别 · 计算机科学 2018-09-05 Francisco M. Castro , Manuel J. Marín-Jiménez , Nicolás Guil , Cordelia Schmid , Karteek Alahari

Deep autoregressive models have shown state-of-the-art performance in density estimation for natural images on large-scale datasets such as ImageNet. However, such models require many thousands of gradient-based weight updates and unique…

神经与进化计算 · 计算机科学 2018-03-01 Scott Reed , Yutian Chen , Thomas Paine , Aäron van den Oord , S. M. Ali Eslami , Danilo Rezende , Oriol Vinyals , Nando de Freitas

Real-world data often exhibits sequential dependence, across diverse domains such as human behavior, medicine, finance, and climate modeling. Probabilistic methods capture the inherent uncertainty associated with prediction in these…

机器学习 · 统计学 2024-03-08 Alex Boyd

We study a multiclass multiple instance learning (MIL) problem where the labels only suggest whether any instance of a class exists or does not exist in a training sample or example. No further information, e.g., the number of instances of…

机器学习 · 统计学 2019-03-15 Xi-Lin Li

Existing salient instance detection (SID) methods typically learn from pixel-level annotated datasets. In this paper, we present the first weakly-supervised approach to the SID problem. Although weak supervision has been considered in…

计算机视觉与模式识别 · 计算机科学 2020-09-30 Xin Tian , Ke Xu , Xin Yang , Baocai Yin , Rynson W. H. Lau

Rare diseases affect hundreds of millions worldwide, yet diagnosis often spans years. Convectional pipelines decouple noisy evidence extraction from downstream inferential diagnosis, and general/medical large language models (LLMs) face…

Transductive inference is widely used in few-shot learning, as it leverages the statistics of the unlabeled query set of a few-shot task, typically yielding substantially better performances than its inductive counterpart. The current…

机器学习 · 计算机科学 2022-04-26 Olivier Veilleux , Malik Boudiaf , Pablo Piantanida , Ismail Ben Ayed

Rapid learning requires flexible representations to quickly adopt to new evidence. We develop a novel class of models called Attentive Recurrent Comparators (ARCs) that form representations of objects by cycling through them and making…

计算机视觉与模式识别 · 计算机科学 2017-07-03 Pranav Shyam , Shubham Gupta , Ambedkar Dukkipati

In industrial scenarios, it is crucial not only to identify anomalous items but also to classify the type of anomaly. However, research on anomaly multi-classification remains largely unexplored. This paper proposes a novel and valuable…

计算机视觉与模式识别 · 计算机科学 2024-06-18 Jie Liu , Yao Wu , Xiaotong Luo , Zongze Wu

In the online continual learning paradigm, agents must learn from a changing distribution while respecting memory and compute constraints. Experience Replay (ER), where a small subset of past data is stored and replayed alongside new data,…

机器学习 · 计算机科学 2022-04-26 Lucas Caccia , Rahaf Aljundi , Nader Asadi , Tinne Tuytelaars , Joelle Pineau , Eugene Belilovsky

The fundamental problem in short-text classification is \emph{feature sparseness} -- the lack of feature overlap between a trained model and a test instance to be classified. We propose \emph{ClassiNet} -- a network of classifiers trained…

计算与语言 · 计算机科学 2018-04-17 Danushka Bollegala , Vincent Atanasov , Takanori Maehara , Ken-ichi Kawarabayashi

In the online continual learning paradigm, agents must learn from a changing distribution while respecting memory and compute constraints. Experience Replay (ER), where a small subset of past data is stored and replayed alongside new data,…

机器学习 · 计算机科学 2022-05-03 Lucas Caccia , Rahaf Aljundi , Nader Asadi , Tinne Tuytelaars , Joelle Pineau , Eugene Belilovsky

At present, object recognition studies are mostly conducted in a closed lab setting with classes in test phase typically in training phase. However, real-world problem is far more challenging because: i) new classes unseen in the training…

机器学习 · 计算机科学 2020-03-24 Xiaojie Guo , Amir Alipour-Fanid , Lingfei Wu , Hemant Purohit , Xiang Chen , Kai Zeng , Liang Zhao

Text classification is usually studied by labeling natural language texts with relevant categories from a predefined set. In the real world, new classes might keep challenging the existing system with limited labeled data. The system should…

计算与语言 · 计算机科学 2021-04-27 Congying Xia , Wenpeng Yin , Yihao Feng , Philip Yu