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The exponential growth of volume, variety and velocity of data is raising the need for investigations of automated or semi-automated ways to extract useful patterns from the data. It requires deep expert knowledge and extensive…

机器学习 · 计算机科学 2020-07-22 Abbas Raza Ali , Marcin Budka , Bogdan Gabrys

While deep learning is a powerful tool for natural language processing (NLP) problems, successful solutions to these problems rely heavily on large amounts of annotated samples. However, manually annotating data is expensive and…

机器学习 · 计算机科学 2021-04-08 Rishi Hazra , Parag Dutta , Shubham Gupta , Mohammed Abdul Qaathir , Ambedkar Dukkipati

In critical applications of anomaly detection including computer security and fraud prevention, the anomaly detector must be configurable by the analyst to minimize the effort on false positives. One important way to configure the anomaly…

机器学习 · 计算机科学 2018-09-19 Shubhomoy Das , Md Rakibul Islam , Nitthilan Kannappan Jayakodi , Janardhan Rao Doppa

Three important issues are often encountered in Supervised and Semi-Supervised Classification: class-memberships are unreliable for some training units (label noise), a proportion of observations might depart from the main structure of the…

应用统计 · 统计学 2020-07-02 Andrea Cappozzo , Francesca Greselin , Thomas Brendan Murphy

Classification is an important task in many fields including biomedical research and machine learning. Traditionally, a classification rule is constructed based a bunch of labeled data. Recently, due to technological innovation and…

统计方法学 · 统计学 2014-06-19 Jing Wang , Eunsik Park , Yuan-chin Ivan Chang

Labeling datasets for supervised object detection is a dull and time-consuming task. Errors can be easily introduced during annotation and overlooked during review, yielding inaccurate benchmarks and performance degradation of deep neural…

计算机视觉与模式识别 · 计算机科学 2023-12-20 Marius Schubert , Tobias Riedlinger , Karsten Kahl , Daniel Kröll , Sebastian Schoenen , Siniša Šegvić , Matthias Rottmann

A framework is introduced for actively and adaptively solving a sequence of machine learning problems, which are changing in bounded manner from one time step to the next. An algorithm is developed that actively queries the labels of the…

机器学习 · 计算机科学 2018-05-31 Yuheng Bu , Jiaxun Lu , Venugopal V. Veeravalli

Event detection (ED) aims at detecting event trigger words in sentences and classifying them into specific event types. In real-world applications, ED typically does not have sufficient labelled data, thus can be formulated as a few-shot…

计算与语言 · 计算机科学 2021-06-01 Shirong Shen , Tongtong Wu , Guilin Qi , Yuan-Fang Li , Gholamreza Haffari , Sheng Bi

Improving performance in multiple domains is a challenging task, and often requires significant amounts of data to train and test models. Active learning techniques provide a promising solution by enabling models to select the most…

机器学习 · 计算机科学 2023-04-14 Anand Gokul Mahalingam , Aayush Shah , Akshay Gulati , Royston Mascarenhas , Rakshitha Panduranga

An active learner is given a class of models, a large set of unlabeled examples, and the ability to interactively query labels of a subset of these examples; the goal of the learner is to learn a model in the class that fits the data well.…

机器学习 · 计算机科学 2015-06-09 Kamalika Chaudhuri , Sham Kakade , Praneeth Netrapalli , Sujay Sanghavi

Label-efficient segmentation aims to perform effective segmentation on input data using only sparse and limited ground-truth labels for training. This topic is widely studied in 3D point cloud segmentation due to the difficulty of…

计算机视觉与模式识别 · 计算机科学 2024-08-30 Liyao Tang , Zhe Chen , Shanshan Zhao , Chaoyue Wang , Dacheng Tao

Language models are exhibiting increasing capability in knowledge utilization and reasoning. However, when applied as agents in embodied environments, they often suffer from misalignment between their intrinsic knowledge and environmental…

计算与语言 · 计算机科学 2024-10-01 Hanlin Wang , Chak Tou Leong , Jian Wang , Wenjie Li

Training high-quality instance segmentation models requires an abundance of labeled images with instance masks and classifications, which is often expensive to procure. Active learning addresses this challenge by striving for optimum…

计算机视觉与模式识别 · 计算机科学 2023-09-29 Ke Yu , Stephen Albro , Giulia DeSalvo , Suraj Kothawade , Abdullah Rashwan , Sasan Tavakkol , Kayhan Batmanghelich , Xiaoqi Yin

Recently, detection of label errors and improvement of label quality in datasets for supervised learning tasks has become an increasingly important goal in both research and industry. The consequences of incorrectly annotated data include…

机器学习 · 计算机科学 2025-08-26 Sarina Penquitt , Tobias Riedlinger , Timo Heller , Markus Reischl , Matthias Rottmann

Active learning (AL) is a prominent technique for reducing the annotation effort required for training machine learning models. Deep learning offers a solution for several essential obstacles to deploying AL in practice but introduces many…

Active learning for object detection is conventionally achieved by applying techniques developed for classification in a way that aggregates individual detections into image-level selection criteria. This is typically coupled with the…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Michael Laielli , Giscard Biamby , Dian Chen , Ritwik Gupta , Adam Loeffler , Phat Dat Nguyen , Ross Luo , Trevor Darrell , Sayna Ebrahimi

Entity Resolution (ER) is a critical task for data integration, yet state-of-the-art supervised deep learning models remain impractical for many real-world applications due to their need for massive, expensive-to-obtain labeled datasets.…

数据库 · 计算机科学 2026-01-29 Dimitrios Karapiperis , Leonidas Akritidis , Panayiotis Bozanis , Vassilios Verykios

Existing deep active learning algorithms achieve impressive sampling efficiency on natural language processing tasks. However, they exhibit several weaknesses in practice, including (a) inability to use uncertainty sampling with black-box…

计算与语言 · 计算机科学 2020-07-22 Haw-Shiuan Chang , Shankar Vembu , Sunil Mohan , Rheeya Uppaal , Andrew McCallum

Modern computing and communication technologies can make data collection procedures very efficient. However, our ability to analyze large data sets and/or to extract information out from them is hard-pressed to keep up with our capacities…

机器学习 · 统计学 2019-01-30 Zhanfeng Wang , Yumi Kwon , Yuan-chin Ivan Chang

Anomaly detection is being regarded as an unsupervised learning task as anomalies stem from adversarial or unlikely events with unknown distributions. However, the predictive performance of purely unsupervised anomaly detection often fails…

机器学习 · 计算机科学 2014-01-27 Nico Goernitz , Marius Micha Kloft , Konrad Rieck , Ulf Brefeld