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Contextual ranking models have delivered impressive performance improvements over classical models in the document ranking task. However, these highly over-parameterized models tend to be data-hungry and require large amounts of data even…

信息检索 · 计算机科学 2022-07-08 Abhijit Anand , Jurek Leonhardt , Koustav Rudra , Avishek Anand

Mixup is a widely adopted data augmentation technique known for enhancing the generalization of machine learning models by interpolating between data points. Despite its success and popularity, limited attention has been given to…

机器学习 · 计算机科学 2025-03-05 Chungpa Lee , Jongho Im , Joseph H. T. Kim

This paper leverages the framework of algorithms-with-predictions to design data structures for two fundamental dynamic graph problems: incremental topological ordering and cycle detection. In these problems, the input is a directed graph…

数据结构与算法 · 计算机科学 2024-02-20 Samuel McCauley , Benjamin Moseley , Aidin Niaparast , Shikha Singh

We present a novel data augmentation method to address the challenge of data scarcity in modeling longitudinal patterns in Electronic Health Records (EHR) of patients using natural language processing (NLP) algorithms. The proposed method…

机器学习 · 计算机科学 2024-02-29 Sunwoong Choi , Samuel Kim

We introduce a neural network conformal prediction method for time series that enhances adaptivity in non-stationary environments. Our approach acts as a neural controller designed to achieve desired target coverage, leveraging auxiliary…

机器学习 · 计算机科学 2024-12-25 Ruipu Li , Alexander Rodríguez

The oscillations of the human heart rate are inherently complex and non-linear -- they are best described by mathematical chaos, and they present a challenge when applied to the practical domain of cardiovascular health monitoring in…

机器学习 · 计算机科学 2025-11-03 Berken Utku Demirel , Christian Holz

Restarting a stochastic search process can accelerate its completion by providing an opportunity to take a more favorable path with each reset. This strategy, known as stochastic resetting, is well studied in random processes. Here, we…

混沌动力学 · 物理学 2026-01-09 Julia Cantisán , Alexandre R. Nieto , Jesús M. Seoane

Predicting missing facts for temporal knowledge graphs (TKGs) is a fundamental task, called temporal knowledge graph completion (TKGC). One key challenge in this task is the imbalance in data distribution, where facts are unevenly spread…

机器学习 · 计算机科学 2025-01-03 Jiasheng Zhang , Deqiang Ouyang , Shuang Liang , Jie Shao

The success of deep learning depends heavily on the availability of large datasets, but in robotic manipulation there are many learning problems for which such datasets do not exist. Collecting these datasets is time-consuming and…

机器人学 · 计算机科学 2022-07-21 Peter Mitrano , Dmitry Berenson

Labeling time series data is an expensive task because of domain expertise and dynamic nature of the data. Hence, we often have to deal with limited labeled data settings. Data augmentation techniques have been successfully deployed in…

机器学习 · 计算机科学 2023-04-11 Karan Aggarwal , Jaideep Srivastava

Comparing time series is essential in various tasks such as clustering and classification. While elastic distance measures that allow warping provide a robust quantitative comparison, a qualitative comparison on top of them is missing.…

机器学习 · 计算机科学 2025-06-19 Simiao Lin , Wannes Meert , Pieter Robberechts , Hendrik Blockeel

Human beings are able to master a variety of knowledge and skills with ongoing learning. By contrast, dramatic performance degradation is observed when new tasks are added to an existing neural network model. This phenomenon, termed as…

机器学习 · 计算机科学 2019-10-25 Xin Yao , Tianchi Huang , Chenglei Wu , Rui-Xiao Zhang , Lifeng Sun

With promising empirical performance across a wide range of applications, synthetic data augmentation appears a viable solution to data scarcity and the demands of increasingly data-intensive models. Its effectiveness lies in expanding the…

机器学习 · 计算机科学 2026-02-02 Zixuan Wu , So Won Jeong , Yating Liu , Yeo Jin Jung , Claire Donnat

In many machine learning applications, it is important for the model to provide confidence scores that accurately capture its prediction uncertainty. Although modern learning methods have achieved great success in predictive accuracy,…

机器学习 · 计算机科学 2022-07-12 Linjun Zhang , Zhun Deng , Kenji Kawaguchi , James Zou

Label-scarce, high-dimensional domains such as healthcare present a challenge for modern machine learning techniques. To overcome the difficulties posed by a lack of labeled data, we explore an "order-contrastive" method for self-supervised…

机器学习 · 计算机科学 2022-03-30 Monica Agrawal , Hunter Lang , Michael Offin , Lior Gazit , David Sontag

Data augmentation refers to the process of applying a series of transformations or expansions to original data to generate new samples, thereby increasing the diversity and quantity of the data, effectively improving the performance and…

计算机视觉与模式识别 · 计算机科学 2024-06-11 Hao Zhang , Shuaijie Zhang , Renbin Zou

Supervised training of neural networks requires large, diverse and well annotated data sets. In the medical field, this is often difficult to achieve due to constraints in time, expert knowledge and prevalence of an event. Artificial data…

图像与视频处理 · 电气工程与系统科学 2021-10-01 Andreas Wachter , Werner Nahm

Continuous efforts are being made to advance anomaly detection in various manufacturing processes to increase the productivity and safety of industrial sites. Deep learning replaced rule-based methods and recently emerged as a promising…

机器学习 · 计算机科学 2024-06-28 Kukjin Choi , Jihun Yi , Jisoo Mok , Sungroh Yoon

Time-series representation learning can extract representations from data with temporal dynamics and sparse labels. When labeled data are sparse but unlabeled data are abundant, contrastive learning, i.e., a framework to learn a latent…

机器学习 · 计算机科学 2023-03-03 Heejeong Choi , Pilsung Kang

In this work, we propose data augmentation via pairwise mixup across subgroups to improve group fairness. Many real-world applications of machine learning systems exhibit biases across certain groups due to under-representation or training…

机器学习 · 统计学 2023-09-14 Madeline Navarro , Camille Little , Genevera I. Allen , Santiago Segarra