Density‐based clustering

RJGB Campello, P Kröger, J Sander… - … Reviews: Data Mining …, 2020 - Wiley Online Library
Clustering refers to the task of identifying groups or clusters in a data set. In density‐based
clustering, a cluster is a set of data objects spread in the data space over a contiguous …

Obfuscated gradients give a false sense of security: Circumventing defenses to adversarial examples

A Athalye, N Carlini, D Wagner - International conference on …, 2018 - proceedings.mlr.press
We identify obfuscated gradients, a kind of gradient masking, as a phenomenon that leads to
a false sense of security in defenses against adversarial examples. While defenses that …

Characterizing adversarial subspaces using local intrinsic dimensionality

X Ma, B Li, Y Wang, SM Erfani, S Wijewickrema… - arXiv preprint arXiv …, 2018 - arxiv.org
Deep Neural Networks (DNNs) have recently been shown to be vulnerable against
adversarial examples, which are carefully crafted instances that can mislead DNNs to make …

Dimensionality-driven learning with noisy labels

X Ma, Y Wang, ME Houle, S Zhou… - International …, 2018 - proceedings.mlr.press
Datasets with significant proportions of noisy (incorrect) class labels present challenges for
training accurate Deep Neural Networks (DNNs). We propose a new perspective for …

Fedcorr: Multi-stage federated learning for label noise correction

J Xu, Z Chen, TQS Quek… - Proceedings of the IEEE …, 2022 - openaccess.thecvf.com
Federated learning (FL) is a privacy-preserving distributed learning paradigm that enables
clients to jointly train a global model. In real-world FL implementations, client data could …

Intrinsic dimension of data representations in deep neural networks

A Ansuini, A Laio, JH Macke… - Advances in Neural …, 2019 - proceedings.neurips.cc
Deep neural networks progressively transform their inputs across multiple processing layers.
What are the geometrical properties of the representations learned by these networks? Here …

Approximate nearest neighbor search on high dimensional data—experiments, analyses, and improvement

W Li, Y Zhang, Y Sun, W Wang, M Li… - … on Knowledge and …, 2019 - ieeexplore.ieee.org
Nearest neighbor search is a fundamental and essential operation in applications from
many domains, such as databases, machine learning, multimedia, and computer vision …

ANN-Benchmarks: A benchmarking tool for approximate nearest neighbor algorithms

M Aumüller, E Bernhardsson, A Faithfull - Information Systems, 2020 - Elsevier
This paper describes ANN-Benchmarks, a tool for evaluating the performance of in-memory
approximate nearest neighbor algorithms. It provides a standard interface for measuring the …

Detecting images generated by deep diffusion models using their local intrinsic dimensionality

P Lorenz, RL Durall, J Keuper - Proceedings of the IEEE …, 2023 - openaccess.thecvf.com
Diffusion models recently have been successfully applied for the visual synthesis of
strikingly realistic appearing images. This raises strong concerns about their potential for …

Isotropy in the contextual embedding space: Clusters and manifolds

X Cai, J Huang, Y Bian, K Church - International conference on …, 2021 - openreview.net
The geometric properties of contextual embedding spaces for deep language models such
as BERT and ERNIE, have attracted considerable attention in recent years. Investigations on …