Search Results for author: Giacomo Boracchi

Found 14 papers, 7 papers with code

Extracting a functional representation from a dictionary for non-rigid shape matching

no code implementations17 May 2023 Michele Colombo, Giacomo Boracchi, Simone Melzi

Shape matching is a fundamental problem in computer graphics with many applications.

Multi-body Depth and Camera Pose Estimation from Multiple Views

no code implementations ICCV 2023 Andrea Porfiri Dal Cin, Giacomo Boracchi, Luca Magri

Traditional and deep Structure-from-Motion (SfM) methods typically operate under the assumption that the scene is rigid, i. e., the environment is static or consists of a single moving object.

Depth Estimation Pose Estimation

Class Distribution Monitoring for Concept Drift Detection

1 code implementation16 Oct 2022 Diego Stucchi, Luca Frittoli, Giacomo Boracchi

We introduce Class Distribution Monitoring (CDM), an effective concept-drift detection scheme that monitors the class-conditional distributions of a datastream.

Change Detection

Composite Layers for Deep Anomaly Detection on 3D Point Clouds

1 code implementation23 Sep 2022 Alberto Floris, Luca Frittoli, Diego Carrera, Giacomo Boracchi

Moreover, our CompositeNets substantially outperform existing solutions for anomaly detection on point clouds.

Unsupervised Anomaly Detection

Deep Open-Set Recognition for Silicon Wafer Production Monitoring

no code implementations30 Aug 2022 Luca Frittoli, Diego Carrera, Beatrice Rossi, Pasqualina Fragneto, Giacomo Boracchi

Here we address WDM monitoring as an open-set recognition problem to accurately classify WDM in known categories and promptly detect novel patterns.

Open Set Learning

Deep Autoencoders for Anomaly Detection in Textured Images using CW-SSIM

1 code implementation30 Aug 2022 Andrea Bionda, Luca Frittoli, Giacomo Boracchi

Detecting anomalous regions in images is a frequently encountered problem in industrial monitoring.

Anomaly Detection SSIM

Nonparametric and Online Change Detection in Multivariate Datastreams using QuantTree

1 code implementation30 Aug 2022 Luca Frittoli, Diego Carrera, Giacomo Boracchi

Like many change-detection algorithms, QT-EWMA builds a model of the data distribution, in our case a QuantTree histogram, from a stationary training set.

Change Detection Change Point Detection

Perception Visualization: Seeing Through the Eyes of a DNN

1 code implementation21 Apr 2022 Loris Giulivi, Mark James Carman, Giacomo Boracchi

Results of our user study demonstrate that humans can better understand and predict the system's decisions when perception visualizations are available, thus easing the debugging and deployment of deep models as trusted systems.

Adversarial Scratches: Deployable Attacks to CNN Classifiers

1 code implementation20 Apr 2022 Loris Giulivi, Malhar Jere, Loris Rossi, Farinaz Koushanfar, Gabriela Ciocarlie, Briland Hitaj, Giacomo Boracchi

We present Adversarial Scratches: a novel L0 black-box attack, which takes the form of scratches in images, and which possesses much greater deployability than other state-of-the-art attacks.

Synchronization of Group-Labelled Multi-Graphs

no code implementations ICCV 2021 Andrea Porfiri Dal Cin, Luca Magri, Federica Arrigoni, Andrea Fusiello, Giacomo Boracchi

MultiSynch is a general solution that can cope with any linear group and we show to be profitably usable both on synthetic and real problems.

Scratch that! An Evolution-based Adversarial Attack against Neural Networks

1 code implementation5 Dec 2019 Malhar Jere, Loris Rossi, Briland Hitaj, Gabriela Ciocarlie, Giacomo Boracchi, Farinaz Koushanfar

We study black-box adversarial attacks for image classifiers in a constrained threat model, where adversaries can only modify a small fraction of pixels in the form of scratches on an image.

Adversarial Attack Image Captioning +1

QuantTree: Histograms for Change Detection in Multivariate Data Streams

no code implementations ICML 2018 Giacomo Boracchi, Diego Carrera, Cristiano Cervellera, Danilo Macciò

Our experiments show that the proposed histograms are very effective in detecting changes in high dimensional data streams, and that the resulting thresholds can effectively control the false positive rate, even when the number of training samples is relatively small.

Change Detection

Change Detection in Multivariate Datastreams: Likelihood and Detectability Loss

no code implementations16 Oct 2015 Cesare Alippi, Giacomo Boracchi, Diego Carrera, Manuel Roveri

We address the problem of detecting changes in multivariate datastreams, and we investigate the intrinsic difficulty that change-detection methods have to face when the data dimension scales.

Change Detection

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