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People may be unaware of the privacy risks of uploading an image online. In this paper, we present Graph Privacy Advisor, an image privacy classifier that uses scene information and object cardinality as cues to predict whether an image is…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Dimitrios Stoidis , Andrea Cavallaro

Web browsers are increasingly used as middleware platforms offering a central access point for service provision. Using backend containerization, RESTful APIs, and distributed computing allows for complex systems to be realized that address…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-10-03 Rudolph Pienaar , Ata Turk , Jorge Bernal-Rusiel , Nicolas Rannou , Daniel Haehn , P. Ellen Grant , Orran Krieger

Composed Image Retrieval (CIR) involves retrieving a target image based on a composed query of an image paired with text that specifies modifications or changes to the visual reference. CIR is inherently an instruction-following task, as…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Wenliang Zhong , Weizhi An , Feng Jiang , Hehuan Ma , Yuzhi Guo , Junzhou Huang

Tag-based image retrieval (TBIR) has drawn much attention in recent years due to the explosive amount of digital images and crowdsourcing tags. However, the TBIR applications still suffer from the deficient and inaccurate tags provided by…

Computer Vision and Pattern Recognition · Computer Science 2016-08-09 Yuqing Hou , Zhouchen Lin

Differential privacy (DP) has arisen as the gold standard in protecting an individual's privacy in datasets by adding calibrated noise to each data sample. While the application to categorical data is straightforward, its usability in the…

Cryptography and Security · Computer Science 2022-08-01 Malte Tölle , Ullrich Köthe , Florian André , Benjamin Meder , Sandy Engelhardt

Searching by image is popular yet still challenging due to the extensive interference arose from i) data variations (e.g., background, pose, visual angle, brightness) of real-world captured images and ii) similar images in the query…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Mingqiang Wei , Qian Sun , Haoran Xie , Dong Liang , Fu Lee Wang

In recent years, with the development of cloud computing platforms, privacy-preserving methods for deep learning have become an urgent problem. NeuraCrypt is a private random neural network for privacy-preserving that allows data owners to…

Cryptography and Security · Computer Science 2023-01-13 Zheng Qi , AprilPyone MaungMaung , Hitoshi Kiya

Even though it has extensively been shown that retrieval specific training of deep neural networks is beneficial for nearest neighbor image search quality, most of these models are trained and tested in the domain of landmarks images.…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Konstantin Schall , Kai Uwe Barthel , Nico Hezel , Klaus Jung

Containerization allows bundling applications and their dependencies into a single image. The containerization framework Docker eases the use of this concept and enables sharing images publicly, gaining high momentum. However, it can lead…

Cryptography and Security · Computer Science 2023-07-11 Markus Dahlmanns , Constantin Sander , Robin Decker , Klaus Wehrle

Content based image retrieval, a technique which uses visual contents of image to search images from large scale image databases according to users' interests. This paper provides a comprehensive survey on recent technology used in the area…

Information Retrieval · Computer Science 2014-02-21 D. Johnvictor , G. Selvavinayagam

Shape is one of the main features in content based image retrieval (CBIR). This paper proposes a new shape signature. In this technique, features of each shape are extracted based on four sides of the rectangle that covers the shape. The…

Computer Vision and Pattern Recognition · Computer Science 2013-02-26 Sonya Eini , Abdolah Chalechale

We consider the problem of weakly-private information retrieval (WPIR) when data is encoded by a maximum distance separable code and stored across multiple servers. In WPIR, a user wishes to retrieve a piece of data from a set of servers…

Information Theory · Computer Science 2024-01-18 Asbjørn O. Orvedal , Hsuan-Yin Lin , Eirik Rosnes

The emergence of cloud computing provides a new computing paradigm for users -- massive and complex computing tasks can be outsourced to cloud servers. However, the privacy issues also follow. Fully homomorphic encryption shows great…

Cryptography and Security · Computer Science 2021-04-01 Lizhi Xiong , Wenhao Zhou , Zhihua Xia , Qi Gu , Jian Weng

We present a private information retrieval (PIR) scheme that allows a user to retrieve a single message from an arbitrary number of databases by colluding with other users while hiding the desired message index. This scheme is of particular…

Information Theory · Computer Science 2020-10-29 William Barnhart , Zhi Tian

In a typical formulation of the private information retrieval (PIR) problem, a single user wishes to retrieve one out of $ K$ files from $N$ servers without revealing the demanded file index to any server. This paper formulates an extended…

Information Theory · Computer Science 2024-08-26 Ali Gholami , Kai Wan , Tayyebeh Jahani-Nezhad , Hua Sun , Mingyue Ji , Giuseppe Caire

Striking a balance between protecting data privacy and enabling collaborative computation is a critical challenge for distributed machine learning. While privacy-preserving techniques for federated learning have been extensively developed,…

Cryptography and Security · Computer Science 2025-10-21 Fatemeh Jafarian Dehkordi , Elahe Vedadi , Alireza Feizbakhsh , Yasaman Keshtkarjahromi , Hulya Seferoglu

Content-based multimedia information retrieval is an interesting research area since it allows retrieval based on inherent characteristic of multimedia objects. For example retrieval based on visual characteristics such as colour, shapes or…

Information Retrieval · Computer Science 2012-07-19 Mohammad Nabil Almunawar

Deep neural network (DNN)-based joint source and channel coding is proposed for privacy-aware end-to-end image transmission against multiple eavesdroppers. Both scenarios of colluding and non-colluding eavesdroppers are considered. Unlike…

We consider the problem of cache-aided multi-user private information retrieval (MuPIR). In this problem, $N$ independent files are replicated across $S \geq 2$ non-colluding servers. There are $K$ users, each equipped with cache memory…

Information Theory · Computer Science 2022-12-27 Kanishak Vaidya , B Sundar Rajan

As digital data transmission continues to scale, concerns about privacy grow increasingly urgent - yet privacy remains a socially constructed and ambiguously defined concept, lacking a universally accepted quantitative measure. This work…

Cryptography and Security · Computer Science 2025-08-13 Ikram Messadi , Giulia Cervia , Vincent Itier
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