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Deep learning (DL) approaches are achieving extraordinary results in a wide range of domains, but often require a massive collection of private data. Hence, methods for training neural networks on the joint data of different data owners,…

Cryptography and Security · Computer Science 2021-10-27 Derian Boer , Stefan Kramer

In recent years, the distinctive advancement of handling huge data promotes the evolution of ubiquitous computing and analysis technologies. With the constantly upward system burden and computational complexity, adaptive coding has been a…

Computer Vision and Pattern Recognition · Computer Science 2018-10-16 Miao Cheng , Ah Chung Tsoi

Current causally consistent data storage algorithms use partial or full replication to ensure data access to clients over a distributed setting. We develop, for the first time, an erasure coding-based algorithm called CausalEC that ensures…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-05-23 Viveck R. Cadambe , Shihang Lyu

In this paper, we propose an algorithm that can be used on top of a wide variety of self-supervised (SSL) approaches to take advantage of hierarchical structures that emerge during training. SSL approaches typically work through some…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Kiran Kokilepersaud , Seulgi Kim , Mohit Prabhushankar , Ghassan AlRegib

The main aspects of XML retrieval are identified by analysing and comparing the following two behaviours: the behaviour of the assessor when judging the relevance of returned document components; and the behaviour of users when interacting…

Information Retrieval · Computer Science 2019-05-01 Jovan Pehcevski , James A. Thom , Anne-Marie Vercoustre

This paper presents a novel approach for the integration of a set of XML Schemas. The proposed approach is specialized for XML, is almost automatic, semantic and "light". As a further, original, peculiarity, it is parametric w.r.t. a…

Databases · Computer Science 2009-11-19 P. De Meo , G. Quattrone , G. Terracina , D. Ursino

This chapter is going to deal with enhancing the efficiency of Biometric by integrating it with Salt Value (randomly generated value of varying length). Normally at an enterprise level or data centres, the servers are maintained with…

Cryptography and Security · Computer Science 2011-09-13 Bhargav. Balakrishnan

This paper describes the problem of securing data by making it disappear after some time limit, making it impossible for it to be recovered by an unauthorized party. This method is in response to the need to keep the data secured and to…

Cryptography and Security · Computer Science 2011-12-13 Prashant Pilla

\emph{Secure Search} is the problem of retrieving from a database table (or any unsorted array) the records matching specified attributes, as in SQL SELECT queries, but where the database and the query are encrypted. Secure search has been…

Cryptography and Security · Computer Science 2017-08-22 Adi Akavia , Dan Feldman , Hayim Shaul

Hashing aims at generating highly compact similarity preserving code words which are well suited for large-scale image retrieval tasks. Most existing hashing methods first encode the images as a vector of hand-crafted features followed by a…

Computer Vision and Pattern Recognition · Computer Science 2016-12-19 Sailesh Conjeti , Abhijit Guha Roy , Amin Katouzian , Nassir Navab

Data comes in many forms. From a shallow perspective, they can be viewed as being either in structured (e.g., as a relation, as key-value pairs) or unstructured (e.g., text, image) formats. So far, machines have been fairly good at…

Computation and Language · Computer Science 2026-03-31 Md Ataur Rahman , Dimitris Sacharidis , Oscar Romero , Sergi Nadal

Although wide-scale integration of cloud services with myriad applications increases quality of services (QoS) for enterprise users, verifying the existence and manipulation of stored cloud information remains an open research problem.…

Cryptography and Security · Computer Science 2024-12-10 Faisal Haque Bappy , Saklain Zaman , Tariqul Islam , Redwan Ahmed Rizvee , Joon S. Park , Kamrul Hasan

Data is the central asset of today's dynamically operating organization and their business. This data is usually stored in database. A major consideration is applied on the security of that data from the unauthorized access and intruders.…

Databases · Computer Science 2013-08-25 Manish Sharma , Atul Chaudhary , Santosh Kumar

We present a scalable "Trustworthy Container Repository" (TCR) infrastructure for the storage of software container images, such as those used by Docker. Using an authenticated data structure based on index-ordered Merkle trees (IOMTs), TCR…

Cryptography and Security · Computer Science 2018-10-18 Franklin Wei , Mahalingam Ramkumar , Somya D Mohanty

Security issues are the most challenging problems in cloud computing environments as an emerging technology. Regarding to this importance, an efficient and reliable user authentication and data protection model has been presented in this…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-08-10 Mohammad Ahmadi , Mostafa Vali , Farez Moghaddam , Aida Hakemi , Kasra Madadipouya

The security of networked control systems (NCS) is receiving increasing attention from both cyber-security and system-theoretic perspectives. The former focuses on classical IT security goals such as confidentiality, integrity, and…

Cryptography and Security · Computer Science 2026-05-18 Philipp Binfet , Janis Adamek , Moritz Schulze Darup

Recommendation Systems (RS) are often used to address the issue of medical doctor referrals. However, these systems require access to patient feedback and medical records, which may not always be available in real-world scenarios. Our…

Machine Learning · Computer Science 2023-08-23 Filipa Valdeira , Stevo Racković , Valeria Danalachi , Qiwei Han , Cláudia Soares

Data is of high quality if it is fit for its intended use. The quality of data is influenced by the underlying data model and its quality. One major quality problem is the heterogeneity of data as quality aspects such as understandability…

Machine Learning · Computer Science 2021-11-15 Viola Wenz , Arno Kesper , Gabriele Taentzer

In this paper, we propose coded Merkle tree (CMT), a novel hash accumulator that offers a constant-cost protection against data availability attacks in blockchains, even if the majority of the network nodes are malicious. A CMT is…

Cryptography and Security · Computer Science 2019-12-23 Mingchao Yu , Saeid Sahraei , Songze Li , Salman Avestimehr , Sreeram Kannan , Pramod Viswanath

Information extraction from copy-heavy documents, characterized by massive volumes of structurally similar content, represents a critical yet understudied challenge in enterprise document processing. We present a systematic framework that…

Computation and Language · Computer Science 2025-10-14 Zilong Wang , Xiaoyu Shen