Data and their processing have become an indispensable aspect for our society. Insights drawn from collective data make invaluable contribution to scientific, societal and communal research and business. However, there are increasing worries about privacy issues and data misuse, prompting the emergence of decentralised personal data stores (PDS) like Solid. However, existing PDS frameworks face challenges in ensuring data privacy when performing collective computation to combine data from multiple users. At a glance, Secure Multi-Party Computation (MPC) offers input secrecy protection while performing collective computation without relying on any single party. However, issues emerge when directly applying MPC in the context of PDS, particularly due to key factors like autonomy and decentralisation. In this work, we discuss the essence of this issue, identify the potential solution, and introduce a modular system architecture, Libertas, to integrate MPC with PDS like Solid, without requiring protocol-level changes. We introduce the paradigm shift from an 'omniscient' view to individual-based, user-centric view of trust and security, and discuss the threat model of Libertas. Two realistic use cases for collaborative data processing are used for evaluation, both for technical feasibility and empirical benchmark, highlighting its effectiveness in empowering gig workers and generating differentially private synthetic data. The results of our experiments underscore Libertas' linear scalability and provide valuable insights into compute optimisations, thereby advancing the state-of-the-art in privacy-preserving data processing practices. By offering practical solutions for maintaining both individual autonomy and privacy in collaborative data processing environments, Libertas contributes significantly to the ongoing discourse on privacy protection in data-driven decision-making contexts.

chapter Share on The Semantic Web: A New Form of Web Content that is Meaningful to Computers will Unleash a Revolution of New Possibilities Authors: Tim Berners-Lee Search about this author , James Hendler Search about this author , Ora Lassila Search about this author Authors Info & Claims Linking the World’s Information: Essays on Tim Berners-Lee’s Invention of the World Wide WebSeptember 2023Pages 91–103https://doi.org/10.1145/3591366.3591376Published:05 September 2023Publication History 0citation0DownloadsMetricsTotal Citations0Total Downloads0Last 12 Months0Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access

Social networking forms an important part of online activities of Web users. Web sites such as Facebook, MySpace and Orkut have millions of users using them everyday. However, these sites present two problems. Firstly, these sites form information silos. Information on one site is not usable in the others. Secondly such sites do not allow users much control over how their personal information is disseminated, which results in potential privacy problems.

Governments typically store large amounts of personal information on their citizens, such as a home address, marital status, and occupation, to offer public services. Because governments consist of various governmental agencies, multiple copies of this data often exist. This raises concerns regarding data consistency, privacy, and access control, especially under recent legal frameworks such as GDPR. To solve these problems, and to give citizens true control over their data, we explore an approach using the decentralised Solid ecosystem, which enables citizens to maintain their data in personal data pods. We have applied this approach to two high-impact use cases, where citizen information is stored in personal data pods, and both public and private organisations are selectively granted access. Our findings indicate that Solid allows reshaping the relationship between citizens, their personal data, and the applications they use in the public and private sector. We strongly believe that the insights from this Flemish Solid Pilot can speed up the process for public administrations and private organisations that want to put the users in control of their data.

The 10th Linked Data on the Web workshop (LDOW2017) was held in Perth, Western Australia on April 3, 2017, co-located with the 26th International World Wide Web Conference (WWW2017). In its 10th anniversary edition, the LDOW workshop aims to stimulate discussion and further research into the challenges of publishing, consuming, and integrating structured data on the Web as well as mining knowledge from said data.

The 10th Linked Data on the Web workshop (LDOW2017) was held in Perth, Western Australia on April 3, 2017, co-located with the 26th International World Wide Web Conference (WWW2017). In its 10th anniversary edition, the LDOW workshop aims to stimulate discussion and further research into the challenges of publishing, consuming, and integrating structured data on the Web as well as mining knowledge from said data.

While the Web was designed as a decentralised environment, individual authors still lack the ability to conveniently author and publish documents, and to engage in social interactions with documents of others in a truly decentralised fashion. We present dokieli , a fully decentralised, browser-based authoring and annotation platform with built-in support for social interactions, through which people retain ownership of and sovereignty over their data. The resulting “living” documents are interoperable and independent of dokieli since they follow standards and best practices, such as HTML+RDFa for a fine-grained semantic structure, Linked Data Platform for personal data storage, and Linked Data Notifications for updates. This article describes dokieli’s architecture and implementation, demonstrating advanced document authoring and interaction without a single point of control. Such an environment provides the right technological conditions for independent publication of scientific articles, news, and other works that benefit from diverse voices and open interactions. To experience the described features please open this document in your Web browser under its canonical URI: http://csarven.ca/dokieli-rww .

In this article we describe the Linked Data Notifications (LDN) protocol, which is a W3C Candidate Recommendation. Notifications are sent over the Web for a variety of purposes, for example, by social applications. The information contained within a notification is structured arbitrarily, and typically only usable by the application which generated it in the first place. In the spirit of Linked Data, we propose that notifications should be reusable by multiple authorised applications. Through separating the concepts of senders, receivers and consumers of notifications, and leveraging Linked Data principles of shared vocabularies and URIs, LDN provides a building block for decentralised Web applications. This permits end users more freedom to switch between the online tools they use, as well as generating greater value when notifications from different sources can be used in combination. We situate LDN alongside related initiatives, and discuss additional considerations such as security and abuse prevention measures. We evaluate the protocol's effectiveness by analysing multiple, independent implementations, which pass a suite of formal tests and can be demonstrated interoperating with each other. To experience the described features please open this document in your Web browser under its canonical URI: http://csarven.ca/linked-data-notifications.

The idea is to analyze the knowledge about the real world and then create a standard upon stabled rules and relation types to translate the human (natural) language in a machine and human readable language. For that it need to classify and organize data such as text, pictures, videos or database entries in a system with logical connections between data representing the knowledge shared by people. The Ontology provides a framework for the development of Semantic Web and Artificial Intelligence. Here Medical Knowledge Engineering is the Key. This paper deals with the Medical Knowledge Base to build an ontological structure. In this paper Medical Knowledge about cancer is been combined with the semantic web search engine. Based on the introduction of ontology theory, the author uses Protege 2000 of Stanford, the construction and maintenance tool of ontology, designed and completed Medical Knowledge based on Ontology and all details about cancer, cancer categories, its cause, symptoms etc. The system also learned from this details and new details from the searching process. The improvement and learning process is achieved by comparing the details with some knowledge organization systems. Knowledge acquisition in semantic web is done by RDF explorer. RDF scheme defines relationship and those relationship make the searching in a different level.

The ninth workshop on Linked Data (LDOW2016) on the Web is held in Montreal, Quebec, Canada on April 12, 2016 and co-located with the 25rd International World Wide Web Conference (WWW2016). The Web is developing from a medium for publishing textual documents into a medium for sharing structured data. This trend is fueled on the one hand by the adoption of the Linked Data principles by a growing number of data providers. On the other hand, large numbers of websites have started to semantically mark up the content of their HTML pages and thus also contribute to the wealth of structured data available on the Web. The 9th Workshop on Linked Data on the Web aims to stimulate discussion and further research into the challenges of publishing, consuming, and integrating structured data from the Web as well as mining knowledge from the global Web of Data.

This paper presents Solid, a decentralized platform for social Web applications. In Solid, users’ data is managed independently of the applications that create and consume this data. The user’s data is stored in a Web-accessible personal online datastore (or pod). Solid allows users to have one or more pods from different pod providers, while at the same time enabling users to easily switch between providers. Developers can use Solid protocols, which is based on existing W3C recommendations, for reading, writing and access control of the contents of users’ pods. In Solid architecture, applications can operate over data owned by the user or the user has access to regardless the location of this data on the Web. Users can also control access to their data, and have the option to switch between applications at any time. This is paradigm shift in integrating social features into Web applications. Our new paradigm produces a novel line of social applications. We have used Semantic Web technologies to build Solid prototypes, allowing us to demonstrate its utility through a set of applications for common day-to-day tasks. We also conduct experiments to show the scalability of the Solid prototypes.

Solid is a decentralized platform for social Web applications. In the Solid platform, users' data is managed independently of the applications that create and consume this data. Each user stores their data in a Web-accessible personal online datastore (or pod). Each user can have one or more pods from different pod providers, and can easily switch between providers. Applications access data in users' pods using well defined protocols, and a decentralized authentication and access control mechanism guarantees the privacy of the data. In this decentralized architecture, applications can operate on users' data wherever it is stored. Users control access to their data, and have the option to switch between applications at any time. We will demonstrate the utility of Solid and how it is experienced from the point of view of end users and application developers. For this, we will use a set of Solid servers and multiple Web applications that use these servers. We believe that experience with a concrete platform such as Solid is highly valuable in truly appreciating the power of a decentralized social Web.

This paper presents a brief summary of the eight workshop on Linked Data on the Web. The LDOW 2013 workshop is held in conjunction with the World Wide Web conference 2013. The focus is on data publishing, integration and consumption using RDF and other semantic representation formalisms and technologies.

This paper presents a brief summary of the eight workshop on Linked Data on the Web. The LDOW 2013 workshop is held in conjunction with the World Wide Web conference 2013. The focus is on data publishing, integration and consumption using RDF and other semantic representation formalisms and technologies.

"The responsibility needs to be with the press," Berners-Lee responded firmly. "Journalists need to be data-savvy. He reckoned the future of journalism lies in analyzing data in his speech. In his view, journalists could use software to discover the story lurking in datasets released by governments, local authorities, agencies, or any combination of them – even across national borders. "Data-driven journalism is the future," Berners-Lee insisted( Arthur, 2010).

New Perspectives QuarterlyVolume 31, Issue 3 p. 39-41 AS THE WORLD TURNS We Need a Magna Carta for the Internet TIM BERNERS-LEE, TIM BERNERS-LEE Inventor of the World Wide Web. These comments are adapted from a talk he delivered to the Net Mundial conference in Brazil last week.Search for more papers by this author TIM BERNERS-LEE, TIM BERNERS-LEE Inventor of the World Wide Web. These comments are adapted from a talk he delivered to the Net Mundial conference in Brazil last week.Search for more papers by this author First published: 17 July 2014 https://doi.org/10.1111/npqu.11475AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume31, Issue3July 2014Pages 39-41 RelatedInformation

Personal data ownership and interoperability for decentralized social Web applications are currently two debated topics, especially when taking into consideration the aspects of privacy and access control. To increase data ownership, users should have the freedom to choose where their data resides and who is allowed access to it by decoupling data storage from the application that consumes it. Through CIMBA, we propose a decentralized architecture based on Web standards, which puts users back in control of their own data.

The Hypertext Transfer Protocol (HTTP) is a stateless applicationlevel protocol for distributed, collaborative, hypertext information systems.This document provides an overview of HTTP architecture and its associated terminology, defines the "http" and "https" Uniform Resource Identifier (URI) schemes, defines the HTTP/1.1 message syntax and parsing requirements, and describes related security concerns for implementations.

This paper discusses issues that will affect the future development of the Web, either increasing its power and utility, or alternatively suppressing its development. It argues for the importance of the continued development of the Linked Data Web, and describes the use of linked open data as an important component of that. Second, the paper defends the Web as a read-write medium, and goes on to consider how the read-write Linked Data Web could be achieved.