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Eng."],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The increasing centralization of the Web raises serious concerns regarding privacy, security, and user autonomy. In response, there has been a renewed interest in the development of secure personal information management systems and a movement towards decentralization. Decentralized personal online data stores (pods) represent a revolutionary example within this movement, built on the W3C\u2019s existing guidelines \u2013 an approach exemplified by initiatives such as \u00a0(<jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"https:\/\/solidproject.org\">https:\/\/solidproject.org<\/jats:ext-link>). In the Solid paradigm, individuals store their personal data in pods and have absolute discretion when choosing to grant access to different users and applications. A barrier to the adoption of the pod approach is the predominant reliance on centralized indexes for search functionality in current Web and Web-based systems. This paper introduces the  framework, which is designed to facilitate this new paradigm of large-scale searches within personal data stores while respecting the individual pod owners\u2019 data access governance. The current ESPRESSO prototype integrates access control within pod indexes to enhance distributed keyword-based search. ESPRESSO\u2019s unique contribution not only enhances search capabilities on the decentralized Web but also paves the way for future explorations in decentralized search technologies.<\/jats:p>","DOI":"10.1007\/s41019-024-00263-w","type":"journal-article","created":{"date-parts":[[2024,11,26]],"date-time":"2024-11-26T01:58:19Z","timestamp":1732586299000},"page":"431-448","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["ESPRESSO: A Framework to Empower Search on the Decentralized Web"],"prefix":"10.1007","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9048-7873","authenticated-orcid":false,"given":"Mohamed","family":"Ragab","sequence":"first","affiliation":[]},{"given":"Yury","family":"Savateev","sequence":"additional","affiliation":[]},{"given":"Helen","family":"Oliver","sequence":"additional","affiliation":[]},{"given":"Thanassis","family":"Tiropanis","sequence":"additional","affiliation":[]},{"given":"Alexandra","family":"Poulovassilis","sequence":"additional","affiliation":[]},{"given":"Adriane","family":"Chapman","sequence":"additional","affiliation":[]},{"given":"George","family":"Roussos","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2024,11,26]]},"reference":[{"issue":"5","key":"263_CR1","doi-asserted-by":"publisher","first-page":"32","DOI":"10.1145\/2670528","volume":"58","author":"S Abiteboul","year":"2015","unstructured":"Abiteboul S, Andr\u00e9 B, Kaplan D (2015) Managing your digital life. 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