In TRIPLE, WP5 is devoted to the integration of Innovative Services in the GoTriple platform. The work has been organised in the following 6 tasks: ● T5.1: Third-party applications integration ● T5.2: Recommender system ● T5.3: Trust building system ● T5.4: Visualisation ● T5.5: Open annotation tool ● T5.6. Discovery system The structure of this document, which describes the work done in WP5 after September 2021, reflects the organisation of the WP, with a dedicated chapter for each of its tasks. Chapter 2 presents T5.1, which is devoted to the identification of innovative services to integrate in GoTriple, beyond those developed by the project partners in the other tasks of WP5. After the successful integration of the Crowdfunding platform, in the current period the work has been concentrated on integrating two other services identified in the previous phases of the project: an extendible mechanism to export documents’ metadata for easily importing them in bookmarking reference management apps and services (e.g. Zotero, Mendeley or EndNote) and the OPERAS Metrics service. In Chapter 3, the work in T5.2 on the Recommender system is described, with new functionalities and services that this platform exposes to GoTriple. In particular, new algorithms for suggesting documents, projects, and authors have been developed, together with the personalised recommendations service, which allows registered users to automatically receive in their personal page dedicated documents suggestions, according to their previous history of interactions with GoTriple. Chapter 4 presents how the Trust Building System (TBS) has been expanded within T5.3, with the implementations of the Public groups, and the definition of new strategies to ease the onboarding of new users in the TBS platform. The significant improvements in T5.4 for the interactive Visualization system are described in Chapter 5, spanning from the enhancements on the User Interface side to the development of new features, together with refinements to the existing ones. Chapter 6 discusses the progress of the Open Annotation Tool Pundit, which is part of T5.5. The chapter highlights the achievements and ongoing efforts, including Pundit's successful integration into the EOSC Marketplace, which can be attributed to its participation in an EOSC Digital Innovation Hub (DIH) pilot. Additionally, the team is currently working on incorporating new features into the web annotation tool during the remaining months of the project. Finally, Chapter 7 describes the work done in T5.6 on the Discovery System, which is the back-end component that powers the advanced visualisations of T5.4. Several goals have been accomplished here, both on the infrastructure side (the finalisation of the transition to the Custom Services pipeline, improvements to stability and scalability) and on the functional side, in particular with the development of the author and project visualisations, the former already integrated in GoTriple, while the latter will be included soon.

The TRIPLE project (https://project.gotriple.eu/), which is financed under the Horizon 2020 framework (https://cordis.europa.eu/project/id/863420), under Grant Agreement No. 863420, with approx. 5.6 million Euros for a duration of 42 months (2019-2023). The content of this deliverable reflects only TRIPLE's view and the Commission is not responsible for any use that may be made of the information it contains.