helios. results

reports, deliverables, research notes, scientific publications and much more about the technical development of the helios platform

helios envisions the development of a highly modular platform with a robust core guaranteeing decentralised, privacy, blockchain, monetisation, 3D, VR/AR, and other features where developers can create their own social media apps or develop new modules for extended capabilities. We encourage developers to create most functionality to modules and leave only a minimal set to the app itself. Thus, other developers can benefit from the effort and participate to maintain the modules. As an analogy to such crowdsourcing is Thingiverse in which different designers share their 3D models, or WordPress where different types of users get the best of the ecosystem for the creation of websites, templates, API’s, etc.

helios has reached a main milestone with the development of the Alpha Release of the platform ensuring the interoperability and joint functionality among the core and different modules and components. This version extends the MVP and includes new functionalities such as content detection and improved user profiling.


Conference Paper: “Native accessible interaction for all: Accessible born social media”

Estella Oncins V International Congress on Communication and Youth Online April 1-3, 2020 Full article Paper available for download in November 2020 Abstract: Last decade the Council of Europe signed and ratified the United Nations Convention of Rights of Persons with Disability CRPD (2006)[1]. This derived in three pieces of legislation: Web Accessibility Directive (2016)[2] […]

Conference Paper: “Social networks, challenges, concerns and youth. HELIOS use cases”

David Hernandez, Andreu Belsunces, Kevin Koidl V International Congress on Communication and Youth Online April 1-3, 2020 Full article Paper available for download in November 2020 Abstract: This paper aims to show the creative process developed during the conceptualization work of a new social network model developed in the context of the European HELIOS project. […]

Conference Paper: “The principle of transparency in youth targeted content on social media”

Carolina Goberna V International Congress on Communication and Youth Online April 1-3, 2020 Full article Paper available for download in November 2020 Abstract: Nowadays, teenagers and young people communicate through digital devices that produce instant outcomes. One of the most characteristic aspects about the relationship of youth, between 15 and 24 years old, through different […]

Scientific Paper: “LinkAUC: Unsupervised Evaluation of Multiple Network Node Ranks Using Link Prediction”

Krassanakis E., Papadopoulos S., Kompatsiaris Y. (2020) LinkAUC: Unsupervised Evaluation of Multiple Network Node Ranks Using Link Prediction. In: Cherifi H., Gaito S., Mendes J., Moro E., Rocha L. (eds) Complex Networks and Their Applications VIII.International Conference on Complex Networks and Their Applications - COMPLEX NETWORKS 2019. Studies in Computational Intelligence, vol 881. Springer, Cham […]

Scientific Paper: “Networked Collaborative Recommendation Architecture”

Ville Ollikainen Top 10 Best Papers at IBC2019 IBC2019 Conference - RAI, Amsterdam, Netherlands 13 Sep 2019 ? 17 Sep 2019 Full article Abstract: For any individual user, the amount of available content is exploding. Recommendations have become an integral part of digital business, helping people to find content and services, while at the same […]

Scientific Paper: ”A multilayer social overlay for new generation DOSNs”

Barbara Guidi, Andrea Michienzi, Kevin Koidl, and Kristina Kapanova. 2019. A multilayer social overlay for new generation DOSNs. In Proceedings of the 5th EAI International Conference on Smart Objects and Technologies for Social Good (GoodTechs ’19). ACM, New York, NY, USA, 114-119. DOI: https://doi.org/10.1145/3342428.3343034 Abstract Online Social Networking platforms (OSNs) have become part of the real life […]

Scientific Paper: “Boosted seed oversampling for local community ranking”

Krasanakis, E., Schinas, E., Papadopoulos, S., Kompatsiaris, Y., & Symeonidis, A. (2019). Boosted seed oversampling for local community ranking. Information Processing & Management, 102053 – https://doi.org/10.1016/j.ipm.2019.06.002 Abstract Local community detection is an emerging topic in network analysis that aims to detect well-connected communities encompassing sets of priory known seed nodes. In this work, we explore […]


Find in this section the list of Public Deliverables and Reports developed within HELIOS Project

D1.1 – Data Management Plan, initial version Download This document is the initial version of HELIOS Data Management Plan, including a description of the technical and organisational measures that will be implemented to safeguard the rights and freedoms of the research participants, possible consequences of profiling, and how their fundamental rights will be safeguarded, and how the data subjects will be informed of any possible existence of the profiling or data breaches. The Data Management Plan will provide a better understanding of the data produced, establish mechanism on how shared data will be exchanged and stored and secured with the collaboration tools of the project and what data will be publicly available and how. Not all research data will be openly accessible: Specifically, no such data that can be considered personal data will be published until this initial version is updated with further instructions. This document addresses how the data published by HELIOS will follow FAIR principles – findable, accessible, interoperable and re-usable – including what data the project will generate, whether and how it will be made accessible for verification and re-use, and how it will be curated and preserved. This document will be updated during the project as D1.2 in M18 and D1.3 in M28.
D1.2 – Data Management Plan, M18 update Not available until M18
D1.3 – Data Management Plan, final versión Not available until M28
D1.4 – Final Legal Report Not available until M36
D1.8 – Participating Open Research Data Pilot Not available until M18
D2.8 – User-Centric Design Requirements Gathering, final versiónNot available until M26 
D2.9 – Technical Requirements GatheringNot available until M26 
D2.10 – Recruitment and Informed Consent Procedures, H2.1, H2.2DownloadEthics is a vital part of research for all projects funded by the European Union. The HELIOS project will carry out research involving work with human beings and will generate data; therefore, ethical procedures need to be followed. Despite the project will avoid interaction with vulnerable groups, it is important to go over all the procedures when interacting with users, to assess the best way to recruit and involve them into the project activities from an ethical responsible perspective, and also to protect their data. As already mentioned, no vulnerable groups will be involved in the project, still many languages are spoken in Europe, and to guarantee full understanding of all the ethical requirements information, translation into the language of the end user will be guaranteed in different steps. These are some of the profiles that will be involved in the project for testing purposes: Teachers and students, Artists, Scientists, and Journalism professionals.
D3.2 – Final system architecture and API specificationNot available until M18 
D3.4 – Core Release VersionNot available until M24 
D4.1 – Heterogeneous Social Network Graph topology and lifecycleDownloadThis deliverable presents the description of the Heterogeneous Social Graph topology and the lifecycle of the topology. The document describes what the Heterogeneous Social Network Graph is and the local knowledge of the network each node has. The document introduces the local structure of each user, namely Contextual Ego Network, which is a multi-layer network where each layer represents a specific context of the use, and – is implemented by exploiting the ego network social model. The document provides an overview of how a user is identified in the HELIOS social network by introducing the main characteristics of the user profile, and how trust affects the lifecycle of the Contextual Ego Network structure of each user.
D4.2 – Time-dependent Social GraphDownloadThis deliverable presents the modelling of the Heterogeneous Social Graph using a temporal network and describes what the Heterogeneous Social Network Graph is and the importance to model it is using a graph formalism that includes the temporal complexity. Furthermore, introduces the Contextual Ego Network as the local view of each user of the whole Social Overlay. Thanks to the Contextual Ego Network, each user has to maintain information that is local instead of the whole graph, and the Social Overlay is maintained by the means of the union of each local view. The Contextual Ego Network is a multi-layer network where each layer represents a specific context of the user, and each layer is modelled by exploiting the ego network social model. The document moreover provides an overview of some possible studies that can be carried out on each layer, with a special focus on the usage of Graph Neural Networks.
D4.3 – Mining the social graphNot available until M18 
D4.4 – Define rewarding methodologies Not available until M14 
D4.5 – Computational TrustNot available until M22 
D4.6 – Neuro-based servicesNot available until M24 
D4.7 – Organic social graph creationNot available until M24 
D4.8 – Development of content-aware social graphsNot available until M18 
D5.1 – Augmented Reality interface for shared spacesNot available until M34 
D5.2 – 3D authoring tools for V-space creationNot available until M34 
D5.3 – Group communication services v1Not available until M24 
D5.4 – Group communication services v2 and demonstratorsNot available until M34 
D5.5 – Prosumer production and premium content service v1Not available until M24 
D5.6 – Prosumer production and premium content service v2 and demonstratorNot available until M34 
D6.1 – Integration strategy and planningDownload

This deliverable presents the first and preliminary version of the HELIOS project integration plan.

The HELIOS consortium will provide new and updated versions of the HELIOS integration activities in the further documents belonging to the WP6. The document describes the first and preliminary integration approach that will be followed during the project as well as the code version control repository, the staging infrastructure and the tools for supporting the continuous development, integration and operation of the HELIOS Social Network. In the first project phase, the consortium will rely on a private GitLab repository managed by ATOS. At M18 the consortium plans to move the HELIOS code to a public GitHub code repository. Finally, a short description of the main components belonging to the HELIOS architecture together with the preliminary calendar for their integration is also described in the document.

D6.3 – Beta ReleaseNot available until M18 
D6.4 – Candidate ReleaseNot available until M28 
D6.5 – HELIOS System OperationsNot available until M34 
D7.1 – Validation operation planDownloadThis deliverable is part of the work performed in WP7- Piloting, Validation and Evaluation. More precisely, it describes the coordination procedures conducted within task 7.1 – Coordination through the first months of the project (M4-M8, so far). The main objective of this task is to coordinate all activities within HELIOS related to the validation of the services, features, technological developments generated in WP3, WP4 and WP5 and integrated into WP6. With this purpose, it has been defined a structure of procedures and resources to coordinate HELIOS partners and external actors (i.e. entities and communities of users) that will be involved in the preparation, execution and validation activities to be performed during the project.
D7.2 – Lab test reportNot available until M34 
D7.3 – Pilot validation reportNot available until M34 
D8.1 – Dissemination PlanDownloadThis deliverable aims at being a comprehensive plan outlining the project’s communication and dissemination strategy within the WP8 with the main objective of positioning the project among the Research and Innovation community and key stakeholders defined and maximise its impact during the 36 months of the project duration. The document provides the main principles of the dissemination and communication strategy to be adopted by all partners, with the definition of the stakeholders’ group regarding their potential relationship with HELIOS.
D8.3 – Dissemination Mid-Term ReportNot available until M18 
D8.5 – Dissemination Final ReportNot available until M36 
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This project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement N° 825585