Decentralized Online Social Network (DOSN)

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A Decentralized Online Social Network (DOSN) is an Online Social Network that is a decentralized network.

AKA: Decentralized Online Social Networking System, Decentralized Online Social Networking Service.
Context:
- It is usually a Distributed Social Network.
- It can require Decentralized Online Social Network Server.
- It can implement a Decentralized Online Social Networking Protocol.
Example(s):
Counter-Example(s):
See: Decentralized Web, Centralized Network, Decentralized Data Hosting System, Centralized Computing System, Peer-to-Peer Storage System, Super-Peer-based DOSN, Peer-to-Peer Virtual Community Network.

References

2017

(Muller et al., 2017) ⇒ Andre Muller, Andre Ludwig, and Bogdan Franczyk (2017). "Data Security In Decentralized Cloud Systems – System Comparison, Requirements Analysis And Organizational Levels". In: SpringerOpen - Journal of Cloud Computing.
- QUOTE: The results of the comparison are summarized in Fig. 1. The solutions of the investigated concepts of PeerSoN (Buchegger et al., 2009), Priv.io (Zhang and Mislove, 2013), Safebook (Cutillo et al., 2011), and SuperNova (Sharma & Datta, 2012) are based on a peer-to-peer approach. The concepts PrPl (Seong et al., 2010), SlopPy (Gambs & Lolive, 2012), and Vis-à-Vis (Shakimov et al., 2011) are based on distributed applications and on server solutions as well as cloud solutions that are self-managed by the user. As a common ground of these concepts, all parties are expected to run and manage their own cloud system. The eight already mentioned systems will now be explained shortly and examined with regard to their currently unsolved problems.

**Figure 1:** Results of the degree of the fulfillment of the system comparison characteristics.

2013

(Zhang & Mislove, 2013) ⇒ Liang Zhang, and Alan Mislove (2013) "Building Confederated Web-based Services with Priv.Io". In: Proceedings of the First ACM Conference on Online Social Networks.

2012a

(Gambs & Lolive, 2012) ⇒ ⇒ Sebastien Gambs, and Julien Lolive (2012). "SlopPy: Slope One with Privacy". In: Data Privacy Management and Autonomous Spontaneous Security (pp. 104-117). Springer, Berlin, Heidelberg.

2012b

(Jahid et al., 2012) ⇒ Sonia Jahid, Shirin Nilizadeh, Prateek Mittal, Nikita Borisov, and Apu Kapadia (2012, March). "DECENT: A decentralized architecture for enforcing privacy in online social networks". In: Workshop Proceedings of the Tenth Annual IEEE International Conference on Pervasive Computing and Communications (PerCom 2012).
- QUOTE: We propose DECENT, an architecture for enforcing access control in a decentralized OSN. Our focus is on providing data confidentiality, integrity, and availability in the presence of malicious nodes in a distributed setting. Our architecture is also able to protect the privacy of user relationships. DECENT is based around a flexible object-oriented design (OOD) that supports the main functionality of OSNs and captures the complex multi-principal interactions that are common in social networks. The confidentiality and integrity of data are protected by a cryptographic mechanism so that they can be stored in untrusted nodes in a distributed hash table (DHT). The standard DHT mechanisms are extended to ensure availability despite malicious attempts to erase or overwrite stored data.

2012c

(Narayanan et al., 2012) ⇒ Arvind Narayanan, Vincent Toubiana, Solon Barocas, Helen Nissenbaum, and Dan Boneh (2012). "A Critical Look at Decentralized Personal Data Architectures". In: arXiv:1202.4503.
- QUOTE: Decentralized social networking has been a largely parallel, sometimes overlapping line of development with similar motivations. We subdivide such social networks into federated (ecosystem of interoperable implementations in the client-server model) and distributed (peer-to-peer). The term distributed social networking is frequently but incorrectly used to describe all decentralized social networks.

2012c

(Moreira, 2012) ⇒ Olga Moreira (2012)."On the State of Art of Decentralized Online Social Networks".
- QUOTE: The search for alternatives to centralization of personal data began in the late 1990s, however, web community and academic computer scientists dismissed social networks until 2007 (Narayanan et al., 2012). Open-source communities launched several social network in last few years based on decentralization principles, some examples are Diaspora, Friendica, OpenSocial, Noserub, Buddycloud, etc. aimed to attract non-technical users. Academic research has focused on decentralized online social network (DOSN) mainly because it presents more challenges. Some Academic research DOSN prototypes examples are: PeerSoN (Buchegger et al., 2009) , Vis-a-Vis (Shakimov et al., 2011), SafeBook (Cutillo et al., 2011), PrPl (Seong et al., 2010), SuperNova (Sharma & Datta, 2012) and DECENT (Jahid et al., 2012).

2012d

(Sharma & Datta, 2012) ⇒ Rajesh Sharma, and Anwitaman Datta (2012, January). "SuperNova: Super-peers Based Architecture for Decentralized Online Social Networks". In: Proceedings of the 2012 fourth International Conference on communication systems and networks (COMSNETS 2012).
- QUOTE: We propose a new architecture for realizing decentralized online social networks (DOSNs) which is a super-peers based network of volunteer agents (hence the name, SuperNova). We have arrived at such a super-peer based design guided by our past experiences in implementing and experimenting with the PeerSoN DOSN (Buchegger et al., 2009) and other decentralized social information systems (Datta, 2010) relying on other ‘flat’ architectures, as well as based on insights obtained from some theoretical works (Rzadca et al., 2010). The proposed SuperNova architecture allows the system to self-organize by leveraging on heterogeneity, which may arise due to various reasons including altruistic behavior of participants as well as various incentive mechanisms.

2011a

(Cutillo et al., 2011) ⇒ Leucio Antonio Cutillo, Refik Molva and Melek Onen (2011, June). Safebook: A distributed privacy preserving Online Social Network. In: Proceedings of the 12th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WOWMOM 2011)

2011b

(Shakimov et al., 2011) ⇒ Amre Shakimov, Harold Lim, Ramon Caceres, Landon P. Cox, Kevin A. Li, Dongtao Liu, and Alexander Varshavsky (2011, January). "Vis-a-vis: Privacy-preserving online social networking via virtual individual servers". In: Proceedings of the Third International Conference on Communication Systems and Networks (COMSNETS 2011).

2010a

(Datta, 2010) ⇒ Anwitaman Datta (2010). “SoJa: Collaborative Reference Management Using A Decentralized Social Information System". In: Proceedings of the 6th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom, 2010).

2010b

(Seong et al., 2010) ⇒ Seok-Won Seong, Jiwon Seo, Matthew Nasielski, Debangsu Sengupta, Sudheendra Hangal, Seng Keat Teh, Ruven Chu, Ben Dodson, and Monica S. Lam (2010, June). "PrPl: a decentralized social networking infrastructure". In: Proceedings of the 1st ACM Workshop on Mobile Cloud Computing & Services: Social Networks and Beyond (MCS 2010).

2010c

(Rzadca et al., 2010) ⇒ Krzysztof Rzadca, Anwitaman Datta, and Sonja Buchegger (2010). "Replica Placement in P2P Storage: Complexity and Game Theoretic Analyses". In: Proceedings of the 2010 International Conference on Distributed Computing Systems (ICDCS 2010).

2009

(Buchegger et al., 2009) ⇒ Sonja Buchegger, Doris Schioberg, Le-Hung Vu, and Anwitaman Datta (2009, March)."PeerSoN: P2P social networking: early experiences and insights". In: Proceedings of the Second ACM EuroSys Workshop on Social Network Systems (SNS 2009).

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