Concurrency control in groupware systems
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
Groupware: some issues and experiences
Communications of the ACM
Real time groupware as a distributed system: concurrency control and its effect on the interface
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
High-latency, low-bandwidth windowing in the Jupiter collaboration system
Proceedings of the 8th annual ACM symposium on User interface and software technology
ACM Transactions on Computer-Human Interaction (TOCHI)
Operational transformation in real-time group editors: issues, algorithms, and achievements
CSCW '98 Proceedings of the 1998 ACM conference on Computer supported cooperative work
Faster deterministic sorting and searching in linear space
FOCS '96 Proceedings of the 37th Annual Symposium on Foundations of Computer Science
ACM Computing Surveys (CSUR)
Data consistency for P2P collaborative editing
CSCW '06 Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work
Dynamic ordered sets with exponential search trees
Journal of the ACM (JACM)
A Commutative Replicated Data Type for Cooperative Editing
ICDCS '09 Proceedings of the 2009 29th IEEE International Conference on Distributed Computing Systems
Logoot: A Scalable Optimistic Replication Algorithm for Collaborative Editing on P2P Networks
ICDCS '09 Proceedings of the 2009 29th IEEE International Conference on Distributed Computing Systems
Wooki: a P2P wiki-based collaborative writing tool
WISE'07 Proceedings of the 8th international conference on Web information systems engineering
Deep hypertext with embedded revision control implemented in regular expressions
Proceedings of the 6th International Symposium on Wikis and Open Collaboration
Logoot-Undo: Distributed Collaborative Editing System on P2P Networks
IEEE Transactions on Parallel and Distributed Systems
Replicated abstract data types: Building blocks for collaborative applications
Journal of Parallel and Distributed Computing
Evaluating CRDTs for real-time document editing
Proceedings of the 11th ACM symposium on Document engineering
Conflict-free replicated data types
SSS'11 Proceedings of the 13th international conference on Stabilization, safety, and security of distributed systems
A string-wise CRDT for group editing
Proceedings of the 17th ACM international conference on Supporting group work
ACM SIGACT News
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Distributed collaborative editing systems allow users to work distributed in time, space and across organizations. Trending distributed collaborative editors such as Google Docs, Etherpad or Git have grown in popularity over the years. A new kind of distributed editors based on a family of distributed data structure replicated on several sites called Conflict-free Replicated Data Type (CRDT for short) appeared recently. This paper considers a CRDT that represents a distributed sequence of basic elements that can be lines, words or characters (sequence CRDT). The possible operations on this sequence are the insertion and the deletion of elements. Compared to the state of the art, this approach is more decentralized and better scales in terms of the number of participants. However, its space complexity is linear with respect to the total number of inserts and the insertion points in the document. This makes the overall performance of such editors dependent on the editing behaviour of users. This paper proposes and models LSEQ, an adaptive allocation strategy for a sequence CRDT. LSEQ achieves in the average a sub-linear spatial-complexity whatever is the editing behaviour. A series of experiments validates LSEQ showing that it outperforms existing approaches.