Results 251 to 260 of about 25,612 (298)

Recommendation by Example in Social Annotation Systems

Lecture Notes in Business Information Processing, 2011
Recommendation by example is common in contemporary Internet applications providing resources similar to a user-selected example. In this paper this task is considered as a function available within a social annotation system offering new ways to model both users and resources. Using three real-world datasets we motivate several conclusions.
Jonathan Gemmell   +2 more
exaly   +2 more sources

Impact on Performance and Process by a Social Annotation System: A Social Reading Experiment

Lecture Notes in Computer Science, 2009
Social annotation systems such as SparTag.us and del.icio.us have been designed to encourage individual reading and marking behaviors that, when shared, accumulate to build collective knowledge spaces. Prior work reported on the experimental design and performance effects observed in a controlled study of SparTag.us.
Gregorio Convertino   +2 more
exaly   +2 more sources

On Kernel Information Propagation for Tag Clustering in Social Annotation Systems

open access: yes, 2011
In social annotation systems, users label digital resources by using tags which are freely chosen textual descriptors. Tags are used to index, annotate and retrieve resource as an additional metadata of resource. Poor retrieval performance remains a major challenge of most social annotation systems resulting from the severe problems of ambiguity ...
Guandong Xu   +4 more
openaire   +3 more sources

Uncle-Share: Annotation-Based Access Control for Cooperative and Social Systems

Lecture Notes in Computer Science, 2008
Shared workspaces and Web 2.0 platforms provide lots of services for sharing various objects. Most current shared workspaces and Web 2.0 platforms provide role-based, coarse-grained access control policies which undermine the utility of them in some cases.
Vassilios Peristeras   +1 more
exaly   +2 more sources

Reading and connecting: using social annotation in online classes

open access: yesInformation and Learning Science, 2020
The COVID-19 pandemic has forced many instructors to rapidly shift to online/distance teaching. With a narrow preparation window, many instructors are at a loss of strategies that are both effective in responding to the crisis and compatible with their ...
Bodong Chen
exaly   +2 more sources

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