Abstract: A system is described which allows a user to define a relational tag. The relational tag describes how a first item is related to a second item within an identified qualifying context. For instance, the relational tag may state that the first item is ranked higher than or lower than the second item. When utilized by many users, the system forms a graph of interconnected items. The system can perform comparative analysis within this graph. For instance, based on the relational tags, the system can determine which item is the top-ranking item or bottom-ranking item within the graph.

Abstract: Tools and techniques for converging terms within a collaborative tagging environment are described herein. Methods for converging divergent contributions to the collaborative tagging environment may include receiving respective contributions from users within the environment. The methods may identify at least some of the contributions as divergent, and enable the users to converge the divergent contributions.

Abstract: Collaborative structured tagging enables a community of users to define different types of tags for online content. The diverse tag types provide a non-flat or dimensional tagging data structure that supports navigation and search for content, as well as comparison of the content. In one implementation, the collaborative structured tagging is employed in an item encyclopedia that offers community-authored information on various items in one or more electronic catalogs. In this context, the collaborative structured tagging facilitates comprehensive cross-product comparison and dimensional product navigation.

Abstract: A system is described which allows a user to define a relational tag. The relational tag describes how a first item is related to a second item within an identified qualifying context. For instance, the relational tag may state that the first item is ranked higher than or lower than the second item. When utilized by many users, the system forms a graph of interconnected items. The system can perform comparative analysis within this graph. For instance, based on the relational tags, the system can determine which item is the top-ranking item or bottom-ranking item within the graph.

Abstract: Tools and techniques for converging terms within a collaborative tagging environment are described herein. Methods for converging divergent contributions to the collaborative tagging environment may include receiving respective contributions from users within the environment. The methods may identify at least some of the contributions as divergent, and enable the users to converge the divergent contributions.

Abstract: A system is described which allows a user to define a relational tag. The relational tag describes how a first item is related to a second item within an identified qualifying context. For instance, the relational tag may state that the first item is ranked higher than or lower than the second item. When utilized by many users, the system forms a graph of interconnected items. The system can perform comparative analysis within this graph. For instance, based on the relational tags, the system can determine which item is the top-ranking item or bottom-ranking item within the graph.