Tag navigation

Abstract

The amount of information available on the world wide web keeps growing at an exponential pace. Social tagging is a feature of various online social networks to organize information elements by letting people label these with free-form text, called tags. The graph created by this process is often called a folksonomy and comprises the association between people, tags and documents. Tagging is now used to organize web pages, pictures, videos, music, books, academic publications, etc.The current ways of navigating folksonomies are limited. In most web portals, "search" is the main feature which uses tags. When browsing tags, most systems give a few related tags to the clicked tag, none enables the user to get related tags to multiple clicked tags at the same time. A popular tag cloud displays links to the most popular tags in the folksonomy with a font size that depends on their popularity. Popular tag clouds and related tags can enable tag-based navigation.Enabling navigation through related tag clouds to multiple clicked tags in an efficient and scalable manner is a hard problem. We propose a bayesian approach to the problem of generating related tag clouds for navigation by using social network information and probabilistic models of people's tagging behaviors. We propose two new models to generate tag clouds based on popularity, tag cooccurrence and social relationships. The models are implemented in a prototype application to navigate empirical data from "last.fm", an online social network for music. We give an evaluation plan to compare the models regarding searchability through user evaluations.

Petac

“…This research covers a broad range of topics such as using tag clouds for information retrieval or summaries (Bercovitz et al 2009; Kuo et al 2007), as navigation interfaces (Gwizdka & Bakelaar 2009;Mesnage & Carman 2009), or in studies investigating the effectiveness of various layouts or tag-clustering algorithms (Berlocher et al 2008; Rivadeneira et al 2007). Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page.…”

Social Tagging as a Knowledge Organization and Resource Discovery Tool

“…After a user clicks on a tag within the cloud, the tagging system takes the tag and adds it to the system algorithm as a regular query. The system matches the tags with related tags in its collections and displays a list of the results in a new page with another tag cloud with tags related to the previous search (Mesnage & Carman, 2009). Typically, users are given a choice to filter out the tag cloud to include or delete selected tags.…”

Are tag clouds useful for navigation? A network-theoretic analysis

“…While recent research has studied navigation in social tagging systems from user interface (Mesnage and Carman, 2009;Rivadeneira et al, 2007;Sinclair and Cardew-Hall, 2008) and network-theoretic (Neubauer and Obermayer, 2009) perspectives, the unique focus of this paper is the intersection of these issues. With that focus, we want to answer questions such as: how do user interface constraints of tag clouds affect the navigability of tagging systems?…”