Real-Life Networks Influence Growth of Online Activity

The activity of online communities does not grow in line with the number of users, a new study has found.

The Internet has given rise to its own sorting devices. Among these, tagging consists of assigning user-chosen keywords to a piece of information (such as a digital image) to facilitate searches.

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Lingfei Wu, a researcher at the City University of Hong Kong's Department of Media and Communication, used the tagging behaviour of social media application users to study the growth of online communities' activity.

Wu focused on two social media sites: Flickr and Delicious, in which a faster growth of overall tagging activity than of user population was observed.

This phenomenon is called accelerated growth and confirms that tagging activity is not correlated in a linear way to the number of social media users using tagging.

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In this study, Wu suggests that the accelerating growth pattern originates from the effect of the community size on individual tagging behaviour.

He found that despite the fluctuation in the number of tags and of the population, communities have a heterogeneity (in terms of individual tagging activity) that remains constant over time, but differs across systems.

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Given this time-invariant heterogeneity, the average individual activity will grow as the system expands, leading to the accelerating growth of overall activity.

Previous studies focusing on real-world examples such as cities and biological networks exhibited similar growth pattern. This study shows that there are also accelerating growth patterns in the virtual world.

The findings have been published in the European Physical Journal B.

Source-ANI