Knowledge fixation and accretion: Longitudinal analysis of a social question-answering site

Article English OPEN
Matthews, P. (2014)

Purpose – The aim of this work was to investigate longitudinal features of an established social question-answering site to study how question-answer resources and other community features change over time.\ud \ud Design/methodology/approach – Statistical analysis and visualisation was performed on the full data dump from the StackOverflow social question-answering site for programmers.\ud \ud Findings – The timing of answers is as strong a predictor of acceptance - a proxy for user satisfaction - as the structural features of provided answers sometimes associated with quality. While many questions and answer exchanges are short-lived, there is a small yet interesting subset of questions where new answers receive community approval and which may end up being ranked more highly than early answers.\ud \ud Research limitations/implications – As a large-scale data oriented research study, this work says little about user motivations to find and contribute new knowledge to old questions or about the impact of the resource on the consumer. This will require complementary studies using qualitative and evaluative methods.\ud \ud Practical implications – While content contribution to social question-asking is largely undertaken within a very short time frame, content consumption is usually over far longer periods. Methods and incentives by which content can be updated and maintained need to be considered. This work should be of interest to knowledge exchange community designers and managers. \ud \ud Originality/value – Few studies have looked at temporal patterns in social question-answering and how time and the moderation and voting systems employed may shape resource quality
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