Weak Demand Signal Identification Based on a Dynamic Topic Model:Taking BYD's New Energy Vehicles as an Example
[Research purpose]The intensification of competition and the demand for innovation have made product research and develop-ment increasingly complex,and enterprises urgently need to explore and move forward in a dynamically changing market.Therefore,how to effectively identify weak demand signals has become an urgent and most challenging problem.[Research method]This study intro-duces and integrates evaluation indicators such as novelty,occurrence rate,support rate,and click-through rate from the customer side,draws on the signal combination diagram developed by Kim and Lee as a signal classification system,and then proposes a method for iden-tifying weak demand signals based on a dynamic topic model.An empirical analysis is carried out using customer reviews of the automo-tive company BYD's new energy vehicles on the website Auto Home as the data source,and the results are compared from two dimensions of the quantity and quality of weak demand identification with the ones obtained by the keyword analysis.[Research conclusion]The re-sults show that the method proposed in this study is effective and feasible and can accurately identify weak demand signals with higher sen-sitivity.
weak demand signalweak demand signal recognitioncomment textsignal combination diagramDTM modelnew energy vehicles
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