G. Gkotsis, K. Stepanyan, C. Pedrinaci, J. Domingue, and M. Liakata. It's all in the Content: State of the art Best Answer Prediction based on Discretisation of Shallow Linguistic Features. In Proceedings of the 2014 ACM Conference on Web Science, WebSci '14, pages 202-210, New York, NY, USA, 2014. ACM.
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ACQUA - Automatic Community-based Question Answering (on StackExchange Network)
About
ACQUA is looking at the discretised version of linguistic features of each candidate answer and predicts which answer is going to be marked as "accepted". Past knowledge such as user reputation or future knowledge, such as score of the answers is not taken into account. Hence, ACQUA can predict which answer is going to get accepted in real-time settings with minimum resources.
ACQUA makes use of the StackExchange API, fetches all answers and analyses them. The ACQUA web service is then highlighting one answer indicating it as the "accepted".
Installation
After you install the script, you need to grant ACQUA with permission to use the stackexchange API with your SX account. ACQUA requires authentication to overcome the SX API limitations; it only logs anonymously the question-pages served.
You can find more (screenshots, methodology, third-party support, contact information) on the product website.
