Exploring Sentiment on Financial Market Through Social Media Stream Analysis

The aim of this chapter is to present the prototype developed in the TrendMiner project in the financial domain. TrendMiner is a Research & Development project co-funded by the European Commission under the 7th Framework Programme contract nr. FP7-ICT-287863. We developed a web-based prototype summarising the media stream in terms of its likely impact on a selected financial asset from economic and political-economic perspectives. The platform is able to gather the events occurring along the social media timeline and to build a tailored visualisation/summarisation of these data with price movements of a given stock or index. The results of the prototype have been evaluated and summarised in this chapter, and three examples are used as proof of concepts for validating the prototype outcomes against the known market behaviours and the existing literature. The TrendMiner financial use case prototype shows its ability to play as another decision support tool besides the consolidated market forecast techniques such as technical and fundamental analysis.