Early Warning Signs Detection in Competitive Intelligence

In a world of excessive competitiveness in the business environment, the competitive intelligence activities are widely used to monitor the competitors. Many techniques are used like opinion mining, event detection and foresight studies. Foresight allows studying the future and tries to predict and anticipate future actions. We can find diverse concepts and methodologies with numerous challenging research topics: trends, weak signals, wild cards... This paper will focus on weak signal detection in which we try to find the early warning signs in a performed quantitative and automatic way. It will present a literature review regarding the weak signals analysis terminology along with the processes to detect these signals, techniques, methods and approaches used.