First talk on CSN11 - Sentiment analysis
2 October 2011
According to the Condorcet theorem, bigger crowds do better. If each individual independently decides with the same probability, the collective reaches ’the right’ decision fast. If the individuals can connect, the collective behavior can become very rich and complex. See Linux, wikipedia.
But on social networks, there is no collective ‘goal’ besides connecting, recreation. Still, the chatter can predict the box office receipts. And Google search terms shows where people have flu, better than any medical database. It is also shown that happiness and loneliness is contagious; if many people in your network are lonely, you feel more lonely too.