Search Engine Watch Interesting meta search engines are listed at http://www.searchenginewatch.com/links/article.ph p/2156241
Search Engine Watch • Interesting meta search engines are listed at – http://www.searchenginewatch.com/links/article.ph p/2156241
Social Choice Theory Studies on protocols that help a group of people make collective decisions such as vote
Social Choice Theory • Studies on protocols that help a group of people make collective decisions, such as vote
A Fundamental problem Given a collection of agents(voters) with preferences over different alternatives (allocations, outcomes) how should society evaluate these alternatives and make a decision for all that may be for the will of some voters but against that of others
A Fundamental problem • Given a collection of agents (voters) – with preferences over different alternatives (allocations, outcomes), • how should society evaluate these alternatives and make a decision for all – that may be for the will of some voters but against that of others
Applications Voters elect president from several candidates National polls for economic or political policy of the government The procedure or rule of election The rank of metasearch engine obtained from those of search engines
Applications • Voters elect president from several candidates. • National polls for economic or political policy of the government • The procedure or rule of election • The rank of metasearch engine obtained from those of search engines
Group Descisions How do we make decisions Flip a coin? Dictatorship ? Democracy(Majority rule)?
Group Descisions How do we make decisions • Flip a coin? • Dictatorship? • Democracy (Majority rule)?