A metasearch engine (or search aggregator) is an online Information retrieval tool that uses the data of a web search engine to produce its own results. Metasearch engines take input from a user and immediately query search engines for results. Sufficient data is gathered, ranked, and presented to the users.
- How can I use different search engines to merge the results and get better results?
§ Aggregation by position
§ Aggregation by value
- CombMax, CombMin, CombSUM