These services add voice recognition and results focused on meaning--but Microsoft's fresh-looking Tafiti engine may well make the biggest splash.
By Dennis O'Reilly
...Google's relevance rankings have served Web searchers well, but search is more than a numbers game. Technology developed by Hakia attempts to extract meaning from phrases on the Web and in search queries. The service suggests that you search in phrases or questions, and those phrases are highlighted in the results to make them easier to browse. Hakia's SemanticRank algorithm is designed to consider the credibility of sources and to enable the engine to learn how to make better choices in the future. ...
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