timtk·11 ปีที่แล้ว·discussInsightful read. Your mention of text mining in "Future Look" reminds me of Levitt's findings regarding sales correlations with keywords in real estate listings.http://www.nber.org/papers/w11053.pdfhttp://freakonomics.com/books/freakonomics/chapter-excerpts/...
http://www.nber.org/papers/w11053.pdf
http://freakonomics.com/books/freakonomics/chapter-excerpts/...