[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,0:00:00.26,0:00:02.65,Default,,0000,0000,0000,,[typewriter keys clack] Dialogue: 0,0:00:07.60,0:00:09.57,Default,,0000,0000,0000,,[Matt Cutts]\NHi, my name is Matt Cutts. Dialogue: 0,0:00:09.57,0:00:11.76,Default,,0000,0000,0000,,I'm an engineer in the quality \Ngroup at Google Dialogue: 0,0:00:11.76,0:00:13.87,Default,,0000,0000,0000,,and I'd like to talk today\Nabout what happens Dialogue: 0,0:00:13.87,0:00:15.53,Default,,0000,0000,0000,,when you do a web search. Dialogue: 0,0:00:15.53,0:00:18.77,Default,,0000,0000,0000,,The first thing to understand is\Nthat when you do a Google search, Dialogue: 0,0:00:18.77,0:00:23.40,Default,,0000,0000,0000,,you aren't actually searching the web, \Nyou're searching Google's index of the web Dialogue: 0,0:00:23.40,0:00:25.95,Default,,0000,0000,0000,,or at least as much of it as we can find. Dialogue: 0,0:00:25.95,0:00:29.84,Default,,0000,0000,0000,,We do this with software programs\Ncalled spiders. Dialogue: 0,0:00:29.84,0:00:34.97,Default,,0000,0000,0000,,Spiders start by fetching a few web pages\Nthen they follow the links on those pages Dialogue: 0,0:00:34.97,0:00:39.26,Default,,0000,0000,0000,,and fetch the pages they point to\Nand follow all the links on those pages Dialogue: 0,0:00:39.26,0:00:41.94,Default,,0000,0000,0000,,and fetch the pages they link to \Nand so on Dialogue: 0,0:00:41.94,0:00:44.52,Default,,0000,0000,0000,,until we've indexed a pretty big chunk\Nof the web, Dialogue: 0,0:00:44.52,0:00:49.11,Default,,0000,0000,0000,,many billions of pages stored\Nacross thousands of machines. Dialogue: 0,0:00:49.11,0:00:52.39,Default,,0000,0000,0000,,Now, suppose I want to know\Nhow fast a cheetah can run. Dialogue: 0,0:00:52.39,0:00:58.64,Default,,0000,0000,0000,,I type in my search, say, \Ncheetah running speed and hit return. Dialogue: 0,0:00:58.64,0:01:02.43,Default,,0000,0000,0000,,Our software searches our index\Nto find every page Dialogue: 0,0:01:02.43,0:01:04.70,Default,,0000,0000,0000,,that includes those search terms. Dialogue: 0,0:01:04.70,0:01:09.16,Default,,0000,0000,0000,,In this case, there are \Nhundreds of thousands of possible results. Dialogue: 0,0:01:09.59,0:01:13.09,Default,,0000,0000,0000,,How does Google decide \Nwhich few documents I really want? Dialogue: 0,0:01:13.09,0:01:16.59,Default,,0000,0000,0000,,By asking questions, \Nmore than 200 of them. Dialogue: 0,0:01:16.59,0:01:20.08,Default,,0000,0000,0000,,Like, how many times does this page\Ncontain your keywords? Dialogue: 0,0:01:20.08,0:01:24.58,Default,,0000,0000,0000,,Do the words appear in the title,\Nin the URL, directly adjacent? Dialogue: 0,0:01:24.58,0:01:27.63,Default,,0000,0000,0000,,Does the page include synonyms\Nfor those words? Dialogue: 0,0:01:27.63,0:01:33.52,Default,,0000,0000,0000,,Is this page from a quality website \Nor is it low quality, even spamming? Dialogue: 0,0:01:33.52,0:01:36.11,Default,,0000,0000,0000,,What is this page's PageRank? Dialogue: 0,0:01:36.11,0:01:40.20,Default,,0000,0000,0000,,That's a formula invented by our founders,\NLarry Page and Sergey Brin, Dialogue: 0,0:01:40.20,0:01:42.30,Default,,0000,0000,0000,,that rates a web page's importance Dialogue: 0,0:01:42.30,0:01:47.07,Default,,0000,0000,0000,,by looking at how many outside links point\Nto it, and how important those links are. Dialogue: 0,0:01:47.07,0:01:49.67,Default,,0000,0000,0000,,Finally, we combine all\Nthose factors together Dialogue: 0,0:01:49.67,0:01:54.64,Default,,0000,0000,0000,,to produce each page's overall score \Nand send you back your search results, Dialogue: 0,0:01:54.64,0:01:57.91,Default,,0000,0000,0000,,about half a second\Nafter you submit your search. Dialogue: 0,0:01:57.91,0:02:01.23,Default,,0000,0000,0000,,At Google, we take our commitment\Nto delivering useful Dialogue: 0,0:02:01.23,0:02:04.15,Default,,0000,0000,0000,,and impartial search results\Nvery seriously. Dialogue: 0,0:02:04.15,0:02:07.30,Default,,0000,0000,0000,,We don't ever accept payment\Nto add a site to our index, Dialogue: 0,0:02:07.30,0:02:10.45,Default,,0000,0000,0000,,update it more often,\Nor improve its ranking. Dialogue: 0,0:02:10.45,0:02:12.54,Default,,0000,0000,0000,,Let's take a look at my search results. Dialogue: 0,0:02:12.54,0:02:17.70,Default,,0000,0000,0000,,Each entry includes a title,\Na URL, and a snippet of text Dialogue: 0,0:02:17.70,0:02:20.59,Default,,0000,0000,0000,,to help me decide whether this page is\Nwhat I'm looking for. Dialogue: 0,0:02:20.59,0:02:23.60,Default,,0000,0000,0000,,I also see links to similar pages, Dialogue: 0,0:02:23.60,0:02:26.27,Default,,0000,0000,0000,,Google's most recent\Nstored version of that page, Dialogue: 0,0:02:26.27,0:02:29.02,Default,,0000,0000,0000,,and related searches \Nthat I might want to try next. Dialogue: 0,0:02:29.02,0:02:35.48,Default,,0000,0000,0000,,And sometimes, along the right \Nand at the top I'll see ads. Dialogue: 0,0:02:35.48,0:02:39.68,Default,,0000,0000,0000,,We take our advertising business\Nvery seriously as well, Dialogue: 0,0:02:39.68,0:02:43.70,Default,,0000,0000,0000,,both our commitment to deliver the best\Npossible audience for advertisers Dialogue: 0,0:02:43.70,0:02:47.18,Default,,0000,0000,0000,,and to strive to only show ads \Nthat you really want to see. Dialogue: 0,0:02:47.18,0:02:51.55,Default,,0000,0000,0000,,We're very careful to distinguish your ads\Nfrom regular search results Dialogue: 0,0:02:51.55,0:02:53.85,Default,,0000,0000,0000,,and we won't show you any ads at all Dialogue: 0,0:02:53.85,0:02:57.11,Default,,0000,0000,0000,,if we can't find any that we think\Nwill help you find the information Dialogue: 0,0:02:57.11,0:02:59.47,Default,,0000,0000,0000,,you're looking for \Nwhich, in this case, Dialogue: 0,0:02:59.47,0:03:03.16,Default,,0000,0000,0000,,the cheetah's top running speed,\Nis more than 60 miles an hour. Dialogue: 0,0:03:03.57,0:03:05.08,Default,,0000,0000,0000,,Thanks for watching, Dialogue: 0,0:03:05.08,0:03:07.82,Default,,0000,0000,0000,,I hope this made Google\Na little bit more understandable.