search-engine | 易学教程

How does pageranking algorithm deal with webpage without outbound links?

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问题 I am learning about the PageRanking algorithm so sorry for some newbie questions. I understand that the PR value is calculated for each page by the summation of incoming links to itself. Now I am bothered by a statement which stated that "the PageRank values sum to one " at wikipedia. As the example shown at wikipedia, if every page has a outbound link, then the summation of whole probabilities from each page should be one. However, if a page does not have any outbound link such as page A at

How to Google for --depend?

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问题 The latest makefiles we've received from a third party vendor contain rules with --depend on the end of build rules, so I thought I would look it up on Google, but try as I might, I can't persuade it to display any pages with exactly the characters --depend I've tried surrounding it with quotes "--depend": I've tried the Advanced Search: I've tried backslashes "\-\-depend" in the (vain) hope that there is some sort of unpublished regular expression search available. Am I missing something

Replace all occurences of string in multiple source files in Intellij

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问题 Is it possible? 2 options is preferable : 1) with variable 2) other string. Thanks. 回答1: Yes, it's possible. The command is named "Replace in path" (Ctrl-Shift-R in my keyboard shortcut preferences). You could have found it yourself by typing Ctrl-shift-A, and typing "replace": this will list all the commands containing the word "replace" in their name. 来源： https://stackoverflow.com/questions/21086759/replace-all-occurences-of-string-in-multiple-source-files-in-intellij

How to set a manual filter on Google Custom Search Engine (free version)

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问题 How can I set a manual filter on Google Custom Search Engine (not from CSE panel)? For example, to open the link in a new tab I'm using this code: <gcse:searchresults-only linktarget="_blank"></gcse:searchresults-only> Now I want to set the "safe mode", and also set the results per page (to show 10 results, for instance). To be clearer, I want to allow users to change those filters from my website, that's is why I'm trying to add them manually! Thanks. 来源： https://stackoverflow.com/questions

multiple search value in php and mysql

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I'm trying to create a search engine in php and mysql. The search engine should be able to accept multiple value and display all possible result, i checked this thread php/mysql search for multiple values , but i need to use global variable at the place where LIKE '$search%' is. This is how my sql statement looks like, SELECT name FROM product WHERE name LIKE '%$search% the variable search is declared correctly,now everything works fine when i search specifically, such as Gold chain will show Gold chain.But when i search another name together such Gold Chain Shirt,where shirt is another

Search engines and browser accept-language

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问题 I'm building a web portal where language content will generally depend on the "accept-language" sent by the browser. The same content-URI will thus serve different content to different users depending on their browser setting. I'm very curious to know how this will affect search indexing. Does Google index using all languages, and is it handled well? 回答1: They don't send accept-language, so the site will be indexed in the default language that you select. I recommend you to have different URL

can HBase , MapReduce and HDFS can work on a single machine having Hadoop installed and running on it?

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I am working on a search engine design, which is to be run on cloud. We have just started, and have not much idea about Hdoop. Can anyone tell if HBase , MapReduce and HDFS can work on a single machine having Hdoop installed and running on it ? Yes you can. You can even create a Virtual Machine and run it on there on a single "computer" (which is what I have :) ). The key is to simply install Hadoop in " Pseudo Distributed Mode " which is even described in the Hadoop Quickstart . If you use the Cloudera distribution they have even created the configs needed for that in an RPM. Look here for

Display table view when searchBar (from searchController) begin edited Swift

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问题 I already seen this question : How to show tableview when user taps searchbar swift It's the same issue as me but when I use the answer it can't work for me. When I click on the button search, only the searchbar appears on the search controller then if I type something the tableView doesn't appear at all. I use Swift 3. The best example for what I want to do is the Instagram search function. When user tap the searchbar a tableView comes as a subView. I show you my current code of my

How to perform a wildcard search in Lucene

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问题 I know that Lucene has extensive support for wildcard searches and I know you can search for things like: Stackover* (which will return Stackoverflow ) That said, my users aren't interested in learning a query syntax. Can Lucene perform this type of wildcard search using an out-of-box Analyzer? Or should I append "*" to every search query? 回答1: Doing this with string manipulations is tricky to get right, especially since the QueryParser supports boosting, phrases, etc. You could use a

Drupal search engine does not index my custom nodes!

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Somebody has posted an hour ago or so a question that was about the drupal search engine and was about like this: I know drupal should index anything that is returned by node_view() but this is not happening for my custom content. Also: are there better alternatives to Drupal built-in functionality? As the question has been removed while I was answering, and didn't want to throw away 20 minutes of my life for nothing ;) I thought to re-create the question a second time. Hope this is fine by the rules of SO! :) The Drupal search engine is probably not the most celebrated feature of Drupal, but