search-engine

Is there a better way to find set intersection for Search engine code?

由 ﹥＞﹥吖頭↗ 提交于 2019-12-05 05:18:29
问题 I have been coding up a small search engine and need to find out if there is a faster way to find set intersections. Currently, I am using a Sorted linked list as explained in most search engine algorithms. i.e for every word I have a list of documents sorted in a list and then find the intersection among the lists. The performance profiling of the case is here. Any other ideas for a faster set intersection? 回答1: An efficient way to do it is by "zig-zag": Assume your terms is a list T :

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

由 隐身守侯 提交于 2019-12-05 05:18:14
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/54078071/how-to-set-a-manual-filter-on-google-custom-search-engine-free-version

Why do search engines ignore symbols? [closed]

由 99封情书 提交于 2019-12-05 04:03:30
Searching for symbols is a common in programming, especially when you are new to a language. For example, I had a question about the :: operator in Python, and that is not searchable. People looking for things like this or Object [] (array of Objects), would not find what they want. Why do search engines seem to ignore symbols completely? They are just characters like any others. I can see why it would be hard to extract semantics from symbols compared to words (eg: a search engine can figure out that "find," "finds," "found" are all related, if not the same word), but is it really that hard

Search engines and browser accept-language

由 三世轮回 提交于 2019-12-05 03:03:18
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? Eduardo Molteni 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 for each language, not only for the search engines, but for letting the user change the

Set the Default Search Engine Provider of IE with IOpenServiceManager::InstallService

由 自作多情 提交于 2019-12-05 01:11:37
问题 I would like to set the Default Search Engine Provider of IE with IOpenServiceManager::InstallService: Belong to the link http://www.opensearch.org/Specifications/OpenSearch/1.1#OpenSearch_description_elements. I created the SearchProviderInfo.xml like this: <?xml version="1.0" encoding="UTF-8"?> <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/"> <ShortName>Web Search</ShortName> <Description>Use Example.com to search the Web.</Description> <Tags>example web</Tags> <Contact

Elasticsearch global search different filter on multiple indexes

由 随声附和 提交于 2019-12-05 00:29:09
问题 We have got multiple indices in Elastic Search and would like to search the data across all indices, but we want to apply different filters on different indices. For example: few indices depends on client_id , hence a client_id filter is required we have is_deleted flag in few indexes, hence is_deleted filter is required How should one approach this in Elastic Search? Also, we are using highlight feature, which is supposed to give suggestions to the users. But we would like to ignore certain

badoo.com user search - how can this be done?

由 ﹥＞﹥吖頭↗ 提交于 2019-12-04 23:36:04
问题 Badoo.com has 56.000.000 user profiles. Profiles can be searched by sex, age, hair color, zodiac, education and so on, plus distance from my hometown, online status and date of registration. So far, this seems doable even if it's quite some query on huge tables (56m members...), it can be cached in a general way. The interesting part is that they also have an individual "exclude list" (with every profile you look at, you can say that you don't want to meet this person). Plus, you friends don

what is the best way to build inverted index?

由 ℡╲_俬逩灬. 提交于 2019-12-04 22:43:30
I'm building a small web search engine for searching about 1 million web pages and I want to know What is the best way to build the inverted index ? using the DBMS or What …? from many different views like storage cost, performance, speed of indexing and query? and I don't want to use any open source project for that I want to make my own one! Perhaps you might want to elaborate why you do not wish to use F/OSS tools like Lucene or Sphinx. Most of the current closed-source database managers have some sort of full-text indexing capability. Given its popularity, I'd guess most also have pre

Visual similarity search algorithm

由 怎甘沉沦 提交于 2019-12-04 20:33:13
问题 I'm trying to build a utility like this http://labs.ideeinc.com/multicolr, but I don't know which algorithm they are using, Does anyone know? 回答1: All they are doing is matching histograms. So build a histogram for your images. Normalize the histograms by size of image. A histogram is a vector with as many elements as colors. You don't need 32,24, and maybe not even 16 bits of accuracy and this will just slow you down. For performance reasons, I would map the histograms down to 4, 8, and 10

Site search with CodeIgniter?

由 ぐ巨炮叔叔 提交于 2019-12-04 19:26:00
I need to make a simple site search with pagination in it; could anyone tell me how to do it without affecting the URL structure? Currently I'm using the default CodeIgniter URL structure and I have removed index.php from it. Any suggestions? You could just use a url like /search/search_term/page_number . Set your route like this: $route['search/:any'] = "search/index"; And your controller like this: function index() { $search_term = $this->uri->rsegment(3); $page = ( ! $this->uri->rsegment(4)) ? 1 : $this->uri->rsegment(4); // some VALIDATION and then do your search } Just to update this
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