matching

Partial subtree-matching algorithm

岁酱吖の 提交于 2019-12-03 21:22:44
I searched the forums but I couldn't figure it out if the other similar questions are necessarily related to this one. What I'm trying to do is match a subtree to a tree of objects. I know there are pattern matching algorithms based on suffix trees or automata, but I'm not sure whether they apply here. I am trying to match the subtree given by the red nodes in the picture against the bigger tree, regardless of the overall structure of the tree or whether the red nodes have children or not. The reason straightforward pattern matching does not work is that no ordering of the nodes (post/preorder

Java generics - implementing higher order functions like map

只谈情不闲聊 提交于 2019-12-03 13:44:40
I decided to write some common Higher Order Functions in Java (map, filter, reduce, etc.) that are type safe via generics, and I'm having problems with wildcards matching in one particular function. Just to be complete, the functor interface is this: /** * The interface containing the method used to map a sequence into another. * @param <S> The type of the elements in the source sequence. * @param <R> The type of the elements in the destination sequence. */ public interface Transformation<S, R> { /** * The method that will be used in map. * @param sourceObject An element from the source

Matching fuzzy strings

时间秒杀一切 提交于 2019-12-03 12:49:32
I have two tables that I need to merge together in PostgreSQL, on the common variable "company name." Unfortunately many of the company names don't match exactly (i.e. MICROSOFT in one table, MICROSFT in the other). I've tried removing common words from both columns such as "corporation" or "inc" or "ltd" in order to try to standardize names across both tables, but I'm having trouble thinking of additional strategies. Any ideas? Thanks. Also, if necessary I can do this in R. Have you considered the fuzzystrmatch module? You can use soundex , difference , levenshtein , metaphone and dmetaphone

Meeting scheduling algorithm with Overlapping Time Slots

女生的网名这么多〃 提交于 2019-12-03 09:56:14
问题 I want to do something similar to Appointment scheduling algorithm (N people with N free-busy slots, constraint-satisfaction). using Hopcroft-Karp Algorithm. But my additional requirement is that my time intervals are overlapping. Eg. The time slots can be 10am-11am or 10.15am to 11.15am. So if I choose 10am to 11 am slot, I don't want to choose 10.15 am to 11.15 am slot. Is it possible to achieve this without hitting the performance badly? 回答1: You could use a flow algorithm similar to what

Site matching query does not exist. Lookup parameters were {'pk': 3}

匿名 (未验证) 提交于 2019-12-03 08:41:19
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Environment : Request Method : GET Django Version : 1.5 Python Version : 2.7 . 3 Installed Applications : ( 'django.contrib.auth' , 'django.contrib.contenttypes' , 'django.contrib.sessions' , 'django.contrib.sites' , 'django.contrib.messages' , 'django.contrib.staticfiles' , 'allauth' , 'allauth.account' , 'allauth.socialaccount' , 'allauth.socialaccount.providers.facebook' , 'allauth.socialaccount.providers.google' , 'allauth.socialaccount.providers.linkedin' , 'django.contrib.admin' , 'django.contrib.admindocs' ) Installed

Directed maximum weighted bipartite matching allowing sharing of start/end vertices

谁说我不能喝 提交于 2019-12-03 07:48:21
问题 Let G (U u V, E) be a weighted directed bipartite graph (i.e. U and V are the two sets of nodes of the bipartite graph and E contains directed weighted edges from U to V or from V to U). Here is an example: In this case: U = {A,B,C} V = {D,E,F} E = {(A->E,7), (B->D,1), (C->E,3), (F->A,9)} Definition: DirectionalMatching (I made up this term just to make things clearer): set of directed edges that may share the start or end vertices. That is, if U->V and U'->V' both belong to a

ORA-28040: No matching authentication protocol exception

匿名 (未验证) 提交于 2019-12-03 02:49:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am trying to connect my grails project to Oracle databse( Oracle 12c ) in windows(8) system. However, whenever i run my application i get following exception : Caused by : org . apache . commons . dbcp . SQLNestedException : Cannot create PoolableConnectionFactory ( ORA - 28040 : No matching authentication protocol ) Caused by : java . sql . SQLException : ORA - 28040 : No matching authentication protocol According to internet suggestion i also tried editing my *.ora file but it is not working. I added following snippet in sqlnet

Regular Expression Matching -Java

匿名 (未验证) 提交于 2019-12-03 02:34:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am taking input from a file in following format: (int1,int2) (int3,int4) Now I want to read int1, int2, int3 and int4 in my Java code. How can I do it with regular expression matching in java. Thankx. 回答1: String[] ints = "(2,3) (4,5)".split("\\D+"); System.out.println(Arrays.asList(ints)); // prints [, 2, 3, 4, 5] To avoid empty values: String[] ints = "(2,3) (4,5)".replaceAll("^\\D*(.*)\\D*$", "$1").split("\\D+"); System.out.println(Arrays.asList(ints)); // prints [2, 3, 4, 5] 回答2: Pattern p = Pattern.compile("\\((\\d+),(\\d+)\\)\\s+\\((

Selenium “Unable to find a matching set of capabilities” despite driver being in /usr/local/bin

匿名 (未验证) 提交于 2019-12-03 02:23:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm trying to follow a tutorial about Selenium, http://selenium-python.readthedocs.io/getting-started.html . I've downloaded the latest version of geckodriver and copied it to /usr/local/bin . However, when I try from selenium import webdriver driver = webdriver.Firefox() I get the following error message: Traceback (most recent call last): File "/Users/kurtpeek/Documents/Scratch/selenium_getting_started.py", line 4, in <module> driver = webdriver.Firefox() File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages

Django error - matching query does not exist

匿名 (未验证) 提交于 2019-12-03 02:06:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I finally released my project to the production level and suddenly I have some issues I never had to deal with in the development phase. When the users posts some actions, I sometimes get the following error. Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 111, in get_response response = callback(request, *callback_args, **callback_kwargs) File "home/ubuntu/server/opineer/comments/views.py", line 103, in comment_expand comment = Comment.objects.get(pk=comment_id) File "/usr