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Search found 4127 results on 166 pages for 'kd tree'.

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• Expression Tree Binary Expression for an 'In' operation

  - by Adam Driscoll

  I'm trying to build an expression tree (still) but getting further! I need to create a BinaryExpression to perform an 'In' comparison between a Member and a collection of items. Hence, the expression should return true if the member is contained within the items. This obviously does not exist: Expression.MakeBinary(ExpressionType.In, memberExpression, constantExpression); constantExpression is a ConstantExpression of type IEnumerable while memberExpression is a MemberExpression of type T. How would I create such an expression?

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• Binary tree to get minimum element in O(1)

  - by Rudiger

  I'm accessing the minimum element of a binary tree lots of times. What implementations allow me to access the minimum element in constant time, rather than O(log n)?

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• Trie VS Suffix Tree VS Suffix Array

  - by ukrania

  Hello everyone, Which one is the structure that provides best performance results? Trie, Suffix Tree or Suffix Array? There are other equivalent structures? What are good Java implementations of these structures? Thanks for your answers. Best Regards, ukrania

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• IR tree representation of binary operation

  - by drozzy

  I have a simple operation like so: k + 1 What would be a IR tree representation of it? So far I came up with: BINOP(+, MEM(NAME(k)), CONST(1)) but I am not sure if I need the MEM for NAME or not. Any help welcome.

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• Gitweb: How I see source code in tree view with color

  - by Pablo Morales

  I use gitweb. In the tree view I see my source code. But this code is all in black, I like configurated to added highlight

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• How to get Dom tree in GeckoFX

  - by martin.malek

  I started to play with GeckoFX. Unfortunately I didn't found any big documentation for that. I need to get DOM tree for the page. Iterate every element and get it's information. Can someone please help me?

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• is there anyway to clean up old svn directories and files from old source code tree

  - by oo

  i have been sent a directory tree of source code that i want to import into my subversion repository. The issue is that at some point this code was in a different subversion repository. There are a huge number of directories and subdirectories and i basically want to clean up all of the subversion .svn folders before i attempt to import to a new repository and i dont want svn to get confused. is there anyway to clean out a directory structure to remove all svn references?

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• Sorting tree with other column in SQL Server 2008

  - by bodziec

  Hi, I have a table which implements a tree using hierarchyid column Sample data: People \ Girls \1\ Zoey \1\1\ Kate \1\2\ Monica \1\3\ Boys \2\ Mark \2\1\ David \2\2\ This is the order using hierarchyid column as sort column I would like to sort data using hierarchyid but also using name so it would look like this: People \ Boys \2\ David \2\2\ Mark \2\1\ Girls \1\ Kate \1\2\ Monica \1\3\ Zoey \1\1\ Is there a simple solution to do this? Czy da sie to zrobic w jednym zapytaniu sql ?

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• nearest neighbor - k-d tree - wikipedia proof.

  - by user123930

  On the wikipedia entry for k-d trees, an algorithm is presented for doing a nearest neighbor search on a k-d tree. What I don't understand is the explanation of step 3.2. How do you know there isn't a closer point just because the difference between the splitting coordinate of the search point and the current node is greater than the difference between the splitting coordinate of the search point and the current best?

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• How do I present a RichFaces tree with a specific node already expanded

  - by Brummo

  I have a JSF page that displays a RichFaces Treeview, from a TreeNodeImpl model generated in the backing bean. Now I want the page to display initially with a specific node expanded / selected. Preferrably this expansion should be controlled from the backing bean (no javascript wizardry) The whole tree has been generated at the time of initialization of the backing bean Is this possible? I have seen mentioning of TreeState, is that the way to go?

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• Google appengine datastore tree structure

  - by Matthew

  I need to be able to make a tree like structure in the appengine database. I have try to make an object reference itself but have not gotten it to work. class Item(db.Model): children = db.ListProperty(db.ReferenceProperty(Item))

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• Tool to visualize SQL Cascade tree

  - by Jim Geurts

  Is there a tool that will let you visualize a SQL Server 2008 cascade tree? I'm having troubles with items not being able to be deleted and I would like to see the path that SQL takes.

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• How to make tree structured text editor in Qt/Pyqt

  - by serge

  Hi everyone, can you advice what to use for making tree structured text editor? I used QTreeView for this (asked few questions to solve my problems), but it seams it's not suitable for this purpose. Thanks in advance, Serge

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• process tree

  - by Robert

  I'm looking for an easy way to find the process tree (as shown by tools like Process Explorer), in C# or other .Net language. It would also be useful to find the command-line arguments of another process (the StartInfo on System.Diagnostics.Process seems invalid for process other than the current process). I think these things can only be done by invoking the win32 api, but I'd be happy to be proved wrong. Thanks! Robert

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• Tree Widgets on Rails

  - by Joe

  I would like to find some help building a tree interface in Rails. I've tried using jsTree but am having trouble integrating it properly into Rails. Thanks.

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• Why am I getting tree conflicts in subversion?

  - by Greg

  I had a feature branch of my trunk and was merging changes from my trunk into my branch periodically and everything was working fine. Today I went to merge the branch back down into the trunk and any of the files that were added to my trunk after the creation of my branch were flagged as a "tree conflict". Is there any way to avoid this in the future? I don't think these are being properly flagged. Thanks.

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• How to render an object tree with paging?

  - by erikzeta

  I’ll render an object graph on a page looking like this: Category 1 Module 1 Product 1 Product 2 Product 3 Module 2 Product 4 Category 2 ... The Category has an IList<Module and the Module contains an IList<Product Now I need to implement paging on this structure but the problem is that I can’t do Category.Skip(page * pageSize).Take(pageSize) because this will only work on the Category object not the whole object tree. In other words I like to render out when the sum of Categories, Modules and Products is equal to the PageSize /erik

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• (C#) Tree sort, seeking some information.

  - by Sef

  Hello i am currently written a summary of all different kinds of sorting algorithems and their description/function/advantages & disadvantages. Although i have found everything i seek exept for tree sort. I can barely find anything at all about this subject. Some small description & algoritme / short&small program would be very much appreciated. Cheers.

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• Get tree representation from t-sql stored procedure

  - by alex

  Hi, I want to get tree representation answer from my t-sql stored procedure. How can I do it ? Does .NET have a predefined types for working with xml-answers from stored procedures ?

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• Balancing a Binary Tree (AVL)

  - by Gustavo Carreno

  Ok, this is another one in the theory realm for the CS guys around. In the 90's I did fairly well in implementing BST's. The only thing I could bever get my head around was the intricacy of the algorithm to balance a Binary Tree (AVL). Can you guys help me on this?

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• How to create Binary Tree in a image(.jpeg)

  - by abc

  I have data structured in Binary tree format, i want to represent it into an image(*. jpeg) then i need to display that image on web page and all the data will come @ runtime, so image processing should be done @ runtime, how to do this ? This is what my thought solution any other suitable solution are also welcomed, web site is in .NET , i am thinking to produce image using java api then integrate it to .NET wither through WEB-SERVICE call or any other solutions are also welcomed.

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• How-To Convert IQueryable Expression Tree to Lambda

  - by Yoann. B

  Hi, How can i convert a IQueryable Expression Tree to a Expression<Func<T,bool>> Expression. IQueryable<Book> Books; var query = Books.Where(p => p.Author.AuthorId == 5); Expression<Func<Book, bool>> expression = ?????

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• How to create a c/c++ tree script?

  - by Renato

  How to create a script to : compare two trees, in c/c++ in a non recursive mode? also, How to create a script in c/c++ to verify if a tree is binary, in a non recursive mode? thanks in advance.

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• Minimum spanning tree [closed]

  - by Arion

  Iam having difficulty in implementing a minimum spanning tree. So please can someone please post a link to it's source code.

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• copy a tree structure (with identity PK ) in sql

  - by Omu

  I have a table like this Foo(id, parentId) and need to create a copy of a sub-tree (e.g. exec copyTree 35) anybody knows how to do it ?

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