nearest-neighbor

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Alternative to distance metric in nearest neighbor algorithm?

I came across an implementation of the nearest neighbor algorithm for finding matches between certain keypoints in two similar images. The keypoints were generated by the SIFT algorithm. The points ar[详细]

2023-01-05 10:29 分类：问答
Using ruby to find similar recipes based on ingredients they contain

I have a collection of recipes, each h开发者_开发问答aving a number of ingredients.This information is stored in a join table.Give a recipe, I\'d like to find recipes similar to it based on ingredient[详细]

2022-12-26 21:39 分类：问答
How can I extend this SQL query to find the k nearest neighbors?

I have a database full of two-dimensional data - points on a map. Each record has a field of the geometry type. What I need to be able to do is pass a point to a stored procedure which returns the k n[详细]

2022-12-25 04:53 分类：问答
Efficient method for finding KNN of all nodes in a KD-Tree

I\'m currently attempting to find K Nearest Neighbor of all nodes of a balanced KD-Tree (with K=2). My开发者_运维问答 implementation is a variation of the code from the Wikipedia article and it\'s de[详细]

2022-12-24 14:23 分类：问答
Millions of 3D points: How to find the 10 of them closest to a given point?

A point in 3-d is defined by (x,y,z). Distance d between a开发者_JAVA技巧ny two points (X,Y,Z) and (x,y,z) is d= Sqrt[(X-x)^2 + (Y-y)^2 + (Z-z)^2].[详细]

2022-12-24 03:27 分类：问答
How to model coarse grained geolocation to correct market

Use case example: Client A comes to request sales information, enters their zip code开发者_如何学编程 and are directed to Representative X.[详细]

2022-12-16 04:45 分类：问答
Is k-d tree efficient for kNN search. k nearest neighbors search

I have to implement k nearest neighbors search for 10 dimensional data in kd-开发者_如何学JAVAtree.[详细]

2022-12-15 18:40 分类：问答
How To Rotate Image By Nearest Neighbor Interpolation Using Matlab

My Plain Code without interpolation: im1 = imread(\'lena.jpg\');imshow(im1); [m,n,p]=size(im1); thet = rand(1);[详细]

2022-12-12 13:41 分类：问答
is KNN valuable if most ratings are a 5 / passive filtering recommendations

I\'ve been looking at building a \'people who like x, also like y\' type recommendation开发者_JS百科 system, and was looking at using Vogoo, but after looking through their code it seems there is a lo[详细]

2022-12-11 01:18 分类：问答
How does space partitioning algorithm for finding nearest neighbors work?

For finding the nearest neighbor, Space Partitioning is one of t开发者_运维问答he algorithms. How does it work?[详细]

2022-12-10 22:22 分类：问答