knn

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Is there any K-NN implementation that uses Johnson Lindenstrauss Lemma?

I wonde开发者_StackOverflow社区r if there is a K-NN implementation uses this method. Python or Ruby will be more than great.[详细]

2023-04-05 21:48 分类：问答
How to calculate distance when we have sparse dataset in K nearest neighbour

I am implementing K nearest neighbour algorithm for a very sparse data. I want to calculate the distance between a test instance and each sample in the training set, but I am confused.[详细]

2023-04-05 13:45 分类：问答
What's the difference between ANN, SVM and KNN classifiers?

I am doing remote sensing image classification. I am using the object-oriented method: first I segmented the image to different regions, then I extract t开发者_运维问答he features from regions such as[详细]

2023-04-02 11:00 分类：问答
about K-Nearest Neighbor and OpenCV in C#

I am wondering if there is a built-in function in OpenCV that performs KNN ? If it exists how can I deal with i开发者_运维百科t .. I searched but I didn\'t find any useful thing[详细]

2023-03-27 05:24 分类：问答
Naive bayesian classifier - multiple decisions

I need to know whether the Naive bayesian classifier can be used to generate multiple decisions. I couldn\'t[详细]

2023-03-25 06:46 分类：问答
What data do I need to implement k nearest neighbor?

I currently have a reddit-clone type website. I\'m trying to recommend posts based on the posts that my users have previously liked.[详细]

2023-03-09 16:52 分类：问答
k-nearest neighbour classifier but using a distribution?

I am building a classifier for some 2D data. I have some training data for which I know the classes and have plotted these on a graph to see the clustering.[详细]

2023-02-26 15:55 分类：问答
K nearest neighbour in python [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-02-23 00:04 分类：问答
Computing sparse pairwise distance matrix in R

I have a NxM matrix and I want to compute the NxN matrix of Euclidean distances between the M points.In my problem, N is about 100,000.As I plan to use this matrix for a k-nearest neighbor algorithm,[详细]

2023-02-22 14:12 分类：问答
Using Nearest Neighbour Algorithm for image pattern recognition

So I want to be able to recognise patterns in images (such as a number 4), I have been reading about different algorithms and I would really like to use the Nearest Neighbour algorithm, it looks simpl[详细]

2022-12-28 16:53 分类：问答