# Questions tagged [algorithms]

An unambiguous list of computational steps involved in finding a solution to a class of problems.

735 questions
1answer
359 views

### Procedure of PRESS statistic

It is not very clear for me the calculation steps of PRESS statistic. What I have found: 1)we set aside the $j_{th}$ observation $⟨x_j,y_j⟩$ from the training set(It means, that we just remove the ...
1answer
2k views

3answers
678 views

### Algorithm to identify similar frames in a video

Looking at the frames of a video, we can see that many frames are almost identical. Is there any algorithm to identify these frames, so I can delete them all but one?
1answer
453 views

### Determine correct statistical algorithm for mixed-type data

I have a dataset consisting of ~20000 lines and 8 columns. It is a mixture of binary and float data, but one binary variable is the important one and I want to create a model to predict the other ...
1answer
26 views

### Metric for determining how different a given string is from elements in a larger body of text?

I am trying to remove names from a large body of text to reduce the noise in my dataset. I have tried several approaches: Python's nltk.pos_tag function and a more ...
2answers
440 views

### K-mean++ initialization algorithm alternative

I got this question as an exercise, and I frankly don't know where to begin: Consider the deterministic variant of the k−means++ algorithm where the set of initial centroids are selected in the ...
1answer
117 views