# Prediction and Detection, A Note

What is the difference between prediction and detection? For a person from different scientific backgrounds, these may be slightly different meanings. But, we will all agree to the fact that finding the next number in a sequence of numbers say {1,1,2,3,5,8} .. is a prediction problem while detecting if there is a prime in a set of numbers {1,1,2,3,5,8} is a detection problem.

It doesn't stop there, it gets very interesting when we think about any practical way of predicting things. Let's say you have a sequence of numbers and you are trying to predict the next number all you are doing is detecting if there exists a pattern in the series of numbers such that the next number is say 13 (in our previous example). Therefore, detection of a particular pattern becomes prediction. Then how do we differentiate?

I believe the practical way to look at this problem is in the following way. Why are you doing the prediction/detection exercise, is it to understand what happens in the future? or just to see if there are some anomalies in the data which may or may not lead to a particular future outcome? The first one is a prediction problem and the second one a detection problem.

## Posts

### Eigenvalues and poles

### Back Prop Algorithm - What remains constant in derivatives

### Wordpress to Jekyll Conversion

### Phase functions

### Solving Dynamical Systems in Javascript

### Javascript on markdown file

### Walking data

### Walking, it is complicated

### PRC

### Isochrone

### Walking, it's complicated

### Newtons iteration as a map - Part 2

### Newton's iteration as map - Part 1

### ChooseRight

### Mathematica for machine learning - Learning a map

### Prediction and Detection, A Note

### Why we walk ?

### The equations that fall in love!

### Oru cbi diarykkuripp(ഒരു സിബിഐ ഡയറിക്കുറിപ്പ്)

### A way to detect your stress levels!!

### In search of the cause in motor control

### Compressive sensing - the most magical of signal processing.

### Machine Learning using python in 5 lines

### Can we measure blood pressure from radial artery pulse?

subscribe via RSS