Questions tagged [interpolation]
Interpolation is a set of methods to construct intermediate points between known points.
15
questions
0
votes
1answer
24 views
empty fields to be filled with previous values
In the above sample data, I have empty fields and now the task is to fill the fields with previous values.
my columns are dates and the values are a number of items present for that particular article ...
0
votes
0answers
13 views
Probability Mass Function of Trigrams of DevSet in Linear Interpolation
I am reading the text on page 12-13, the A linearly interpolated trigram model is derived is defined in terms of the trigram, bigram, and unigram maximum-likelihood estimates
$q(w|u,v)=λ_1 ×q_{ML}(w|...
1
vote
1answer
27 views
Is it possible retrive hourly data from daily weather data?
I'm a beginner, so sorry if my question could be basic. Reading on internet I've found example written in python that makes the reverse of my questions (covert from daily to monthly).
My problem is ...
0
votes
0answers
20 views
What is and how to calculate quartic interpolation?
I was reading the gist on the reward function used in OpenAI Five, but I didn't understand the way they calculate health's reward.
This is what they state: Hero health is scored according to a ...
1
vote
1answer
463 views
How to understand the return values of scipy.interpolate.splrep
Background
Continuation of Spline interpolation - why cube with 2nd derivative
as following Cubic Spline Interpolation in youtube. The example in the youtube is below.
Implemented using scipy....
0
votes
0answers
116 views
B-spline interpolation for image
I am looking B-spline image interpolation implementation using python library.
Like:
bicubic_interpolation = cv2.resize(image, (512, 512), interpolation = cv2.INTER_CUBIC)
0
votes
1answer
50 views
Limits of using a normal distribution in Bayesian inference
When applying a Bayesian inference method such as Gaussian Process Regression (GPR), the assumption of a prior and likelihood function following a normal distribution is inherent. One can use an ...
2
votes
0answers
23 views
Regression of discrete continuous averaged data
If I have data that is continuous and discrete that is the average of a timestep. For example average power usage over the past 1 hour that is continually sampled every hour. How could I turn such ...
4
votes
2answers
30 views
Ordering scrambled 1D data sets by continuity
This is a cute little clustering problem that was probably solved a million times over, but I couldn't find a good reference for it.
I have 20 1D datasets with 400 entries each. In the picture they ...
0
votes
1answer
245 views
Sparse Data Interpolation
I have a price data set where on some days there are up to five data points and some days none at all. For example:
...
1
vote
2answers
215 views
Interpolation in nlp - definition of O term
Reading definition of interpolation below how are the O terms defined? Is this a value that is set manually?
Example
P( Sam | I am ) = count( Sam I am ) / count(I am) = 1 / 2
...
1
vote
0answers
159 views
Does it make sense to interpolate image just before a CNN?
I'm training a CNN with images which have lots of horizontal black lines (due to the nature of the sensor). I'm thinking in removing this artifacts by some kind of preprocessing (interpolation, median ...
2
votes
1answer
142 views
Neural net layer that preserves spatial information
I'm attempting to use a neural network as a kind of interpolator for a high-dimensional function.
We're doing this to circumvent the need for a physical model that calculates this function exactly, ...
0
votes
2answers
316 views
How to mask or crop IDW results
My question is: how can I mask or crop the results, using R, of IDW interpolation to only the area containing the original set of data points?
In the example below, 20 random points are used to ...
3
votes
1answer
32 views
Geometric weighting of temperature
I have a number of weather stations, and I know their positions. I would like to interpolate measurements from them for various other positions as a weighted average of these stations, but of course I ...
