There seem to be three sorts of missing data: Missing completely at random (MCAR), missing at random (MAR), and missing not at random (MNAR) also known as non-ignorable non-response.
So how do you test if you have a MNAR case?
Statistical methods have shown to have better performance than machine learning/deep learning methods for univariate time series forecasts. Is there research that can prove the same for...
30 March 2020 6,073 5 View
How can I forecast one time-series using another time-series as a proxy? Is Granger causality a good method to use in this case ? What other methods can be used for this task?
25 February 2020 4,566 3 View
Is there a guide/tutorial with associated code that shows how to feed to a neural network the data coming from a graph? By graph, I mean a set of edges and vertices.
25 February 2020 9,940 4 View
According to your experience with time series forecasting, could neural networks and deeep learning techniques give better results in forecasting?
20 February 2020 8,411 9 View
I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...
03 March 2021 4,116 4 View
I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...
03 March 2021 9,692 2 View
Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...
02 March 2021 6,865 1 View
I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.
02 March 2021 7,735 3 View
NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...
01 March 2021 1,189 3 View
I want to differentiate between normal and abnormal movement. For this reason, I am looking forward to this type of dataset.
01 March 2021 9,485 1 View
Hi, I'm looking for public datasets that have CT, X-ray information, or medical records for patients with Covid-19. Does anyone have suggestions?
28 February 2021 4,760 3 View
Hi every body I need to collect datasets from different source to work on recommendation system algorithms, could you advise me how collect data?
27 February 2021 7,063 7 View
I run algorithms like HDBSCAN and MeanShift, and compare them with K-means and GaussianMixture. The first two algorithms do not return cluster labels for some elements in the dataset. My question...
27 February 2021 428 3 View
I have to download dataset from software infrastructure repository (SIR) and I have created account on repository but I am not able to download plz guide.
25 February 2021 3,840 2 View