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-4
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0
answers
83
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How to approach time series forecasting with data which is estimated? [closed]
I’m working on a monthly forecasting problem at CCU (product–market) level and would really value expert feedback on whether my approach so far is sound, and how best to proceed with modeling.
What I’...
2
votes
2
answers
104
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Optimal data structure for time-series analysis
My data is large CPI dataset containing headline CPI as well as various subindexes (i.e. food, non-food, services). Initial data stored in Excel spreadsheet in wide format like this:
name
2002Q1
...
1
vote
0
answers
41
views
Multivariate Time Series Modelling with GRU
we have 300 stores in a retail demand forecasting problem and we have 1 years of daily demand data, for some stores shorter. Using GRU to also model the extreme cases but the problem is how to feed ...
0
votes
0
answers
91
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How to Plot Predictions vs. Actual Values in Time Series Forecasting with 4D NumPy Arrays?
I'm struggling to visualize the performance of the timeLLM model on the Ehtt1 dataset.
https://github.com/KimMeen/Time-LLM/blob/main/run_main.py
The forecast function returns predictions and actuals ...
1
vote
1
answer
152
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Multiple Multivariate Time series forecasting with LSTM along with some categorical features
Currently I am working on a timeseries data which looks like this
click to see data
The data consists of 5 companies, 15 products (each company has 3-5 products) and 6 different regions
Goal To build ...
1
vote
0
answers
38
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How to check if a variable varies across timestamps or across samples
Let's assume we have some time-series data where every person (sample) has measurements for 2 variables (Var1, Var2) for three timepoints. Following is a dummy representation of the data.
Is there a ...
1
vote
0
answers
233
views
How to export a temporal forecasting transformer model as an onnx model?
I have a TFT model that is performing a timeseries forecasting using the get_stallion dataset. See the link below for reference:
https://pytorch-forecasting.readthedocs.io/en/stable/tutorials/stallion....
-1
votes
1
answer
462
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Random Cut Forest on Multiple Timeseries anomaly detection
I am trying to find anomaly on multiple sensor data using random cut forest, how can i use random cut forest for multi times series data.
i have created a model for one time series data and that works ...
0
votes
0
answers
332
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Visualizing Structural Vector Autoregression (SVAR) in Python gives error shape mismatch
I am helping a friend with their thesis in statistics and we need to make a SVAR. I have the following output from VAR which I want to use as an input to SVAR (Not sure if that is the correct input) ...
0
votes
2
answers
118
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How can I report a VARX model (MTS class) with modelsummary (or other LaTeX table packages) in R?
Consider an example of a VARX model estimate in R, using MTS package:
library(tidyverse)
library(MTS)
library(modelsummary)
library(vars)
library(stats)
set.seed(10)
ts1 <- rnorm(200, mean = 10, ...
0
votes
1
answer
73
views
Upgrading MAD-GANs source code to Tensorflow 2.x
I am trying to replicate the MAG-GAN architecture presented in the paper MAD-GAN paper starting from their source code: https://github.com/LiDan456/MAD-GANs.git , for a Time Series Anomaly Detection ...
1
vote
0
answers
103
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"Correct" way of preparing and feeding multiple pandas dataframes containing multivariate time series into a LSTM in tensorflow? (data pipeline)
I am pretty new with working with Tensorflow and in coding in general. So I'm sorry if this question seems trivial or was answered somewhere else in a way that I maybe didn't understand as a solution ...
1
vote
0
answers
133
views
How to perform time series analysis on cpu utilization data using python
I am new to time series analysis. I have the following dummy data:
Timestamp
Cpu_utilization_Percentage
Server_name
2022年01月11日 00:05:00
80
abc
2022年01月11日 00:10:00
30
xyz
2022年01月11日 00:15:00
5
def
2022-...
-2
votes
1
answer
543
views
Lack of Variability in Predictions from Multivariate LSTM Model
I've been working on a multivariate LSTM model for time series forecasting, but I'm encountering an issue where the predicted output doesn't exhibit enough variability or 'ups and downs'. The ...
0
votes
1
answer
71
views
How do I format FusionCharts time to include seconds?
My problem
I've been struggling with this issue for a few days now. My chart is seeing the values its being provided. I can tell because the range of chart has an upper limit of 60k, but it doesn't ...