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Softwares lafej
At Lafej we have students developing software, this software will be made available for use by the community, it is software for data correction and also to make our day-to-day life in the laboratory easier.
Lafej machine learning
Machine learning for time series correction
Time series are essential to understand physical phenomena and allow modeling for future predictions of natural variables. However, obtaining them can be challenging due to equipment failures and maintenance costs, leading to data losses that impair analysis. Researchers try to fill these gaps with plausible values, but inadequate methods can generate bias. Techniques such as neighbor-point averaging, maximum likelihood, and machine learning algorithms have been used to retrieve data, each with advantages and disadvantages. In this work, Machine Learning methods will be applied to retrieve data in geophysical time series.
The solution
The solution was to create a machine learning model to solve this problem, since the model learns from patterns and can predict data with errors. Below I will leave an image of a graph that contains data errors in its acquisition.
Regression model
Regression modeling is a statistical technique used to understand and predict the relationship between a dependent variable (or response) and one or more independent variables (or predictors). The goal is to create a mathematical function that best represents this relationship, allowing values of the dependent variable to be predicted based on the independent variables.
Application interface
Interface
Explanation for using the app:
Browse File: Browse for the file in the window that opens
Load Data: when clicking on the load data button, your file must already be selected. This is when the model will learn from the data and deliver the correction result.
The rest of the buttons are only for plotting the original graph (with errors) and the graph that has already been corrected. There is also the option to save data and the graph, and finally the development information and some more information for use.
Use o aplicativo
Instruções para download
To use our application, follow a few steps:
1 - fill in the form fields
- why do we want this information: we want to have access to know who is using our application and where.
2- After the form is filled out you will be redirected to a media fire page, download it there.
3-the computer's operating system constantly detects the application as malicious. To reverse this situation, we are already working to obtain the digital certificate, but at the moment we do not have it yet. So when you click on download, a warning field will appear in the download, click on "keep downloading".
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