Questions tagged [metadata]

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2
votes
1answer
110 views

Automatically uses several cores on R

I am using a library called MFE to generate meta-features. However, I am working right now with several files and I notice that I am using only 1 core of my machine and taking too much time. I have ...
1
vote
0answers
29 views

Labeling data as having an error?

I am curating a large quantity of data from different sensors. If I know that a particular sensor was broken or poorly calibrated for a particular time range, what would be a useful way of annotating ...
1
vote
1answer
38 views

Understanding a dataset (prior to applying ML models) with no metadata given

How do you understand a dataset when there is no metadata given (no details about the attributes given in the dataset)? It is difficult to comprehend the attribute names as only the short forms are ...
0
votes
1answer
32 views

Finding an appropriate price using thousands of data points

If i have a lot of data points describing the price of a used car. How would I find the market value of the car (assuming that the price points in the data set are the only determinant used, and the ...
0
votes
3answers
427 views

Visualizing community composition using network of pie charts

Given a social network, I want to perform community detection and compare the result to known node metadata, such as gender, age, etc. to see if certain communities are largely composed of "similar" ...
1
vote
0answers
17 views

Antisymmetry of graph of Information vs probability

The formula for Information given by a data of occurring with probability p is: I=-log2 p This formula gives the bits if information needed to know the outcome of the event. This formula captures ...
4
votes
0answers
80 views

Meta-analysis of public 16S data

I am trying to start a meta-analysis for which I want to extract some 16S-based information from public databases. Moreover, I want to relate this information with any metadata found in the associated ...
4
votes
2answers
792 views

Recommendations for storing time series data

As part of my thesis I've done some experiments that have resulted in a reasonable amount of time-series data (motion-capture + eye movements). I have a way of storing and organizing all of this data, ...
18
votes
4answers
3k views

How to annotate text documents with meta-data?

Having a lot of text documents (in natural language, unstructured), what are the possible ways of annotating them with some semantic meta-data? For example, consider a short document: ...
3
votes
1answer
51 views

Can metadata be used to adapt parsing for an unescaped in field use of the delimiter?

I have data coming from a source system that is pipe delimited. Pipe was selected over comma since it was believed no pipes appeared in field, while it was known that commas do occur. After ingesting ...