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Results tagged with dataset
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user 97
A dataset is a collection of data, often in tabular or matrix form. This tag is NOT intended for data requests ("where can I find a dataset about ...") --> see OpenData
7
votes
Where can I download historical market capitalization and daily turnover data for stocks?
Quant SE is better place for questions related to getting financial data:
What data sources are available online
Market capitalization data | Quantitative Finance
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77
votes
Publicly Available Datasets
Some social network data sets:
Stanford University large network dataset collection (SNAP)
A huge twitter dataset that includes followers + large collection of twitter datasets here
LastFM data set …
3
votes
Data available from industry operations
A huge list of open data sets is listed here:
Publicly Available Datasets
Including Amazon, KDnuggets, Stanford, Twitter, Freebase, Google Public and more.
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1
vote
Accepted
Ratio of positive to negative sample in data set for best classification
I guess you are not limited to these 100 samples. Generate more, and let each 5th be negative. Then reduce number of positives by random removing 4/5 of them.
And check this out Training imbalanced d …
- 5,474
3
votes
Accepted
What is the best way to scale a numerical dataset
There is pretty much mess in terminology in your question :).
Data Regularization is used for model selection, it is not about data processing. Here it is described in more friendly manner.
What you …
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35
votes
4
answers
16k
views
Quick guide into training highly imbalanced data sets
I have a classification problem with approximately 1000 positive and 10000 negative samples in training set. So this data set is quite unbalanced. Plain random forest is just trying to mark all test s …
- 5,474
4
votes
Accepted
Creating validation data for model comparison
Predicting and scoring are two different tasks.
And according to your answers and comments you are not solving prediction problem. You just want to set to each student a number in range [1,100] accor …
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