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Hello,
I am quite new to Keras, I am wondering how keras could extend my pre-processed inputs.
My case is similar to a "sentiment analysis". what I have is large english corpus labeled with their "se…
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Hi,
I don't know what part of a training set is used to train the final model if I use subsampling as a training option.
Just assume I have an imbalanced data set for binary classification.
I plan…
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Currently unfinished:
- Bagging: BB, Julia
Compare contents with section Wrapped Learners.
Maybe call this section "Multiclassifier Systems" or "Ensemble Methods" instead and mention/show superlea…
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New thread to post thoughts about precision and recall.
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Recently I work with a relatively strongly imbalanced classification problem and was wondering if you had any plans on addressing the problem of imbalanced classes during model fitting.
As a motivati…
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Hi Eric,
why do you do this:
```
- LiblineaR(data = d$data, labels = d$target, ...)
+ if (!is.null(.weights)) {
+ .weights = .weights[unique(names(.weights))]
+ }
+ LiblineaR(data = d$dat…
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There is something I am not understanding.
When I hash a small dataset with a big space (like 2^25) the matrix is big in memory. But it is a sparse dcgMatrix. Why?
In the paper from J. Langford, it …
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@好东西传送门 ，请问目前有木有关于不平衡数据分类（imbalance dataset classification）任务的人工二维toy dataset，我有些关于下采样的初步想法，想在这样的toy数据上看看对不对，二维的主要是可以可视化，容易看。
http://www.weibo.com/1855519363/Bgph3cHlX?mod=weibotime
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We started a discussion about derived data sets by email. Now follows a summary.
In some cases in ML, data sets are pre-processed and changed. And in some cases other people would like to use the sam…