6,897 questions with no upvoted or accepted answers
795 views

### Visualization of multiple Markov models

I am working on a project where we compare over 10 different Markov models, each representing a different treatment plan. Most often single models are visualized with a decision tree or transition ...
4k views

### Catboost Categorical Features Handling Options (CTR settings)?

I am working with a dataset with large number of categorical features (>80%) predicting a continuous target variable (i.e. Regression). I have been reading quite a bit about ways to handle categorical ...
482 views

### XGBoost outputs tend towards the extremes

I am currently using XGBoost for risk prediction, it seems to be doing a good job in the binary classification department but the probability outputs are way off. i.e., Changing the value of a ...
563 views

### What is the difference between fasttext and DANs in document classification?

I came across two interesting papers which describe promising approaches for document classification using word embedding. 1. The fasttext algorithm Described in the paper Bag of Tricks for ...
310 views

### ngram and RNN prediction rate wrt word index

I tried to plot the rate of correct predictions (for top 1 shortlist) with relation to word's position in sentence : I was expecting to see a plateau sooner on the ngram setup since it need less ...
117 views

### Is Minimax Linkage a Lance-Williams hierarchical clustering?

I found the following article on "Hierarchical Clustering With Prototypes via Minimax Linkage". It is stated in Property 6 that Minimax linkage cannot be written using Lance–Williams updates. A ...
215 views

### Finding linear transformation under which distance matrices are similar

I have n sets of vectors, where each set S_i contains k vectors in ...
140 views

### Differences between gradient calculated by different reduction methods in PyTorch

I'm playing with different reduction methods provided in built-in loss functions. In particular, I would like to compare the following. The averaged gradient by performing backward pass for each loss ...
184 views

### How to arrange the dataset/images for CNN+LSTM

I am working on an image classification problem using Transfer Learning with Resnet50 as base model (in Keras) (For example Class A and Class B). There is a time factor involved in this ...
91 views

### How to use a one-hot encoded nominal feature in a classifier in Scikit Learn?

I'm working on a genre classification problem on a songs dataset. Since genre is a nominal feature, I used sklearn's LabelBinarizer to get the one-hot encoding for this feature for every row in the ...
533 views

### Understanding Timestamps and Batchsize of Keras LSTM considering Hiddenstates and TBPTT

What I'm trying to do What I am trying to do is predicting the next data-point $x_t$ for each point in the timeseries $[x_0, x_1, x_2,...,x_T]$ in the context of a date-stream in real-time, in theory ...
3k views

### K-fold cross validation when using fit_generator and flow_from_directory() in Keras

I am using flow_from_directory() and fit_generator in my deep learning model, and I want to use cross validation method to train ...
117 views

### Improve NER label results on Non-English text

I am working on some Medieval Latin text and was using various methods of NER such as CLTK (Latin Model), Spacy (Multilingual, Italian, Spanish Model) and StanfordNER (Spanish Model). When I used the ...