dtm | Support xa | Architecture library

My eventual goal is to transform thousands of pdfs into a corpus / document term matrix to conduct some topic modeling. I am using the pdftools package to import my pdfs and work with the tm package for preparing my data for text mining. I managed to import and transform one individual pdf, like this:

First I create a document term matrix like below

I have this Inventory table for Rooms :

this is my mapping table :

I am trying to get the sum of intqty on the inventory table above for both room on same date: This is what i have so far :

I try to use the coherence metric calculation as reported [here][1].

I work with quanteda so I have a dfm

However in the link the use a dtm: #create DTM

I have 3 columns as follows :

• Created datetime – 03/04/2021 4.25pm ( DATE data type )
• Created dtm ( seconds ) – 50 ( INT )
• Created dtm ( milliseconds) – 979 ( INT )

I need a single column like : 03/04/2021 4:25:50:979

In Azure Data Bricks sql , is there a way to do this ?

I am scraping the New york Times webpages to do some natural language processing on it, I want to split the webpage into paragraphs when using corpus in order to do frequency counts on words that appear in paragraphs which also contain key words or phrases .

The below works with sentences but the paragraphs are donated by a • in NYT, so I need to replace this into how corpus reads paragraphs - anyone got any idea's? I have tried gsub("•","/n",...) and gsub("•","/r/n") but this didn't work.

If anyone knows how to do this all in tm corpus's rather than having to switch between quanteda and TM that would save some code.

For a given corpus of tokenized texts, I want to perform word weighing with several weighing techniques. To do so, I created the following class:

I ran an NLP model which the result has 8 sub-results. So basically, model m has some sub_model features and I can access them like m$phi. As shown below:

what I am trying to do is saving these results in a list and use them later. This is how I approached it:

I'm trying to get data from a node that is on the same level as the node I'm using for a for-each. How do I get the DTM nodes to return data while I am in the SVC for-each?

I thought add "/" would send me up a level but it's not working. I also thought "//" might work but that doesn't work either.

Here is my XML: