Data Collection and Processing

README.md

@@ -56,13 +56,19 @@ This dataset does not contain any fields. It is a corpus of paragraphs and sente
 
 ### Source Data
 
-Two main sources:
- - [The Journal Of Extension] (https://archives.joe.org/)
- - Land-grant institutions’ official websites (e.g., [MSU Extension](https://www.canr.msu.edu/outreach/index), [UNL Extension](https://extension.unl.edu/))
+Two categories of sources:
+ - [The Journal Of Extension](https://archives.joe.org/)
+ - Land-grant institutions’ official websites (e.g., [MSU Extension](https://www.canr.msu.edu/outreach/index), [UNL Extension](https://extension.unl.edu/), etc.)
 
 #### Data Collection and Processing
 
 <!-- This section describes the data collection and processing process such as data selection criteria, filtering and normalization methods, tools and libraries used, etc. -->
+The dataset was compiled from (1) 212 scholarly full-text articles from the [Journal Of Extension](https://archives.joe.org/) and (2) 1443 materials extracted from 40 land-grant institutions that provide Extension services throughout the country. 
+These materials include factsheets, e-books, and articles related to agricultural research, and they are in HTML, text, and PDF formats.
+
+The PDFs were processed and converted into text using [Amazon's Textract](https://aws.amazon.com/textract/ocr/).
+
+Furthermore, we removed non-UTF8 characters, bibliographic references, and URLs (when possible). 
 
 [More Information Needed]