Icon

02 Reading Text Data

02 Reading Text Data
Exercise: Encapsulating strings into a document1) Read the KNIME-Tweets.table file available in the data folder. It contains a list oftweets about KNIME, the user, the date of the tweet, and the retweets. 2) Convert the date of the tweet from string to Local Date. Append a new column so thatyou don't lose the time information in the string column.3) Convert the tweets into documents with- Tweet column as the title and the full text- Twitter as the document source- User column as the author- Date column as the publication date Exercise: Reading data from pdf1) Read the 2020-05-25-l4-tp-5-sessions.pdf file available in the data folder with theTika Parser node. The file is the agenda of the L4-TP Introduction to Text Processinginstructor-led course. Enable the Extract attachments and embedded files and Extractinline images from pdfs options. You can select any directory.2) Take a look at the extracted image. What do you see?3) Convert the text output into a document. Use "2020-05-25" as the publication date. Not sure if this exercise is do-able really withthis data? Since the date/time in our RSS datafeed is already stored as a date/time data type,and is formated as a document already :) Node 1Node 4Node 5Node 6URL to RSS feedExampleRead RSS feed and generate document columnFilter unnecessarycolumnsTable Reader Strings To Document String to Date&Time Tika Parser Strings To Document Document Viewer Table Creator RSS Feed Reader Column Filter Exercise: Encapsulating strings into a document1) Read the KNIME-Tweets.table file available in the data folder. It contains a list oftweets about KNIME, the user, the date of the tweet, and the retweets. 2) Convert the date of the tweet from string to Local Date. Append a new column so thatyou don't lose the time information in the string column.3) Convert the tweets into documents with- Tweet column as the title and the full text- Twitter as the document source- User column as the author- Date column as the publication date Exercise: Reading data from pdf1) Read the 2020-05-25-l4-tp-5-sessions.pdf file available in the data folder with theTika Parser node. The file is the agenda of the L4-TP Introduction to Text Processinginstructor-led course. Enable the Extract attachments and embedded files and Extractinline images from pdfs options. You can select any directory.2) Take a look at the extracted image. What do you see?3) Convert the text output into a document. Use "2020-05-25" as the publication date. Not sure if this exercise is do-able really withthis data? Since the date/time in our RSS datafeed is already stored as a date/time data type,and is formated as a document already :) Node 1Node 4Node 5Node 6URL to RSS feedExampleRead RSS feed and generate document columnFilter unnecessarycolumnsTable Reader Strings To Document String to Date&Time Tika Parser Strings To Document Document Viewer Table Creator RSS Feed Reader Column Filter

Nodes

Extensions

Links

Download

To use this workflow in KNIME, download it from the below URL and open it in KNIME:

Download Workflow
Created by: Lada.Rudnitckaia
Created at: 2020-07-31
On NodePit since: 2022-03-29
Last update: 2024-12-21
Created with KNIME version: v4.5.0
Tags: Text miningText processingpdfdocumenttika parsernlpnatural language processing

Deploy, schedule, execute, and monitor your KNIME workflows locally, in the cloud or on-premises – with our brand new NodePit Runner.

Try NodePit Runner!