Extract Sentiment (Operator Toolbox)

Parameters

• model The model used to score the text.
  • aylien: Uses the Aylien Sentiment Analysis API (https://aylien.com/text-api/sentiment-analysis/). Note that you will need to create an Aylien API connection to use this operator and are limited to Aylien's rate limiting as described on their pricing page (https://developer.aylien.com/plans).
  • meaning_cloud: Uses the MeaningCloud Sentiment Analysis API (https://www.meaningcloud.com/developer/sentiment-analysis/). Note that you will need to create a MeaningCloud API connection to use this operator and are limited to MeaningCloud's rate limiting as described on their pricing page (https://www.meaningcloud.com/products/pricing).
  • sentiwordnet: Uses the SentiWordNet 3.0 sentiment dictionary (https://sentiwordnet.isti.cnr.it/). Reference: Stefano Baccianella, Andrea Esuli, and Fabrizio Sebastiani. SENTIWORDNET 3.0: An Enhanced Lexical Resource for Sentiment Analysis and Opinion Mining.
  • vader: Uses the VADER (Valence Aware Dictionary and sEntiment Reasoner) lexicon and rule-based sentiment (https://github.com/cjhutto/vaderSentiment). Reference: Hutto, C.J. and Gilbert, E.E. (2014). VADER: A Parsimonious Rule-based Model for Sentiment Analysis of Social Media Text. Eighth International Conference on Weblogs and Social Media (ICWSM-14). Ann Arbor, MI, June 2014.
  Range:
• text_attribute The text attribute you want to score. Range:
• show_advanced_output If this parameter is set to false, only a Score attribute will be created. These scores are not always normalized and depend on the individual model. If this parameter is set to true, additional attributes will be created. These additional attributes vary depending on which model is chosen. Range:
• use_default_tokenization_regex If this parameter is set to true, this operator will tokenize the text using the \W regular expression (all non-word characters) for SentiWordNet and VADER methods. If this parameter is set to false, a custom regular expression for tokenization is expected. Range:
• tokenization_regex The custom tokenization regex used to split the text. Range:
• additional_words This parameter allows you to add your own words to the scoring. The word you want to add to the dictionary needs to be added to the left hand side, the score of it to the right hand side. Scores are supposed to be real values. All dictionary based methods are scaled in a way, that the maximum absolute score is 1. Thus it is recommended to use weights between -1 and +1. If you need to add many new words it is recommended to use "Dictionary Based Sentiment" operator, which allows you to create your own model. Range:
• meaningcloud_connection This parameter is only available for MeaningCloud. This parameter is used to connect to the API using a predefined connection. You can have many predefined connections. You can choose one of them using the drop down box. You can add a new connection or modify previous connections using the button next to the drop down box. You may also accomplish this by clicking on the Manage Connections from the Connections menu in the main window. A new window appears. This window will send you to the third-party API provider to create an account and produce an API key. The Test button in this new window will allow you to check whether the connection was made. Save the connection once the test is successful. After saving a new connection, it can be chosen from the drop down box of the connection parameter. Range:
• aylien_connection This parameter is only available for Aylien. This parameter is used to connect to the API using a predefined connection. You can have many predefined connections. You can choose one of them using the drop down box. You can add a new connection or modify previous connections using the button next to the drop down box. You may also accomplish this by clicking on the Manage Connections from the Connections menu in the main window. A new window appears. This window will send you to the third-party API provider to create an account and produce an API key . The Test button in this new window will allow you to check whether the connection was made. Save the connection once the test is successful. After saving a new connection, it can be chosen from the drop down box of the connection parameter. Range: