Sentiment Analysis

Overview


This technical note describes Lexbe’s Email Sentiment Analysis+ service which uses a Natural Language Processing (NLP) service to code email messages as positive, neutral or negative in overall sentiment.  This is offered as part of Lexbe’s AI Insights service.


Background


Lexbe’s Email Sentiment Analysis+ service can be run on email files within a Lexbe eDiscovery Platform (LEP) case and uses natural language processing to detect the overall sentiment/emotional tone of the document categorizing the value as either positive or negative.   


The sentiment values are maintained per document in custom checkbox fields (Positive and Negative) within the LEP case. This allows for easy filtering and isolation. If no checkbox value is returned for a particular document, that concludes that the sentiment is neutral. This service can be particularly beneficial when working with emotionally charged disputes.


Benefits


Lexbe’s Sentiment Analysis service can assist in:

  • Finding ‘smoking gun’ emails

  • Finding important emails when full review of all email is not practicable

  • Understanding dispute themes

  • Speeding review


Service Description


Lexbe’s Email Sentiment Analysis+ service can be run on a case per request by Lexbe’s Professional Service team.  Through automated processing, sentiment attributions (positive, neutral or negative) are recognized within the text and then extracted and maintained in custom document fields available for searching and filtering.


Once the Service is run, then the extracted and fielded data can be seen from the Doc Tab in the LEP Document Viewer for each document, or in a table from the Browse or Search pages with the specified columns (fields) showing.


Sentiment Analysis fields in the LEP Doc Viewer:



Sentiment Analysis fields in the LEP Browse Tab:




The Email Sentiment Analysis+ values can be filtered on to reduce the documents to only documents containing the particular sentiment of interest.  This is done from the filter tool accessible from the Browse and Search pages.


Sentiment Analysis fields in the Filter Tool:



How to Request Service


Lexbe’s Email Sentiment Analysis+ service can be run on a case per request by Lexbe’s Professional Service team. There is no charge for one run on Subscription Accounts and a small per document charge for Flex accounts.


Additional Information


To request this service or additional information, please contact professionalservices@lexbe.com