The Configure Extractors Wizard is a tool that enables you to select and customize the extractors that are used for data extraction from documents. It is accessed via the Data Extraction Scope activity, which is a container for extractor activities. The wizard allows you to map the fields defined in your taxonomy with the fields supported by each extractor, and to set the minimum confidence level and the framework alias for each extractor. The wizard is mandatory for the extractor configuration, as it ensures that the extractors are applied correctly to each document type and field1.
References: Configure Extractors Wizard of Data Extraction Scope

Comprehensive and Detailed Explanation From Exact Extract:
TheMachine Learning Extractoractivity includes a unique property:ML Skill, which references a deployed machine learning model fromAI Center. This property allows the extractor to know which model (skill) to call for performing the data extraction.
* Other extractors like Regex or Form do not interact with AI Center and thus do not require this property.
* UiPath Documentation Reference:Machine Learning Extractor - UiPath Docs

Comprehensive and Detailed Explanation From Exact Extract:
In UiPath Communications Mining, theDiscoverphase is the initial stage in which the system groups similar messages or conversations based on content. These clusters help users identify patterns and common intents, which serve as a foundation for defininglabels and training taxonomy.
* This unsupervised learning approach is essential forbootstrapping model trainingwith minimal manual intervention.
* UiPath Documentation Reference:Discover Phase - Communications Mining

The Explore phase is the second phase of model training in UiPath Communications Mining, which is a solution that enables the analysis of large volumes of text-based communications using natural language processing and machine learning. The Explore phase builds on the foundations of the taxonomy that was created in the Discover phase by reviewing clusters and searching for different terms and phrases. The objective of the Explore phase is to provide each of the labels or entities thatare important for the use case with enough varied and consistent training examples, so that the platform has sufficient training data from which to make accurate predictions across the entire dataset. The Explore phase is the core phase of model training, and requires the most time and effort, but also leads to better model performance and accuracy1.
References: 1: Communications Mining - Explore

In UiPath's Taxonomy Manager, the "Possible values" rule should be used when a text field can have one of several predefined values. This ensures that the extracted data is validated against a list of acceptable values, helping to maintain consistency and accuracy during the extraction process. It is particularly useful for fields such as status indicators or categorical fields where only a limited set of options is valid.
(Source: UiPath Taxonomy Manager documentation)