Configure Recommender Settings

When you log in to the PoolParty Recommender Workbench, the settings controlling the process of semantic extraction, expansion and recommendation are set to defaults and the default search space in GraphSearch is pre-selected. You can adjust the settings following the instructions below.

Tip

Alternatively, you can configure the recommender settings in bulk by importing an existing configuration in JSON. This configuration may come from this or another instance of the PoolParty Recommender Workbench. For more information, refer to Import a Recommender Configuration.

Click the gear icon
1. on the application's landing page
2. or on the page with recommendations
The Settings dialog box opens.
If you want to use settings of an existing configuration, load that configuration. For more information, refer to Load a Recommender Configuration.
Change the recommender settings as appropriate.
Tip
You can find out more about the process of semantic extraction, expansion and recommendation in PoolParty in the Recommender Quick Start Guide and the Recommender Systems for Business Professionals white paper.
sidebar. Search Space
The search space determines the PoolParty project that will be used for the recommendations as well as available options when selecting a corpus for extraction of shadow concepts and corpus scoring. For more information on how to set up a search space in GraphSearch, refer to Create a Search Space.
Search space – Select a search space for this configuration in GraphSearch.
sidebar. Extraction
The Extraction settings control the process of text annotation in the PoolParty Extractor.
Extraction language – Select language for the extraction.
Minimum concept score – Enter the minimum score a concept has to reach to be extracted.
The score ranges from 1 to 100 where a higher score means that the concept is more relevant for the processed text. The score is influenced by two factors, the frequency where a higher number of occurrences leads to a higher score, and by the position in the text where occurrences produce a higher score the closer they are located to the beginning of the text. This means that concepts appearing more often and positioned closer to the beginning of the annotated text receive higher scores.
Maximum number of concepts – Enter the maximum number of concepts to be extracted.
Concept scheme filter – Select concept schemes that will serve as extraction filters. Only concepts contained in the selected concept schemes will be extracted.
Filter nested concepts – Select this option to exclude nested concepts from extraction. A nested concept is a concept that occurs within another concept in a text. For more information on nested concepts, refer to Filtering Nested Concepts.
Use disambiguation – Select this option to use a thesaurus and local context to resolve ambiguities. For more information on disambiguation in PoolParty, refer to Thesaurus Based Disambiguation of Annotated Concepts.
Use corpus – Select a corpus for the extraction of shadow concepts (if enabled). The available options depend on the configuration of the connected search space.
Use shadow concepts – Select this option to include shadow concepts in the extraction. Shadow concepts are concepts frequently found in the corpus in close proximity to the concepts from your thesaurus. For more information on shadow concepts, refer to Shadow Concepts in PoolParty.
sidebar. Expansion
The semantic expansion is done with a SPARQL query that expands the concepts extracted from the input.
Expansion query – Provide a SPARQL query that will be used to expand concepts from the input or load a saved one.
Note
The PoolParty Recommender Workbench comes with one sample expansion query, which makes use of concept's narrower and sibling concepts. Moreover, the application supports subject matter experts in constructing their own queries by giving them the option to test the queries and save them for future use.
For more information on expansion queries in the PoolParty Recommender Workbench, refer to Work with Expansion Queries.
Maximum number of expanded concepts – Enter the maximum number of concepts to be returned by the process of semantic expansion.
sidebar. Recommendation
The Recommendation settings control the display of recommendation results and the process of semantic recommendation.
Maximum number of recommendations – Enter the maximum number of recommended documents you want to get.
Use PoolParty recommendations with full-text search functionality of Elasticsearch – Select this option to return recommendations based on the concepts paired with the full-text search functionality of Elasticsearch. When you select this option, the recommendation request will not only include concepts but also the input text.
To apply the new settings, click Apply.
If you have previously entered a piece of text or a list of concepts into the input box, you can already see a list of concepts returned for your input (if you have started on the application's landing page) or a list of concepts returned for your input together with recommended documents (if you have started on the page with recommendations).
For more information on how to get, further refine and interpret a list of recommendations, refer to Verify Recommender Settings.
Caution
The configuration settings are only saved in the application’s memory for the duration of the current session. They will be lost as soon as you refresh your browser or log out.
If you want to keep them, you can save them into the application's database or export them for later import into this or another instance of the PoolParty Recommender Workbench.

In this section:

Configure Recommender Settings

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Caution