Quertle is a biomedical and life science big data analytics company specializing in knowledge discovery and literature searching.

Company technology

Quertle has developed a suite of analytic technologies to support knowledge discovery in text information. The combined company HAS artificial intelligence , quantum logic , computational linguistics , and statistics into what has trademarked as They Have Quantum Logic Linguistics. This combined approach includes a set of methods for identifying and understanding specific terms. [1] The method enables the case-sensitive searching and word sense disambiguation of polysemic terms.

The company is also using artificial intelligence for automated identification of documents.

Company products

Quertal’s flagship product is its biomedical and life science research and discovery engine, Quetzal, [2] which uses the Quantum Logic Linguistics approach in combination with knowledge extraction-specific ontology (as compared to typical classification ontologies). Quetzal is an outgrowth of the company’s prior Quertle.info web site, [3] which served as a test site development.

Querta also partners with other companies to embed its technologies in other web sites and products.


  1. Jump up^ US Patent Application No. US2016 / 0078072Variant Discernment System and Method Therefor
  2. Jump up^ Parker, RMN (2016). “Product Review / Critique: Quetzal®”. JCHLA . 37 (1): 27-30. doi : 10.5596 / c16-004 .
  3. Jump up^ Coppernoll-Blach P (April 2011). “Quertle: The Conceptual Relationships Alternative Search Engine for PubMed” . J Med Libr Assoc . 99 (2): 176-177. doi : 10.3163 / 1536-5050.99.2.017 . PMC  3066589  .