Knowledge Domains are taxonomies, thesauri, or authority files which are already built and ready for deployment in your environment. They include a term base with each record being fully NISO Z39.19 and ISO 25964 standards compliant. Each term record includes hierarchical, equivalence, and associative relationships. Hierarchical relationships are broader/narrower terms; equivalence relationships are synonyms; and associative relationships are related terms (example “Nurses” preform “Nursing”, but they are not the same thing). These knowledge domains form a solid basis for ontology reports and classification or organization of large language model data sets. We also associate a rule base for automatic indexing of tagging of content using those terms. The vocabularies may be purchased with or without the accompanying rule base.
The knowledge domain vocabularies are available in over 22 formats for use in consuming applications, including four XML export styles, four SKOS exports (SKOS-1 ,SKOS-2, SKOS_XL and SKOS-Atypon), OWL, MARC, CSV, tab delimited, Excel, HTML, XHTML, and more. Rule bases are available in Data Harmony import format or XML.
| Name | Description | Size (terms) | Rule Base Available |
| Social Sciences | A broad array of social science topics fall under this thesaurus’ coverage. | 2477 | Yes |
| Behavioral Science | A thesaurus for all things behavioral and touching on criminology, economics, and ethics. | 4144 | Yes |
| Art | An ambitious thesaurus for both art and literature. | 2980 | Yes |
| Taxogene | An outline of the genes included in the US Human Genome Project. | 40304 | Yes |
| COVID | Built to cover COVID-19 and 2020 pandemic-related concepts. Includes biochemical terms, pharmaceutical treatments, and epidemiology concepts. | 67 | Yes |
| Education | Compiled for the National Information Center for Educational Media (NICEM), the Education domain includes multiple curricular areas. | 1155 | Yes |
| Astronomy | Consists of terms used by professional astronomers in their research. | 1921 | Yes |
| Nursing | Coverage of the nursing profession including the procedures and policies for working at the nurse’s station as well as the literature on the science of nursing. | 803 | Yes |
| National Agricultural Library | Covering the field of agriculture and related activities this broad thesaurus is highly regarded work from the US National Agricultural Library | 57000 | Yes |
| Kew MPNS | Developed in partnership with the Royal Botanical Gardens at Kew. Includes an average of 16.7 synonyms per plant name and suggests the Kew approved genus and species name to the author/researcher. | 42761 | Yes |
| Pharmaceuticals | Drug names and coverage of the system creating and maintaining the list of adverse effects and mechanism of action for a number of popular drugs as well as the concepts, rules, and regulations affecting the pharmaceutical industry. | 19545 | Yes |
| CPT | From the American Medical Association (AMA), this knowledge domain contains the diagnostic codes used in medical coding and payment systems. | 12124 | Yes |
| HCPCS | From the American Medical Association (AMA), this list contains the information on the associated prosthetics and supplies used in medicine and billed to insurance or to Medicare. | 8882 | Yes |
| Health Science | Health care, medical science, and wellness are in this thesaurus. | 5636 | Yes |
| History | History and methods of historiography are covered in this thesaurus. | 789 | Yes |
| ICD10 | International Classification of Diseases maintained by the Center for Medicare and Medicaid Services (CMS). | 94416 | Yes |
| NewsThes | Newsthes is a controlled vocabulary that reflects the media’s constantly evolving vernacular. | 5342 | Yes |
| DTIC | The Defense Technical Information Center thesaurus is used to index the DTIC Technical Reports Collection on Public STINET and indexes research reports generated for and by the Department of Defense. | 14377 | Yes |
| Religion | The faith-based cosmologies of humanity are covered in depth by this thesaurus. | 729 | Yes |
| MeSH | The Medical Subject Headings (MeSH®) thesaurus is used for indexing, cataloging, and searching for biomedical and health-related information. | 30181 | Yes |
| NASA | The NASA knowledge domain contains the authorized subject terms by which the documents in the NASA Aeronautics and Space Database are indexed and retrieved. | 18460 | Yes |
| Physical Sciences | The physical world is the focus of this thesaurus, from the study of the universe to the observation of subatomic particles. | 8680 | |
| PLOS | The Public Library of Science is an open access publisher of broad science coverage especially for biology and genes. | 11082 | |
| Political Science | The study of politics and its related fields is the focus of this thesaurus. | 1923 | |
| ERIC | The Thesaurus of ERIC Descriptors is a carefully selected list of education-related words and phrases. | 4636 | |
| Suspect Cell Lines | There are cell lines used in research which are known to be corrupted or in other ways unsuitable for use in research. | 508 | Yes |
| Business | This is a general taxonomy for indexing general office information. About 34,000 terms are geographical terms. This system was created for automatic filtering of office-related information. | 3634 | Yes |
| Biological Science | This is a thesaurus for the study of life, the environment, husbandry, and even paleontology. | 8837 | Yes |
| Communications | This is an AII-produced thesaurus covering all forms of human communication, whether aided by technology or not. | 43 | Yes |
| Computer Science | This is an AII-produced thesaurus covering computer and information science subjects. | 167 | |
| Visual & Performing Arts | This is an AII-produced thesaurus focusing on artworks including architecture. | 324 | |
| Literature & Drama | This is an AII-produced thesaurus focusing on storytelling, including history and criticism. | 112 | |
| Language Arts | This is an AII-produced thesaurus for basic human communications with a touch of linguistics. | 51 | |
| Geography | This is an AII-produced thesaurus for cartographic, physical, and human geography. | 113 | Yes |
| Health & Safety | This is an AII-produced thesaurus for personal health, public health, and personal safety. | 123 | Yes |
| Science | This is an AII-produced thesaurus providing a cross section of science with emphasis on science education. | 1091 | Yes |
| Physical Education & Recreation | This is an AII-produced thesaurus with an emphasis both on athletics and recreation. | 157 | Yes |
| Psychology | This knowledge domain covers general psychology at the college level. | 268 | Yes |
| Science, Technology, Engineering, and Mathematics | This knowledge domain covers the top terms in STEM included in science, agriculture, mathematics, medicine, engineering. | 101000 | Yes |
| Occupational Safety and Health | This knowledge domain reflects the health and safety rules and regulations for the US and Canada. | 12987 | Yes |
| Information Science | This thesaurus contains terms for the theory, technology, and application of information science. | 661 | Yes |
| Law | This thesaurus covers legal fields of study and application. | 2196 | Yes |
| Economics | This thesaurus covers micro- and macroeconomics, including research and policy subject matter. | 4259 | Yes |
| Philosophy | This thesaurus covers philosophy, logic, and applied subjects. | 2420 | Yes |
| Environment | This thesaurus covers the full range of environmental topics and associated regulatory concepts. | 7000 | Yes |
| Linguistics | This thesaurus covers the theory and application of linguistics. | 835 | Yes |
| Applied Science | This thesaurus covers the universe of science applications. | 6961 | Yes |
| Mathematics | This thesaurus focuses on pure and applied mathematics. | 1816 | Yes |