# Knowledge engine

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A '''knowledge engine''' is part of a [decision-support system](/source/Decision_support_system) that combines data with [data model](/source/data_model)s and inference rules to provide an interface for people who want to make decisions or discover related data.  It may involve automatically extracting and structuring knowledge from less-structured sources, using these models and rules.

== History ==
In the late 1990s, the Decision Support Group at the [University of Fribourg](/source/University_of_Fribourg) developed a model for decision support software. This described the interface between data and models on one hand, and graphical interfaces for exploring them and making decisions on the other, as a knowledge engine.<ref>{{Cite web|title=Dicodess - A Software Framework for Developing Distributed Cooperative DSS|url=https://dicodess.sourceforge.net/|access-date=2020-07-14|website=dicodess.sourceforge.net}}</ref><ref>{{Cite web|title=Building Model-Driven Decision Support Systems With Dicodess|url=https://vdf.ch/index.php?route=product/product&product_id=1407|access-date=2020-07-14|page=110|website=vdf.ch}}</ref>  They also developed a mathematical modeling language, [LPL](/source/LPL_(programming_language)), in concert with that work.<ref>{{Cite web|title=A Mathematical Modeling Language|url=http://lpl.unifr.ch/lpl/main.html|access-date=2020-07-14|website=lpl.unifr.ch|archive-date=2020-07-14|archive-url=https://web.archive.org/web/20200714192945/http://lpl.unifr.ch/lpl/main.html|url-status=dead}}</ref>

With the rise of the semantic web, natural language processing, and topical knowledge bases, a number of other analytical tools have been categorized as knowledge engines, including in genomics (KnowEnG),<ref>{{Cite journal|last1=Sinha|first1=Saurabh|last2=Song|first2=Jun|last3=Weinshilboum|first3=Richard|last4=Jongeneel|first4=Victor|last5=Han|first5=Jiawei|date=2015-11-01|title=KnowEnG: a knowledge engine for genomics|journal=Journal of the American Medical Informatics Association |volume=22|issue=6|pages=1115–1119|doi=10.1093/jamia/ocv090|issn=1527-974X|pmc=5009907|pmid=26205246}}</ref> modeling human action (PaStaNet),<ref>{{cite arXiv|last1=Li|first1=Yong-Lu|last2=Xu|first2=Liang|last3=Liu|first3=Xinpeng|last4=Huang|first4=Xijie|last5=Xu|first5=Yue|last6=Wang|first6=Shiyi|last7=Fang|first7=Hao-Shu|last8=Ma|first8=Ze|last9=Chen|first9=Mingyang|last10=Lu|first10=Cewu|date=2020-04-21|title=PaStaNet: Toward Human Activity Knowledge Engine|class=cs.CV|eprint=2004.00945}}</ref> and speeding up general-purpose [question answering](/source/question_answering).<ref>{{Cite book|last1=Mabbu|first1=Venkatesh|last2=Asaduzzaman|first2=Abu|last3=Mridha|first3=Muhammad F.|title=2016 5th International Conference on Informatics, Electronics and Vision (ICIEV) |chapter=A novel semantic knowledge engine using automated knowledge extraction from World Wide Web |date=2016-05-01|pages=316–321|doi=10.1109/ICIEV.2016.7760018|isbn=978-1-5090-1269-5|s2cid=46446043}}</ref>

General-purpose search and discovery tools such as [WolframAlpha](/source/WolframAlpha) have also described themselves as knowledge engines.<ref>{{Cite web|date=2012-02-07|title=Forget Search Engines: Web 3.0 Is a Knowledge Engine|url=https://bigthink.com/ideafeed/forget-search-engines-web-30-is-a-knowledge-engine|access-date=2020-07-14|website=Big Think|language=en}}</ref>

== See also ==
* [Knowledge engineering](/source/Knowledge_engineering)
* [Knowledge engineer](/source/Knowledge_engineer)

== References ==
<references />

Category:Knowledge engineering

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Adapted from the Wikipedia article [Knowledge engine](https://en.wikipedia.org/wiki/Knowledge_engine) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Knowledge_engine?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.