@Article{Hoffman_ComputGeosci_19930101,
 author		= {Forrest M. Hoffman and Vijay S. Tripathi},
 title		= {A Geochemical Expert System Prototype Using Object-oriented Knowledge Representation and a Production Rule System},
 journal	= ComputGeosci,
 volume		= 19,
 number         = 1,
 pages		= {53--60},
 doi		= {10.1016/0098-3004(93)90042-4},
 day		= 1,
 month          = jan,
 year		= 1993,
 abstract	= {This paper presents the design and development of a Geochemical Expert System prototype (GES) for analyzing solution---mineral interactions in nature. The emphasis is placed on expert system design and knowledge representation. One of the most challenging and research-intensive steps was the identification of the key geochemical characteristics that would enable the expert system to identify salient features of any user-defined geochemical composition. Moreover, developing a system to create geochemical interpretations similar to those written by expert geochemists proved to be difficult. Important geochemical characteristics and their interrelationships which were ``discovered'' during knowledge acquisition and conceptualization are presented. These characteristics have been organized and documented within the expert system to emulate the skills of an expert geochemist. Examples of expert system-generated analyses are presented.}
}