| 词条 | Knowledge Engineering Environment |
| 释义 |
| name = | logo = | logo alt = | logo caption = | screenshot = | screenshot alt = | caption = | author = | developer = IntelliCorp | released = {{Start date and age|1983}} | discontinued = Yes | latest release version = | latest release date = | programming language = Common Lisp | operating system = | platform = Symbolics Lisp Machine, HP 9000 Series 700 and 800 workstations, the Sun SPARCstation and IBM RS6000 workstation | size = | language = English | genre = Expert system development tool | license = Proprietary | standard = | AsOf = }}{{Use dmy dates|date=October 2017}} Knowledge Engineering Environment (KEE) is a frame-based development tool for expert systems.[1] It was developed and sold by IntelliCorp, and first released in 1983. It ran on Lisp machines, and was later ported to Lucid Common Lisp with the CLX library, an X Window System (X11) interface for Common Lisp. This version was available on several different UNIX workstations. On KEE, several extensions were offered:
In KEE, frames are called units. Units are used for both individual instances and classes. Frames have slots and slots have facets. Facets can describe, for example, a slot's expected values, its working value, or its inheritance rule. Slots can have multiple values. Behavior can be implemented using a message passing model. KEE provides an extensive graphical user interface (GUI) to create, browse, and manipulate frames. KEE also includes a frame-based rule system. In the KEE knowledge base, rules are frames. Both forward chaining and backward chaining inference are available. KEE supports non-monotonic reasoning through the concepts of worlds. Worlds allow providing alternative slot-values of frames. Through an assumption-based truth or reason maintenance system, inconsistencies can be detected and analyzed.[5] ActiveImages allows graphical displays to be attached to slots of Units. Typical examples are buttons, dials, graphs, and histograms. The graphics are also implemented as Units via KEEPictures, a frame-based graphics library. See also
References1. ^{{cite web |url=http://portal.acm.org/citation.cfm?id=62001 |title=An evaluation of expert system development tools}} 2. ^{{cite web |url=http://doi.acm.org/10.1145/76738.76766 |title=The SimKit system: knowledge-based simulation and modeling tools in KEE}} 3. ^{{cite web |url=http://portal.acm.org/citation.cfm?id=62001 |title=SimKit: a model-building simulation toolkit}} 4. ^{{cite web |url=http://portal.acm.org/citation.cfm?id=62001 |title=KEEConnection: a bridge between databases and knowledge bases}} 5. ^{{cite web |url=http://portal.acm.org/citation.cfm?id=62001 |title=Reasoning with worlds and truth maintenance}} External links
3 : Knowledge engineering|Knowledge representation|Common Lisp software |
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