منابع مشابه
Cyc-Enhanced Machine Classification
We describe a framework for linking together a structured ontology, deductive logic, and probability, to solve classification problems. We illustrate this framework with the Whodunit problem: identifying the perpetrator of a crime. Several experiments show that the use of Cyc’s ontology and inference abilities substantially improves classification accuracy, both in decision tree classifiers and...
متن کاملMapping Ontologies into Cyc
The advent of Web services, and the Semantic Web described by domain ontologies, highlight the bottleneck to their growth: ontology mapping, merging, and integration. In this paper we present the process by which over the last 15 years several ontologies of varying complexity have been mapped or integrated with Cyc, a large commonsense knowledge base. These include SENSUS, FIPS 10-4, several la...
متن کاملHierarchical Inference Applied to Cyc
Hierarchical graphs are a frequent solution for capturing symbolic data due the importance of hierarchies for defining knowledge. In these graphs, relations among elements may contain large portions of the element’s semantics. However, knowledge discovery based on analyzing the patterns of hierarchical relations is rarely used. We outline four inference based algorithms exploiting semantic prop...
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Cyc, a massive project to create a knowledge base spanning all human consensus knowledge, is discussed. The project will require the development of a new logic language for expressing knowledge before sets of procedures can be created and the knowledge base itself built. Cyc programmers developed CycL, a unique representation language and inference engine. Inferencing in Cyc at the heuristic le...
متن کاملThe Evolution of the Cyc Methodology
ions (that is, have to create O(n ⋅ m ) objects) using the set-of-points-based abstraction; using the interval-based formalism, we Articles 46 AI MAGAZINE . . . by associating temporal extents with objects as opposed to reifications of propositions, we get a certain added expressiveness. Associated with each ground formula is an interval of persistence. Thus, if we knew that Fred was happy at t...
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ژورنال
عنوان ژورنال: Communications of the ACM
سال: 1995
ISSN: 0001-0782,1557-7317
DOI: 10.1145/219717.219745