{"type":"ScholarlyArticle","title":"A Partial Taxonomy of Knowledge about Actions","authors":[{"name":"Eugene Charniak","slug":"eugene-charniak","given":"Eugene","family":"Charniak","affiliation":""}],"abstract":"An incomplete taxonomy is proposed for the knowledge of actions a computer must have if it is to understand stories about people performing these actions . The classification is along two dimensions, ~ - why a person should follow the rule, and ~ - what the rule looks like. Four kinds of force are distinguished, Strict, Social, Suggested, and Regulatory, while six forms are distinguished, Subactions, Substates, Side Conditions, Methods, Time Orderings, and Do-Whiles. For the most part it seems that any force type may combine with any form type in producing a rule. One example, how to use an umbrella, is examined in detail although facts about many human activities, from playing bridge to washing one's hair, are used as examples.","doi":null,"url":"https://ijcai.org/proceedings/1975/15","pdf":"https://ijcai.org/proceedings/1975/0015.pdf","markdown":"https://ijcai.org/proceedings/1975/15.md","bibtex":"https://ijcai.org/proceedings/1975/bibtex/15","volume":{"slug":"1975","title":"Proceedings of the Fourth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 1975","url":"https://ijcai.org/proceedings/1975/","year":1975,"location":"Tbilisi, Georgia, USSR","dates":"","editors":"Patrick Winston and Carl Hewitt","isbn":"","publisher":"International Joint Conferences on Artificial Intelligence","doi_prefix":""},"section":"Representation Of Problems and Knowledge","track":"Representation Of Problems and Knowledge","number":15,"pages":{"first":91,"last":97},"keywords":[],"videos":[],"references":[],"license_note":"Copyright International Joint Conferences on Artificial Intelligence."}