Echocardiography doppler diagnoses acquired stenosis 8

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: loca+on ­of Anatomical Structure part ­of Pharmacologic Substance causes Pharmacologic Substance treats Physiological Func+on Biologic Func+on Organism Pathological Func+on Pathologic Func+on Dan Jurafsky Extrac'ng UMLS rela'ons from a sentence Doppler echocardiography can be used to diagnose left anterior descending artery stenosis in patients with type 2 diabetes!  Echocardiography, Doppler DIAGNOSES Acquired stenosis 8 Dan Jurafsky Databases of Wikipedia Rela'ons Wikipedia Infobox Rela+ons extracted from Infobox Stanford state California Stanford moao “Die Lub der Freiheit weht” … 9 Dan Jurafsky Rela'on databases that draw from Wikipedia •  Resource Descrip+on Framework (RDF) triples subject predicate object Golden Gate Park location San Francisco! dbpedia:Golden_Gate_Park dbpedia ­owl:loca+on dbpedia:San_Francisco! •  DBPedia: 1 billion RDF triples, 385 from English Wikipedia •  Frequent Freebase rela+ons: people/person/na+onality, loca+on/loca+on/contains people/person/profession, people/person/place ­of ­birth biology/organism_higher_classifica+on film/film/genre 10 Dan Jurafsky Ontological rela'ons Examples from the WordNet Thesaurus •  IS ­A (hypernym): subsump+on between classes •  Giraffe IS ­A ruminant IS ­A ungulate IS ­A mammal IS ­A vertebrate IS ­A animal… •  Instance ­of: rela+on between individual and class •  San Francisco instance ­of city! Dan Jurafsky How to build rela'on extractors 1.  Hand ­wriaen paaerns 2.  Supervised machine learning 3.  Semi ­supervised and unsupervised •  •  •  Bootstrapping (using seeds) Distant supervision Unsupervised learning from the web Relation Extraction What is rela+on extrac+on? Relation Extraction Using paaerns to extract rela+ons Dan Jurafsky Rules for extrac'ng IS ­A rela'on Early intui+on from Hearst (1992) •  “Agar is a substance prepared from a mixture of red algae, such as Gelidium, for laboratory or industrial use” •  What does Gelidium mean? •  How do you know?` Dan Jurafsky Rules for extrac'ng IS ­A rela'on Early intui+on from Hearst (1992) •  “Agar is a substance prepared from a mixture o...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern