ELEM MUSIC THEORY
ELEM MUSIC THEORY MUSIC 117
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This 2 page Class Notes was uploaded by Terrance Anderson DVM on Wednesday September 9, 2015. The Class Notes belongs to MUSIC 117 at University of Washington taught by Staff in Fall. Since its upload, it has received 20 views. For similar materials see /class/192005/music-117-university-of-washington in Music at University of Washington.
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Date Created: 09/09/15
Searching Using Controlled Vocabulary The search we conducted in the previous chapter on the aftereffects of traumatic brain injury in children was somewhat successful We were able to retrieve a reasonable set of 72 documents many of which seemed to be relevant to the user s query However it also seemed as though there must be good documents we weren t able to get and many of the ones we did retrieve were not really appropriate including a document on the use of a rating scale of attentional behaviour And yet we tried many good terms from the user including an alternative or two and even tried pearl growing terms from good documents In fact those terms seemed to help quite a bit it is the use of terms like that which we ll discuss in this chapter The use of controlled vocabulary terms subject headings descriptors index terms can often aid in database searching where they are available We ll talk about why they can be so useful in what kinds of situations why they sometimes don t work so well and see some techniques for their use in searching on DIALOG We ll conclude once again with a look at how this works in the Internet environment Why Controlled Vocabulary Searching What do you call people whose profession is to help people learn Are they teachers Instructors Faculty Educators Tutors Docents Professors Lecturers How do you refer to systems that help people find items in a library Catalogs Online catalogs OPACs Online public access catalogs Card catalogs Who wrote Huckleberry Finn Mark Twain Samuel Clemens Samuel Longhorn Clemens Twain Mark Where would you look in a catalog for the author who wrote One Hundred Years of Solitude Under Marquez Gabriel Garcia Or Garcia Marquez Gabriel What do you think of when you read the word mercury A planet A car A god A metal A thermometer These are all illustrations of the need for and advantages of controlled vocabularies and their cousin name authority files Both f these have been developed by librarians over the last few hundred years as ways of making it easier more often than not to find items in a collection Although we ll focus primarily in this chapter on llcontrolled vocabulary in the sense of subject headings for concepts like teacher and llmetal the use of name authority lists for proper names is closely related and a number of databases have both Sometimes they are separate elds sometimes they are combined but the work in uite similar ways IW
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