Isds Ch 5

3328 WordsNov 28, 201214 Pages
Business Intelligence, 2e (Turban/Sharda/Delen/King) Chapter 5 Text and Web Mining 1) DARPA and MITRE teamed up to develop capabilities to automatically filter text-based information sources to generate actionable information in a timely manner. Answer: TRUE Diff: 2 Page Ref: 190 2) A vast majority of business data is captured and stored in text documents that are structured. Answer: FALSE Diff: 2 Page Ref: 192 3) Text mining is important to competitive advantage because knowledge is power, and knowledge is derived from text data sources. Answer: TRUE Diff: 2 Page Ref: 192 4) The purpose and processes of text mining are different from those of data mining because with text mining the input to the process are data…show more content…
A) classification B) natural language processing C) evidence-based processing D) symbolic processing Answer: B Diff: 2 Page Ref: 195 28) Why will computers probably not be able to understand natural language the same way and with the same accuracy that humans do? A) A true understanding of meaning requires extensive knowledge of a topic beyond what is in the words, sentences, and paragraphs. B) The natural human language is too specific. C) The part of speech depends only on the definition and not on the context within which it is used. D) All of the above. Answer: A Diff: 3 Page Ref: 196 29) At a very high level, the text mining process consists of each of the following tasks except: A) create log frequencies B) establish the corpus C) create the term-document matrix D) extract the knowledge Answer: A Diff: 2 Page Ref: 207 30) In ________, the problem is to group an unlabelled collection of objects, such as documents, customer comments, and Web pages into meaningful groups without any prior knowledge. A) search recall B) classification C) clustering D) grouping Answer: C Diff: 2 Page Ref: 211 31) The two main approaches to text classification are ________ and ________. A) knowledge engineering; machine learning B) categorization; clustering C) association; trend analysis D) knowledge extraction; association Answer: A Diff: 2 Page Ref: 211 32) Commercial software tools include all of the following
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