202 Final
FA12 LIBR-202 Info Retrieval 1415
Attempt 1
Written: Dec 8, 2012 4:21 PM - Dec 8, 2012 8:19 PM
Submission View
released: Dec 11, 2012 10:53 PM
Final Exam
0 / 3 points
Question 1
When discussing precision vs. recall, precision is the ratio of the number of relevant, retrieved
documents to the __________.
a) total number of relevant documents
b) total number of documents
c)
total number of documents
retrieved
d) none of the above
3 / 3 points
Question 2
When discussing precision vs. recall, recall is the ratio of the number of relevant, retrieved
documents to the __________.
a) total number of relevant documents
b) total number of documents
c)
total number of documents
retrieved
d) none of the above
3 / 3 points
Question 3
Controlled vocabulary can serve the following purpose(s):
a) to minimize ambiguity
b) to provide an accurate indication of subject content
c) to provide subject terms that are independent of their context
d) to mitigate problems of synonymy and homonymy
e) a, b, & c
f) a, b, & d
g) a, b, c, & d
Question 4
Controlled vocabularies are consistent from one database to another.
3 / 3 points
True
Fals
e
Question 5 4 / 4 points
A thesaurus that indicates relationships among terms has a
___syndetic___
structure.
0 / 4 points
Question 6
A descriptor entry in a thesaurus typically includes information about related terms. For
example: 'B' to indicate a broader term, 'N' for a narrower term, and 'R' for a related term.
Which of the following is not a good example of this type of entry in a thesaurus?
a) Term:Artists; B:Population groups; N:Musicians; R:Art
b) Term:Pasta; B:Italy; N:Garlic bread; R:Soup
c) Term:Car; B:Vehicle; N:Sedan; R:Truck
d) Term:Pizza; B:Italian food; N:Pepperoni pizza; R:Pasta
e) Term:Automobile; B:Vehicle; N:Automobile travel; R:Car
4 / 4 points
Question 7
Who does the 'coordination' of pre-coordinated terms?
Answer:
___indexers___
4 / 4 points
Question 8
Who does the 'coordination' of post-coordinated terms?
Answer:
___user___
0 / 3 points
Question 9
Each post-coordinated term typically represents a single concept.
True
Fals
e
Question 10 3 / 3 points
LCSH (Library of Congress Subject Headings) is the largest implementation of a pre-coordinated
controlled vocabulary.
True
Fals
e
Question 11 5 / 5 points
Geographic subdivisions are commonly used in the LCSH controlled vocabulary. Name three (3)
other types of subdivisions used in LCSH and provide an example for each.
Topics - Climate
form -what type of material it is
time period - B.C. E
The correct answer is not displayed for Long Answer type questions.
3 / 3 points
Question 12
Controlled vocabulary is considered to be the oldest means of organizing documents.
True
Fals
e
Question 13 3 / 3 points
An IRS may use controlled vocabulary or classification, but not both.
True
Fals
e
Question 14 0 / 3 points
Which of the following is not true about controlled vocabulary terms?
a) terms rely on a thesaurus to express relationships between terms
b) terms indicate the structure of the vocabulary
c) terms are tied to an alphabetic arrangement
d) terms represent the aboutness of documents
e) terms help disambiguate the language used
Question 15
Which of the following is not a type of classification scheme?
a) simple
3 / 3 points
b) sequential
c) heretical
d) faceted
hierarchica
l
4 / 4 points
Question 16
___hierarchical___
classification is the most common type of classification scheme.
e)
Question 17
Classification can facilitate browsing.
3 / 3 points
True
Fals
e
Question 18 3 / 3 points
Which of the following is not true about a "sequential" classification scheme?
a) no relationship exists among the different classes
b) classes are arranged in a logical sequence
c)
classes organized in chronological order are an example of a sequential
classification scheme
d) a notation system is used that aligns with the sequence
5/5
points
Briefly describe how classes are formed in a faceted classification scheme. Provide an example.
Write no more than six sentences.
Question 19
In the faceted classification scheme classes are formed by individual subjects that are stand alone
or independent. Classical music is the classification and the classes would be broken down by
type of music and time period of instruments.
The correct answer is not displayed for Long Answer type questions.
Question 20
The Library of Congress Classification system
3 / 3 points
a) relies less on number-building mechanisms than Dewey
b) was created by a team that included subject matter experts
c) uses notation that starts with letters
d) may use decimal numbers and other codes to help define narrow topics
e) originated over a hundred years ago
f) a, b, & c
g) a, b, c, & d
h) all of the above
Question 21
3 / 3 points
DDC and LCC are examples of enumerative classification.
True
Fals
e
Question 22 4 / 4 points
___Colon___
Classification is a faceted system created by S.R. Ranganathan that covers all fields of
knowledge.
Question 23
4 / 4 points
According to Rowley, bibliographic classification may be said to have two primary purposes:
a) creating a general sense of order and keeping librarians out of trouble
b)
making retrieval through browsing possible and linking the item’s physical
location to its catalog entry
c) creating indexes of keywords and inverting those indexes for searchability
d) speeding up data entry for the indexers when they create terms in the thesaurus
3/3
Question
points
24
What are negative aspects of controlled vocabulary and classification for providing subject
access?
a) creating and maintaining them is costly
b) human indexing is time-consuming
c) many users do not use them effectively
d) they are not effective for handling synonymy
e) a, b, & c
f) a & b
g) all of the above
Question 25
4 / 4 points
According to Rowley, a thesaurus must be integrated into the searching of an IRS. This means
the searcher must be able to do the following:
a) browse the thesaurus
b) search the thesaurus
c)
use the thesaurus terms in the
search
d) add new terms to the thesaurus
e) all of the above
f) a, b, & c
3 / 3 points
Question 26
Natural language search systems rely on ______ for relevant results.
a) a sophisticated search engine
b) a lot of textual content
c) super-smart searchers with MLIS degrees
d) enhancements like stemming and term weighting
e) a & c
f) a, b, & d
g) all of the above
Question 27
Stemming
0 / 3 points
a) is done "behind the scenes" by the indexing and query processing system
b) uses an algorithm that reduces words to their semantic root
may be applied to words as they are indexed and/or to query words during a
search
allows a searcher to specify that all terms beginning with a certain wordstem
d)
be retrieved
c)
e) all of the above
f) a, b, & c
g) a & b
Question 28
Truncation
a) makes it possible for a searcher to view the database index
0/3
points
b) allows a searcher to aggregate terms that begin the same but end differently
c) automatically retrieves semantically related words
d) retrieves related words from the database thesaurus
e) all of the above
f) a, b, & c
g) c & d
3 / 3 points
Question 29
Term weighting may be accomplished using a variety of factors. Commonly used factors include
a) number of occurrences of the term within the document
b) number of documents that contain the term
c) number of documents in the database
d) all of the above
2 / 4 points
Question 30
Indexing and searching are not mirror images of each other but differ in significant ways. For
example,
___indexer___ (50 %)
describe what they have in hand but
___user___ (the searcher, searchers, the user, users)
must describe something they do not know and may not even be clear about what they need.
Question 31
5 / 5 points
Describe three of the rules you learned about for the wording of descriptors and post-coordinated
terms. For example: avoid standalone adjectives. Write no more than six sentences.
1. Use nouns and noun phrases such as women workers or prisoners of war.
2. Use the plural number for 'count' nouns to tell how many such as trees or statues.
3. Use common spelling for words like color instead of colour
The correct answer is not displayed for Long Answer type questions.
0 / 3 points
Question 32
Which of the following is not true about the information seeking process?
a) the searcher's understanding of the information need evolves
b) the searcher usually knows the database's indexing language
c) the process of defining the problem never ends
d) iteration may happen at any point
0 / 3 points
Question 33
Analytical searching is typically characterized by an informal approach and no pre-search
planning.
True
Fals
e
Question 34 0 / 3 points
Browsing behavior depends more on recognizing relevant information when it's encountered
than on formulating queries.
True
Fals
e
Question 35 4 / 4 points
As a factor in studies of relevance,
___recall___ (50 %)
may be thought of as measuring aggregation. Likewise, precision may be thought of as
measuring
___discrimination___ (50 %)
.
4 / 4 points
Question 36
In the lingo of interface design, a grayed-out menu option in a software application is an example
of
___Constraints___ (50 %)
. Similarly, a cursor blinking in an input box is an example of
___affordances___ (50 %)
.
3 / 3 points
Question 37
Collaborative tagging can be effective for enhancing findability. What is required for it to work
well?
a)
large number of contributing
users
b) active user base
c) easy ways to create tags
d) all of the above
Question 38
3 / 3 points
Which of the following is not an important element of good user interface design?
a) Mappings that create a mental link between a user’s actions and the response.
b) High visibility of the various options available to the user.
c) Detailed explanations of how the underlying system actually works.
d) Conceptual model for the user.
e) Feedback that lets the user know about the results of his/her actions.
Question 39
3 / 3 points
What type of search engine tries to make sense of search results based on context?
a)
federated search
engine
b) metasearch engine
c) semantic search engine
d) garage search engine
e) synthetic search engine
8 / 8 points
Question 40
What was your favorite Readings Topic Discussion forum during the course and why? How did
it inform your understanding of information retrieval? Write at least 3 sentences and no more
than 6 sentences.
I think my favorite reading topic discussion was reading topic 2 - finding things. I enjoyed seeing
how my fellow classmates handled in frustration while seeking information. I knew I was not
alone! I discovered through this reading topic that if I do not succeed the first time, then take a
break and try again with a fresh preceptive.
The correct answer is not displayed for Long Answer type questions.
Question 41
8 / 8 points
Describe the most important concept you have gleaned from the course content from the second
half of the semester. It may be easiest to consider something you learned while working on
Assignment 2. (It might even be the thing you struggled with the most!) Try to choose something
you believe will stay with you after the end of the MLIS program.
The most important concept I gleaned from this course content was the evaluation process of
databases. After creating the database and entering the postco records, I found the retrieval
evaluation challenging. I was not able to get the results I thought I should get, this made me
realize the important of proper evaluation in order to make things work properly not only for the
indexer but the user as well.
The correct answer is not displayed for Long Answer type questions.
Attempt Score:
Overall Grade (highest attempt):
120
(80.00
/
%)
150
120
(80.00
/
%)
150