Question 1
(a)
Explain the nature of unstructured and semi-structured text.
3 Marks
(b)
What is inverted index and Boolean queries in IR?
4 Marks
(c)
What is Index compression? Explain lexicon compression and postings lists compression.
7 Marks
Gujarat Technological UniversityWinter 2023 Examination
GTU 3170718 Information Retrieval (IR) Winter 2023 Paper Solution & PDF
B.E. · Computer Engineering · Semester 7 · Subject Code: 3170718
Total Marks70 MarksExternal theory exam
Passing Marks23 Marks33% minimum cutoff
Exam Duration2.5 Hours10:30 AM – 1:00 PM
Paper Structure5 QuestionsWith internal OR choices
Question 2
(a)
Describe Zipf's Law.
3 Marks
(b)
Differentiate between dynamic indexing and positional indexes.
4 Marks
(c)
Discuss the Boolean retrieval in detail with diagram.
7 Marks
OR OPTION
(c)
What is text encoding? Explain tokenization and stemming with example.
7 Marks
Question 3
(a)
Explain n-gram indexes.
3 Marks
(b)
Discuss the Postings size estimation.
4 Marks
(c)
Describe how to perform document length normalization.
7 Marks
OR OPTION
(a)
Explain Vector space scoring.
3 Marks
(b)
Describe any two retrieval models in details.
4 Marks
(c)
Describe relevance feedback and query expansion with example.
7 Marks
Question 4
(a)
What is the need of Filtering against spamming?
3 Marks
(b)
Write Short notes on Support vector machine classifiers.
4 Marks
(c)
What is k-means clustering? Explain with suitable example.
7 Marks
OR OPTION
(a)
Define the terms: TFIDF, Okapi, and F-measure.
3 Marks
(b)
Write Short notes on: kappa measure and interjudge agreement.
4 Marks
(c)
Describe Vector space classification using hyper planes.
7 Marks
Question 5
(a)
What is web crawling?
3 Marks
(b)
Describe Cross language information retrieval.
4 Marks
(c)
Describe Hierarchical agglomerative clustering with suitable example.
7 Marks
OR OPTION
(a)
Define the terms Page Rank, HITS and Boosting.
3 Marks
(b)
Which is the fastest search engine for retrieval of information? Justify.
4 Marks
(c)
Explain XML retrieval? Also write down the major challenges in XML retrieval?
7 Marks
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About this Examination Paper & Attribution
Official Gujarat Technological University (GTU) examination paper and step-by-step solutions for Information Retrieval (IR) (Winter 2023, B.E. · Computer Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.