23 questions

1. How IR in web search is different from other IR systems? Discuss IR architecture with suitable diagram.(2+4)

asked in 2076

2. Assume that document Space is defined by four terms: Network, CSIT, Nepal, TU, and Graduate. 

And we have three documents containing the following terms:

Doc1: CSIT Nepal

Doc2: TU CSIT

Doc3: CSIT TU Nepal

If the Query is "CSIT Nepal", find top 2 document retrieved by Boolean space model.(6)

asked in 2076

1. How IR in web search is different from other IR systems? Discuss IR architecture with suitable example.

asked in 2074

3. What is meant by stop word removal? Explain text normalization with suitable example.(1+5)

asked in 2076

2. Assume that document space is defined by four terms: Network, CSIT, Nepal, TU and Graduate. And we have three documents containing the following terms:

Doc1: CSIT Nepal

Doc2: TU CSIT

Doc3: CSIT TU Nepal

If the query is "CSIT NEPAL", find top 2 documents retrieved by Boolean space model

asked in 2074

4. Suppose that table below list all the documents retrieved by an algorithm. If total number of relevant documents is 6, calculate the value of recall, precision, and F-score.(6)


asked in 2076

3. What is meant by stop word removal? Explain text normalization with suitable example. 

asked in 2074

5. Why query expansion is important? Discuss query expansion techniques with examples.(1+5)

asked in 2076

4. Suppose the table given below lists all the documents retrieved by an algorithm. If total number of relevant documents is 6, calculate the value of recall, precision, and F-score.


sn
Doc ID
relevant
1
D1no
2D2no
3D3yes
4D4no
5D5yes
6D6yes
7D7no
8D8no
9D9yes


asked in 2074

6. Why Hits algorithm is used? Discuss its working with example.(2+4)

asked in 2076

5. Why query expansion is important? Discuss query expansion techniques with examples.

asked in 2074

7. How Bots are different from spiders? Describe simple and multithreded spidering algorithm.(1+5)

asked in 2076

6. Why Hits algorithm is used? Discuss its working with example.

asked in 2074

8. How text categorization is different from clustering? Explain nearest neighbor categorization algorithm.(1+5)

asked in 2076

7. How Bots are different from spiders? Describe simple and multithreded spidering algorithm.

asked in 2074

9. Differentiate collaborative filtering from content based filtering? Discuss content based recommender system with its strengths and drawbacks.(2+4)

asked in 2076

8. How text categorization is different from clustering? Explain nearest neighbor categorization algorithm.

asked in 2074

10. Why TF-IDF weighting is important in information retrieval? Explain with suitable example.(6)

asked in 2076

9. Differentiate collaborative filtering from content based filtering? Discuss content based recommender system with its strengths and drawbacks

asked in 2074

11. How information extraction differs from information retrieval? Discuss role of XML in information extraction.(6)

asked in 2076

10. Why TF-IDF weighting is important in information retrieval? Explain with suitable example.

asked in 2074

12. Write short notes on:(3+3)

a) Latent Semantic Indexing

b) Spiders

asked in 2076

11. How information extraction differs from information retrieval? Discuss role of XML in information extraction.

asked in 2074

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