ISTE Workshop Introduction to Research Methodologies Tips ... · How NOT to write the Literature...
Transcript of ISTE Workshop Introduction to Research Methodologies Tips ... · How NOT to write the Literature...
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IIT Bombay 1
ISTE Workshop
Introduction to Research Methodologies
Sahana Murthy
IIT Bombay
June 25 – July 4, 2012
Tips on Literature Review
Video: http://www.it.iitb.ac.in/nmeict/eVideos/IRM_Main/content/content.html, Session 12.
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IIT Bombay 2
What is a literature review
• Summary of related work
• Descriptive and evaluative
• Analytical in nature
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IIT Bombay 3
Why literature review
• Need to give credit to others’ work
• Giving credit is the “law”!
• Gives background information to your work
• Situate your work in the broader context
• Progress of scientific knowledge
– Build new work on old work
– Compare, extend, contrast …
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IIT Bombay 4
When should I do the literature review
At the beginning, when you start looking for a problem
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IIT Bombay 5
When should I do the literature review
At the beginning, when you start looking for a problem
In the middle, once your work is under way
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IIT Bombay 6
When should I do the literature review
At the beginning, when you start looking for a problem
In the middle, once your work is under way
Towards the end, when you have your results
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IIT Bombay 7
When should I do the literature review
At the beginning, when you start looking for a problem
In the middle, once your work is under way
Towards the end, when you have your results
Not a distinctive, standalone step in research.
Iterative.
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IIT Bombay 8
What type of papers should I look for?
• Engineering/ scientific research papers
• Published research papers in “established” journals, peer
reviewed conferences
• Survey or review articles
• Chapter in an edited book on a research topic
• Avoid websites containing no source information
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IIT Bombay 9
What type of papers should I look for?
• Engineering/ scientific research papers
• Published research papers in “established” journals, peer
reviewed conferences
• Survey or review articles
• Chapter in an edited book on a research topic
• Avoid websites containing no source information
• Recent papers (last 5 years, 10 years)
• Classic or seminal (even if old)
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IIT Bombay 10
Where should I look for papers?
• Databases and indexes
– INSPEC
– Web of Science
– IEEE Xplore
– Compendex
– Scifinder
– SCOPUS
Check your field
• Journal webpages
• Conference webpages
• Authors’ webpages
• Library
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IIT Bombay 11
Where should I look for papers?
What about Google?
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IIT Bombay 12
Where should I look for papers?
What about Google?
Google Scholar search more appropriate than
simple Google search.
Also try CiteSeer
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IIT Bombay 13
What information should I track
BIBLIOGRAPHIC INFORMATION
• Title
• Authors
• Year of publication
• Source – journal / proceedings / book
– Name
– Page numbers
– Publisher
• ISBN numbers of books
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IIT Bombay 14
How should I select papers to read?
SOME TIPS
• Ask your guide
• Survey / review articles are a good starting point
• Try to identify seminal or key papers. For example, if several
current papers on an article point to a previous article on a
specific point.
• Locate follow-up work from key paper.
• Follow references from within the first interesting / relevant
paper you read.
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IIT Bombay 15
What to do if I find too few sources
• Discuss with expert, guide
• Look for related topics, synonyms
• Broaden scope of topic a little, then narrow back
• Look harder !
Do not be hasty in concluding that “No work has been done in
this topic”
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IIT Bombay 16
What to do if I find too many sources
Plan to scope or scale down your search
• Restrict by year (recent)
• Restrict by source (only two most well-known journals in field)
• Restrict by topic (further narrow topic)
Again, an expert’s help is valuable.
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IIT Bombay 17
How to report literature search
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IIT Bombay 18
According to Paper1, clickers were found to be improve student
motivation and attendance.
In Paper2, authors used clickers in a CS programming class of 120
students. They found that student learning improved. The average final
exam score was XX %.
Paper3 reported that students liked using clickers in class since it
improved interactivity. This study was done in a health science class.
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IIT Bombay 19
How NOT to write the Literature Review
/ Related Work section
According to Paper1, clickers were found to be improve student
motivation and attendance.
In Paper2, authors used clickers in a CS programming class of 120
students. They found that student learning improved. The average final
exam score was XX %.
Paper3 reported that students liked using clickers in class since it
improved interactivity. This study was done in a health science class.
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IIT Bombay 20
How NOT to write the Literature Review
/ Related Work section
A literature review is not:
• a descriptive list of papers
• a summary of one paper after another
According to Paper1, clickers were found to be improve student
motivation and attendance.
In Paper2, authors used clickers in a CS programming class of 120
students. They found that student learning improved. The average final
exam score was XX %.
Paper3 reported that students liked using clickers in class since it
improved interactivity. This study was done in a health science class.
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IIT Bombay 21
How should I write the Literature
Review / Related Work section
• Identify themes, factors, or variables relevant
to your problem.
One way to organize - table classifying related
work on the basis on various categories that
you need to devise.
Example – litsurvey1.
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IIT Bombay 22
How should I write the Literature
Review / Related Work section
• Analyze on the basis of categories,
strengths& weaknesses
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IIT Bombay 23
How should I write the Literature
Review / Related Work section
• Analyze on the basis of categories, strengths& weaknesses
1) Clickers in face to face classrooms are highly effective to improve attendance, more active participation in class, increased collaborative activities and better learning.
2) Work related to improving interactivity in distance education:
• Video and audio conferencing with 2-way interactivity.
Benefits – visual cues possible, feels like real interaction
Drawbacks – Cumbersome to use, instructor cannot judge if
students are following lecture
• “A mouse on every desk” by Microsoft Research
Benefits – highly interactive
Drawbacks – expensive
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IIT Bombay 24
How should I write the Literature
Review / Related Work section
Provide synthesis of the reviewed literature.– What are existing solutions?
– What are common features?
– How do they compare? Use pie-charts, bar charts,
graphs etc. to represent your analysis.
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IIT Bombay 25
How should I write the Literature
Review / Related Work section
• Identify the gaps in existing work.
In most current solutions aimed at diminishing the physical
gap between the instructor and the students in the virtual
classroom, the instructor does not have sufficient means to
gauge the comprehension level of the class in real-time.
No one has used clickers in distance education so far.
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IIT Bombay 26
How should I write the Literature
Review / Related Work section
• Identify the gaps in existing work.
In most current solutions aimed at diminishing the physical
gap between the instructor and the students in the virtual
classroom, the instructor does not have sufficient means to
gauge the comprehension level of the class in real-time.
No one has used clickers in distance education so far.
Leads to
clear need for your research / thesis
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IIT Bombay 27
Points to note
Be aware of disciplinary conventions
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IIT Bombay 28
Points to note
You have to write about what has already been
written, BUT write something original.