11/24/2012 1 Mohamed A. El-Sharkawi 1 Mohamed A. El-Sharkawi How to do Effective Research Mohamed A. El-Sharkawi Smart Energy Lab (SEL) Department of Electrical Engineering University of Washington Seattle, WA 98195-2500 e-mail: [email protected]web: http://SmartEnergyLab.com Mohamed A. El-Sharkawi 2 Mohamed A. El-Sharkawi Material is Adapted from M.J. Harrold - Georgia Institute of Technology O. Pearce - Texas A&M University M.L. Soffa - University of Virginia P. Raghavan - Penn State University F. Berman - UC San Diego Sharon Bede - Mount Boucherie Secondary School Mohamed A. El-Sharkawi 3 Mohamed A. El-Sharkawi Mohamed A. El-Sharkawi Why do Research? • Enjoyable • Creative • Inventive • Transfer discoveries to benefit society • Enhance the economic viability of nations Mohamed A. El-Sharkawi 4 Mohamed A. El-Sharkawi Motivation: Why should I do research? • Internal drive – Research interest (sense of achievement, curiosity, etc) – Strong ambition (self-expectation) • External drive – Degree and diploma – Parents, teachers, friends – Peer pressure (sense of honor and responsibility) – Small success
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11/24/2012
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Mohamed A. El-Sharkawi 1 Mohamed A. El-Sharkawi
How to do Effective Research
Mohamed A. El-Sharkawi
Smart Energy Lab (SEL) Department of Electrical Engineering
Mohamed A. El-Sharkawi 3 Mohamed A. El-Sharkawi Mohamed A. El-Sharkawi
Why do Research?
• Enjoyable
• Creative
• Inventive
• Transfer discoveries to benefit society
• Enhance the economic viability of nations
Mohamed A. El-Sharkawi 4 Mohamed A. El-Sharkawi
Motivation: Why should I do research?
• Internal drive – Research interest (sense of achievement, curiosity,
etc)
– Strong ambition (self-expectation)
• External drive – Degree and diploma
– Parents, teachers, friends
– Peer pressure (sense of honor and responsibility)
– Small success
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Beginning with the End in Mind
Plan for a research career not a research
project!
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Key Steps
Select a Research Topic: – An interesting research direction – Matters to society
Form Hypotheses: – Hypotheses that can be scientifically evaluated – Learn how to perform the evaluation of existing
work
Conduct Research:
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Key Steps
Evaluate your Work: – Honestly
Report your Work: – To the world
Transfer your Technology: – Commercialize your results – Mentor others to continue in the same direction
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Select a Research Topic
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Persevere—You Will Find a Topic
“ Every morning I would sit down before a blank sheet of paper. Throughout the day, with brief interval for lunch, I would stare at the blank sheet. Often when evening came it was still empty… It seemed quite likely that the whole of the rest of my life might be consumed in looking at that blank sheet of paper…” (Bertrand Russell, autobiography)
Went on to publish (with Whitehead) the 3-volume Principia Mathematica
Remember that drive distinguishes the great scientists (but brains help …)
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Mohamed A. El-Sharkawi
Choosing a Research Area
Criteria Exciting and interesting to you Address important problem Research type is suitable to you
Ways to identify a research area Take courses, attend seminars and colloquia Talk to researchers, industry and government Consider both applied and theoretical areas Read widely Learn about yourself, what you like, etc. Solve some preliminary research problems
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The Right Problem and the Right Way to Ask Problem
Asking the problem right can lead to asking the right problem
• Can we predict stability?
• Can we predict stability with the transient model?
• Can we predict stability with user experience?
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Research Problem Selection
• Good research largely depends on the selected problem
– 50% of a research job is done when you find a good problem.
• How to evaluate the research problem?
– Is it an old problem or a new problem?
• Usually, new problems have more opportunities
– Is it a significant problem?
• Practically important yet technically challenging
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Standard Pitfalls
Solving the World
– do not try to solve all problems in the world
– set yourself a high but well focused goal
Computer Bum
– do not rush to simulate the problem or solution
– think first about what you want to achieve
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Standard Pitfalls for Graduate Students
• Ivory Tower
– do not shut yourself in an ivory tower to do your research
– talk to people, with colleagues, professors, people with similar interests
– Talk to people who know nothing about your research
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Standard Pitfalls for Graduate Students
• Misunderstood Genius
– do not think that what you want to achieve or what you have done cannot be understood by anybody
– you should be able to explain to any person
• what you are working on
• what it is good for
• what your contribution is
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Standard Pitfalls for Graduate Students
• Ambition Paralysis
– do not wait to have the "great" idea
– start from small ideas
– pick an example and try to solve it
– try to apply the solution to some other examples.
– Sooner or later the "big" idea will come.
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Good versus Bad Research Problems
• Good research problem – After the research, more people will be doing it –
you opened the door
– After the research, nobody can improve it – you closed the door
• Bad research problem – Nobody will follow the research
– Nobody really cares about the research
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Good versus Bad Research Problems
Research subject hotspot index HI for a large sample:
𝐻𝐼 =𝑓
𝐹
f: No. of top papers
F: No. of total papers
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Ambition
• Aim high
– Do not patch a small hole left by leading researchers
– Find a more fundamental problem which may have a long impact
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Identifying a Research Problem
Read papers • Keep an annotated bibliography of papers
• Main contribution • Open questions • How it relates to your interests, work
• Reading tree • Use papers’ references to get to original papers
Talk to experts
• Visit universities, factory and research centers • At conferences and workshops
Question previous works’ assumptions
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Identifying a Research Problem
Consider topics carefully
Thoroughly understand the problem
Break problem into manageable pieces
Develop methods that work for you
• Set aside blocks of time to focus on research • Work deeply and broadly • Work consistently on the problem
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Research Models
• Solution looking for a problem
• Problem looking for a solution
• New solution to old problems (classical problems)
• New problems
• New areas
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Model 1: Mission Project
• Industrial needs
– Global problem (worldwide needs)
– Local problem (Country needs)
• Warnings:
– Require contacts with industry
– It may not be a topic worthy of a PhD thesis
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Model 2: Apprentice
• Your advisor has a list of topics
• Can save you a lot of time/anxiety
Warnings:
You may work on something you find boring, badly-motivated,…
Several students may be working on the same/related problem
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Model 3: A Flash of Brilliance
• You wake up one day with a new insight/idea
• New approach to solve an important open problem
Warnings:
This rarely happens
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Model 4: Projects
• You take a project course that gives you a new perspective
• Combines your research project with the course project
Warnings:
This may be too incremental
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Model 5: n-paper = Thesis
• You work on a number of small topics that turn into a series of conference papers
Warnings:
May be hard to tie into a thesis
May not have enough impact
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Model 6: Innovations are on Borders
• Other disciplines may have problem that can be solved by your ideas
• Apply your insight to the new filed
Warnings:
You need to read a lot in different field to find a connection
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Research Environment
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Groups
• A group can be a blessing – More interactions (now) and networking (future)
• Senior students can be very helpful to junior students – Experience sharing & encouragements
– More tolerant to mistakes
– More accessible
• Each colleague is a teacher
• Each group has its own culture
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Working on a Research Team (or not)
Why work on a team (in a group)? • Part of a larger project (less common in more theoretical areas)
• Research often a collaborative, social process
• Helps you to learn to communicate ideas
• Try new ideas, practice talks, get feedback on papers, learn to advise other students, etc.
While working on a research team • Carve out your problem in the group
• Be generous with giving credit to others, but stand up for your accomplishments
• Your role in the group will change as you progress
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Advisor
• Role of Advisor – Joint decision on problem selection
– Set up the research standard
– Help when students get stuck • Find out why
• Re-directing
• Feedback on research results – Positive and negative feedback
• Help in oral presentation and written reports
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Advisor
• Talk to potential advisors and their advisees
– What are their projects?
– How much time do they spend with students?
– Do they have group and/or individual meetings?
– How long to return written materials?
– How much freedom do they give students?
– How long does it take students to finish?
– What is the placement of past students?
– Does the adviser publish a lot with students? What is the order of names?
– Who presents the papers that are co-authored?
– Do they have research assistantships?
– Do you feel comfortable with this person as your advisor?
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Try out Advisor
• Take one of their courses
• Work with them on an independent study
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Read, Read and Read
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Levels of Reading
Outer Circle
Middle
Circle
Inner Circle
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Outer Circle
Articles about the surrounding problem
• read the introductory material
• read surveys on the subject
• read some papers to become familiar with the topic
– read the abstract
– read the intro
– conclusions
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Middle Circle
Articles about the particular type of problem you have in mind
– read as for Outer Circle
– mark candidates for Inner circle
– collect further readings from references
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Inner Circle
Articles about the specific approach you consider
• read the entire article, then read it again
• select key articles for your work and read them again (a 3rd time)
• search applications based on the approach (you should do this for the middle circle also)
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Guide to reading
For every article you have read (regardless of the circle) do:
• Reference data: authors, journal, pages, etc., so as to able to refer it afterwards
• Make notes about the content of every article – will help you to remember and to understand the paper
• length of notes should depend on the circle level
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Research Process
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Main Components of Research Process
• Focus
• Find and filer
• Work with information
• Reflect
• Communicate
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• What is my research purpose?
• What are my research challenges?
• What are the critical questions?
• Who is my audience?
• What do I know?
• What do I need to know?
• What could my product be?
• How will I plan my time?
Focus
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Find and Filter
Consider the sources that are available to you.
• Locate different types of resources.
• Decide which resources might be suitable.
• Revise research questions if necessary.
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Find and Filter
Evaluate the resource for
• Authority
• accuracy
Make
• notes and summaries
• organize information
• record your opinion
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Work with Information
• Read, view, listen.
• Interpret, record, and organize.
• Look for patterns, make connections.
• Check for understanding.
• Review, revise, reorganize, edit.
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Work with Information
• Instead of copying it out, interpret the data
• Synthesize and analyze the ideas you find
• Ask more questions
• Look for deeper understanding
• Organize, reorganize, and reshape the ideas to make sure that the meaning is well captured.
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Communicate
• Prepare final results
• Share ideas, knowledge, product.
• Begin to put all the research together
• Effectively communicate what you have found in order to demonstrate how much you have done and learned
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Writing
• Critical to the sale of your ideas/results
• Paper organization
– Proper arrangement of texts, figures and tables
• Multi-pass writing style
– 1st pass: Detailed outline
– 2nd pass: Rapid writing
– 3rd pass: Fine Fine-tuning
– 4th pass: cross cross-reading
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