آشنایی با مفاهیم و کاربرد علم سنجی
برنامه کارگاه امروز !
اطلاع سنجی و علم سنجی، مفاهیم و کاربرد
معرفی خلاصه شاخص های علم سنجی
آشنایی با نمایه نامه های استنادی
جستجو و تحلیل استنادی در Scopus و ISI Web of Science
ضریب تاثیر مجلات Impact Factor
معرفی Journal Citation Report (JCR)
معرفی شاخص H-Index
Scientometrics (bibliometrics)
Scientometrics (bibliometrics) – The measurement of scientific output activity through statistics on academic publications
The scope of bibliometrics includes:
“all quantitative aspects and models of science communication, storage, dissemination and retrieval of scientific information”.
تعریف علم سنجی
آن دسته از روش های کمّی را که به تحلیل علم بعنوان یک فرآیند اطلاعاتی تاکید دارند ”علم سنجی“ می نامند.
”علم سنجی“ به تعبیری ساده تر عبارت است از دانش اندازه گیر علم.
Scientometrics
informetrics
bibliometrics
scientometrics
webometrics
cybermetrics
Informetrics
broader than bibliometrics and scientometrics
Informetrics examines patterns that show up not only in publications but also in many aspects of life as long as the patterns deal with information.
e.g. Willis Law deals with the relationships between the age of a group of the animal and plant species and the habitation of these species
its concepts, formulas applicable to publication patterns.
Bibliometric data used for..
Scientific output evaluation
Impact
Citations
History of science
Publication strategies
Science policy; resource allocation
Collection management
Sociology of science
Information organization
Information management & utilization
Webometrics
Informetrics
Mathematics/Physics
Library and
Information Science
Sociology of science
History of science
Economics
Scientific information
Services for
Research in
Librarianship
Science policy
Research management
Life sciences
Links of bibliometrics with related research fields and application services
International
National
Institutional
Faculty
Researchers
Grant Allocations
Policy Decisions
Benchmarking
Promotion
Collection management
Funding allocations
Research
Why do we evaluate scientific output
SPLIT IN NEEDS
SPLIT IN NEEDS
Adopted from: “Islam and Science: the data gap”, Nature, 2006, 444(7115):26-7
اینفوگراف وضعیت علمی ایران در دنیا براساس مقالات سال 2011
رشد 11 برابری شمار مقالات ایران در مقایسه با میانگین جهانی
www.science-metrix.com
مقایسه فراوانی مقالات و ارجاعات صورت گرفته به مقالات منتشرشده دانشگاه علوم پزشکی تهران و دانشگاه تهران با دانشگاه های رتبه یکصدم و دویستم دنیا در مجموعه Scopus در رتبه بندی سال 2009 تایمز THS-QS
Databases
General Databases (Comprehensive OR Core Databases)
Specialized Databases (Subjects Specified Databases)
General Databases (Comprehensive OR Core Databases)
Medical Sciences
Medline
Embase
All Sciences
Web of Sciences
Scopus
Web of Science
“Web of Science” is the database name provided by “Institute of Scientific Information” famous in our country as “ISI”.
The company name now is Thomson Reuters, No ISI available there.
The Web of Knowledge is a portal in which you can search multiple ISI databases including Medline, Web of Science, Current Content, Biological Abstract & others.
Biological Abstracts
International Pharmaceutical Abstract
PsychInfo
CINAHL
Chemical Abstracts
Agricola
Econlite
Specialized Databases (Subjects Specified Databases)
Citation Databases
Web of Science
Scopus
Google Scholar
(http://scholar.google.com)
3 Types of Citation Data Indexes
Articles
Citation Impact
Authors
Number of papers (Quantity)
Number of Citations (Quality)
Average number of citations/article
h-index & g-index (Quantity & Quality Both)
Journals
Journal Impact Factor
h-index
تنوع آدرس دهی مقالات دانشگاه های علوم پزشکی تیپ یک کشور در ISI Web of Science
منبع:
F Aminpour, P Kabiri, MA Boroumand et al. Iranian Medical Universities in SCIE: evaluation of address variation. In Scientometrics. (2010) 85: 53-63
Other Tools Available
Other bibliometric indicators:
Journal Citation Reports (JCR)
Other indicators databases (national, essential, university, institutional)
ISIHighlyCited.com
Scopus
Positioning itself as an alternative to ISI
More journals from smaller publishers and open access (+19,500 journals; +1000 conf proceedings)
Source data back to 1960.
Excellent for physical and biological sciences; poor for social sciences; does not cover humanities or arts.
Better international coverage (60% of titles are non-US)
Back to 1996 ! (e.g. citation data for the last decade only)
Easy to use in searching for source publications; clumsy in searching cited publications.
Citation tracker works up to 1000 records only.
Google Scholar
Better coverage for all citations as it retrieve web !
More coverage of references also gray literature !
Coverage and scope?
Inclusion criteria?
Very limited search options
No separate cited author search
Back to 1990 NOT more !
Free!
Web of Science (Now Thomson Reuter ISI)
Covers around 11,000 journal titles and 110,000 conference proceedings & alos 200 book series divided between SCI, SSCI and A&HCI.
Over 40 million records!
Electronic back files available to 1900 for SCI and mid- 50s for SSCI and mid-70s for A&HCI.
Very good coverage of sciences; patchy on “softer” sciences, social sciences and arts and humanities.
Full coverage of citations.
WoS and Scopus: Subject Coverage (% of total records)
WoS SCOPUS
Google Scholar ?
Web of Science
If a journal is in Web of Science, it means it should have Impact Factor & vice versa.
Don’t confuse Web of Sciences Journals with ISI Master list Journals !
Web of Science indexed about 11,000 Journals while ISI Master List 15,000 Journals.
The Journal Impact Factor
The Journal Impact Factor is calculated for those journals only which are indexed & included in Web of Sciences Databases, NOT more !
The database which contain the Journal Impact Factors is Journal Citation Report abbreviated JCR.
What is Journal Impact Factor?
The average citation frequency for articles published in a journal, or how many times, on average, during the study year the articles that appeared in the 2 preceding years of that journal received citations in other (ISI) indexed journals only.
Impact Factor Calculation
Citations in the current JCR year to articles published in the previous two years divided by the number of articles published in the previous two years.
Citations in 2007 to articles published in 2005 + 2006
IF=
Total 2005 + 2006 Papers
2007
2006
2005
Cited reference – published in 2007
Immediacy Index
Impact Factor
All Previous Years
Cited ½ Life
How to Find Impact Factors?
Directly from Journal Citation Report Database through ISI.
Using the Excel Datasheets, prepared especially for this matter.
How to Get your related Journals Impact Factors?
Click Here for 2011 IF !
Then click on the
In the upper box of the brought page, select your subject categories of Interest.
Then click on the once again.
In the Journal list shown, select the “Sorted by” Option for “Impact Factor” & then click
2010 Impact Factors
2011 Impact Factors
شاخص جدیدی از شاخص های علم سنجی است. این شاخص در سال 2005 میلادی توسط Jorge Hirsch در دانشگاه کالیفرنیا ابداع شد. این شاخص در واقع با هدف ارزیابی کیفی اثر و ارزیابی کمی برون داد پژوهشی محققین ابداع شده است.
The h-index
مفهوم H-Index عبارت است از تعداد مقالات نویسنده که تعداد ارجاعات برابر با h و یا کمتر از آن دارند. مثلا چنان چه H-Index محققی 5 باشد، مفهوم آن این است که این محقق 5 مقاله منتشر شده دارد که هرکدام حداقل 5 استناد یا Citation دارند.
امروزه این شاخص معادل Impact Factor برای محققین محسوب می شود.
The h-index
H-index was born !
We need an Index both to include quantity & also quality of an authors' paper
Productivity
Impact
Not affected by “big hits”
Not affected by “noise”
The H-index: a definition
‘The H-index is the highest number of papers a scientist has that have at least that number of citations.’ Nature (2005)
H-index Concept through its Graph
The h – Graph
How to calculate the h-index?
You can calculate the h-index through the following citation databases:
Web of Science
Scopus
Google Scholar
(http://scholar.google.com)
بزرگترین شاخص h در دنیا مربوط به حوزه علوم زیستی برابر با 197 و بزرگترین شاخص h محققان ایران جناب آقای دکتر شمسی پور استاد شیمی دانشگاه رازی کرمانشاه با عدد h برابر 47 می باشد.*
* مربوط است به سال 1390
The highest h-index in the World & Iran
بزنید ! Email اگر میل داشتید
kabiri@tums.ac.ir