خود استنادی یکی از دلایل اخراج مجلات از موسسه ISI
Title suppression from journal citation reports
مجلاتی که از نویسندگان می خواهند به یک یا چند مقاله از همان مجله استناد دهند، توسط موسسه ISI شناسایی و از لیست مجلات کنار گذاشته می شوند.
Transparency and Accountability
• The Journal Impact Factor provides an important measure of a journal’s contribution to scholarly communication, and its distortion by an excessive concentration of citations is a serious matter.
• Titles are suppressed from JCR based on analysis of the last year of citation data and are reevaluated annually.
• Thomson Reuters does not assume motive on behalf of any party
Journal Self-Citation
Suppression of individual journals
Data considered:
Total citations (TC)
Journal Impact Factor (JIF)
Rank in category
% of journal self-citations in Journal Impact Factor numerator
Proportional increase in Journal Impact Factor with/without journal self-citations
Effect of journal self-citations on rank in category by Journal Impact Factor.
Journals in bottom 10% ranking by TC and/or by JIF are not suppressed
Suppressed journals represent extreme outliers in citation behavior
Science Edition and Social Sciences Edition are analyzed separately
Journals are suppressed for one year, and re-evaluated with the next year’s data.
Citation Stacking
Donor and Recipient journal pair suppression
Data considered:
Donor as % of Recipient’s Total Citations
Donor as % of Recipient’s Journal Impact Factor numerator citations
Concentration of citations exchanged into Journal Impact Factor numerator
Identification of individual item(s) in Donor Journal with near-exclusive reference to Recipient journal(s)
Journals in bottom 10% ranking by TC and/or by Journal Impact Factor, are not suppressed
New titles, where citation activity is naturally concentrated, are not suppressed
Suppressed journals represent extreme outliers in citation behavior
Science Edition and Social Sciences edition are analyzed separately
Donor and Recipient journals are suppressed for one year, and reevaluated with the next year’s data.
منبع: http://thomsonreuters.com/
نویسنده: مجید عقلمند (مدیر دانشیار)