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Explore how metrics measure scientific impact, evaluate research, and inform decision-making. Learn about Turkey's research growth and impact. Discover tools for effective research evaluation.
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Information Retrieval to Informed Actionwith Research Metrics Thomson Scientific Research Services Group 2007
Challenge of Managing and Evaluating Research • Science is very dynamic and growing exponentially • Research is happening in a global and multidisciplinary context • Emerging fields make it difficult to determine relevancy • Selectivity becomes more challenging, e.g. how to find the right journals Responsibilities of leaders in research • Keep up to date on new and developing science • Nurture new research through direction and funding • Measure the impact of scientific efforts • Access timely, objective and informed information to make policy and budget decisions
Metrics – How to measure science? • Scientists communicate through the literature in academic journals • Citations are considered the “coin of the realm” in science • Bibliometrics uses statistical analysis to draw a landscape of scientific communication and productivity. • Citation analysis: • examines the elements of bibliographic records (citations) • studies relationships between citations • measures the amount of scientific activity in a subject category, journal, country, topic or other areas of interest.
Why Metrics? • Uses readily available data • Employs transparent and reproducible methodology • Provides quantitative information that policy makers can apply to their decision process “If you can measure that of which you speak, and can express it by a number, you know something of your subject; but if you cannot measure it, your knowledge is meager and unsatisfactory” - Lord Kelvin (William Thomson)
Elements of Evaluation using Bibliometric Methods • Theory of citation: • Citations are a form of peer recognition • Basic measures: • Papers, citations, citations per paper (impact) • Relative measures: • impact relative to baselines; • expected citation rates for articles; • percentiles • Units of analysis: • papers, authors, institutions, countries, journals • Measures of interaction: • research fronts, interdisciplinarity, collaboration
Economics informs but citation analysis provides more detail Turkey Turkish research motivation is seen in the OECD records on percentage of GDP dedicated to Research & Development. Turkey is surging and soon to exceed Portugal. Source: OECD Factbook 2008 Science and technology - Research and Development (R&D) - Expenditure on R&D
Research Growth and Impact in Turkey, 1981-2007 Turkish research has grown steadily over the last 27 years. On average, Turkey produced over 14,000 scientific papers per year from 2003-2007, with large movement in aggregate citations between 2003 and 2007. Source: National Science Indicators, 1981-2007 – WOS version
Total Papers Annual Research Growth in Turkey, 1981-2007 In 2003, Turkey broke through to go above 10,000 research papers produced in a single year. Source: National Science Indicators, 1981-2007 – WOS version
Total Papers Research Growth in Turkey, 1981-2007, compared to Greece Among the countries in the region, Greece is the closest in publications but continues to lag behind Turkey’s strong growth trend. Source: National Science Indicators, 1981-2007 – WOS version
% Papers In World Percentage of papers in the world, 1981-2007 Turkey also exceeds Greece in overall contribution to research in the world. Source: National Science Indicators, 1981-2007 – WOS version
Avg. Cite Per Paper Baseline=1 Research in Turkey – Citation Impact Citation impact is the average citation rate: total cites/total papers. Turkey’s average citation rate has risen consistently since the mid-1990’s and is trending to continue its steep movement into the world scientific community. Source: National Science Indicators, 1981-2007 – WOS version
% of Papers Cited Research in Turkey – Percentage Cited While publication growth is strong, Turkey is still working to exceed Greece in percentage of papers cited. Source: National Science Indicators, 1981-2007 – WOS version
Turkey: Field Specialization The following 10 fields make up over 85% of Turkish scientific research Source: National Citation Report on the nation of Turkey (ESI), 1981-2007
Turkey: Field Specialization Generally Turkey contributes 1.48% of all world papers in 2003-2007. The following fields exceed that level and indicate a national strength for Turkey in world contribution Field% papers in field in the world Agricultural Sciences 2.76 Clinical Medicine 2.62 Engineering 1.94 Plant & Animal Science 1.89 Field% papers in field in the world Ecology/Environment 1.59 Pharmacology 1.54 Materials Science 1.50 Source: National Science Indicators, 1981-2007, ESI version
Turkey: International Collaboration Turkish research is written more often within the country. Here are the top 20 countries represented in Turkish collaborations since 2000. Source: National Citation Report on the nation of Turkey, 1981-2007
University Publications These 17 universities published 1000 or more papers over the period 2002-2006. This illustrates academic contribution to the national performance Source: National Science Indicators customized for Turkish Institutions, 1981-2006
Instanbul University Hacettepe University Ankara University Ege University Gazi University Growth of Publications in Specific Universities In the 2002-2006 period, these 5 leading Turkish universities fit into the mid-range of publication counts for the US, UK, Australia, and Canada university indicators. Source: National Science Indicators customized for Turkish Institutions, 1981-2006
Relation of University Strengths to National Strengths Source: National Science Indicators customized for Turkish Institutions, 1981-2006
Field Specialization, 2002-2006 Other fields of Turkish strength like Engineering are represented by a unique set of universities. Source: National Science Indicators customized for Turkish Institutions, 1981-2006
Growth of Publications in Leading Technical Universities, 1981-2007 Highlight comparisons between Middle East Technical University and Instanbul Tecknick Source: National Science Indicators customized for Turkish Institutions, 1981-2006
Engineering subfields at METU Source: National Science Indicators customized for Turkish Institutions, 1981-2006
Engineering at METU: ChemE journals Source: National Science Indicators customized for Turkish Institutions, 1981-2006
Engineering at METU: Authors in ChemE Source: National Science Indicators customized for Turkish Institutions, 1981-2006
Engineering at METU: A well cited ChemE paper from Dr. T. Dogu Source: National Science Indicators customized for Turkish Institutions, 1981-2006
Comments • Because science is such a dynamic enterprise, no one metric is adequate for evaluation. • Evaluation is the culmination of quantitative and qualitative considerations, within a particular environment. • Citation analysis can help highlight researchers and the work that impacts the overall impact of an organization, group, or nation. • Examines the elements of publıcatıon records • Studies relationships between citations • Allows for the measurement of the amount of scientific activity in varıous areas, e.g. Organızatıons, nıdıvıduals, journals, subject areas