نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناس ارشد، علم اطلاعات و دانش‌شناسی، گروه علم اطلاعات و دانش‌شناسی، دانشکده مدیریت، دانشگاه تهران، تهران، ایران

2 دانشیار، علم اطلاعات و دانش‌شناسی، گروه علم اطلاعات و دانش‌شناسی، دانشگاه پیام نور، تهران، ایران

3 کارشناس ارشد، سلولی ملکولی، دانشکده علوم پایه، واحد تنکابن، دانشگاه آزاد اسلامی، مازندران، ایران

4 استادیار، علم اطلاعات و دانش‌شناسی، گروه علوم تربیتی، دانشکده ادبیات و علوم انسانی، دانشگاه لرستان، خرم‌آباد، ایران

چکیده

مقدمه: مطالعات علم‌سنجی، یکی از کارامدترین روش‌های ارزشیابی علمی در پایگاه‌های اطلاعاتی معتبر به شمار می‌رود. همچنین، خوشه‌بندی سلسله مراتبی، ابزار سودمندی در ارایه تصویری از پژوهش‌های یک قلمرو و درک ساختار دانشی آن می‌باشد. از این‌رو، مطالعه حاضر با هدف واکاوی ساختار فکری تحقیقات در حوزه سرطان معده انجام شد.روش بررسی: این تحقیق با رویکرد تحلیلی و به روش تحلیل هم‌رخدادی واژگان و خوشه‌بندی سلسله مراتبی که از جمله روش‌های علم‌سنجی می‌باشد، انجام گردید. جامعه پژوهش شامل کلید واژه‌های مقالات نمایه شده در پایگاه Web of Science در زمینه سرطان معده بین سال‌های 1997 تا 2019 بود. بدین ترتیب، 58709 رکورد نمایه شده در پایگاه مذکور شامل 207625 کلید واژه استخراج گردید. داده‌ها با استفاده از نمودار راهبردی و نمودار دندروگرام مورد تجزیه و تحلیل قرار گرفت.یافته‌ها: یافته‌های مربوط به خو‌شه‌بندی سلسله مراتبی به روش Ward، منجر به شکل‌گیری چهار خوشه «Cell signsling in cancer, Oncogenes and cancer, Roll of cell cycle and check points in cancer, Reasons and diagnosis» در این قلمرو شد. خوشه‌ دوم (Oncogenes and cancer) دارای بیشترین مرکزیت و خوشه‌ اول (Cell signsling in cancer) دارای کمترین مرکزیت در میان خوشه‌های مختلف بود. همچنین، خوشه‌ اول (Cell signsling in cancer) بیشترین تراکم و خوشه دوم (Oncogenes and cancer) کمترین تراکم را در میان دیگر خوشه‌ها به خود اختصاص داد.نتیجه‌گیری: خوشه‌بندی سلسله مراتبی توانایی ارایه تصویر روشنی از ساختار علمی مطالعات قلمرو‌‌ی سرطان معده را دارد. نتایج به دست آمده از تحلیل مقالات حوزه سرطان، منجر به شناخت قلمروهای نوظهور و توسعه نیافته است که مبنایی علمی برای محققان و سیاست‌گذاری‌های آینده می‌باشد.

کلیدواژه‌ها

عنوان مقاله [English]

Analysis of Stomach Cancer Fields through Hierarchical Clustering Method

نویسندگان [English]

  • Razieh Farshid 1
  • Faramarz Soheili 2
  • Hamed Gholami 3
  • Ehsan Geraei 4

1 MSc, Knowledge and Information Science, Department of Knowledge and Information Science, School of Management, University of Tehran, Tehran, Iran

2 Associate Professor., Knowledge and Information Science, Payame Noor University, Tehran, Iran

3 MSc, Molecular Cell, School of Basic Sciences, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran

4 Assistant Professor, Knowledge and Information Science, Department of Educational Sciences, School of Literature and Human Sciences, Lorestan University, Lorestan, Iran

چکیده [English]

Introduction: Scientometric study is one of the efficient methods of academic evaluation in authentic databases. Hierarchical clustering is also a useful instrument in providing an overview of a studies in a field and understanding of its knowledge structure. Therefore, this study tries to explore the intellectual structure of the studies carried out in the field of gastric cancer.Methods: This study was carried out using co-word analysis and hierarchical clustering of scientometric methods with an analytical approach. The study population included keywords of articles indexed in Web of Science database in the field of stomach cancer from 1979 to 2019. The population included 58,709 records indexed on the Web of Science database from 1979 to 2019 and included 207,625 keyword extracted. Data were analyzed through strategic and dendrogram chart.Results: Findings related to hierarchical clustering by Ward method led to the formation of four clusters in this domain: Cell signaling in cancer, Oncogenes and cancer, Roll of cell cycle and check points in cancer, Reasons and diagnosis. The clusters 2 and 1 (Oncogenes and cancer and Cell signaling in cancer) had the highest and lowest concentration among the clusters, respectively. Besides, clusters 1 and 2 (Cell signaling in cancer and Oncogenes and cancer) had respectively the highest and lowest density among the clusters.Conclusion: Hierarchical clustering has the potential of providing a clear image of the academic structure of studies in the gastric cancer domain. The results of the analysis of articles in the field of gastric cancer that led to the identification of underdeveloped areas can be an academic basis for future researchers.

کلیدواژه‌ها [English]

  • Stomach Neoplasms
  • Hierarchical clustering
  • Co-Word Analysis
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