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Subject: Text mining

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    Article
    Citation - WoS: 21
    Citation - Scopus: 26
    Detecting Latent Topics and Trends in Software Engineering Research Since 1980 Using Probabilistic Topic Modeling
    (Ieee-inst Electrical Electronics Engineers inc, 2022) Gurcan, Fatih; Dalveren, Gonca Gokce Menekse; Cagiltay, Nergiz Ercil; Soylu, Ahmet
    The landscape of software engineering research has changed significantly from one year to the next in line with industrial needs and trends. Therefore, today's research literature on software engineering has a rich and multidisciplinary content that includes a large number of studies; however, not many of them demonstrate a holistic view of the field. From this perspective, this study aimed to reveal a holistic view that reflects topics, trends, and trajectories in software engineering research by analyzing the majority of domain-specific articles published over the last 40 years. This study first presents an objective and systematic method for corpus creation through major publication sources in the field. A corpus was then created using this method, which includes 44 domain-specific conferences and journals and 57,174 articles published between 1980 and 2019. Next, this corpus was analyzed using an automated text-mining methodology based on a probabilistic topic-modeling approach. As a result of this analysis, 24 main topics were found. In addition, topical trends in the field were revealed. Finally, three main developmental stages of the field were identified as: the programming age, the software development age, and the software optimization age.
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    Article
    Citation - WoS: 11
    Citation - Scopus: 17
    Student Engagement Research Trends of Past 10 Years: a Machine Learning-Based Analysis of 42,000 Research Articles
    (Springer, 2023) Gurcan, Fatih; Erdogdu, Fatih; Cagiltay, Nergiz Ercil; Cagiltay, Kursat
    Student engagement is critical for both academic achievement and learner satisfaction because it promotes successful learning outcomes. Despite its importance in various learning environments, research into the trends and themes of student engagement is scarce. In this regard, topic modeling, a machine learning technique, allows for the analysis of large amounts of content in any field. Thus, topic modeling provides a systematic methodology for identifying research themes, trends, and application areas in a comprehensive framework. In the literature, there is a lack of topic modeling-based studies that analyze the holistic landscape of student engagement research. Such research is important for identifying wide-ranging topics and trends in the field and guiding researchers and educators. Therefore, this study aimed to analyze student engagement research using a topic modeling approach and to reveal research interests and trends with their temporal development, thereby addressing a lack of research in this area. To this end, this study analyzed 42,517 peer-reviewed journal articles published from 2010 to 2019 using machine learning techniques. According to our findings, two new dimensions, "Community Engagement" and "School Engagement", were identified in addition to the existing ones. It is also envisaged that the next period of research and applications in student engagement will focus on the motivation-oriented tools and methods, dimensions of student engagement, such as social and behavioral engagement, and specific learning contexts such as English as a Foreign Language "EFL" and Science, Technology, Engineering and Math "STEM".
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    Master Thesis
    Yükseköğretim Araştırma Eğilimlerinin Gizli Dirichlet Tahsisi ile Analiz Edilmesi: Bir Metin Madencilik Yaklaşımı
    (2023) Alrayashı, Abdulazız Mohammedabdullah; Ekin, Cansu Çiğdem
    Bu tez, Web of Science'ta (WOS) endekslenen 69.000'den fazla akademik yayından oluşan geniş bir külliyatı analiz ederek yüksek öğretimdeki araştırma eğilimlerini araştırmaktadır. Çalışma, yüksek öğretim araştırma ortamına ilişkin daha derin bir anlayış kazanmak için bibliyometrik analiz ve konu modelleme tekniklerinin, özellikle Gizli Dirichlet Tahsisi'nin (LDA) bir kombinasyonunu kullanır. Bibliyometrik analiz, yüksek öğretimle ilgili WOS yayınlarının istatistiksel dağılımlarının kapsamlı bir incelemesini sunar. Bu, yüksek öğretimdeki araştırma bağlamını anlamak için sağlam bir temel sağlayan yayın eğilimleri, belge türleri, diller ve araştırma alanları gibi unsurları içerir. Buna paralel olarak, LDA kullanan konu modelleme analizi, alandaki ana araştırma eğilimlerini, konuları ve sıklıkla ele alınan konuları ortaya çıkararak araştırma temalarının zaman içindeki gelişimine ışık tutar. Bu çalışma, hem bibliyometrik hem de konu modelleme metodolojilerini birleştirerek yüksek öğretim araştırmalarının mevcut durumunun kapsamlı bir resmini sunmaktadır. Bulgular, alanın karmaşıklığının ve karşılıklı bağımlılığının altını çizerek, yüksek öğretimde var olan olasılıkları ve sorunları ele almak için çok disiplinli bir stratejiye duyulan ihtiyacı vurgulamaktadır. Sonuçlar, yüksek öğretim araştırmalarındaki bilgi birikimine katkıda bulunur ve bu alandaki en son gelişmeler ve eğilimler hakkında güncel kalmak isteyen akademisyenler, karar vericiler ve uygulayıcılar için yararlı bir araçtır.