Politeknik Dergisi 2147-9429 Gazi Üniversitesi 10.2339/politeknik.1347054 Computer Software Bilgisayar Yazılımı EMACrawler: Web Search Engine Database Freshness Optimization EMACrawler: Web Arama Motoru Veritabanı Tazeliği Optimizasyonu https://orcid.org/0000-0001-9710-5658 Alanoğlu Zülfü MUSTAFA KEMAL ÜNİVERSİTESİ https://orcid.org/0000-0002-6615-1237 Akcayol M. Ali GAZİ ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, BİLGİSAYAR MÜHENDİSLİĞİ BÖLÜMÜ 12 12 2024 27 6 2201 2214 08 21 2023 11 15 2023 Copyright © 1998, Politeknik Dergisi 1998 Politeknik Dergisi

In today's information and technology age, search engines have become an important part of our lives. Although search engines are the first to be used to access information, old and unnecessary information is included in the content offered to users. In terms of providing up-to-date data, today's search engines often cannot offer the desired success. In order to keep the data presented by web browsers up-to-date, the time of return visits must be accurately estimated. In this study, EMACrawler based on exponential moving average is proposed to determine the revisit times, which is the most important feature that affects the performance of search engines. The proposed method is tested using precision, total coverage and efficiency metrics. It has been seen that EMACrawler obtains the current data on the web pages in an accurate and quick manner. As a result of the experimental studies, it has been seen that EMACrawler is more successful than other methods in obtaining up-to-date data and maintaining the freshness of the browser database.

Günümüz bilgi ve teknoloji çağında arama motorları hayatımızın önemli bir parçası haline gelmiştir. Her ne kadar bilgiye erişimde ilk başvurulan arama motorları olsa da kullanıcılara sunulan içerikte eski ve gereksiz bilgiler yer almaktadır. Güncel verileri sağlamak açısından günümüzdeki arama motorları çoğunlukla istenen başarıyı sunamamaktadır. Web tarayıcılarının sunduğu verilerin güncelliğini sağlamak için tekrar ziyaret zamanının doğru tahmin edilmesi gerekmektedir. Bu çalışmada arama motorlarının performanslarını etkileyen en önemli özellik olan tekrar ziyaret zamanlarının belirlenmesi için üstel hareketli ortalamaya dayanan EMACrawler önerilmiştir. Önerilen yöntem kesinlik, toplam kapsama alanı ve verimlilik metrikleri kullanılarak test edilmiştir. EMACrawler’ın web sayfalarındaki güncel veriyi doğru tahmin zamanında ve hızlı bir şekilde elde ettiği görülmüştür. Yapılan deneysel çalışmaların sonucunda EMACrawler’ın güncel verilerin elde edilmesi ve tarayıcı veri tabanının tazeliğinin korunmasında diğer yöntemlerden daha başarılı olduğu görülmüştür.

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