Atıksu Yapım ve Tesisat Projelerinde Yüklenicilerin Fiyat Teklif Stratejilerinin Birliktelik Kural Çıkarım Algoritması ile İncelenmesi: Türkiye Örneği

Sabit birim fiyatlı sözleşmeler, inşaat projelerinde kullanılan en popüler proje teslim ve ihale yöntemlerinden biridir. Bu tür tekliflerde, istekli tüm yükleniciler birim fiyat kalemleri için teklif verirken farklı stratejiler izlemektedir. Bu stratejilerin nedenleri ne kadar netleşirse, yetkililer, projelerin kalite gereksinimlerini karşılamak için ihale prosedürünü o kadar etkili bir şekilde yapabilirler. Geniş bir perspektifte, birliktelik kuralı çıkarma yöntemleri bu sorunun üstesinden gelmek için faydalı araçlar olabilir. Bu çalışmada, Türkiye’de gerçekleştirilen 9 adet atıksu tesisat projesinde 102 teklif ve 37 birim fiyat kalemi incelenip apriori algoritması kullanılarak ihale kuralları çıkarılmıştır. Elde edilen sonuçlar, yüklenicilerin bir teklif kararı verirken belirli şekillerde belirli kurallar uyguladığını göstermiştir.

Investigation of Contractors’ Price Bidding Strategies in Waste Water Construction and Installation Projects by Association Rule Extraction Algorithms: The Case of Turkey

Fixed unit price contracting is one of the most popular project delivery and tendering methods used in Turkish public construction projects. In this type of tenders, all willing contractors follow different strategies while bidding for unit price items. The more clarified the reasons of these strategies are, the more effectively the authorities can carry out the tender procedure to meet the quality requirements of the projects. In a broad perspective, association rule extraction methods can be useful tools to overcome this issue. In this study, 102 bids and 37 unit price items in 9 public sewerage projects were investigated and the bidding rules were extracted by using the apriori algorithm. The obtained results demonstrated that contractors apply specific rules in certain ways while making a bidding decision.

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