Application of a semantic product matching mechanism in open tendering e-marketplaces

Abstract

Purpose Searching the tender notices that publish every day in open tendering websites is a common way for finding business opportunity in public procurement. The heterogeneity of tender notices from various tendering marketplaces is a challenge for exploiting semantic technologies in the tender search. Design/methodology/approach Most of the semantic matching approaches require the data to be structured and integrated according to a data model. But the integration process can be expensive and time-consuming especially for multi-source data integration. Findings In this paper, a product search mechanism that had been developed in an e-procurement platform for matching product e-catalogues is applied to the tender search problem. The search performance has been compared using two procurement vocabularies on searching tender notices from two major tender resources. Originality/value The test results show that the matching mechanism is able to find tender notices from heterogeneous resources and different classification systems without transforming the tenders to a uniform data model.

A Statistical Model for Identifying Collusive Bidding Based on Historical Quotations

“…Among them, the arithmetic average price of each bidder is taken as the price benchmark, and the business score of each bidder is calculated according to the difference between the price and the benchmark price [16]. This method can avoid the risk of winning bids at low prices and defective products, and is the most commonly used business score calculation method for large-scale or important material procurement [17]. However, the large interest drives some bidders to form a community to raise the benchmark price and win the bid at a high price for illegal profit, thus increasing the risk of collusion bidding.…”

A Statistical Model for Identifying Collusive Bidding Based on Historical Quotations

“…Open bidding is an important measure to standardize procurement behavior and improve the efficiency of capital use [3]. Since 2015, open bidding has made great progress and achieved an outstanding effect in material supply of Sinopec.…”