Mathematics and Computer Science

Volume 3, Issue 2, March 2018

  • Exception Detection for ATM Transaction Status Based on a Self-Organizing Feature Mapping Model

    Xin Chen, Weidong Tian, Wenyuan Sun

    Issue: Volume 3, Issue 2, March 2018
    Pages: 46-53
    Received: 26 January 2018
    Accepted: 14 March 2018
    Published: 9 April 2018
    Abstract: In order to solve these problems such as monitoring the ATM behavior of operation, exception detection for ATM transaction status and so on, in this paper we establish the detecting system of SOFM for the ATM to raise the timely alarm and reduce the false alarm rate. The results of SOFM model simulation show that the ATM transaction exceptions coll... Show More
  • Using Data Envelopment Analysis to Ranking ICMS’s Taxpayers

    Sergio Augusto Para Bittencourt Neto, Simone Borges Simao Monteiro, Joao Carlos Felix Souza, Ricardo Matos Chaim

    Issue: Volume 3, Issue 2, March 2018
    Pages: 54-66
    Received: 18 April 2018
    Accepted: 3 May 2018
    Published: 1 June 2018
    Abstract: This study presents a practical methodology developed in the R software language, which makes use of Data Envelopment Analysis, in the Constant Returns of Scale model, to measure the tax collection efficiency of the ICMS taxpayers (Brazilian tax on commercial operations related to the movement of goods and interstate and inter-municipal transportat... Show More