Browsing Computer Science Technical Reports by Sponsor "Enterprise Ireland"

Now showing items 1-6 of 6

    • An Analysis of Case-Base Editing in a Spam Filtering System 

      Delany, Sarah Jane; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2004-08)
      Because of the volume of spam email and its evolving nature, any deployed Machine Learning-based spam filtering system will need to have procedures for case-base maintenance. Key to this will be procedures to edit ...

    • Blame-Based Noise Reduction: An Alternative Perspective on Noise Reduction for Lazy Learning 

      Pasquier, Francois-Xavier; Delany, Sarah Jane; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2005-02-22)
      In this paper we present a new perspective on noise reduction for nearest-neighbour classifiers. Classic noise reduction algorithms such as Repeated Edited Nearest Neighbour remove cases from the training set if they are ...

    • A Comparison of Ensemble and Case-Base Maintenance Techniques for Handling Concept Drift in Spam Filtering 

      Delany, Sarah Jane; Cunningham, Padraig; Tsymbal, Alexey (Trinity College Dublin, Department of Computer Science, 2005)
      The problem of concept drift has recently received considerable attention in machine learning research. One important practical problem where concept drift needs to be addressed is spam filtering. The literature on ...

    • Exploiting Re-ranking Information in a Case-Based Personal 

      Coyle, Lorcan; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2003)
      Intelligent software assistants are becoming more common in the e-commerce domain. We are working on a personal travel assistant. The goal of this application is to use case based reasoning to assist the user in arranging ...

    • Improving Recommendation Ranking by Learning Personal Feature Weights 

      Coyle, Lorcan; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2004-06-24)
      The ranking of offers is an issue in e-commerce that has received a lot of attention in Case-Based Reasoning research. In the absence of a sales assistant, it is important to provide a facility that will bring suitable ...

    • Non-Contact Surface Geometry Measurement Techniques 

      Bradshaw, Gareth (Trinity College Dublin, Department of Computer Science, 1999-09)
      It is often necessary to be able to create computer models from physical objects. This is often done for the purposes of reverse engineering, or archival. Many of the contact methods, such as callipers or Coordinate Measuring ...