Computer Science Technical Reports: Recent submissions

Now showing items 61-80 of 280

    • A Proposal for an Agent Architecture for Proactive Persistent Non Player Characters 

      Mac Namee, Brian; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2001-05)
      In the past, games development has been driven by the need to achieve more realistic graphics. This has resulted in a situation today with games set in visually stunning, and almost photo realistic worlds being the norm. ...

    • Gaining Insight through Case-Based Explanation 

      Nugent, Conor; Doyle, Donal; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2004-12)
      Because CBR is an interpretable process, it is a reasoning mechanism that supports explanation. This can be done explicitly by the system designers incorporating explanation patterns in cases. This can be termed knowl ...

    • Programme driven music radio 

      Hayes, Conor; Cunningham, Padraig; Clerkin, Patrick; Grimaldi, Marco (Trinity College Dublin, Department of Computer Science, 2002-01)
      This paper describes the operation of and research behind a networked application for the delivery of personalised streams of music at Trinity College Dublin. Smart Radio is a web based client-server application that ...

    • Diversity versus Quality in Classification Ensembles based on Feature Selection 

      Cunningham, Padraig; Carney, John G. (Trinity College Dublin, Department of Computer Science, 2000-01)
      Feature subset-selection has emerged as a useful technique for creating diversity in ensembles ? particularly in classification ensembles. In this paper we argue that this diversity needs to be monitored in the creation ...

    • Overfitting and Diversity in Classification Ensembles based on Feature Selection 

      Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2000-02)
      This paper addresses Wrapper-like approaches to feature subset selection and the production of classifier ensembles based on members with different feature subsets. The paper starts with the observation that if an ...

    • The Sam Loyd 15-Puzzle 

      Hayes, Richard (Trinity College Dublin, Department of Computer Science, 2001-06)
      This report presents an approach to solve Sam Loyd?s famous 15-puzzle. The 15 or sliding puzzle is traditionally represented as a 4 * 4 board with tiles numbered from 1 to 15 arranged in numerical order from top left to ...

    • Research Directions for AI in Computer Games 

      Fairclough, Chris; Fagan, Michael; Mac Namee, Brian; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2001-10)
      The computer games industry is now bigger than the film industry. Until recently, technology in games was driven by a desire to achieve real-time, photo-realistic graphics. To a large extent, this has now been achieved. ...

    • Java Decaffeinated: experiences building a programming language from components 

      Farragher, Linda; Dobson, Simon (Trinity College Dublin, Department of Computer Science, 2000-06)
      Most modern programming languages are complex and feature rich. Whilst this is (sometimes) an advantage for industrial-strength applications, it complicates both language teaching and language research. We describe our ...

    • Smart Radio - Building Music Radio On the Fly 

      Hayes, Conor; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2000-09)
      This paper describes the development of a networked music application at Trinity College Dublin. Smart Radio is a web based client-server application which uses streaming audio technology and collaborative recommendation ...

    • Adaptability in CORBA: The Mobile Proxy Approach 

      Aziz, Benjamin; Jensen, Christian D. (Trinity College Dublin, Department of Computer Science, 2000-12)
      Adaptability is one of the most important challenges in modern distributed systems. It may be defined as the ease with which a software application satisfies the different system constraints and the requirements of users ...

    • A detailed derivation of the relationship between generalization error and ambiguity in regression ensembles 

      Zenobi, Gabriele (Trinity College Dublin, Department of Computer Science, 1999-12)
      In this technical report we will show the complete sequence of steps for the derivation of the equation of the Ensemble-Error E = E - A , introduced in the paper by Krogh and Vedelsby [1], that describes the error E of ...

    • Stability Problems with Artificial Neural Networks and the Ensemble Solution 

      Cunningham, Padraig; Carney, John G.; Jacob, Saji (Trinity College Dublin, Department of Computer Science, 1999-10)
      Artificial Neural Networks (ANNs) are very popular as classification or regression mechanisms in medical decision support systems despite the fact that they are unstable predictors. This instability means that small ...

    • Overview of Appearance Based Methods in Computer Vision 

      Duffy, Nicola (Trinity College Dublin, Department of Computer Science, 1999-10-06)
      Appearance based methods turned traditional computer vision approaches to object recognition upside down. Instead of going from image to 3D model and matching that model to models of know objects, appearance based methods ...

    • The Application of Case-Based Reasoning to Early Software Project Cost Estimation and Risk Assessment 

      Delany, Sarah Jane; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2000-02)
      In this paper we assess the applicability of case-based reasoning to the difficult problem of early software project cost estimation. We conclude that a comprehensive case representation is not available early in the ...

    • A Dynamic Approach to Reducing Dialog in On-Line Decision Guides 

      Doyle, Michelle; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 2000-03)
      Online decision guides typically ask too many questions of the user, as they make no attempt to focus the questions. We describe some approaches to minimising the questions asked of a user in an online query situation. ...

    • Kronecker?s and Newton?s approaches to solving : A first comparison 

      Hagele, Klemens (Trinity College Dublin, Department of Computer Science, 1999-09-29)
      In these pages we make a first attempt to compute efficiency of symbolic and numerical analysis procedures that solve systems of multivariate polynomial equations. In particular, we compare Kronecker?s solution (from the ...

    • 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 ...

    • Knowledge Engineering in a Real World Case-Based Reasoning Application 

      Cunningham, Padraig; Bonzano, Andrea (Trinity College Dublin, Department of Computer Science, 1999-05)
      Case-Based Reasoning (CBR) has emerged from research in cognitive psychology as a model of human memory and remembering. It has been embraced by researchers of AI applications as a methodology that avoids some of the ...

    • On balancing client - server load in intelligent web-based applications involving dialog 

      Doyle, Michelle; Cunningham, Padraig (Trinity College Dublin, Department of Computer Science, 1999-04)
      With the explosive growth of the Internet have come problems of increased server load and network latency. This means that systems that require interchange of data between server and client over the network can be slow to ...