Computer Science Technical Reports: Recent submissions
Now showing items 141-160 of 280
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Bezier Curves for Camera Motion
(Trinity College Dublin, Department of Computer Science, 1994-12)This paper describes an attempt to address some of the deficiencies and infelicities associated with the use of piecewise Bezier segments when constructing a smooth path for a camera in a computer animation. In particular, ... -
A Comparison of Model-Based and Incremental Case-Based Approaches to Electronic Fault Diagnosis
(Trinity College Dublin, Department of Computer Science, 1994-12)CBR seems well suited to fault diagnosis because diagnostic episodes naturally form cases and much of expert competence seems to be based on reuse of old solutions. However, in many diagnosis problems it is difficult ... -
Advanced Image Understanding and Autonomous Systems
(Trinity College Dublin, Department of Computer Science, 1992-03)The ultimate goal of most image understanding systems is to produce an unambiguous 3-D representation of the local visual environment. This representation can then be employed by robotic systems to effect some meaningful ... -
Limitations of Scientific Ontology
(Trinity College Dublin, Department of Computer Science, 1992-04)Artificial life is a new multi-disciplinary science which is emerging from established practices in artificial intelligence, computational biology, and cybernetics. It is argued in this paper that conventional scientific ... -
Automatic Detection of Secondary Creases in Fingerprints
(Trinity College Dublin, Department of Computer Science, 1992-09)Human fingerprints comprise a series of whorls or ridges. In some special cases, these whorls are broken by so-called 'secondary creases': co-linear breaks across a sequence of adjacent ridges. A technique to automatically ... -
Retrieval Issues in Real-World CBR Applications How far can we go with discrimination-nets?
(Trinity College Dublin, Department of Computer Science, 1992-10)In this paper we present a proposition and ponder a question. We propose that a useful perspective on analogical reasoning and CBR is to consider them on a continuum of abstraction of remindings. This is an alternative ... -
A Survey of Gesture Recognition Techniques
(Trinity College Dublin, Department of Computer Science, 1993-07-17)Processing speeds have increased dramatically, bitmapped displays allow graph ics to be rendered and updated at increasing rates, and in general computers have advanced to the point where they can assist humans in complex ... -
Retrieval Issues in Real-World CBR Applications How far can we go with discrimination-nets?
(Trinity College Dublin, Department of Computer Science, 1993-06)We propose that analogical reasoning and case based reasoning (CBR) tasks can be usefully characterised as a continuum reflecting the remoteness of the remindings involved. Remindings in CBR are generally between semantically ... -
Machaon CVE: Cluster validation for gene expression data
(Trinity College Dublin, Department of Computer Science, 2003-12-08)This paper presents a cluster validation tool for gene expression data. Machaon-CVE (Clustering and Validation Environment) system aims to partition samples or genes into groups characterised by similar ... -
Modelling of Engineering Thermal Problems: An Implementation using CBR with Derivational Analogy
(Trinity College Dublin, Department of Computer Science, 1993-09)An interactive cased based reasoning tool for assisting engineers with the mathematical modelling tasks associated with the analysis of thermal problems is described. By representing fundamental thermal modelling scenarios ... -
Unemployment: A Technologist's Perspective
(Trinity College Dublin, Department of Computer Science, 1993-09) -
Feature Extraction for Classification in Knowledge
(Trinity College Dublin, Department of Computer Science, 2003)Dimensionality reduction is a very important step in the data mining process. In this paper, we consider feature extraction for classification tasks as a technique to overcome problems occurring because of ?the curse ... -
State of the Art Review of Mobile Payment Technology
(Trinity College Dublin, Department of Computer Science, 2003-06-13)[Introduction] Mobile payments will gain significant traction in the coming years as the mobile and payment technologies mature and become widely available. Various technologies are competing to become the established ... -
Context Boosting Collaborative Recommendations
(Trinity College Dublin, Department of Computer Science, 2003-06-13)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 uses ... -
Dynamic Integration of Classifiers in the Space of Principal Components
(Trinity College Dublin, Department of Computer Science, 2003)Recent research has shown the integration of multiple classifiers to be one of the most important directions in machine learning and data mining. It was shown that, for an ensemble to be successful, it should consist of ... -
Diversity in Ensemble Feature Selection
(Trinity College Dublin, Department of Computer Science, 2003)Ensembles of learnt models constitute one of the main current directions in machine learning and data mining. Ensembles allow us to achieve higher accuracy, which is often not achievable with single models. It was shown ... -
A Multiplayer Case Based Story Engine
(Trinity College Dublin, Department of Computer Science, 2003-11-04)This paper describes the development of an expert casebased character director system which dynamically generates and controls a story, which is played out in a multiplayer networked game world. The system handles multiple ... -
Concept Discovery in Collaborative Recommender Systems
(Trinity College Dublin, Department of Computer Science, 2003-09-06)There are two main types of recommender systems for e-commerce applications: content-based systems and automated collaborative filtering systems. We are interested in combining the best features of both approaches. In ... -
Exploiting Re-ranking Information in a Case-Based Personal
(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 ... -
Search Strategies for Ensemble Feature Selection in Medical Diagnostics
(Trinity College Dublin, Department of Computer Science, 2003)The goal of this paper is to propose, evaluate, and compare four search strategies for ensemble feature selection, and to consider their application to medical diagnostics, with a focus on the problem of the classification ...
