68 research outputs found
The data representativeness criterion: Predicting the performance of supervised classification based on data set similarity
No full textIn a broad range of fields it may be desirable to reuse a supervised classification algorithm and apply it to a new data set. However, generalization of such an algorithm and thus achieving a similar classification performance is only possible when the training data used to build the algorithm is similar to new unseen data one wishes to apply it to. It is often unknown in advance how an algorithm will perform on new unseen data, being a crucial reason for not deploying an algorithm at all. Therefore, tools are needed to measure the similarity of data sets. In this paper, we propose the Data Representativeness Criterion (DRC) to determine how representative a training data set is of a new unseen data set. We present a proof of principle, to see whether the DRC can quantify the similarity of data sets and whether the DRC relates to the performance of a supervised classification algorithm. We compared a number of magnetic resonance imaging (MRI) data sets, ranging from subtle to severe difference is acquisition parameters. Results indicate that, based on the similarity of data sets, the DRC is able to give an indication as to when the performance of a supervised classifier decreases. The strictness of the DRC can be set by the user, depending on what one considers to be an acceptable underperformance
Depletion interactions in lyotropic nematics
No full textCitation for published version (APA): Schoot, van der, P. P. A. M. (2000). Depletion interactions in lyotropic nematics. Journal of Chemical Physics, 112(20) Please check the document version of this publication: • A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement: www.tue.nl/taverne Take down policy If you believe that this document breaches copyright please contact us at: [email protected] providing details and we will investigate your claim. A theoretical study of depletion interactions between pairs of small, globular colloids dispersed in a lyotropic nematic of hard, rodlike particles is presented. We find that both the strength and range of the interaction crucially depends on the configuration of the spheres relative to the nematic director, and on their size. The interaction is significantly stronger parallel than perpendicular to the director, explaining the emergence of stringlike aggregates observed in experiment
Optimal design of experiments with simulation models of nearly saturated queues
No full textexperimental design;simulation models;queueing network;regression analysis
Performance Prediction of Power Recovery Turbines with combined 1D-CFD methods
No full textMechanical, Maritime and Materials EngineeringProcess & Energ
Artificial intelligence supports literature screening in medical guideline development: towards up-to-date medical guidelines
No full textIn a time of exponential growth of new evidence supporting clinical decision making, combined with a labor-intensive process of selecting this evidence, there is a need for methods to speed up current processes in order to keep medical guidelines up-to-date. The purpose of this study was to evaluate the performance and feasibility of active learning to support the selection of relevant publications within the context of medical guideline development
Thomas Aquinas on Human Beings as Image of God
No full textEmploying a work of modern conceptual art, a manipulated photograph entitled ‘The Missing Person’, the author studies Thomas Aquinas on the concept of human beings as image of (the Triune) God. Typical for Aquinas’ approach is the theocentric focus of his Christian anthropology. The threefold (nature, grace, glory) ‘image of God’, a central and dynamic concept in Aquinas’ Summa Theologiae, is both descriptive and prescriptive in nature, corresponding to an account of both analogical naming of the divine ánd living according to the vocation to become more and more image of the Triune God
Het ideale investeringsvoorstel: "Vastgoedontwikkeling is meer dan alleen risico's beheersen"
No full textA Housing association uses project development to suit the needs of their target group. In recent years some projects got a lot of media attention, because these project were not the projects housing associations should be doing according to the government, public and market parties. This research gives Dutch housing associations a management tool to make an investment proposal. This tool is an "ideal format for real estate development done by housing associations" which is based upon a broad literature study and a empirical study among seven housing associations.Design and Construction Management, Housing ManagementReal Estate & HousingArchitectur
Laser profiling of sewer pipes
No full textThe goal of the research is to determine the potential of laser scanning methods for accurate, non-invasive assessment of the changes in the inner pipe profile of concrete sewer pipes. The main research question is: ‘How accurate is the laser profiler when measuring deteriorated sewer pipes?’ In the research egg shaped concrete sewer pipes were measured under laboratory conditions. The used experimental setup consists of an old concrete, egg shaped sewer pipe. At the front and back of the pipe a ramp is placed to ensure a smooth entrance and exit of the inspection camera. The recordings from the laser profiler are analyzed with Matlab to determine the accuracy.Sanitary EngineeringWater ManagementCivil Engineering and Geoscience
Een vergelijking van kunstmatrices en covariantiefuncties
No full textCivil Engineering and Geoscience
Can we extract a relevant, available, and self-contained core of the Maven ecosystem?: Extracting the pillars of the community, and their dependencies.
No full textThe Maven ecosystem, with an emphasis on Maven Central, contains a plethora of toy-projects. This paper addresses this problem by formulating a core containing the pillars of the Maven ecosystem, such that it can be exploited for research concerning li- brary quality. The construction of said core is done by analyzing the availability, relevance and depen- dencies of packages in the Maven ecosystem. It involves answering questions regarding the distri- bution of library usages, the dependencies of popu- lar libraries and the effect of a usage threshold fil- tering mechanism. We found the popular libraries to be utilized to an incredible extend, while their less popular counterparts are seldom, if ever, used. Delving into the creation of a core reveals its non- trivial nature, requiring intricate knowledge of the Maven dependency mechanism and its accompany- ing tools to construct. This paper explores the com- plexities, nuances and considerations involved.CSE3000 Research ProjectComputer Science and Engineerin
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