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International Conference on Advanced Learning Technologies (ICALT)

作者： Dietmar Zoerner Jan Schütze Simone Kirst Isabel Dziobek Ulrike Lucke Dpt. of Computer Science University of Potsdam Potsdam Germany Berlin School of Mind and Brain Humboldt-Universität zu Berlin Berlin Germany

ISBN: (纸本)9781467390422

The aim of the mobile app "Zirkus Empathico" is to strengthen socio-emotional competences in pre-and primary school children. It's holistic and natural training concept is based on current results of empathy research. Pilot testing of the app revealed it's good usability and comprehensibility. The effectiveness of "Zirkus Empathico" is currently investigated in a longitudinal clinical study with children aged 5 to 10.

关键词： Training Autism Games Visualization Software Libraries Mobile communication

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CLASSIFICATION OF MULTIPLE ANNOTATOR DATA USING VARIATIONAL GAUSSIAN PROCESS INFERENCE

CLASSIFICATION OF MULTIPLE ANNOTATOR DATA USING VARIATIONAL ...

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European Signal Processing Conference

作者： Emre Besler Pablo Ruiz Rafael Molina Aggelos K. Katsaggelos Dpt. of Electrical Engineering and Computer Science. Northwestern University Dpto. de Ciencias de la Computación e I.A. Universidad de Granada

ISBN: (纸本)9781509018918

In this paper we address supervised learning problems where, instead of having a single annotator who provides the ground truth, multiple annotators, usually with varying degrees of expertise, provide conflicting labels for the same sample. Once Gaussian Process classification has been adapted to this problem we propose and describe how Variational Bayes inference can be used to, given the observed labels, approximate the posterior distribution of the latent classifier and also estimate each annotator's reliability. In the experimental section, we evaluate the proposed method on both generated synthetic and real data, and compare it with state of the art crowdsourcing methods.

关键词： Crowdsourcing Gaussian processes Solid modeling Europe Signal processing Supervised learning Bayes methods Semi-supervised Learning entity modeling Gaussian processes Bayes methods signal processing Crowdsource detection zone Gauss

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Enhanced rolling cache architecture with prefetch

Enhanced rolling cache architecture with prefetch

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IEEE International Conference on Consumer Electronics-Asia (ICCE-Asia)

作者： Daeyeon Jo Seonyoung Lee Kyoungwon Min Yong Ho Song Intelligent SoC Research Center Korea Electronics Technology Institute Seongnam Korea Dpt. Electronics and Computer Engineering Hanyang University Seoul Korea

ISBN: (纸本)9781509027446

Most of image processing algorithms such as filters are sequentially processed. So, data reusability should be considered to maximize processing efficiency. Because of its high performance and resource requirement, data refill by block based cache architecture has been proposed to maximize data reusability for a portable device image processing. However, if non-continuous data access happens, block based cache architecture degrade performance because data reusability is broken. In this paper, prefetch based enhanced rolling cache method is proposed. Proposed method not only improves data reusability for sequential processing cases, but also maintains efficiently even if data reusability is broken. Our experimental results show that the proposed method reduces CPU stall time and the number of cache refill clocks counts up to 60% compared to previous methods.

关键词： Clocks Prefetching computer architecture Image processing Performance evaluation Conferences Streaming media

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Cross-lingual transfer of correlations between parts of speech and gaze features 26

Cross-lingual transfer of correlations between parts of spee...

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26th International Conference on Computational Linguistics, COLING 2016

作者： Keller, Frank Barrett, Maria Søgaard, Anders School of Informatics University of Edinburgh 10 Crichton Street EdinburghEH8 9AB United Kingdom Centre for Language Technology University of Copenhagen Njalsgade 136 Copenhagen S2300 Denmark Dpt. of Computer Science University of Copenhagen Sigurdsgade 41 Copenhagen N2200 Denmark

ISBN: (纸本)9784879747020

Several recent studies have shown that eye movements during reading provide information about grammatical and syntactic processing, which can assist the induction of NLP models. All these studies have been limited to English, however. This study shows that gaze and part of speech (PoS) correlations largely transfer across English and French. This means that we can replicate previous studies on gaze-based PoS tagging for French, but also that we can use English gaze data to assist the induction of French NLP models. © 1963-2018 ACL.

关键词： Eye movements

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Multi-band signal-interference planar bandpass filters based on stub-loaded transversal filtering sections

Multi-band signal-interference planar bandpass filters based...

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IEEE International Wireless Symposium (IWS)

作者： Roberto Gómez-García Dimitra Psychogiou José-María Muñoz-Ferreras Dimitrios Peroulis Dpt. Signal Theory & Commun University of Alcalá Alcalá de Henares Madrid SPAIN School of Electrical and Computer Engineering Purdue University West Lafayette IN USA

This paper addresses the application of bi-path stub-loaded in-parallel-transmission-line-type transversal filtering sections (TFSs) to the design of signal-interference microwave planar multi-band bandpass filters (BPFs). It is demonstrated that by inserting a ground-ended loading stub in one of the signal-propagation paths of their building TFSs, several performance benefits in multi-band planar BPFs can be gained. Among them, it is particularly noticed i) the creation of a higher number of passbands for a particular size of the TFS two-path loop, ii) DC-transmission supression, and iii) synthesis of wide-band dual-band bandpass filtering responses with broadly-separated passbands. A comparison of the stub-loaded TFS with its classic counterpart is provided. Two design examples consisting of three-stage quad-band and broad-band dual-band BPFs with widely-spaced passbands, along with measurements for the former one, are also presented.

关键词： Band-pass filters Passband Dual band Microstrip Microwave circuits

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Application of capacitive-loading size-reduction techniques to multi-band and reconfigurable-bandwidth signal-interference planar bandpass filters

Application of capacitive-loading size-reduction techniques ...

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IEEE Radio and Wireless Symposium (RWS formerly RAWCON)

作者： R. Loeches-Sanchez D. Psychogiou R. Gomez-Garcia D. Peroulis Dpt. of Signal Theory & Commun. University of Alcalá Alcalá de Henares Madrid Spain School of Electrical and Computer Engineering Purdue University West Lafayette IN USA

This paper examines the applicability of capacitive-loading-based size-reduction techniques to wideband and multi-band signal-interference planar filters. Using this approach, a miniaturized 0.96/1.84-GHz dual-band bandpass filter (BPF) shaped by a branch-line-coupler-type transversal filtering section (TFS) is built and measured. It features a 55.4% area decrease in relation to its fully-planar counterpart. Besides, a compact-size 2-GHz reconfigurable-bandwidth BPF made up of two TFSs loaded with switchable stubs is designed. Its layout shows a size reduction of 56.0% when compared to its classic precursor. For both design examples, the trade-off existing between miniaturization level and narrowing effect of their transfer function is discussed.

关键词： Band-pass filters Prototypes Microwave filters Filtering theory Transmission lines Dual band

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Signal-interference bandpass filters with dynamic in-band interference suppression

Signal-interference bandpass filters with dynamic in-band in...

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IEEE Radio and Wireless Symposium (RWS formerly RAWCON)

作者： Dimitra Psychogiou Roberto Gomez-Garcia Dimitrios Peroulis School of Electrical and Computer Engineering Purdue University West Lafayette IN USA Dpt. of Signal Theory & Commun. University of Alcalá Alcalá de Henares Madrid Spain

ISBN: (纸本)9781467398077

This paper focuses on the design of wide-band bandpass filters (BPFs) with dynamic in-band interference suppression. They are based on a new class of a signal-interference transversal filtering section (TFS) that consists of three signal paths that are effectively combined so that an absorptive notch (AN) - exhibiting theoretically infinite attenuation - is created within the BPF passband. In the devised implementation, the center frequency of the rejection band is reconfigured by altering the resonant frequency of two capacitively-loaded microstrip-line resonators that are incorporated into one of the propagation paths. The proposed design approach allows realizations of filter circuits with approximately 50% smaller size than that of conventional filter cascades shaped by the series connection of a BPF and an AN filter. For proof-of-concept validation purposes, an experimental prototype is built and measured. It demonstrates a tunable AN between 1.8 and 2.5 GHz located within a wide-band passband centered at 2 GHz.

关键词： Band-pass filters Passband Resonator filters Transversal filters Radio frequency Resonant frequency Filtering theory

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Reconstructing gene trees from Fitch's xenology relation

arXiv

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arXiv 2017年

作者： Geiß, Manuela Anders, John Stadler, Peter F. Wieseke, Nicolas Hellmuth, Marc Bioinformatics Group Department of Computer Science Interdisciplinary Center of Bioinformatics University of Leipzig Härtelstraße 16-18 LeipzigD-04107 Germany Dpt. of Mathematics and Computer Science University of Greifswald Walther- Rathenau-Strasse 47 GreifswaldD-17487 Germany Saarland University Center for Bioinformatics Building E 2.1 P.O. Box 151150 SaarbrückenD-66041 Germany Max-Planck-Institute for Mathematics in the Sciences Inselstraße 22 LeipzigD-04103 Germany Inst. f. Theoretical Chemistry University of Vienna Währingerstraße 17 WienA-1090 Austria Santa Fe Institute 1399 Hyde Park Rd. Santa Fe United States Parallel Computing and Complex Systems Group Department of Computer Science Leipzig University Augustusplatz 10 Leipzig04109 Germany

Two genes are xenologs in the sense of Fitch if they are separated by at least one horizontal gene transfer event. Horizonal gene transfer is asymmetric in the sense that the transferred copy is distinguished from the one that remains within the ancestral lineage. Hence xenology is more precisely thought of as a non-symmetric relation: y is xenologous to x if y has been horizontally transferred at least once since it diverged from the least common ancestor of x and y. We show that xenology relations are characterized by a small set of forbidden induced subgraphs on three vertices. Furthermore, each xenology relation can be derived from a unique least-resolved edge-labeled phylogenetic tree. We provide a linear-time algorithm for the recognition of xenology relations and for the construction of its least-resolved edge-labeled phylogenetic tree. The fact that being a xenology relation is a heritable graph property, finally has far-reaching consequences on approximation problems associated with xenology relations. Copyright © 2017, The Authors. All rights reserved.

关键词： Clustering algorithms

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New open source modules in KEEL to analyze and export fuzzy association rules

New open source modules in KEEL to analyze and export fuzzy ...

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IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)

作者： Alberto Segura Ramón Pérez-Pérez Jesús Alcalá-Fdez Dpt. of Computer Science and A.I University of Granada Granada Spain Provincial Fire Fighting Agency Delegation of Granada 18014 Spain Universidad de Granada Granada AndalucÃa ES

ISBN: (纸本)9781509006274

The KEEL software provides several methods to mine fuzzy association rules, however, few modules are available to study them. In this paper we introduce four new KEEL modules to analyze and export fuzzy association rules. Firstly, we present a module to calculate various interest measures for existing sets of fuzzy association rules in order to analyze rules on the basis of their potential interest to the user. Then, two visualization modules are proposed to generate different kinds of graphs from interest measures, making easier the analysis of the rules. Finally, we present a module to export obtained rules to the standard PMML in order to be able to take advantages of other software. The utility of these new modules is illustrated in a case study.

关键词： Software Data mining Algorithm design and analysis Databases Standards Graphical user interfaces Predictive models

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Submap bathymetric SLAM using structured light in underwater environments

Submap bathymetric SLAM using structured light in underwater...

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Symposium on Autonomous Underwater Vehicle Technology (AUV)

作者： Miquel Massot-Campos Gabriel Oliver Adrian Bodenmann Blair Thornton Dpt. of Mathematics and Computer Science University of the Balearic Islands Palma de Mallorca Spain Institute of Industrial Science University of Tokyo Tokyo Japan Southampton Marine and Maritime Institute University of Southampton Southampton UK

ISBN: (纸本)9781509024438

This article presents a bathymetric SLAM (simultaneous localization and mapping) solution for underwater vehicles by addressing the registration of point clouds gathered from single line laser-based structured light systems. While structured light can be applied to generate millimetre resolution seafloor bathymetry, the accuracy of the maps generated is typically constrained by the localization accuracy of the vehicles used. In this work, relative uncertainties in vehicle localisation are reduced by implementing bathymetric SLAM using temporally constrained submaps. We demonstrate that the method described can overcome misalignments by correcting errors in localisation and can be used to generate self-consistent high-resolution seafloor bathymetric maps.

关键词： Lasers Vehicles Uncertainty Simultaneous localization and mapping Three-dimensional displays Cameras Feature extraction

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