Robustness of Shape Descriptors and Dynamics of Learning Vector Quantization (2008)
Anarta Ghosh, C Anarta Ghosh, Promotor Prof, N. Petkov, Copromotor Dr. M. Biehl, ...
ter verkrijging van het doctoraat in de Wiskunde en Natuurwetenschappen aan de Rijksuniversiteit Groningen op gezag van de Rector Magnificus, dr. F. Zwarts, in het openbaar te verdedigen op maandag...
Margin based Active Learning for LVQ Networks (2008)
Abstract. In this article, we extend a local prototype-based learning model by active learning, which gives the learner the capability to select training samples and thereby increase speed and...
Tutorial: Perspectives on Learning with RNNs (2008)
Abstract. We present an overview of current lines of research on learning with recurrent neural networks (RNNs). Topics covered are: understanding and unification of algorithms, theoretical...
Margin based Active Learning for LVQ Networks (2008)
Abstract. In this article, we extend a local prototype-based learning model by active learning, which gives the learner the capability to select training samples and thereby increase speed and...
Prototype Based Classification Using Information Theoretic Learning (2008)
Th. Villmann, B. Hammer, T. Geweniger, T. Fischer, M. Cottrell
Abstract. In this article we extend the (recently published) unsupervised information theoretic vector quantization approach based on the Cauchy–Schwarz-divergence for matching data and prototype...
1 University Leipzig, Cl. for Psychotherapy (2008)
T. Villmann, B. Hammer, T. Geweniger, Bruker Daltonik
Abstract- We extend neural gas for supervised fuzzy classification. In this way we are able to learn crisp as well as fuzzy clustering, given labeled data. Based on the neural gas cost function, we...
Parallel Ab-Initio Molecular Dynamics (2007)
Abstract. The Car-Parrinello ab-initio molecular dynamics method is heavily used in studies of the properties of materials, molecules etc. Our Car-Parrinello code, which is being continuously...
The generalization ability of discrete time partially recurrent networks is examined: As well known, the VC dimension of recurrent networks is generally infinite. Hence the standard analysis does not...
M. Vidyasagar, S. Balaji, B. Hammer, Tata Consultancy Services
Open Problem No. 12.2 of [8] asks: \Are the properties of uniform convergence of empirical means, and learnability preserved when the family of probability measures is replaced by its...
Tutorial: Perspectives on Learning with RNNs (2007)
Abstract. We present an overview of current lines of research on learning with recurrent neural networks (RNNs). Topics covered are: understanding and unification of algorithms, theoretical...
2 Clinic for Psychotherapy, University of Leipzig, Germany; (2007)
B. Hammer, A. Rechtien, M. Strickert, T. Villmann
Generalized Relevance Learning Vector Quantization (GRLVQ) constitutes a prototype based clustering algorithm, a modification of LVQ with data-adapted diagonal metric and explicit cost function. We...
Understanding the disorder in the assembly of the DNA base cytosine on the Au(111) surface. (2006)
Schöck, M., Otero, R., Kelly, R.E.A., Kantorovich, L.N., Rauls, E., Xu, W., ...
Internat.Conf.on Nanoscience and Technology (ICN+T), Basel, CH, July 30 - August 4, 2006
T. Villmann, B. Hammer, Bruker Daltonik Gmbh, Permoser Straße
The paper deals with the concept of relevance learning in learning vector quantization.
Mathematical aspects of neural networks (2003)
Abstract. In this tutorial paper about mathematical aspects of neural networks, we will focus on two directions: on the one hand, we will motivate standard mathematical questions and well studied...
Hammer, B, Scheller, B, Böhm, M, Hennen, B
No abstract available.
Oxygen dissociation at Pt steps (2001)
Gambardella, P., Sljivancanin, Z., Hammer, B., Blanc, M., Kuhnke, K., Kern, K.
Kinetics of fast island decay on Ag(111) (2001)
Morgenstern, K., Rosenfeld, G., Comsa, G., Sorensen, M.R., Hammer, B., Laegsgaard, E., ...
The kinetics of fast island decay on Ag(111) close to steps has been studied in scanning tunneling microscopy experiments and atomistic total energy calculations. We show that a breakdown of the...
Oxygen Dissociation at Pt Steps (2001)
Blanc, M., Gambardella, P., Hammer, B., Kuhnke, K., Sljivancanin, Z.
Neural networks can approximate mappings on structured objects (1997)
Abstract: The folding architecture is a universal mechanism to approximate mappings between trees and real vector spaces with a neural network. The part encoding the trees and the part approximating...
The Current Energy Situation: Summary Points (1996)
Hafemeister, David W., Brecher, A., Fainberg, A., Howes, R., Socolow, R., Bodansky, D., ...
Energy problems are now being largely ignored, despite their continuing importance. The near-disappearance of energy from the U.S. public agenda is apparent in the scant attention given to energy...
A direct pathway for sticking/desorption of H$_2$ on Si(100) (1995)
Kratzer, P., Hammer, B., Norskov, J. K.
The energetics of H$_2$ interacting with the Si(100) surface is studied by means of {\em ab initio} total energy calculations within the framework of density functional theory. We find a direct...
The interaction of hydrogen with the (110) surface of NiAl (1995)
Hanbicki,A. T., Baddorf,A. P., Plummer,E. W., Hammer,B., Scheffler,M.
The interaction of hydrogen with the (110) surface of NiAl (1995)
Hanbicki, A. T., Baddorf, A. P., Plummer, E. W., Hammer, B., Scheffler, M.
High-dimensional quantum dynamics of adsorption and desorption of H$_2$ at Cu(111) (1994)
Gross, A., Hammer, B., Scheffler, M., Brenig, W.
We performed high-dimensional quantum dynamical calculations of the dissociative adsorption and associative desorption of hydrogen on Cu(111). The potential energy surface (PES) is obtained from...
Colony immunoblot assay of botulinal toxin.
Goodnough, M C, Hammer, B, Sugiyama, H, Johnson, E A
Botulinal neurotoxin in and around colonies of Clostridium botulinum types A, B, and E and of toxigenic Clostridium butyricum was detected by an enzyme-linked immunoassay procedure whereby the toxin...
Colony immunoblot assay of botulinal toxin.
Goodnough, M C, Hammer, B, Sugiyama, H, Johnson, E A
Botulinal neurotoxin in and around colonies of Clostridium botulinum types A, B, and E and of toxigenic Clostridium butyricum was detected by an enzyme-linked immunoassay procedure whereby the toxin...
Blum, A L, Bethge, H, Bode, J C, Domschke, W, Feurle, G, Hackenberg, K, ...
A randomised controlled multicentre trial was performed in 160 patients with gastric ulcer, proved by endoscopy and biopsy, to compare ulcer healing with sucralfate and ranitidine (double blind...