Kurt VARMUZA
Laboratory
for Chemometrics, Vienna University of Technology,
Austria
Selected Posters 2007 -
2020-02-28
2020
Varmuza K.*, Rados E., Herzig C., Limbeck
A., Pittenauer E., Allmaier
G., Filzmoser P.:
Vienna (Austria): 31st Mass Spec Forum Vienna, 2020-02-25 – 26 [VKP:202]
http://mass-spec-forum-vienna.conf.tuwien.ac.at
ICP-MS of
meteorite samples: Chemometric evaluation of
diversity and discrimination.
2019
Isnard R., Bardyn A., Briois C.*, Fray N., Baklouti D., Cottin H., Engrand C., Fischer H., Gardner E., Hornung K., Langevin Y., Lehto H., Le Roy L., Ligier N., Merouane S., Modica P., Orthous-Daunay F.R., Paquette J., Rynö J., Schulz R., Silén J., Siljeström S., Stenzel O., Thirkell L., Varmuza K., Zaprudin B., Kissel J., Hilchenbach M.:
19th
EANA Astrobiology Conference (EANA
2019), 3 - 6 Sept. 2019, Orléans, France [VKP:201]
67P/CG Dust particles
composition as measured by the COSIMA/Rosetta mass spectrometer.
Varmuza K.*, Filzmoser P., Fray N., Cottin H., Merouane S., Stenzel O., Kissel J., Briois C., Baklouti D., Bardyn A., Siljeström S., Silén J., Hilchenbach M.:
Conferentia Chemometrica 2019-09-08 – 12, Karcag, Hungary, http://cc2019.ttk.mta.hu/ [VKP:200]
Composition of cometary
particles versus distance to sun during
sample collection - based on multivariate evaluation of mass spectral data
(Rosetta/COSIMA).
Varmuza K.*, Filzmoser P., Hilchenbach M., Kissel J., Stenzel O., Merouane S., Paquette J., Hornung K., Cottin H., Fray N., Isnard R., Engrand C., Briois C., Thirkell L., Modica M., Langevin Y., Baklouti D., Bardyn A., Siljeström S., Silén J., Rynö J., Lehto H., Schulz R.:
20. Tagung Festkörperanalytik (FKA20, Conference
on Solid State Analysis), 1 - 3 July 2019, Vienna, Austria [VKP:199]
Cometary particle surfaces - characterized by chemometric
evaluation of secondary ion mass spectra.
PDF
file with 2 pages A4.
Varmuza K.*, Filzmoser P., Ortner I., Hilchenbach M., Kissel J., Merouane S., Paquette J., Stenzel O., Engrand C., Cottin H., Fray N., Isnard R., Briois C., Thirkell L., Baklouti D., Bardyn A., Siljeström S.,
Schulz R., Silén J., Brandstätter F., Ferrière L., Koeberl C.:
16th Scandinavian Symposium on Chemometrics (SSC16), 17 – 20 June 2019, Nesbru / Oslo, Norway [VKP:198]
One-class
classification for the recognition of relevant measurements - applied to mass
spectra from cometary and meteoritic particles.
PDF file with 8 pages.
Rados E.*, Pittenauer E., Frank J., Varmuza K., Allmaier G.:
ANAKON 2019, Gesellschaft Deutscher
Chemiker, 25 - 28 March 2019, Münster, Germany [VKP:197]
Analysis
of meteorites and meteorite-like materials (terrestrial forsterite)
doped with small organic molecules by LDI-MS using
three different analysers and SIMS.
PDF
file with 12 pages.
2018
Rados E.*, Pittenauer E., Frank J., Varmuza K., Allmaier G.:
22nd International Mass Spectrometry Conference 2018 (IMSC 2018), 2018-08-26 - 31, Florence, Italy [VKP:195]
A
multi-vendor applicable target system for (MA)LDI
instruments with distinct performance characteristics for the analysis of small
organic molecules related to carbonaceous chondrites.
PDF
file A4. Abstract.
Picture
from Conference.
Varmuza K.*, Filzmoser P., Hoffmann I., Hilchenbach M., Kissel J., Merouane S., Paquette J., Stenzel O., Cottin H., Fray N., Isnard R., Briois C., Modica P., Thirkell L., Engrand C., Baklouti D., Langevin Y., Bardyn A., Hornung K., Siljeström S., Rynö J., Silén J., Schulz R., Brandstätter F., Ferrière
L., Koeberl C.:
Vienna (Austria): 29th Mass Spec Forum Vienna, 2018-02-20 – 22 [VKP:194]
Mass spectrometry near
comet 67P (Rosetta/COSIMA).
2017
Varmuza K.*, Filzmoser P., Hoffmann
I., Walach J., Cottin H., Fray N., Briois C., Silén J., Stenzel O., Kissel J., Hilchenbach M.:
Gyöngyös-Farkasmály (Hungary): Conferentia Chemometrica 2017-09-03 – 06, http://cc2017.ttk.mta.hu [VKP:193]
Significance of variables for discrimination - applied to the search of
organic ions in mass spectra measured on cometary particles.
PDF
file (2.4 MB, 11 pages, incl. abstract); PDF
file A4.
Varmuza K.*, Baklouti D., Bardyn A., Cottin H., Engrand C., Filzmoser P., Fray N., Hilchenbach M., Hoffmann I., Kissel J., Modica P., Silén J., Siljeström S., Stenzel O.:
Naantali (Finland): 15th Scandinavian Symposium on Chemometrics
(SSC15), 2017-06-19 – 22,
http://ssc15.metropolia.fi/,
[VKP:192]
Comet dust composition explored by chemometric
methods using mass spectral data from COSIMA/ROSETTA.
PDF
file (5.5 MB, 9 pages, incl. abstract); PDF
file A4.
Varmuza K.*, Brandstätter F., Cottin H., Engrand C., Ferrière L., Filzmoser P., Fray N., Hilchenbach M., Hoffmann I., Kissel J., Koeberl C., Modica P.,
Paquette J., Stenzel O.:
Vienna (Austria): EGU 2017, European Geosciences Union General Assembly, http://www.egu2017.eu/, 2017-04-23 - 28. Geophysical Research Abstracts Vol. 19, EGU2017-2545, 2017. [VKP:191]
Elemental surface composition of comet 67P grains (Rosetta)
and of carbonaceous chondrite meteorites - characterized by multivariate mass
spectral data (COSIMA).
PDF
file (0.6 MB, poster A4 and abstract)
Varmuza K.*, Brandstätter F., Cottin H., Engrand C., Ferrière L., Filzmoser P., Fray N., Hilchenbach M., Hoffmann I., Kissel J., Koeberl C., Modica P.,
Paquette J., Stenzel O.:
Tübingen (Germany): ANAKON 2017, Gesellschaft Deutscher Chemiker, 2017-04-03 - 06 [VKP:190]
Comet
and meteorite particle surface characterization by multivariate data analyses
using TOF‐SIMS data from COSIMA/Rosetta.
PDF
file (1.8 MB)
2016
M. Hilchenbach,
J. Kissel, R. Schulz*, Y. Langevin,
C. Briois, A. Koch, J. Silén,
D. Baklouti, A. Bardyn, H.Cottin, C. Engrand, H. Fischer,
N. Fray, A. Glasmachers, E. Grün,
G. Haerendel, H. Henkel, H. Höfner,
K. Hornung, E.K. Jessberger, H. Lehto, K. Lehto, N. Ligier, P. Martin, S. Merouane, P. Modica, F.R. Orthous Daunay,
J. Paquette, F. Raulin, L. Le Roy, J. Rynö, S. Siljeström, W. Steiger, O. Stenzel, T. Stephan,
L. Thirkell, R. Thomas, K. Torkar, K. Varmuza, K.P.
Wanczek, B. Zaprudin:
Pasadena, CA (USA): DPS 48 / EPSC 11
Meeting, American Astronomical Society, 2016-10-16 – 21 [VKP:189]
ROSETTA/COSIMA at comet 67P/Churyumov-Gerasimenko
- 2 years of in-situ dust analysis.
O.J.
Stenzel*, J. Paquette, M. Hilchenbach,
J. Kissel, Y. Langevin, C. Briois, A. Koch, R. Schulz, J. Silén,
N. Altobelli, K. Altwegg,
L. Colangeli, H. Cottin, D.
Baklouti, A. Bardyn, C. Engrand, H. Fischer, N. Fray, A. Glasmachers,
E. Grün, G. Haerendel, H.
Henkel, H. Höfner, K. Hornung,
E.K. Jessberger, H. Lehto, K. Lehto, N. Ligier, Z. Lin, P. Martin, S. Merouane,
F.R. Orthous-Daunay, F. Raulin, C. Revillet, L. Le Roy,
J. Rynö, S. Siljeström, W. Steiger, T. Stephan, L. Thirkell,
R. Thomas, K. Torkar, K. Varmuza, K.P. Wanczek, B. Zaprudin:
Leiden (The Netherlands): 50th ESLAB Symposium (European Space Agency,
ESA), From Giotto to Rosetta, 2016-03-14 – 18 [VKP:188]
Alkali metals in cometary particles – what is the chemical context?
Korinek G.*, Pittenauer E., Varmuza
K., Allmaier G.:
Vienna (Austria): 27th Mass Spec Forum Vienna, 2016-02-23 – 24 [VKP:187]
LDI-RTOFMS of organic
matter in the study of meteorites.
Hoffmann I., Brandstätter F., Engrand C., Ferrière L., Filzmoser P., Hilchenbach M., Koeberl C., Varmuza K.*:
Vienna (Austria): 27th Mass Spec Forum Vienna, 2016-02-23 – 24 [VKP:186]
Meteorite classification
by TOF-SIMS-chemometrics.
PDF file (1 MB), abstract of poster.
2015
Varmuza K.*, Hoffmann I., Filzmoser
P., Brandstätter F., Engrand C., Ferrière L., Hilchenbach M., Koeberl C., Paquette
J., Silén J., Stenzel O.:
Vienna (Austria): Conference
on Solid State Analytics (18.
Tagung Festkörperanalytik -
FKA18), 2015-07-06 – 07-08 [VKP:184]
Recognition of relevant spectra in TOF-SIMS measurements on meteorite
and comet grain samples by a chemometric approach.
PDF file (2.8 MB) of poster.
Varmuza K.*, Filzmoser P., Hilchenbach M., Hoffmann I., Kissel J., Silén J.:
Chia, Sardinia (Italy): 14th Scandinavian Symposium on Chemometrics (SSC14), 2015-06-14 to 06-17 [VKP:183]
Selected chemometric approaches for mass
spectra from comet dust grains (Rosetta).
PDF: see similar poster no. 184 (listed above).
Stenzel O.J.*, Varmuza K., Engrand
C., Ferrière L., Brandstätter
F., Koeberl C., Filzmoser
P., Paquette J., Hilchenbach
M.:
The
Woodlands, Texas (USA): 46th Lunar and Planetary Science Conference (LPSC),
2015-03-16 to 03-20 [VKP:182]
Using meteorite samples as a
test for correlation based analysis of SIMS data from cometary grains.
PDF file (2.2 MB) of poster.
2014
C. Engrand*, D. Baklouti, C. Briois, H. Cottin, H. Fischer, N. Fray, M.
Godard, H. Henkel, M. Hilchenbach, K. Hornung, J. Kissel, A. Koch, Y. Langevin, H. Lehto, S. Merouane, F. R. Orthous-Daunay,
J. Rynö, R. Schulz, J. Silén,
S. Siljeström, T. Stephan,
L. Thirkell, K. Varmuza:
San
Francisco, CA (USA), 2014 AGU Fall
Meeting of the American Geophysical Union, 2014-12-15 to 12-19 [VKP:181]
On the inorganic composition
of cometary dust from comet 67P/Churyumov-Gerasimenko,
as seen by COSIMA onboard Rosetta.
M. Hilchenbach, J. Kissel, C. Briois, H. von Hoerner, Y. Langevin, R. Schulz*,
J. Silén, K. Altwegg, L. Colangeli, H. Cottin, C. Engrand, A. Glasmachers, E. Grün, G. Haerendel, H. Henkel, H.
Höfner, K. Hornung, E. K. Jessberger, A. Koch, H. Lehto, K.
Lehto, F. Raulin, L. Le Roy, J. Rynö, W. Steiger, T. Stephan, L. Thirkell, R. Thomas, K. Torkar, K. Varmuza, K. P. Wanczek:
Tucson, Arizona (USA): 46th Annual Meeting of the Division for
Planetary Sciences of the American
Astronomical Society (DPS-2014),
2014-11-09 to 11-14 [VKP:180]
COSIMA - Cometary Dust
Analysis in the inner coma of Comet 67P/Churyumov-Gerasimenko.
Stenzel O.*, Varmuza K., Engrand C., Ferrière
L., Brandstätter F., Koeberl C., Filzmoser
P., Hilchenbach M.:
Helsinki
(Finland): ACM 2014 (Asteroids,
Comets, Meteors), 2014-06-30
to 07-04 [VKP:179]
Characterisation of meteoritic samples with the Rosetta Cosima TOF-SIMS laboratory
reference model - a covariance approach.
PDF file (1.7 MB) of poster.
2013
Varmuza K., Dehmer M., Filzmoser P.:
Sopron
(Hungary): Conferentia Chemometrica 2013, 2013-09-08 to 09-11 [VKP:178]
Empirical modeling of mass spectral features by molecular descriptors.
PDF file (1.8 MB) of poster.
Hilchenbach M., Briois
C., Cottin H., Engrand C.,
Hornung K., Kissel J., Krüger H., Lehto H.J., Lehto K., Silen J., Thirkell L., Varmuza
K.:
The
Woodlands, Texas (USA): 44th Lunar
and Planetary Science Conference (LPSC), 2013-03-18 to 03-22 [VKP:177]
Laboratory secondary ion mass
spectra of cometary analog matter.
PDF file (1.8 MB) of poster.
2012
Varmuza K., Liebmann B., Filzmoser
P.:
Budapest
(Hungary): 13th International Conference on Chemometrics
in Analytical Chemistry - CAC 2012,
2012-06-25 to 06-29 [VKP:176]
Repeated
double cross validation for optimization and evaluation of empirical
classifiers.
PDF file (2 MB) of poster.
Liebmann B., Todeschini R., Consonni V., Filzmoser P., Varmuza K.:
Budapest
(Hungary): 13th International Conference on Chemometrics
in Analytical Chemistry - CAC 2012,
2012-06-25 to 06-29 [VKP:175]
Variable selection by the LASSO method.
PDF file (1 MB) of poster.
2011
Liebmann B., Friedl A., K. Varmuza:
Sümeg (Hungary): Conferentia Chemometrica 2011,
2011-09-18 to 09-21 [VKP:174]
COSMO data and conventional molecular
descriptors compared by redundancy analysis.
PDF file (1.9 MB) of poster.
Liebmann B., Rodrigues J.F.C., Friedl A., K. Varmuza:
Sümeg (Hungary): Conferentia Chemometrica 2011,
2011-09-18 to 09-21 [VKP:173]
NIR spectroscopy and chemometrics
for ionic liquids: Lignocellulosic biomass dissolution.
PDF file (3.7 MB) of poster.
K. Varmuza, M. Dehmer:
Sümeg (Hungary): Conferentia Chemometrica 2011,
2011-09-18 to 09-21 [VKP:172]
Uniqueness of numerical molecular descriptors
for organic compounds.
PDF file (500 kB) of poster.
2010
K. Varmuza, P. Filzmoser, M. Hilchenbach, J.
Kissel, H. Krüger, J. Silén:
Antwerp
(Belgium): 12th International Conference
on Chemometrics in Analytical Chemistry - CAC 2010,
2010-10-18 to 10-21 [VKP:171]
Random projection
for dimensionality reduction - applied to TOF-SIMS data.
PDF file (201 kB) of poster.
K. Varmuza, P. Filzmoser, M. Dehmer:
Rabat
(Morocco): First African-European Conference on Chemometrics
2010, 2010-09-21
to 09-24 [VKP:170]
Statistical evaluation of molecular descriptors used in
quantitative-structure-activity relationships.
PDF file (249 kB) of poster.
E.P. Zayas, K. Varmuza, I. Talavera,
M. Lorenzo, M.C. Vasallo:
Havana
(Cuba): V Congreso
Latinoamericano de Profesionales
y Estudiantes de Ciencia y Tecnologia de los Alimentos,
2010-05-24 to 05-26 [VKP:169]. Proceedings CD, ISBN 978-959-7003-28-1.
Clasificación multivariante de rones con empleo de la espectroscopia infrarroja cercana (Spanish).
Multivariate classification of rum employing
near infrared spectroscopy.
PDF file (Spanish, 58 kB) of poster; PDF file (English, 8 kB) of abstract.
2009
K. Varmuza, P. Filzmoser, B. Liebmann:
Siófok (Hungary): Conferentia Chemometrica 2009, 2009-09-27 to 09-30 [VKP:168]
Random projection and projection pursuit based PCA applied to chemical
data.
PDF file (118 kB) of poster.
B. Liebmann, A. Friedl, K. Varmuza:
Vienna
(Austria): 13th Austrian Chemistry Days, 2009-08-24 to 08-27 [VKP:167]
Near-infrared spectroscopy and chemometrics
in bioethanol production.
PDF 13 pages (0.7 MB) of poster.
B. Liebmann, A. Friedl, K. Varmuza:
Loen/Stryn (Norway): 11th Scandinavian Symposium on Chemometrics, 2009-06-08 to 06-11 [VKP:165]
Quantitative analysis by near-infrared spectroscopy of compounds
relevant in bioethanol production.
PDF 14 pages (0.7 MB) or PDF 1 page (1.4 MB) of poster.
2008
Varmuza K.,
Dehmer M., Borgert S.:
Goslar
(Germany): 4th German Conference on Chemoinformatics
- 22nd CIC-Workshop, 2008-11-09 to 2008-11-11 [VKP:164].
Molecular
descriptors based on entropy and the full topological neighborhood of all
atoms.
PDF file of
poster (154 kB).
Varmuza K., Filzmoser
P.:
Goslar
(Germany): 4th German Conference on Chemoinformatics
- 22nd CIC-Workshop, 2008-11-09 to 2008-11-11 [VKP:163].
Comparison of some linear
regression methods - available in R - for a QSPR problem.
PDF file of
poster (296 kB).
Schäning A.,
Schreiner M., Varmuza K.:
Balatonalmádi (Hungary): 4th International Symposium on
Computer Applications and Chemometrics in Analytical
Chemistry - SCAC 2008, 2008-09-01 to 2008-09-04 [VKP:162].
Classification of synthetic organic pigments
from FT infrared spectral data.
PDF file
of poster (736 kB).
Liebmann B., Friedl A., Varmuza K.:
Balatonalmádi (Hungary): 4th International Symposium on
Computer Applications and Chemometrics in Analytical
Chemistry - SCAC 2008, 2008-09-01 to 2008-09-04 [VKP:161].
Application of
near-infrared spectroscopy and chemometrics in
bioethanol production.
PDF file
of poster (370 kB).
Varmuza K., Filzmoser
P.:
Balatonalmádi (Hungary): 4th International Symposium on
Computer Applications and Chemometrics in Analytical Chemistry
- SCAC 2008,
2008-09-01 to 2008-09-04 [VKP:160].
Repeated double cross
validation for estimation of prediction errors.
PDF file of
poster (145 kB).
Krüger
H., Briois C., Engrand C.,
Fischer H., Hilchenbach M., Kissel
J., Martin P., Rynö J., Stephan T., Thirkell L., Thomas R., Varmuza
K.:
Montreal
(Canada): 37th COSPAR Scientific Assembly, 2008-07-13 to 2008-07-20 [VKP:159].
An automatic pipeline processing software for secondary ion
time-of-flight mass spectra of Rosetta/COSIMA.
PDF file
of poster (493 kB).
Felkel J.,
Dörr N., Leimeter T., Novotny-Farkas F., Varmuza K.:
Montpellier
(France): 11th International Conference on Chemometrics
in Analytical Chemistry - CAC 2008, 2008-06-30 to 2008-07-04 (2008) [VKP:157].
Characterization of
gas engine oils by IR and chemometrics.
PDF file of poster (118 kB).
Varmuza K.,
Dehmer M., Borgert S.:
Verbania-Intra (Italy): MATH/CHEM/COMP
2008, 2008-06- to 2008-06-13 (2008) [VKP:156].
New topological
information indices based on the full neighborhood of all atoms.
PDF file of poster
(72 kB).
2007
Liebmann B., Friedl A., Varmuza K.:
Budapest (Hungary): Conferentia Chemometrica
2007, 2007-09-02 to 09-07 (2007) [VKP:152].
Prediction of
the heating value of biomass fuel from IR and NIR data.
PDF file
of poster (90 kB).
Varmuza K.,
Liebmann B., Friedl A.:
Plovdiv (Bulgaria): 6th
Chemistry Conference, 2007-06-20 to 06-22 (2007) [VKP:150].
Estimation of the heating
value of biomass fuel from the elemental composition and infrared data.
PDF file of poster
(144 kB).
Liebminger A., Seyfang
L., Filzmoser P., Varmuza K.:
Lappeenranta (Finland): 10th Scandinavian Symposium
on Chemometrics, 2007-06-11 to 06-15 (2007) [VKP:149].
A new variable selection method based on all subsets
regression.
PDF file of
poster (107 kB).
Krüger H., Engrand C., Fischer
H., Hilchenbach M., Hornung K., Kissel J., Stephan T., Thirkell L., Thomas R., Trieloff
M., Varmuza K.:
Vienna (Austria): European Geosciences Union, General Assembly 2007,
2007-04-15 to 04-20 (2007) [VKP:148].
Laboratory calibration of Rosetta/COSIMA: Preparation for comet 67P/Churyumov-Gerasimenkov.
PDF file of poster (227
kB).