BeataWalczak

Research page of Prof. Beata Walczak




Curriculum vitae

Fellowships

Main scientific interests

Research co-operation

Selected scientific and teaching activities

List of published articles and book chapters:

  1. F. Marini, D. de Beer, N. A. Walters, A. de Villiers, E. Joubert, B. Walczak, Multivariate analysis of variance of designed chromatographic data. A case study involving fermentation of rooibos tea , J. Chromatogramphy A, 1489 (2017) 115-125
    IF=3.926
  2. S. C. Bosman, D. de Beer, T. Beelders, E. L. Willenburg, C. J. Malherbe, B. Walczak, E. Joubert, Simultaneous optimisation of extraction of xanthone and benzophenone alfa-glucosidase inhibitors from Cyclopia genistoides and identification of superior genotypes for propagation, Journal of Functional Food, 33 (2017) 21-31
    IF=3.973
  3. A. Dworak, M. Nykiel, B. Walczak, A. Miazek, D. Szworst-Lupina, B. Zagdanska, M. Kielkiewicz, Maize proteomic responses to separate or overlapping soil drought and two-spoted spider mite stresses, Planta, 244 (2016) 939-960
    IF=3.239
  4. F. Marini, B. Walczak, Particle Swarm Optimization (PSO). A tutorial, Chemometrics and Intelligent Laboratory Systems, 149 (2015) 153-165
    IF=2.321
  5. F. Marini, D. de Beer, E. Joubert, B. Walczak, Analysis of variance of designed chromatographic data sets: The analysis of variance-target projection approach, Journal of Chromatography A, 1405 (2015) 94-102
    IF=4.169
  6. K. Kocot, R. Leardi, B. Walczak, R. Sitko, Determination and speciation of trace and ultratrace selenium ions by energy-dispersive X-ray fluorescence spectrometry using graphene as solid adsorbent in dispersive micro-solid phase extraction, Talanta 134 (2015) 360-365
    IF = 3.511
  7. P. Filzmoser, B. Walczak, What can go wrong at the data normalization step for identification of biomarkers?, J. Chromatography A, 1362 (2014) 194-205
    IF = 4.258
  8. R. Tauler, F. Marini, B. Walczak, L. Buydens, R. G. Brereton, W. Buchberger, P. J. Worsfold, European Analytical Column No. 42, Chemometrics and analytical chemistry, Analytical and Bioanalytical Chemistry, 406 (2014) 3525-3529
    IF = 3.66
  9. J. Orzel, M. Daszykowski, M. Kazura, D. Beerb, E. Joubertb, A. E. Schulzec, T. Beeldersc, A. de Villiersd, C. J. Malherbeb, B. Walczak, Modeling of the total antioxidant capacity of rooibos (Aspalathus linearis) tea infusions from chromatographic fingerprintsand identification of potential antioxidant markers , Journal of Chromatography A, 1366 (2014) 101-109
    IF = 4.258
  10. I. Stanimirova, M. Kazura, D. de Beer, E. Joubert, A.E. Schulze, T. Beelders, A. de Villiers, B. Walczak, High-dimensional nested analysis of variance to assess the effect of production season, quality grade and steam pasteurization on the phenolic composition of fermented rooibos herbal tea, Talanta, 115 (2013) 590-599
    IF=3.498
  11. I. Stanimirova, M. Daszykowski, B. Walczak, Robust Methods in Analysis of Multivariate Food Chemistry Data. In Federico Marini, editors: Chemometrics in Food Chemistry, Vol 28, DHST, Chennai: Elsevier, 2013, pp. 315-340
  12. V. Shapaval, B. Walczak, S. Gognies, T. Moretro, H. P. Suso, A. Wold Asli, A. Belarbie A. Kohler, FTIR spectroscopic characterization of differently cultivated food related yeasts, Analyst, 138 (2013) 4129-4138
    IF=3.969
  13. P. Zerzucha, M. Kazura, D. de Beer, E. Joubert, A.E. Schulze, T. Beelders, A. de Villiers, B. Walczak, A new concept for variance analysis of hyphenated chromatographic data avoiding signal warping, Journal of Chromatography A, 1291 (2013) 64-72
    IF=4.612
  14. J. Orzel, M. Daszykowski, I. Grabowski, G. Zaleszczyk, M. Sznajder, B. Walczak, Simultaneous determination of solvent yellow 124 and solvent red 19 using fluorescence spectroscopy and chemometrics, Talanta, 101 (2012) 78-84
    IF=3.794
  15. P. Zerzucha, B. Walczak, Concept of (dis)similarity in data analysis, Trends in Analytical Chemistry, 38 (2012) 116-128
    IF=6.351
  16. P. Zerzucha, B. Walczak, Again about PLS and feature selection, Chemometrics and Intelligent Laboratory Systems, 115 (2012) 9-17
    IF=2.291
  17. P. Zerzucha, D. Boguszewska, B. Zagdanska, B. Walczak, Non-parametric multivariate analysis of variance in proteomic response of potato to the drought stress, Analytica Chimica Acta, 719 (2012) 1-7
    IF=4.387
  18. J. Orzel, M. Daszykowski, B. Walczak, Controlling sugar quality on the basis of fluorescence fingerprints using robust calibration, Chemometrics and Intelligent Laboratory Systems, 110 (2012) 89-93
    IF=2.291
  19. P. Zerzucha, M. Daszykowski, B. Walczak, Dissimilarity partial least squares applied to non-linear modeling problems, Chemometrics and Intelligent Laboratory Systems, 110 (2012) 156-162
    IF=2.291
  20. I. Stanimirova, R. Tauler, B. Walczak, A comparison of positive matrix factorization and the weighted multivariate curve resolution method. Application to environmental data, Environmental Science & Technology 45 (2011) 10102-10110
    IF=4.825
  21. M. Daszykowski, J. Orzel, M.S. Wrobel, H. Czarnik-Matusewicz, B. Walczak, Improvement of classification using robust soft classification rules for near-infrared reflectance spectral data, Chemometrics and Intelligent Laboratory Systems, 109 (2011) 86-93
    IF=2.222
  22. F. Marini, B. Walczak, Finding relevant clustering directions in high-dimensional data using Particle Swarm Optimization, Journal of Chemometrics, 25 (2011) 366-374
    IF=1.377
  23. I. Stanimirova, K. Michalik, Z. Drzazga, P.D. Wentzell, B. Walczak, Interpretation of ANOVA models using PCA to assess the effect of a maternal anticancer treatment on the mineralization of rat bones, Analytica Chimica Acta, 689 (2011) 1-7
    IF=3.757
  24. I. Stanimirova, C. Boucon, B. Walczak, Relating gas chromatographic profiles to sensory measurements describing the end products of the Maillard reaction, Talanta, 83 (2011) 1239-1246
    IF=3.257
  25. M. Daszykowski, B. Walczak, Methods for the exploratory analysis of two-dimensional chromatographic signals, Talanta 83 (2011) 1088-1097
    IF=3.257
  26. B. Walczak, M. Daszykowski, Chemometria w proteomice i metabolomice, in Proteomika i metabolomika, A. Kraj, A. Drabik, J. Silberring (Eds.), WUW, Warszawa, 2010
  27. R. Polanski, B. Walczak, Estimation of the number of true null hypotheses when conducting a multiple testing, Chemometrics and Intelligent Laboratory Systems, 104 (2010) 281-288
    IF=2.111
  28. M. Daszykowski, A. Bierczynska-Krzysik, J. Silberring, B. Walczak, Avoiding spots detection in analysis of electrophoretic gel images, Chemometrics and Intelligent Laboratory Systems, 104 (2010) 2-7
    IF=2.111
  29. M. Daszykowski, Y. Vander Heyden, C. Boucon, B. Walczak, Automated alignment of one-dimensional chromatographic fingerprints, Journal of Chromatography A, 1217 (2010) 6127-6133
    IF=4.101
  30. A.J. Charlton, M.S. Wrobel, I. Stanimirova, M. Daszykowski, H. Grundy, B. Walczak, Multivariate discrimination of wines with respect to their grape varieties and vintages, European Food Research and Technology, 231 (2010) 733-743
    IF=1.370
  31. M. Daszykowski, I. Stanimirova, B. Walczak, Robust methods in QSAR, in Recent Advances in QSAR Studies: Methods and Applications, M.T.D. Cronin, J. Leszczynski, T. Puzyn (Eds.), Springer, 2010
  32. I. Stanimirova, B. Ustun, T. Cajka, K. Riddellova, J. Hajslova, L.M.C. Buydens, B. Walczak, Tracing the geographical origin of honeys using the GCxGC-MS and pattern recognition techniques, Food Chemistry, 118 (2010) 171-176
    IF=2.696
  33. M. Daszykowski, M. Sajewicz, J. Rzepa, M. Hajnos, D. Staszek, L. Wojtal, T. Kowalska, M. Waksmundzka-Hajnos, B. Walczak, Comparative analysis of chromatographic fingerprints of twenty different sage (Salvia L.) species, Acta Chromatographica, 4 (2009) 513-530
    IF=0.621
  34. P.K. Suder, A. Bodzon-Kulakowska, P. Mak, A. Bierczynska-Krzysik, M. Daszykowski, B. Walczak, G. Lubec, J.H. Kotlinska, J. Silberring, The proteomic analysis of primary cortical astrocyte cell culture after morphine administration, Journal of Proteome Research, 8 (2009) 4633-4640
    IF=5.684
  35. A. Bodzon-Kulakowska, P. Suder, P. Mak, A. Bierczynska-Krzysik, G. Lubec, B. Walczak, J. Kotlinska, J. Silberring, Proteomic analysis of striatal neuronal cell cultures after morphine administration, Journal of Separation Science, 32 (2009) 1200-1210
    IF=2.746
  36. M. Daszykowski, M.S. Wrobel, A. Bierczynska-Krzysik, J. Silberring, G. Lubec, B. Walczak, Automatic preprocessing of electrophoretic images, Chemometrics and Intelligent Laboratory Systems, 97 (2009) 132-140
    IF=1.940
  37. M. Daszykowski, E. Mosleth Faegestad, H. Grove, H. Martens, B. Walczak, Matching 2D gel electrophoresis images with Matlab 'Image Processing Toolbox', Chemometrics and Intelligent Laboratory Systems, 96 (2009) 188-195
    IF=1.940
  38. I. Stanimirova, A. Kita, E. Malkowski, E. John, B. Walczak, N-way exploration of environmental data obtained from sequential extraction procedure, Chemometrics and Intelligent Laboratory Systems, 96 (2009) 203-209
    IF=1.940
  39. S.D. Brown, R. Tauler, B. Walczak, Comprehensive Chemometrics, a four-set volume, Elsevier, Amsterdam, 2009
  40. M. Daszykowski, B. Walczak, Density-based clustering methods, S.D. Brown, R. Tauler, B. Walczak, Eds., in "Comprehensive Chemometrics", vol. 2, Elsevier, 2009, pp. 635-654
  41. M. Daszykowski, B. Walczak, Analiza czynnikow glownych i inne metody eksploracji danych, in A. Parczewski and D. Zuba, eds., Chemometria w analityce, IES, Krakow 2008 (ISBN 83-87425-13-3)
  42. I. Stanimirova, M. Daszykowski, B. Walczak, Metody uczenia z nadzorem - kalibracja, dyskryminacja i klasyfikacja, in A. Parczewski and D. Zuba, eds., Chemometria w analityce, IES, Krak??2008 (ISBN 83-87425-13-3)
  43. M. Daszykowski, M.S. Wrobel, H. Czarnik-Matusewicz, B. Walczak, Near-infrared reflectance spectroscopy and multivariate calibration techniques applied to model the protein, fiber and fat contents in rapeseed meal, The Analyst, 133 (2008) 1523-1531
    IF=3.761
  44. T.R.M. De Beer, C. Bodson, B. Dejaegher, B. Walczak, P. Vercruysse, A. Burggraeve, A. Lemos, L. Delattre, Y. Vander Heyden, J.P. Remon, C. Vervaet, W.R.G. Baeyens, Raman spectroscopy as a process analytical technology (PAT) tool for the in-line monitoring and understanding of a powder blending process, Journal of Pharmaceutical and Biomedical Analysis, 48 (2008) 772-779
    IF=2.629
  45. M. Daszykowski, M. Hawryl, M. Waksmundzka-Hajnos, B. Walczak, Identification of similar and orthogonal chromatographic thin layer systems for two-dimensional separations of flavonoids and their analogues, Acta Chromatographica, 20 (2008) 283-307
    IF=0.621
  46. I. Stanimirova, B. Walczak, Classification of data with missing elements and outliers, Talanta, 76 (2008) 602-609
    IF=3.374
  47. T. Czekaj, W. Wu, B. Walczak, Classification of genomic data: some aspects of feature selection, Talanta, 76 (2008) 564-574
    IF=3.206
  48. M. Daszykowski, R. Danielsson, B. Walczak, No-alignment-strategies for exploring a set of two-way data tables obtained from capillary electrophoresis-mass spectrometry, Journal of Chromatography A, 1192 (2008) 157-165
    IF=3.641
  49. I. Stanimirova, A. Kubik, B. Walczak, J.W. Einax, Discrimination of biofilm samples using pattern recognition techniques, Analytical and Bioanalytical Chemistry, 390 (2008) 1273-1282 -> get pdf
    IF=3.328
  50. M. Daszykowski, B. Walczak, Target selection for alignment of chromatographic signals obtained using monochannel detectors, Journal of Chromatography A, 1176 (2007) 1-11*
    IF=3.641
  51. M. Daszykowski, Y. Vander Heyden, B. Walczak, Robust partial least squares model for prediction of green tea antioxidant capacity from chromatograms, Journal of Chromatography A, 1176 (2007) 12-18*
    IF=3.641
  52. E.M. Faergestad, M. Rye, B. Walczak, L. Gidskehaug, J.P. Wold, H. Grove, X. Jia, K. Hollung, U.G. Indahl, F. Westad, F. van den Berg, H. Martens, Pixel-based analysis of multiple images for the identification of changes: A novel approach applied to unravel proteome patters of 2-D electrophoresis gel images, Proteomics, 7 (2007) 3450-3461
    IF=5.479
  53. I. Stanimirova, M. Polowniak, R. Skorek, A. Kita, E. John, F. Buhl, B. Walczak, Chemometric analysis of the water purification process data, Talanta, 74 (2007) 153-162
    IF=3.374
  54. M. Daszykowski, W. Wu, A.W. Nicholls, R.J. Ball, T. Czekaj, B. Walczak, Identifying potential biomarkers in LC-MS data, Journal of Chemometrics, 21 (2007) 292-302*
    IF=1.367
  55. M. Daszykowski, I. Stanimirova, A. Bodzon-Kulakowska, J. Silberring, G. Lubec, B. Walczak, The start-to-end processing of two-dimensional gel electrophoretic images, Journal of Chromatography A, 1158 (2007) 306-317
    IF=3.641
  56. M. Daszykowski, K. Kaczmarek, I. Stanimirova, Y. Vander Heyden, B. Walczak, Robust SIMCA - bounding influence of outliers, Chemometrics and Intelligent Laboratory Systems, 87 (2007) 121-129*
    IF=2.450
  57. I. Stanimirova, M. Daszykowski, B. Walczak, Dealing with missing values and outliers in principal component analysis, Talanta, 72 (2007) 172-178*
    IF=3.374
  58. M. Daszykowski, S. Serneels, K. Kaczmarek, P. Van Espen, C. Croux, B. Walczak, TOMCAT: a MATLAB toolbox for multivariate calibration techniques, Chemometrics and Intelligent Laboratory Systems, 85 (2007) 269-277*
    IF=2.063
  59. M. Daszykowski, K. Kaczmarek, Y. Vander Heyden, B. Walczak, Robust statistics in data analysis - a review. Basic concepts, Chemometrics and Intelligent Laboratory Systems, 85 (2007) 203-219*
    IF=2.063
  60. I. Stanimirova, S. Serneels, P.J. Van Espen, B. Walczak, How to construct a multiple regression model for data with missing elements and outlying objects, Analytica Chimica Acta, 581 (2007) 324-332
    IF=3.186
  61. M. Daszykowski, B. Walczak, Use and abuse of chemometrics in chromatography, Trends in Analytical Chemistry, 25 (2006) 1081-1096
    IF=5.068
  62. X. Capron, B. Walczak, O.E. de Noord, D.L. Massart, A modification of ICOMP criterion for estimation of PCR model complexity, Journal of Chemometrics, 19 (2005) 308-316
    IF=1.875
  63. T. Czekaj, W. Wu, B. Walczak, About kernel latent variable approaches and SVM, Journal of Chemometrics, 19 (2005) 341-354
    IF=1.875
  64. B. Walczak, Book Review: Statistical treatment of analytical data, Zeev B. Alfassi, Zvi Boger and Yigal Ronen, Blackwell Publishing, Oxford, UK, 2004, 272 pages, ISBN 0-63-205367-4, Trends in Analytical Chemistry, 24 (2005) V
    IF=4.088
  65. M. Daszykowski, I. Stanimirova, B. Walczak, F. Daeyaert, M.R. de Jonge, J. Heeres, L.M.H. Koymans, P.J. Lewi, H.M. Vinkers, P.A. Janssen, D.L. Massart, Improving QSAR models for biological activity of HIV Reverse Transcriptase inhibitors: Aspects of outlier detection and uninformative variable elimination, Talanta, 68 (2005) 54-60
    IF=2.391
  66. M. Daszykowski, I. Stanimirova, B. Walczak, D. Coomans, Explaining a presence of groups in analytical data in terms of original variables, Chemometrics and Intelligent Laboratory Systems, 78 (2005) 19-29
    IF=1.770
  67. I. Stanimirova, B. Walczak, D.L. Massart, Multiple Factor Analysis in environmental chemistry, Analytica Chimica Acta, 545 (2005) 1-12
    IF=2.760
  68. B. Walczak, W. Wu, Fuzzy warping of chromatograms, Chemometrics and Intelligent Laboratory Systems, 77 (2005) 173-180
    IF=1.770
  69. X. Capron, B. Walczak, O.E. de Noord, D.L. Massart, Selection and weighting of samples in multivariate regression model updating, Chemometrics and Intelligent Laboratory Systems, 76 (2005) 205-214
    IF=1.770
  70. K. Kaczmarek, B. Walczak, S. de Jong, B.G.M. Vandeginste, Baseline reduction in two dimensional gel electrophoresis images, Acta Chromatographica, 15 (2005) 82-96 ->get pdf
    IF=0.500
  71. F. Questier, R. Put, D. Coomans, B. Walczak, Y. Vander Heyden, The use of CART and multivariate regression trees for supervised and unsupervised feature selection, Chemometrics and Intelligent Laboratory Systems, 76 (2005) 45-54
    IF=1.770
  72. F. Estienne, F. Despagne, B. Walczak, O.E. de Noord, D.L. Massart, A comparison of multivariate calibration techniques applied to experimental NIR data sets. Part III: Robustness against instrumental perturbation conditions, Chemometrics and Intelligent Laboratory Systems, 73 (2004) 207-218
    IF=1.899
  73. M. Daszykowski, B. Walczak, D.L. Massart, Density-based clustering for exploration of analytical data, Analytical and Bioanalytical Chemistry, 380 (2004) 370-372 (invited paper for Special Issue on Chemometrics in Analytical Chemistry)
    IF=2.098
  74. I. Stanimirova, B. Walczak, D.L. Massart, V. Simeonov, C.A. Saby, E. Di Crescenzo, STATIS, a 3-way method for data analysis. Application to environmental data, Chemometrics and Intelligent Laboratory Systems, 73 (2004) 219-233
    IF=1.899
  75. I. Stanimirova, B. Walczak, D.L. Massart, V. Simeonov, A comparison between two robust PCA algorithms, Chemometrics and Intelligent Laboratory Systems, 71 (2004) 83-95
    IF=1.899
  76. Q.-S. Xu, M. Daszykowski, B. Walczak, F. Daeyaert, M.R. de Jonge, J. Heeres, L.M.H. Koymans, P.J. Lewi, H.M. Vinkers, P.A. Janssen, D.L. Massart, Multivariate Adaptive Regression Splines - studies of HIV reverse transcriptase inhibitors, Chemometrics and Intelligent Laboratory Systems, 72 (2004) 27-34
    IF=1.899
  77. M. Daszykowski, B. Walczak, Q.-S. Xu, F. Daeyaert, M.R. de Jonge, J. Heeres, L.M.H. Koymans, P.J. Lewi, H.M. Vinkers, P.A. Janssen, D.L. Massart, Classification and Regression Trees - studies of HIV Reverse Transcriptase Inhibitors, Journal of Chemical Information and Computer Sciences, 44 (2004) 716-726
    IF=2.810
  78. K. Kaczmarek, B. Walczak, S. de Jong, B.G.M Vandeginste, Preprocessing of two-dimensional gel electrophoresis images, Proteomics, 4 (2004) 2377-2389
    IF=5.766
  79. A. Smolinski, B. Walczak, J.W. Einax, Robust Multivariate Calibration in Environmental Studies, Analytical Letters, 36 (2003) 2317-2336
    IF=0.929
  80. K. Kaczmarek, B. Walczak, S. de Jong, B.G.M. Vandeginste, Matching of 2D gel electrophoresis images, Journal of Chemical Information and Computer Sciences, 43 (2003) 978-986
    IF=3.078
  81. K. Kaczmarek, B. Walczak, S. de Jong, B.G.M. Vandeginste, Comparison of image transformations methods used in matching of 2D gel electrophoresis images, Acta Chromaptographica, 13 (2003) 7-21 -> get full paper
  82. M. Daszykowski, B. Walczak, D.L. Massart, Projection methods in chemistry, Chemometrics and Intelligent Laboratory Systems, 65 (2003) 97-112
    IF=2.229
  83. B. Walczak, K. Kaczmarek, Zautomatyzowane dopasowywanie obrazu dwuwymiarowej elektroforezy zelowej, Materiały Konferencyjne II Konferencji "Chemometria - metody i zastosowania", Zakopane, 16-19.10.2003; Wydawnictwo Instytutu Ekspertyz Sadowych, Krakow 2003, p. 55-77
  84. M. Daszykowski, B. Walczak, D.L. Massart, A journey into low-dimensional spaces with Autoassociative Neural Networks, Talanta, 59 (2003) 1095-1105
    IF=2.091
  85. B. Walczak, M. Daszykowski, Metody kompresji i wizualizacji wielowymiarowych danych chemicznych, Proceedings II Conference "Chemometria - metody i zastosowania", Cracow (2003) 78-99
  86. K. Kaczmarek, B. Walczak, S. de Jong, B.G.M. Vandeginste, Feature based fuzzy matching of 2D gel electrophoresis images, Journal of Chemical Information and Computer Sciences, 42 (2002) 1431-1442
    IF=2.902
  87. M. Daszykowski, B. Walczak, D.L. Massart, Looking for Natural Patterns in Analytical Data. 2. Tracing Local Density with OPTICS, Journal of Chemical Information and Computer Sciences, 42 (2002) 500-507
    IF=2.902
  88. M. Daszykowski, B. Walczak, D.L. Massart, Representative subset selection, Analytica Chimica Acta, 468 (2002) 91-103
    IF=2.114
  89. M. Daszykowski, B. Walczak, D.L. Massart, On the optimal partitioning of data with K-means, Growing K-means, Neural Gas and Growing Neural Gas, Journal of Chemical Information and Computer Sciences, 42 (2002) 1378-1389
    IF=2.902
  90. A. Smolinski, B. Walczak, J.W. Einax, Hierarchical clustering extended with visual complements for interpretation of environmental data set, Chemometrics and Intelligent Laboratory Systems, 64 (2002) 45-54
    IF=1.841
  91. F. Questier, Q. Guo, B. Walczak, D.L. Massart, C. Boucon, S. de Jong, The Neural Gas network for classifying analytical data, Chemometrics and Intelligent Laboratory Systems, 61 (2002) 105-121
    IF=1.841
  92. F. Questier, I. Arnaut-Rollier, B. Walczak, D.L. Massart, Application of rough set theory to feature selection for unsupervised clustering, Chemometrics and Intelligent Laboratory Systems, 63 (2002) 155-167
    IF=1.841
  93. F. Questier, B. Walczak, D.L. Massart, Feature selection for hierarchical clustering, Analytica Chimica Acta, 466 (2002) 311-324
    IF=2.114
  94. V. Pravdova, B. Walczak, D.L. Massart, A comparison of two algorithms for warping of analytical signals, Analytica Chimica Acta, 456 (2002) 77-92
    IF=2.114
  95. E. Adams, B. Walczak, C. Vervaet, P.G. Risha, D.L. Massart, PCA of dissolution data with missing values, International Journal of Pharmaceutics, 234 (2002) 169-178
    IF=1.419
  96. A. Smolinski, B. Walczak, Exploratory analysis of chromatographic data sets with missing elements. Initialization of Expectation-Maximization algorithm, Acta Chromatographica, 12 (2002) 30-48 -> get full paper
  97. A. Kuczynska, B. Walczak, Assessment of the homogenity of chromatographic peaks. Part 1. Basic concepts and examples, Acta Chromatographica, 12 (2002) 11-29 -> get full paper
  98. V. Pravdova, C. Boucon, S. de Jong, B. Walczak, D.L. Massart, Three-way principal component analysis applied to food analysis: an example, Analytica Chimica Acta, 462 (2002) 133-148
    IF=2.114
  99. A. Smolinski, B. Walczak, J.W. Einax, Exploratory analysis of data sets with missing elements and outliers, Chemosphere, 49 (2002) 233-245
    IF=1.181
  100. M. Daszykowski, B. Walczak, D.L. Massart, Looking for Natural Patterns in Data. Part 1: Density Based Approach, Chemometrics and Intelligent Laboratory Systems, 56 (2001) 83-92
    IF=1.412
  101. V. Pravdova, B. Walczak, D.L. Massart, H. Robberecht, R. Van Cauwenbergh, P. Hendrix, H. Deelstra, Three-way PCA for the visualization of trace elemental patterns in vegetables after different cooking procedures, Journal of Food Composition and Analysis, 14 (2001) 207-225
  102. V. Pravdova, B. Walczak, D.L. Massart, S. Kawano, K. Toyoda, R. Tsenkova, Calibration of somatic cell count in milk based on NIR spectrocsopy, Analytica Chimica Acta, 450 (2001) 131-141
    IF=2.073
  103. V. Pravdova, F. Estienne, B. Walczak, D.L. Massart, Robust version of TUCKER3 model, Chemometrics and Intelligent Laboratory Systems, 59 (2001) 75-88
    IF=1.412
  104. V. Simeonov, P. Barbieri, B. Walczak, D.L. Massart, S. Tsakovski, Environmetric modeling of a potable water data set, Toxicological and Environmental Chemistry, 79 (2001) 55-72
  105. B. Walczak, D.L. Massart, Dealing with missing data. Part 1, Chemometrics and Intelligent Laboratory Systems, 58 (2001) 15-17
    IF=1.412
  106. B. Walczak, D.L. Massart, Dealing with missing data. Part 2, Chemometrics and Intelligent Laboratory Systems, 58 (2001) 29-42
    IF=1.412
  107. C. Perrin, B. Walczak, D.L. Massart, The use of wavelets for signal denoising in capillary electrophoresis, Analytical Chemistry, 73 (2001) 4903-4917
    IF=4.532
  108. F. Estienne, L. Pasti, V. Centner, B. Walczak, F. Despagne, D. Jouan Rimbaud, O.E. de Noord, D.L. Massart, A comparison of multivariate calibration techniques applied to experimental NIR data sets. Part II: predictive ability under extrapolation conditions, Chemometrics and Intelligent Laboratory Systems, 58 (2001) 195-211
    IF=1.412
  109. V. Schoonjans, F. Questier, A. P. Borosy, B. Walczak, D.L. Massart, Use of mass spectrometry for assessing similarity/diversity of natural products with unknown chemical structures, Journal of Pharmaceutical and Biochemical Analysis, 21 (2000) 1197-1214
  110. B. Walczak, D.L. Massart, Local modelling with Radial Basis Functions Networks, Chemometrics and Intelligent Laboratory Systems, 51 (2000) 219-238
  111. V. Centner, J. Verdu-Andres, B. Walczak, D. Joun-Rimbaud, F. Despagne, O. de Nord, A comparison of multivariate calibration techniques applied to experimental NIR data sets, Applied Spectroscopy, 54 (2000) 608-623
  112. J. Polanski, B. Walczak, Comparative molecular surface analysis (COMSA): a novel tool for molecular design, Computers and Chemistry, 24 (2000) 615-625
  113. J. Polanski, B. Walczak, R. Gieleciak, S. jkaszyk, Self-organizing neural networks for modeling 3D QSAR - a comparative study, Acta Poloniae Pharmaceutica - Drug Research, 57 (2000) 76-79
  114. B. Walczak, D.L. Massart, Joint basis and joint best-basis for data sets, in B. Walczak (ed.), Wavelets in Chemistry, Elsevier, Amsterdam 2000
  115. B. Walczak, J.P. Radomski, Wavelet bases for IR library compression, searching and reconstruction, in B. Walczak (ed.), Wavelets in Chemistry, Elsevier, Amsterdam 2000
  116. B. Walczak, D.L. Massart, Calibration in wavelet domain, in B. Walczak (ed.), Wavelets in Chemistry, Elsevier, Amsterdam 2000
  117. R. De Maesschalck, F. Estienne, J. Verdu-Andres, A. Candolfi, V. Center, F. Despagne, D. Jouan-Rimbaud, B. Walczak, D.L. Massart, S. de Jong, O.E. Noord, C. Puel, B.M.G. Vandeginste, The development of calibration models for spectroscopic data using Principal Component Regression, Internet Journal of Chemistry, 2 (1999) 19
  118. B. Walczak, D.L. Massart, Rought set theory, Chemometrics and Intelligent Laboratory Systems, 47 (1999) 1-16
  119. L. Pasti, B. Walczak, D.L. Massart, P. Reschiglian, Optimization of signal denoising in wavelet transform (DWT), Chemometrics and Intelligent Laboratory Systems, 48 (1999) 21-34
  120. B. Walczak, Feedback from data, "Feedback from the Data" in: "MultiComponent Reactions & Combinatorial Chemistry" (Proceedings of the German-Polish Workshop, University of Technology, Rzeszow, Poland; editors: Zdzislaw S. Hippe and Ivar K. Ugi); Oficyna Wydawnicza Politechniki Rzeszowskiej, Rzesz??Poland, 1998; pp. 249-266
  121. B. Walczak, D.L. Massart, Multiple outlier detection revisited, Chemometrics and Intelligent Laboratory Systems, 41 (1998) 1-15
  122. F. Despagne, B. Walczak, D.L. Massart, Standardization of near-Infrared spectra using Neural Networks, Applied Spectroscopy, 52 (1998) 732-745
  123. B. Walczak, Applications of Neural Networks and Neuro-Fuzzy Systems in chemistry, Proceedings of The Third Conference 'Neural Networks and Their Applications', Kule/Czestochwa 14-18.10.1997
  124. B. Walczak, D.L. Massart, Wavelets - something for analytical chemistry?, Trends in Analytical Chemistry, 16 (1997) 451-463
  125. B. Walczak, D.L. Massart, Wavelet packet transform applied to a set of signals: a new approach to the best-basis selection, Chemometrics and Intelligent Laboratory Systems, 38 (1997) 39-50
  126. D. Jouan-Rimbaud, B. Walczak, R. Poppi, O.E. de Noord, D.L. Massart, Application of wavelet transform to extract the relevant component from spectral data for multivariate calibration, Analytical Chemistry, 69 (1997) 4317-4323
  127. S. Inghelbrecht, J.-P. Remon, P.F. de Aguiar, B. Walczak, D.L. Massart, H. Vermeersch, P. De Backer, Instrumentation of a roll compactor and the evaluation of the parameter settings by neural networks, Journal of Pharmaceutical Research, 148 (1997) 103-115
  128. B. Walczak, D.L. Massart, Noise supression and signal compression using wavelet packet transform, Chemometrics and Intelligent Laboratory Systems, 36 (1997) 81-94
  129. B. Walczak, E. Bouvresse, D.L. Massart, Standardization of near-infrared spectra in the wavelet domain, Chemometrics and Intelligent Laboratory Systems, 36 (1997) 41-51
  130. W. Wu, B. Walczak, W. Penninckx, D.L. Massart, Feature reduction by Fourier transform in pattern recognition of NIR data, Analytica Chimica Acta, 331 (1996) 75-83
  131. B. Walczak, D.L. Massart, Application of Radial Basis Functions - Partial Least Squares to non-linear pattern recognition problems: diagnosis of process faults, Analytica Chimica Acta, 331 (1996) 187-193
  132. B. Walczak, D.L. Massart, The Radial Basis Functions - Partial Least Squares approach as a flexible non-linear regression techniques, Analytica Chimica Acta, 331 (1996) 177-185
  133. W. Wu, Y. Mallet, B. Walczak, W. Penninckx, D. L. Massart, S. Heuerding, F. Erni, Comparison of regularized discriminant analysis, linear discriminant analysis and quadratic discriminant analysis, applied to NIR data, Analytica Chimica Acta, 326 (1996) 257-265
  134. B. Walczak, B. van den Bogaert, D.L. Massart, Application of wavelet packet transform in pattern recognition of NIR data, Analytical Chemistry, 68 (1996) 1742-1747
  135. B. Walczak, Neural networks with robust backpropagation learning algorithm, Analytica Chimica Acta, 322 (1996) 21-29
  136. W. Wu, B. Walczak, D.L. Massart, S. Heuerding, F. Erni, I.R. Last, K.A. Prebble, Artificial neural networks in classification of NIR spectral data: design of the training set, Chemometrics and Intelligent Laboratory Systems, 33 (1996) 35-46
  137. J. Toft, B. Walczak, "Kunstige nevrale nett", in "Anvendelse av kjemometri innen forskning og industri", editors: R. Nortvedt, F. Brakstad, O. M. Kvalheim, T. Lundstedt, Infometrics Publisher, Bergen - Sandviken, 1996; pp. 207-220
  138. B. Walczak, Outlier detection in bilinear calibration, Chemometrics and Intelligent Laboratory Systems, 29 (1995) 63-73
  139. B. Walczak, Outlier detection in multivariate calibration, Chemometrics and Intelligent Laboratory Systems, 28 (1995) 259-272
  140. W. Wu, B. Walczak, D.L. Massart, K.A. Prebble, I.R. Last, Spectral transformation and wavelength selection in NIR spectra classification, Analytica Chimica Acta, 315 (1995) 243-255
  141. D. Jouan-Rimbaud, B. Walczak, D.L. Massart, I. Last, K. Prebble, Comparison of multivariate methods based on latent vectors and methods based on wavelength selection for the analysis of near-infrared spectroscopic data, Analytica Chimica Acta, 304 (1995) 285-295
  142. B. Walczak, D.L. Massart, Robust principal components regression as a detection tool for outliers, Chemometrics and Intelligent Laboratory Systems, 27 (1995) 41-54
  143. B. Walczak, W. Wegscheider, Calibration of non-linear analytical systems by a neuro fuzzy approach, Chemometrics and Intelligent Laboratory Systems, 22 (1994) 199-207
  144. B. Walczak, E. Bauer-Wolf, W. Wegscheider, A neuro-fuzzy system for X-ray spectra interpretation, Microchimica Acta, 113 (1994) 153-169
  145. B. Walczak, W. Wegscheider, Non-linear modeling of chemical data by combinations of linear and neural networks methods, Analytica Chimica Acta, 283 (1993) 508-517
  146. B. Walczak, W. Lukasik, T. Kowalska, An example of CFA application in geochemistry, (in polish), Carbo-Energochemia, Ekologia, 37 (3) (1992) 70-73
  147. B. Walczak, J. Kwapulinski, Application of PCA to evaluation of air pollution with heavy metals at the territory of Katowice, (in polish), Ochrona powietrza, 4 (1992) 81-85
  148. B. Walczak, J. Kwapulinski, Application of PCA to evaluation of air pollution with heavy metals at the territory of Katowice, (in polish), Ochrona powietrza, 5 (1992) 105-110
  149. B. Walczak, Study on the mobile and stationary phase interactions in the reversed- phase liquid chromatography, Polish Journal of Chemistry, 66 (1992) 2015-2023
  150. B. Walczak, M. Dreux, J. R. Chretien, Comparison of 20 normal phase LC systems for separation of chalcones, Chromatographia, 31 (1991) 575-582
  151. B. Walczak, Separation of chalcones isomers in HPLC systems, Analytical Sciences, 7 (1991) 103-107
  152. B. Walczak, M. Dreux, J. R. Chretien, Factor analysis and experimental design in HPLC. IX. Silica vs. chemically bonded phases in normal-phase HPLC, Chromatographia, 29 (1990) 259-264
  153. B. Walczak, M. Dreux, J. R. Chretien, L. Morin-Allory, M. Lafosse, G. Felix, Factor analysis and experimental design in HPLC. VIII. Charge-transfer vs. standard phases in the NP-HPLC, J. Chromatography, 464 (1989) 237-249
  154. B. Walczak, J. Sliwiok, T. Kowalska, A kinetic study on autoxidation of the selected liquid monoolefins, La Rivista Italiana delle Sostanze Grasse, 66 (1989) 179-185
  155. B. Walczak, T. Kowalska, A stochastic approach to the kinetics of chemical reactions applied to modelling of the ethylbenzene oxidation. I. Presentation of a possibility, Oxidation Communications, 11 (1988) 253-263
  156. B. Walczak, T. Kowalska, A stochastic approach to the kinetics of chemical reactions applied to modelling of the ethylbenzene oxidation. II. A computational prediction of the influence of intermolecular interactions on the overall oxidation, Oxidation Communications, 11 (1988) 265-273
  157. B. Walczak, J. R. Chretien, M. Dreux, L. Morin-Allory, M. Lafosse, Factor analysis and experimental design in HPLC. IV. Influence of mobile phase modyfications on the selectivity of chalcones on a ODS stationary phase, Chemometrics and Intelligent Laboratory Systems, 1 (1987) 177-189
  158. B. Walczak, L. Morin-Allory, M. Lafosse, M. Dreux, J. R. Chretien, Factor analysis and experimental design in HPLC. VII. Classification of 23 reversed-phase HPLC packings and identification of factors governing selectivity, J. Chromatography, 395 (1987) 183-202
  159. B. Walczak, M. Dreux, J. R. Chretien, K. Szymoniak, M. Lafosse, L. Morin-Allory, J. P. Doucet, Factor analysis and experimental design in HPLC. I. Trends in selectivity of 53 chalcones in reversed-phase high-performance liquid chromatography on alkyl- or phenyl-bonded stationary phases, J. Chromatography, 353 (1986) 109-121
  160. B. Walczak, J. R. Chretien, M. Dreux, L. Morin-Allory, M. Lafosse, K. Szymoniak, F. Membrey, Factor analysis and experimental design in HPLC. II. Normal-phase high-performance liquid chromatography on columns of different polarities, J. Chromatography, 353 (1986) 123-137
  161. B. Walczak, L. Morin-Allory, J. R. Chretien, M. Lafosse, M. Dreux, Factor analysis and experimental design in HPLC. III. Influence of mobile phase modifications on the selectivity of chalcone on a DIOL stationary phase, Chemometrics and Intelligent Laboratory Systems, 1 (1986) 79-90
  162. B. Walczak, M. Lafosse, J. R. Chretien, M. Dreux, L. Morin-Allory, Factor analysis and experimental design in HPLC. V. Selectivity of configuration chalcone isomers on 23 reversed-phase high-performance chromatography packings, J. Chromatography, 369 (1986) 27-37
  163. J. R. Chretien, B. Walczak, L. Morin-Allory, M. Dreux, M. Lafosse, Factor analysis and experimental design in HPLC. VI. Comparison of the retention mechanism for fourteen ODS packings, J. Chromatography, 371 (1986) 253-267
  164. T. Kowalska, B. Walczak, J. Sliwiok, The importance of the liquid monoolefin structure upon the initial stages of autoxidation, La Rivista Italiana delle Sostanze Grasse, 60 (1983) 185-190
  165. T. Kowalska, B. Walczak, J. Sliwiok, A method of evaluating the influence of interactions through hydrogen bonds upon autoxidation of liquid monoolefins, La Rivista Italiana delle Sostanze Grasse, 59 (1982) 246-248
  166. J. Sliwiok, B. Walczak, T. Kowalska, Investigation of the self-association of higher fatty alcohols and acids on chromatographic sorbents, Chromatographia, 14 (1981) 197-202
  167. T. Kowalska, B. Walczak, Cellulose sorbents in investigations on self-association of higher fatty alcohols, Microchemical Journal, 26 (1981) 299-306
  168. T. Kowalska, B. Walczak, Investigation of the association of the 1-dodecene-lauryl alcohol bicomponent system, Microchemical Journal, 26 (1981) 590-596
  169. T. Kowalska, J. Sliwiok, B. Walczak, Chromatographic and spectroscopic investigation of the associative changes with the selected higher fatty alcohols, Microchemical Journal, 25 (1980) 330-337
  170. T. Kowalska, J. Sliwiok, B. Walczak, Investigation of the association of higher fatty alcohols by means of paper chromatography, Microchemical Journal, 23 (1978) 320-328
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