TRICAP 2018 Angel Fire Resort, New Mexico

Abstract

The conference ThRee-way Analysis In Chemistry And Psychology (TRICAP) is already the ninth edition in a series of conferences on multiway and multiset methods across many disciplines. This series started with a small workshop on three-way methods in chemistry (then called TRIC) in Epe, The Netherlands, 1993 bringing together researchers from psychology and chemistry working on three-way methods and applications. Then, the name was changed into TRICAP, and the next meeting was in Lake Chelan (USA, 1997). From then on, the meeting was held every 3–4 years alternating between the United States and Europe, always at secluded and beautiful places. This is also the philosophy of the meeting: bringing together researchers from very different backgrounds (chemists, chemical engineers, psychologists, computer scientists, and the like) to intensively discuss problems of three-way analysis. Over the years, the focus has broadened to contain not only three-way methods but also methods to analyze multiple data sets simultaneously, such as multiset and multiblock analysis. The presentations are very diverse; they range from theory to computation to applications. The format of the conference is such that enough time is given to presenters and discussion which often also continues at the bar. The size of the conference is usually small, around 30 people attending. The 2018 TRICAP conference was held in the Angel Fire Resort in Northern New Mexico with Mark van Benthem as chair. There were 28 participants of 11 different nationalities. The contributions were again very diverse and entertaining. The two leading journals in Chemometrics have joined forces and present a Virtual Special Issue (VSI) on multiway and multiset methods resulting from this conference and with contributions from former attendees. We have divided the contributions equally among the journals, and in these digital times, it is easy to produce such a VSI. The total list of contributions ordered in type of topic is given below including in which journal it is published with a direct link. We hope our readers will enjoy this VSI and get a sense of the atmosphere of the TRICAP conferences! The next TRICAP will be in Brittany (France) in 2021 or 2022. A two steps algorithm for the joint eigenvalue decomposition, application to canonical polyadic decomposition of fluorescence spectra (Chemolab) Candecomp/Parafac with zero constraints at arbitrary positions in a loading matrix (Chemolab) Getting to the core of PARAFAC2, a nonnegative approach (Chemolab) Model selection techniques for sparse weight based PCA (JChem) Three-way clustering around latent variables (CLV3W) approach with configuration constraints to facilitate interpretation (JChem) Multivariate curve resolution of multiway data using the multilinearity constraint (JChem) Bilinear and trilinear modelling of three-way data obtained in two factor designed metabolomics studies (Chemolab) Detecting outlying variables in multigroup data: a comparison of different loading similarity coefficients (JChem) Heterofusion: fusing genomics data of different measurement scales (JChem) Sparse common and distinctive covariates regression (JChem) Divide et impera: how disentangling common and distinctive variability in multi-set data analysis can aid industrial process troubleshooting and understanding (JChem) Three-way PARAFAC decomposition of chromatographic data for the unequivocal identification and quantification of compounds in a regulatory framework (Chemolab) Using chemometric tools to investigate the quality of three- and four-way liquid chromatographic data obtained with two different fluorescence detectors and applied to the determination of quinolone antibiotics in animal tissues (Chemolab) CATTELL's parallel proportional profiles (JChem)