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Marcello MASCINI
Food science and technology - 1st year

Indice degli argomenti

  • The course aims to increase the knowledge of pre and post processing experimental data with multivariate statistical techniques applied to the analysis of foods. This course will emphasize computer approaches to multivariate statistical analysis and automation. We will discuss how to design, conduct, and analyze experiments in food sciences

     

    Because of the practical application nature of this course there is no mandatory textbook. Instead, you should purchase a text that suits your needs (e.g., practical application versus mathematical statistics). Recommended texts are:

    Johnson, Dallas E. (1998). Applied multivariate methods for data analysis. Pacific Grove, CA: Duxbury Press. Good balance between theory and practice.

    Tabachnick, B. G. & Fideii,L.S. (2000). Using Multivariate Statistics, 4th Ed. New York: Allyn & Bacon. A traditional and popular text that focuses on practical applications.

    Oehlert, Gary W.  (2010). A first course in design and analysis of experiments. (http://users.stat.umn.edu/~gary/book/fcdae.pdf)

    Barrentine Larry B. (1999) An Introduction to Design of Experiments: A Simplified Approach Amer Society for Quality

    slides of the lessons and eLearning tools


    The course consists of theoretical lessons enriched by practical examples, exercises and exercises of data processing using open access software of recognized international validity.

    Teaching is carried out with lectures in English.

    The course is split into 4 units:

    UNIT 1: univariate analysis

    Data, information, models, data types, analytical representation of data

    Calibration and regression, Introduction to Statistics

    Media & Variance

    The Normal distribution, theory of measurement errors, the central limit theorem and the theorem of Gauss

    Maximum likelihood, method of least squares, Generalization of the method of least squares

    Polynomial regression, non-linear regression, the χ2 method, Validation of the model

    UNIT 2: multivariate analysis

    Correlation

    Multiple linear regression

    Principal component analysis (PCA)

    Principal component regression (PCR) and Partial least squares regression - (PLS)

    UNIT 3: Design of Experiments

    Basic design of experiments and analysis of the resulting data

    Analysis of variance, blocking and nuisance variables

    Factorial designs

    Fractional factorial designs

    Overview of other types of experimental designs (Plackett–Burman designs, D-optimal designs, Supersaturated designs, Asymmetrical designs)

    Response surface methods and designs

    Applications of designed experiments from various fields of food science

    UNIT 4: Elements of Pattern recognition

    cluster analysis

    Potential Method

    normalization

    The space representation (PCA)

    Examples of PCA

    Discriminant analysis (DA)

    PLS-DA

    Examples of PLS-DA

     

     


    The teacher manages the course through the web platform http://elearning.unite.it/ . After sign up Students can download all electronics materials of the course. Agenda of the practical use of academic-free programs and of multi-choice tests and reports will be planned at the beginning of the course and uploaded on the web platform. Students can download all learning tools (pdf files, software, excel files ect) before classes.

    Workload:

    Face-to-face teaching: 30 hours

    Interactive teaching (groups, individuals): 10 hours

    Virtual Lab: 10

    Individual study: 40 hours

     

    Throughout the duration of the course, students will be invited to actively participate in learning (via smartphone or laptop) using the wooclap interactive platform with interactive presentations (multiple choice questions, word cloud, open questions, etc.).

    On the e-learning website, students will be able to download all learning tools. In particular, specific activities will be available for working students such as access to online lessons, recorded mini-lessons, commented slides.

    For working students, there will be periodic in-depth meetings and additional receptions, also remotely.