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1. DOM for providing dynamic display and interaction 2. CSS and XHTML for carrying out standardised-format presentation 3. XML and XSTL for carrying out data exchange and processing 4. The XMLHttpRequest object for asynchronous data retrieving and handling 5. JavaScript for data processing and binding all the technologies together The adoption of AJAX has drastically enhanced interactive functionality in websites due its asynchronous nature. The classic web application model makes use of synchronous interactions in a request-wait-response client-server model. In this process, as illustrated in Figure 6-5, the client (user) triggers initially an HTTP request to the web server through a web interface. Subsequently, the server analyses the request sent by the client, and carries out any processing tasks such as retrieving data, among many others. Due to the synchronous nature of the model, the client has to unnecessarily wait while the server processes the submitted data. For every requested task, the application is locked up and the waiting time increases exponentially. In most cases, the browser displays blank pages while processing the data and the users must wait until the entire HTML page is reloaded. Finally, the server returns a response along with the requested results back to the user. This model is adapted from the Web’s original use as a hypertext medium, but it is not found fit for software applications since it makes a lot of technical sense, but does not make for a great user experience. AJAX on the other hand, which is based on asynchronous interactions, follows a completely different approach when compared to the classic web application model, as presented in Figure 6-5. AJAX allows the users to continue interacting with the web interface without any interruptions or page reloads, while simultaneously, messages are exchanged with the web server in the background. The XMLHttpRequest object, which constitutes the backbone of the AJAX methodology, uses a request-response model that supports the indiscernible exchange of data between client and server in the background. Therefore, the users avoid communicating directly with the server by stimulating an HTTP request as in the case of the classic model. On the contrary, due to the asynchronous nature of this methodology, the displayed contents of the browser can never be scintillated, delayed 179
or disappeared (Wang et al., 2008). Finally, data are returned to the AJAX engine without the necessity of completing the entire processing. The remaining supporting technologies incorporated into the AJAX method are in charge of creating direct, richer and more dynamic web interfaces that look and act like local desktop applications. Figure 6-5 Comparison between the classic and the AJAX web application model The figure provides a direct comparison between the traditional synchronous web application approach (left) and the asynchronous AJAX web application model (right). The figure has been extracted from Lin et al., (2008). jQuery (http://jquery.com/) is a light and exceptionally fast “write less, do more” JavaScript library, which simplifies client-side scripting and offers feature-rich functionality. Former long and complex JavaScript commands are simplified via jQuery to within a single or a few lines. For instance, HTML traversing, event handling, AJAX requests and replies, as well as animating become more rapid and user-friendly. In addition, the DataTables plug-in (http://www.datatables.net/) for the jQuery library has been employed for the construction of fully interactive feature-rich HTML tables, as opposed to the traditional static HTML tables within a web interface. DataTables support features such as pagination, on-the-fly filtering and sorting, among many others. 180
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CRANFIELD UNIVERSITY Eleni Anthippi
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ABSTRACT Muscle foods such as meat,
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TABLE OF CONTENTS ABSTRACT ........
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6.2.4 The iWebPlots package .......
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Figure 3-12 Speedup produced by the
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Figure 6-9 Sweave example for the d
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TABLE OF EQUATIONS Equation 1 Mean-
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RMSE RMSECV SSE SVD SVMs SYMBIOSIS-
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Figure 1-1 Evolution from molecular
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1.1.2.1 Fourier Transform Infrared
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1.1.3 Microbial Spoilage in Meat Sy
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The multivariate techniques applied
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1.4 Multivariate Analysis: Unsuperv
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1.4.2 Cluster Analysis Cluster anal
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1.5 Multivariate Analysis: Supervis
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In any linearly separable binary da
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Where ( ) are the Lagrange multipli
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Every kernel is characterised by a
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The “one-against-all” approach
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Furthermore, metrics such as the bi
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1.6.3 Leave-One-Out Cross-Validatio
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In such cases, the model becomes qu
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1.8 Aims and objectives The overall
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2 Development of the multivariate a
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Sensory panel scores were of the hi
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DF (Hz) 2.2.1.5 Electronic Nose (e-
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Figure 2-3 Data intersection The fi
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3. Validation Techniques In the cas
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Figure 2-4 The process of construct
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2.3 Results and Discussion 2.3.1 Pr
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(b) HPLC data (c) e-nose data Figur
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In the case of FTIR, linear classif
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2.3.2.2 Class Prediction Accuracies
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Figure 2-7 Class prediction rates o
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The topology of the three-dimension
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Figure 2-9 Three-dimensional error
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Furthermore, a thorough comparison
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In the master/slave architecture, a
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precision of the classification acc
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Figure 3-3 The steps of the Nelder-
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3.3 Results and Discussion 3.3.1 Li
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3.3.2 Nonlinear Models In order to
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9) 10) 11) 12) 13) 14) 15) 16) Figu
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As an additional visual aid, these
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a) Number of iterations b) Number o
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Figure 3-10 Comparison of the execu
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Figure 3-12 Speedup produced by the
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4 Integration of Heterogeneous Data
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4.2.2 Procrustes Analysis Procruste
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symmetric method since the ordering
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Figure 4-3 Steps of CPCA for the da
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4.2.5 Data Integration and Analysis
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Figure 4-4 Data integration workflo
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a) GPA b) CPCA Figure 4-6 The conse
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accuracies as the linear models; po
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Figure 4-8 Classification Results f
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Similar to FTIR, the PLS-DA ensembl
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Figure 4-9 Class prediction rates o
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4.3.3 Permutation Tests Even though
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Even though the interpretation of t
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Figure 4-12 Distribution plots of t
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RBF SVMs Datasets Original %CC Mean
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Figure 4-14 Boxplots representing t
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5 Application of the multivariate a
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Figure 5-1 Mean FTIR spectra for ca
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5.2.2.2 Fourier Transform Infrared
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5.2.2.4 Data Overview For each expe
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5.2.3.3 High Throughput Liquid Chro
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Figure 5-5 displays the PCA scores
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(a) GPA (b) CPCA Figure 5-6 The con
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observation confirms that indeed CP
Page 143 and 144: Figure 5-8 Class prediction rates o
Page 145 and 146: (a) RBF SVMs (b) PLS-DA Figure 5-9
Page 147 and 148: RBF SVMs Datasets Original %CC Mean
Page 149 and 150: Figure 5-12 Execution times of the
Page 151 and 152: (a) FTIR data (b) Raman data Figure
Page 153 and 154: The classification results for the
Page 155 and 156: Figure 5-16 Class prediction rates
Page 157 and 158: (a) RBF SVMs (b) PLS-DA Figure 5-17
Page 161 and 162: Figure 5-20 Execution times of the
Page 163 and 164: (a) FTIR data (b) HPLC data 148
Page 165 and 166: (a) GPA (b) CPCA Figure 5-22 The co
Page 167 and 168: The classification results of the f
Page 169 and 170: Figure 5-24 Classification Results
Page 171 and 172: Figure 5-25 Class prediction rates
Page 173 and 174: The permutation results for the dat
Page 175 and 176: Figure 5-28 Distribution plots of t
Page 179 and 180: Figure 5-30 Boxplots representing t
Page 181 and 182: 5.4 Comparison of the individual ca
Page 183 and 184: Figure 5-32 Investigating the commo
Page 185 and 186: 6 Development of improved visualisa
Page 187 and 188: 6.2.2 Generating static graphs As d
Page 189 and 190: Figure 6-2 Construction process of
Page 191 and 192: 6.2.2.2 Generating dynamic reports
Page 193: activity, while simultaneously the
Page 197 and 198: ectangles, circles and/or irregular
Page 199 and 200: In addition to the static figures g
Page 201 and 202: c) graphics package d) ggplot2 pack
Page 203 and 204: In addition to aesthetics, faceting
Page 205 and 206: Datasets FTIR HPLC e-nose PLS-DA (L
Page 207 and 208: Figure 6-10 Interactive dendrogram
Page 209 and 210: 6.4 Conclusion The work reported in
Page 211 and 212: large number of individual models i
Page 213 and 214: The generated suite of tools, as pr
Page 215 and 216: In addition, the difficulty to corr
Page 217 and 218: REFERENCES Almeida, J. A. S., Barbo
Page 219 and 220: Processing., Proceedings of the 12t
Page 221 and 222: Clarke, B., Fokoué, E. and Zhang,
Page 223 and 224: spectroscopy and machine learning",
Page 225 and 226: Gower, J. C. (1975), "Generalized p
Page 227 and 228: Jardon, M. (2006), Systems Biology:
Page 229 and 230: Nicolaou, N., Xu, Y. and Goodacre,
Page 231 and 232: Shah, A. A., Barthel, D., Lukasiak,
Page 233 and 234: Vera, G., Jansen, R. and Suppi, R.
Page 235: Xu, Y. and Goodacre, R. (2012), "Mu
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