Properties classification

The orthogonality of a set of molecular descriptors is a very desirable property. Classification methodologies such as CART (11) (or other decision-tree methods) are not invariant to rotations of the chemistry space. Such methods may encounter difficulties with correlated descriptors (e.g., production of larger decision trees). Often, correlated descriptors necessitate the use of principal components transforms that require a set of reference data for their estimation (at worst, the transforms depend only on the data at hand and, at best, they are trained once from some larger collection of compounds). In probabilistic methodologies, such as Binary QSAR (12), approximation of statistical independence is simplified when uncorrelated descriptors are used. In addition,... 

Source contributions assigned to the same aerosol sample have varied greatly in intercomparison studies (23) but, without the intermediate particle property classifications, it is impossible to ascribe the differences to the analytical portion or to the source assignment portion of the process. 

Physicochemical parameter/property Classification Effect on tablet performance... 

Contrast the following property classifications extensive-intensive, measurable-unmeasurable, state-path. 

PHOTORESISTS, THEIR LITHOGRAPHIC PROPERTIES, CLASSIFICATION, AND MECHANISMS TO PRODUCE A RELIEF IMAGE... 

The Hydrogen Bond Formation, Thermodynamic Properties, Classification... 

Trotter, M.W. B., Holden, S.B. (2003) Support vector machines for ADME property classification. QSAR e[ Combinatorial Sci. 22, 533-548. 

Class 1.2 is further divided in the same way as for the 10 physical properties classification. Class 1.2.2 includes gaseous elements, with low densities, high ionization energies, smaller atomic radii, more electrons in the outermost shell, and weaker trends to positive oxidation states and to combinination with chlorine. Chlorine itself is situated near the boundary of the class 1.2.1. The MD for this class is mainly determined by the physical properties. Typical elements for this class are S and Se. The elements Cl, As, and Na also have significant MDs for this class. 

Boulter, D., Derbyshire, E. The geneial properties, classification and distribution of plant proteins. In Plant proteins (Ed. Norton G.), p. 3, Butterworths London. 1978... 

List six different property classifications of materials that determine their applicability. 

There are six different property classifications of materials that determine their applicability mechanical, electrical, thermal, magnetic, optical, and deteriorative. 

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