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Raport de cercetare - Lorentz JÄNTSCHI

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Similarity Assessment with PDR-FP<br />

Relevance of Complexity Effects<br />

Tversky Similarity<br />

Relevance of Complexity Effects<br />

Activity Classes of Different Avg. Size<br />

Pairwise Tversky Similarity<br />

Complexity Effects<br />

Weighted Tversky Coefficient<br />

Random Reduction of Bit Density<br />

o Diversity Analysis and Library Design<br />

Diversity Analysis<br />

• Measuring diversity<br />

• Selecting diverse subsets<br />

• Computational filtering<br />

Combinatorial Library Design<br />

• Designing libraries optimised on multiple properties<br />

• Reduced Graphs as Molecular Descriptors<br />

o De novo Design<br />

De Novo Design Concepts<br />

Adaptive Walk in a “Fitness Landscape”<br />

What is a Molecule?<br />

Local Neighborhood Search<br />

Local Neighborhood Strategies<br />

Elements of Artificial Adaptive Systems<br />

Ant Colony Optimization. A Simple Combinatorial Case: Pepti<strong>de</strong> Design<br />

Ant System for Combinatorial Design<br />

Principle of Evolutionary Strategies<br />

Algorithm of the (1,λ) Evolution Strategy<br />

De novo Fragment Assembly<br />

Operators of Evolutionary Optimization<br />

Particle Swarm Optimization (PSO)<br />

Visualization of Particle Trajectories<br />

COLIBREE®: Combinatorial Library Breeding<br />

Self-Organizing Map (SOM)<br />

Pharmacophore Road Map of Chemical Space<br />

o Lessons learned from mo<strong>de</strong>lling bioactivity - what works and what doesn't<br />

Dynamic pharmacophores in the 5HT1b/d GPCR<br />

• An introduction to <strong>de</strong>signing 5-HT1B ligands<br />

• 5-HT1B pharmacophore <strong>de</strong>velopment<br />

• Homology mo<strong>de</strong>lling based on the beta-2 crystal structure<br />

• Dynamic pharmacophores<br />

• Efficacy mo<strong>de</strong>ls<br />

Moving on to Structure-Activity/Property mo<strong>de</strong>ls - some observations<br />

• How reliable are solubility data?<br />

• ‘Solubility’ in the literature<br />

• So, we have created a Solubility Challenge<br />

• Methods to discover mo<strong>de</strong>ls<br />

• Property behaviour<br />

• So - does (Q)SAR work?<br />

• Overfitting and cross validation: three papers to read by Hawkins<br />

• A simple mo<strong>de</strong>l example, again using solubility - putting in<br />

143

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