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Showing 1 to 14 of 14 for “"Dpps"”.
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Scalable Inference Algorithms for Determinantal Point Processes
Determinantal Point Processes (DPPs) are probability distributions on subsets of a collection of points that tend to generate diverse configurations of points. This feature makes them suitable as a probabilistic model of diversity. Recently this idea has been exploited extensively in subset …
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Diversity-inducing probability measures for machine learning
… a DIPM is a Determinantal Point Process (DPP). DPPs originally arose in quantum physics, and are known to have deep relations to linear algebra, combinatorics, and geometry. We explore applications of DPPs to kernel matrix approximation and kernel ridge regression.
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Understanding the influences on participation in a National Diabetes Prevention Programme and developing an implementation strategy to improve referral
… health priority. Diabetes Prevention Programmes (DPPs) can prevent or delay the progression to type 2 diabetes for those at high risk. Referral to and participation in DPPs has been low. Ireland is implementing a National Diabetes Prevention Programme (NDPP) providing an opportunity to understand …
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Graphs, Principal Minors, and Eigenvalue Problems
… algorithms. For determinantal point processes (DPPs), we consider the classes of symmetric and signed DPPs, respectively, and in both cases connect the problem of learning the parameters of a DPP to a related matrix recovery problem. Next, we consider two conjectures in spectral graph theory …
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Learning and enforcing diversity with Determinantal Point Processes
… problem using Determinantal Point Processes (DPPs), probabilistic models that provide an intuitive and powerful way of balancing quality and diversity in sets of items. We introduce a novel, fixed-point algorithm for estimating the maximum likelihood parameters of a DPP, provide proof of …
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Accurate Cylindrical-Coordinate Numerical Models For The Analysis Of Hydrologic Tests
… Permeameter Simulator (DPSS), was developed. DPPS was generated by modifying STS so both numerical codes are similar in many ways, particularly with their flexibility and accuracy. The codes differ in how they handle vertical layering, the boundary conditions at the well, and the spreadsheet …
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Mechanisms of bacterial polyprenyl transferases and multi-target drug discovery for tuberculosis
… fold), Mycobacterium tuberculosis Rv3378c and DPPS (ζ fold The function, mechanism of action, structure, inhibition and functional engineering of these six polyprenyl transferases were studied by X-ray crystallography, mutagenesis, activity assays, thermal dynamics measurements etc. Besides …
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Efficient sampling for determinantal point processes
Determinantal Point Processes (DPPs) are elegant probabilistic models of repulsion and diversity over discrete sets of items. It assigns higher probability to diverse subsets, making them more possible to be sampled. If we want to fully control the size of sampled subsets, the perfect choice would …
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The quality of deliberation in Northern Ireland's district policing partnerships
… an in-depth understanding of Northern Ireland’s DPPs in relation to deliberative democratic theory, specifically regarding how these policing/public partnerships stand up under a deliberative democratic lens. The second goal is to provide a possible framework by which deliberative quality can be …
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Examining Structure-Morphology-Property Relationships of Novel Styrenic-Based Macromolecules for Emerging Applications
… metathesis of 4-(diphenylphosphino)styrene (DPPS) successfully generated high molecular weight triaryl phosphine-containing copolymers. These macromolecules have no -CH2 group at the benzylic position increasing the thermal stability of the DPPS-containing polymers. Counterion exchange to …
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Measuring Performance in Complex Adaptive Systems: An Agent-Based Approach to Managerial and Technological Change
… A case study involving deregulated power plants (DPPs) demonstrates how CAPEM 2.0 can assist in uncovering which factors have the optimal impact on system-wide outcomes. For example, it reveals how certain roles, behaviors, or conditions can excessively affect an organization's success by …
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Investigating New Guaiazulenes and Diketopyrropyrroles for Photonic Applications
… and attractive spectroscopic properties of DPPs have motivated their study for fluorescence microscopy applications, concluding that the prepared DPP's are potentially suitable chromophores for high resolution stimulated emission depletion (STED) microscopy.</p>
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Advancing Elastomers to Additive Manufacturing Through Tailored Photochemistry and Latex Design
… from the monomer 4-(diphenylphosphino) styrene (DPPS). ³¹P NMR spectroscopy confirmed quantitative post-polymerization alkylation of pendant triarylphosphines to yield phosphonium ionomers and polyzwitterions. Systematic comparison of neutral, ionomer, and polyzwitterions elucidated significant …