Results 11 to 20 of about 21,998,513 (385)
Nonuniform Markov models [PDF]
1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, 1996 A statistical language model assigns probability to strings of arbitrary length. Unfortunately, it is not possible to gather reliable statistics on strings of arbitrary length from a finite corpus. Therefore, a statistical language model must decide that
Ristad, Eric Sven, Thomas, Robert G.
core +6 more sources
The Markov switching ACD model [PDF]
SSRN Electronic Journal, 2002 We propose a new framework for modelling time dependence in duration processes on financial markets. The well known autoregressive conditional duration (ACD) approach introduced by Engle and Russell (1998) will be extended in a way that allows the ...
Hujer, Reinhard +2 more
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A Markov model for sedimentation
Journal of Mathematical Analysis and Applications, 1977 David K. Pickard, Elmer M. Tory
openalex +3 more sources
Journal of Theoretical Biology, 2012 Recent work has discussed the importance of multiplicative closure for the Markov models used in phylogenetics. For continuous-time Markov chains, a sufficient condition for multiplicative closure of a model class is ensured by demanding that the set of rate-matrices belonging to the model class form a Lie algebra.
Sumner, Jeremy +2 more
openaire +5 more sources
Charge generation in organic solar cells: Journey toward 20% power conversion efficiency
Aggregate, Volume 3, Issue 6, December 2022., 2022 Herein, a photophysicist's views on charge generation in organic solar cells is discussed. Recent steady‐state and time‐resolved spectroscopic studies regarding the exciton diffusion to donor:acceptor interfaces, charge transfer at the donor:acceptor interface, and long‐range spatial dissociation of charge transfer states are highlighted.
Yasunari Tamai
wiley +1 more source
Reliability Assessment of a Fault-Tolerant PV Multistring Inverter
Energies, 2020 In photovoltaic (PV) systems, the reliability of the system components, especially the power converters, is a major concern in obtaining cost effective solutions.
Hugues Renaudineau +5 more
doaj +1 more source
A method to calculate the number of dynamic HDFS copies based on file access popularity
Mathematical Biosciences and Engineering, 2022 HDFS heterogeneous clusters usually have multiple storage media at the same time. How to efficiently read and write file copies and reasonably use various storage media is a problem to be solved. Dynamically adjusting the number of copies is important in
Xi-yue Cao +3 more
doaj +1 more source
Genome Research, 2007 Comprehensive identification and cataloging of copy number variations (CNVs) is required to provide a complete view of human genetic variation. The resolution of CNV detection in previous experimental designs has been limited to tens or hundreds of ...
Kai Wang +7 more
semanticscholar +1 more source
A Markov Chain Model Checker [PDF]
, 2000 Markov chains are widely used in the context of performance and reliability evaluation of systems of various nature. Model checking of such chains with respect to a given (branching) temporal logic formula has been proposed for both the discrete [17,6 ...
Hermanns, Holger +3 more
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Flowsheet generation through hierarchical reinforcement learning and graph neural networks
AIChE Journal, Volume 69, Issue 1, January 2023., 2023 Abstract Process synthesis experiences a disruptive transformation accelerated by artificial intelligence. We propose a reinforcement learning algorithm for chemical process design based on a state‐of‐the‐art actor‐critic logic. Our proposed algorithm represents chemical processes as graphs and uses graph convolutional neural networks to learn from ...
Laura Stops +3 more
wiley +1 more source