30 research outputs found
Information Surfaces in Systems Biology and Applications to Engineering Sustainable Agriculture
Systems biology of plants offers myriad opportunities and many challenges in
modeling. A number of technical challenges stem from paucity of computational
methods for discovery of the most fundamental properties of complex dynamical
systems. In systems engineering, eigen-mode analysis have proved to be a
powerful approach. Following this philosophy, we introduce a new theory that
has the benefits of eigen-mode analysis, while it allows investigation of
complex dynamics prior to estimation of optimal scales and resolutions.
Information Surfaces organizes the many intricate relationships among
"eigen-modes" of gene networks at multiple scales and via an adaptable
multi-resolution analytic approach that permits discovery of the appropriate
scale and resolution for discovery of functions of genes in the model plant
Arabidopsis. Applications are many, and some pertain developments of crops that
sustainable agriculture requires.Comment: 24 Pages, DoCEIS 1
Analysis and Evaluation of the Role of Mass Media on Urban Branding in Tourism
One of the Provinces competitiveness components in attracting tourists is the urban tourism branding and one of the most influential factors in this field is advertising and informing through the mass media which was a key point and the main goal in this research. This is of applied type in terms of purpose and research and describes the correlation between variables and is a survey way in terms of research method. The statistical sample of this study was 371 people who were selected by stratified random sampling. Finally, the data were analyzed by SPSS software and the variables were evaluated by AHP and ANP methods. The results of the pair comparison of the criteria indicated that the media advertising with the coefficient of 0.3352 has priority over other criteria for urban tourism development based on urban branding. Interpretation of the results of the standardized regression coefficients, namely beta (Beta), showed that the representation of tourism places in the form of tangible facts with beta of 289.0 had the greatest impact on the variable of tourism development and the establishment of urban branding. Therefore, a standard deviation in the representation variable increased the development rate of tourism by a standard deviation of 289.0, on the contrary
Quantum approximate Bayesian computation for NMR model inference
Recent technological advances may lead to the development of small scale
quantum computers capable of solving problems that cannot be tackled with
classical computers. A limited number of algorithms has been proposed and their
relevance to real world problems is a subject of active investigation. Analysis
of many-body quantum system is particularly challenging for classical computers
due to the exponential scaling of Hilbert space dimension with the number of
particles. Hence, solving problems relevant to chemistry and condensed matter
physics are expected to be the first successful applications of quantum
computers. In this paper, we propose another class of problems from the quantum
realm that can be solved efficiently on quantum computers: model inference for
nuclear magnetic resonance (NMR) spectroscopy, which is important for
biological and medical research.
Our results are based on the cumulation of three interconnected studies.
Firstly, we use methods from classical machine learning to analyze a dataset of
NMR spectra of small molecules. We perform a stochastic neighborhood embedding
and identify clusters of spectra, and demonstrate that these clusters are
correlated with the covalent structure of the molecules. Secondly, we propose a
simple and efficient method, aided by a quantum simulator, to extract the NMR
spectrum of any hypothetical molecule described by a parametric Heisenberg
model. Thirdly, we propose an efficient variational Bayesian inference
procedure for extracting Hamiltonian parameters of experimentally relevant NMR
spectra