Vine copula graphical models in the construction of biological networks

2019-09-19
Farnoudkia, Hajar
Purutçuoğlu Gazi, Vilda

Suggestions

Vine copula graphical models in the construction of biological networks
Farnoudkia, Hajar; Purutçuoğlu Gazi, Vilda (2021-01-01)
The copula Gaussian graphical model (CGGM) is one of the major mathematical models for high dimensional biological networks which provides a graphical representation, espe-cially, for sparse networks. Basically, this model uses a regression of the Gaussian graphical model (GGM) whose precision matrix describes the conditional dependence between the variables to estimate the coefficients of the linear regression model. The Bayesian inference for the model parameters is used to overcome the dimensional limita...
Vine copula and artificial neural network models to analyze breast cancer data
Farnoudkia, Hajar; Purutçuoğlu Gazi, Vilda (Walter de Gruyter, Inc., 2021-02-01)
Graph convolutional networks for region of interest classification in breast histopathology
Aygüneş, Bulut; AKSOY, SELİM; Cinbiş, Ramazan Gökberk; KÖSEMEHMETOĞLU, KEMAL; Önder, Sevgen; Üner, Ayşegül (2020-03-16)
Deep learning-based approaches have shown highly successful performance in the categorization of digitized biopsy samples. The commonly used setting in these approaches is to employ convolutional neural networks for classification of data sets consisting of images all having the same size. However, the clinical practice in breast histopathology necessitates multi-class categorization of regions of interest (ROI) in biopsy samples where these regions can have arbitrary shapes and sizes. The typical solution ...
Graph-based joint channel estimation and data detection for large-scale multiuser MIMO-OFDM systems /
Tekin, Şeref Yaşar; Yılmaz, Ali Özgür; Department of Electrical and Electronics Engineering (2015)
In this thesis, a graph-based soft iterative receiver for large-scale multiuser MIMO-OFDM systems is proposed that performs joint channel estimation and data detection over time-varying frequency selective channel. In an uplink scenario, factor graph structures for the transmitter of users and the receiver of base-station are presented, which provide Gaussian message passing between nodes. Instead of LLR, reliability information of symbols are used to decrease complexity of the proposed algorithm. Training ...
Lattice boltzmann automaton model to simulate fluid flow in synthetic fractures
Eker, Erdinç; Akın, Serhat; Department of Petroleum and Natural Gas Engineering (2005)
Modeling of flow in porous and fractured media is a very important problem in reservoir engineering. As for numerical simulations conventional Navier-Stokes codes are applied to flow in both porous and fractured media. But they have long computation times, poor convergence and problems of numerical instabilities. Therefore, it is desired to develop another computational method that is more efficient and use simple rules to represent the flow in fractured media rather than partial differential equations. In ...
Citation Formats
H. Farnoudkia and V. Purutçuoğlu Gazi, “Vine copula graphical models in the construction of biological networks,” 2019, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/78360.