Ağyüz, U.Işçi, S.Öztürk, C.Ademoğlu, A.Otu, H.H.2024-07-182024-07-1820139781479907014https://doi.org/10.1109/HIBIT.2013.6661680https://hdl.handle.net/11411/6397BSN Anatolia;European Commission;Fulbright;ODTU Teknokent2013 8th International Symposium on Health Informatics and Bioinformatics, HIBIT 2013 -- 25 September 2013 through 27 September 2013 -- Ankara -- 101984One of the main problems in systems biology is learning gene interaction networks from experimental data. This turns out to be a challenging task as the experimental data is sparse and noisy, and network learning algorithms are computationally intense. Bayesian Networks (BN) have become a popular choice for learning such networks as BNs avoid overfitting and are robust to noise. In this paper we build up on our established framework, Bayesian Network Prior, where we incorporate existing biological knowledge in learning gene interaction networks. However, biological phenomena are time-dependent and there is need to extend the static structure of learning approaches to a temporal level. Here, we present a Dynamic BN framework, which learns interaction networks between different time points in time-series data. Both intra and inter networks are learnt and compared to standard DBN learning algorithms. Our results based on synthetic and simulated gene expression data suggest that the proposed method outperforms existing approaches in identifying the underlying network structure. The proposed framework is robust to errors in the incorporated knowledge and can combine various experimental data types together with existing knowledge when learning networks. © 2013 IEEE.eninfo:eu-repo/semantics/closedAccessDynamic Bayesian NetworksExternal Biological KnowledgeGene İnteraction NetworksMicroarrayTime-Series DataActive NetworksBioinformaticsGene ExpressionLearning AlgorithmsMicroarraysBiological PhenomenaDynamic Bayesian NetworksExternal Biological KnowledgeGene Expression DataGene İnteraction NetworksInteraction NetworksNetwork Learning AlgorithmsTime-Series DataBayesian NetworksConference Object2-s2.0-8489263081910.1109/HIBIT.2013.6661680N/A