Search results for "biological"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
17	Jialiang Wu, Eberhard Voit	Integrative biological systems modeling: challenges and opportunities.	Frontiers Comput. Sci. China	2009	DBLP DOI BibTeX RDF	biochemical systems theory, hybrid functional Petri net, toggle switch, canonical modeling, stochastic delay, Petri net, hybrid modeling
17	Amin R. Mazloom, Kalyan Basu, Subhrangsu S. Mandal, Sajal K. Das 0001	Modeling a Complex Biological Network with Temporal Heterogeneity: Cardiac Myocyte Plasticity as a Case Study.	Complex (1)	2009	DBLP DOI BibTeX RDF
17	Bin Dong, Yu Mao, Ivo D. Dinov, Zhuowen Tu, Yonggang Shi, Yalin Wang 0001, Arthur W. Toga	Wavelet-Based Representation of Biological Shapes.	ISVC (1)	2009	DBLP DOI BibTeX RDF
17	Eithon Cadag, Peter Tarczy-Hornoch, Peter J. Myler	On the Reachability of Trustworthy Information from Integrated Exploratory Biological Queries.	DILS	2009	DBLP DOI BibTeX RDF
17	Katherine James, Anil Wipat, Jennifer Hallinan	Integration of Full-Coverage Probabilistic Functional Networks with Relevance to Specific Biological Processes.	DILS	2009	DBLP DOI BibTeX RDF	clustering, relevance, network analysis, Integrated networks
17	Bastien Rance, Jean-François Gibrat, Christine Froidevaux	An Adaptive Combination of Matchers: Application to the Mapping of Biological Ontologies for Genome Annotation.	DILS	2009	DBLP DOI BibTeX RDF	instance-based matcher, functional annotation of genomes, Ontology mapping
17	Peter E. Larsen, Yang Dai	Using Gene Expression Modeling to Determine Biological Relevance of Putative Regulatory Networks.	ISBRA	2009	DBLP DOI BibTeX RDF	expression modeling network, Gene expression, least-squares, linear model, regulatory network
17	Olga Drblíková, Karol Mikula, Nadine Peyriéras	The Nonlinear Tensor Diffusion in Segmentation of Meaningful Biological Structures from Image Sequences of Zebrafish Embryogenesis.	SSVM	2009	DBLP DOI BibTeX RDF
17	Thao Dang 0001, Colas Le Guernic, Oded Maler	Computing Reachable States for Nonlinear Biological Models.	CMSB	2009	DBLP DOI BibTeX RDF
17	Sumit Kumar Jha 0001, Edmund M. Clarke, Christopher James Langmead, Axel Legay, André Platzer, Paolo Zuliani	A Bayesian Approach to Model Checking Biological Systems.	CMSB	2009	DBLP DOI BibTeX RDF
17	Douglas Densmore, Anne Van Devender, Matthew Johnson 0008, Nade Sritanyaratana	A platform-based design environment for synthetic biological systems.	Richard Tapia Celebration of Diversity in Computing Conference	2009	DBLP DOI BibTeX RDF	platform-based design, synthetic biology
17	Xinghua Shi, Rick L. Stevens	A Bayesian Approach to High-Throughput Biological Model Generation.	BICoB	2009	DBLP DOI BibTeX RDF
17	Shijie Zhang, Shirong Li, Jiong Yang 0001	GADDI: distance index based subgraph matching in biological networks.	EDBT	2009	DBLP DOI BibTeX RDF
17	Aaron Barsky, Tamara Munzner, Jennifer L. Gardy, Robert Kincaid	Cerebral: Visualizing Multiple Experimental Conditions on a Graph with Biological Context.	IEEE Trans. Vis. Comput. Graph.	2008	DBLP DOI BibTeX RDF
17	Mohamed T. Elhadi, Wojciech Ziarko	A Rough Sets Approach to the Identification and Analysis of Factors Affecting Biological Control of Leafy Spurge.	Trans. Rough Sets	2008	DBLP DOI BibTeX RDF
17	Christopher M. Taylor, Arvin Agah	Data Mining and Genetic Algorithms: Finding Hidden Meaning in Biological and Biomedical Data.	Computational Intelligence in Biomedicine and Bioinformatics	2008	DBLP DOI BibTeX RDF
17	Beata Sokolowska, Adam Józwik	Recognition of Cycles of Repeated Hypoxia on the Basis of Time Periods in Biological Model.	Computer Recognition Systems 2	2008	DBLP DOI BibTeX RDF
17	Elisa Drelie Gelasca, Jiyun Byun, Boguslaw Obara, B. S. Manjunath	Evaluation and benchmark for biological image segmentation.	ICIP	2008	DBLP DOI BibTeX RDF
17	George Zheng, Athman Bouguettaya	Discovering Pathways of Service Oriented Biological Processes.	WISE	2008	DBLP DOI BibTeX RDF
17	Brian Quanz, Meeyoung Park, Jun Huan	Biological pathways as features for microarray data classification.	DTMBIO	2008	DBLP DOI BibTeX RDF	classification, feature selection, microarray, pathways
17	Mohamed Y. Eltabakh, Mourad Ouzzani, Walid G. Aref, Ahmed K. Elmagarmid, Yasin Laura-Silva, Muhammad Umer Arshad, David E. Salt, Ivan Baxter	Managing Biological Data using BDBMS.	ICDE	2008	DBLP DOI BibTeX RDF
17	Elzbieta Krepska, Nicola Bonzanni, K. Anton Feenstra, Wan J. Fokkink, Thilo Kielmann, Henri E. Bal, Jaap Heringa	Design Issues for Qualitative Modelling of Biological Cells with Petri Nets.	FMSB	2008	DBLP DOI BibTeX RDF
17	Elena Baralis, Alessandro Fiori, Lorenzo Montrucchio	BioSumm: A novel summarizer oriented to biological information.	BIBE	2008	DBLP DOI BibTeX RDF
17	Mio Seki, Jun Sese	Identification of active biological networks and common expression conditions.	BIBE	2008	DBLP DOI BibTeX RDF
17	Chetan Kumar, Nishith Kumar, Sarani Rangarajan, Narayanaswamy Balakrishnan 0001, Kanagaraj Sekar	A Method to Find Sequentially Separated Motifs in Biological Sequences (SSMBS).	PRIB	2008	DBLP DOI BibTeX RDF	protein and nucleotide sequences, sequence motifs, Regular expressions
17	David A. Hecht, Rouh-Mei Hu, Rong-Ming Chen, Jong-Waye Ou, Chao-Yen Hsu, Haitao Gong, Ka-Lok Ng, Han C. W. Hsiao, Jeffrey J. P. Tsai, Phillip C.-Y. Sheu	BioSemantic System: Applications of Structured Natural Language to Biological and Biochemical Research.	SUTC	2008	DBLP DOI BibTeX RDF	structured natural language, semantic computing, bioinformatics, biomedical research
17	Wei Wei 0006, Yong Qi, Xin He, Wei Wang 0015, Ruidong Li, Hui He	Improving the Survivability of WSNs with Biological Characters Based on Rejuvenation Technology.	APSCC	2008	DBLP DOI BibTeX RDF
17	Maria Mirto, Sandro Fiore, Massimo Cafaro, Marco Passante, Giovanni Aloisio	A Grid-Based Bioinformatics Wrapper for Biological Databases.	CBMS	2008	DBLP DOI BibTeX RDF	Grid Computing, Bioinformatics, Data Management
17	Azzedine Boukerche, Marcelo Nardelli Pinto Santana, Alba Cristina Magalhaes Alves de Melo	A task allocation framework for biological sequence comparison applications in heterogeneous environments.	IPDPS	2008	DBLP DOI BibTeX RDF
17	Byung-Hoon Park, Matthew C. Schmidt, Kevin Thomas 0002, Tatiana V. Karpinets, Nagiza F. Samatova	Parallel, scalable, memory-efficient backtracking for combinatoria modeling of large-scale biological systems.	IPDPS	2008	DBLP DOI BibTeX RDF
17	Steve Dworschak, Torsten Grote, Arne König, Torsten Schaub, Philippe Veber	The System BioC for Reasoning about Biological Models in Action Language C.	ICTAI (1)	2008	DBLP DOI BibTeX RDF
17	Michalis E. Blazadonakis, Michalis E. Zervakis	Revealing Significant Biological Knowledge via Gene Ontologies and Pathways.	BMEI (1)	2008	DBLP DOI BibTeX RDF	Marker Selection, Gene Signature, Survival Prediction, Gene Ontologies, DNA microarray, Pathways
17	Joseph L. McClay, Edwin J. C. G. van den Oord	A Theoretical Systems Biology Analysis Suggests Gene-Environment Interaction Effects are Common at the Most Basic Levels of Biological Organization.	BMEI (1)	2008	DBLP DOI BibTeX RDF	interaction, systems, environment, gene, kinetics
17	Alberto D. Pascual-Montano	Non-negative matrix factorization in bioinformatics: Towards understanding biological processes.	ISCAS	2008	DBLP DOI BibTeX RDF
17	Dan Ashlock, Elizabeth Warner	Classifying synthetic and biological DNA sequences with side effect machines.	CIBCB	2008	DBLP DOI BibTeX RDF
17	Mehmet Tan, Mohammed Al-Shalalfa, Reda Alhajj, Faruk Polat	Combining multiple types of biological data in constraint-based learning of gene regulatory networks.	CIBCB	2008	DBLP DOI BibTeX RDF
17	Mika Timonen, Antti Pesonen	Combining Context and Existing Knowledge When Recognizing Biological Entities - Early Results.	PAKDD	2008	DBLP DOI BibTeX RDF	entity recognition, entity classification, information extraction, bioinformatics
17	Wenyuan Li 0005, Ying Liu 0007, Hung-Chung Huang, Yanxiong Peng, Yongjing Lin, Wee Keong Ng, Kok-Leong Ong	Dynamical Systems for Discovering Protein Complexes and Functional Modules from Biological Networks.	IEEE ACM Trans. Comput. Biol. Bioinform.	2007	DBLP DOI BibTeX RDF	bioinformatics databases, evolutionary computing, Graph algorithms, neural nets
17	Weiguo Liu, Bertil Schmidt, Gerrit Voss, Wolfgang Müller-Wittig	Streaming Algorithms for Biological Sequence Alignment on GPUs.	IEEE Trans. Parallel Distributed Syst.	2007	DBLP DOI BibTeX RDF	dynamic programming, graphics hardware, GPGPU, multiple sequence alignment, Streaming architectures, pairwise sequence alignment
17	Vassilis Tsatsaias, Petros Daras, Michael G. Strintzis	3D Protein Classification using Topological, Geometrical and Biological Information.	ICIP (6)	2007	DBLP DOI BibTeX RDF
17	Joyita Mallik, Ashok Samal, Scott L. Gardner	A Content Based Pattern Analysis System for a Biological Specimen Collection.	ICDM Workshops	2007	DBLP DOI BibTeX RDF
17	Lorenzo Dematté, Corrado Priami, Alessandro Romanel	BetaWB: modelling and simulating biological processes.	SCSC	2007	DBLP BibTeX RDF	systems biology, stochastic simulation, process calculi
17	Zong-Xian Yin, Jung-Hsien Chiang	Patterns Discovery on Complex Diagnosis and Biological Data Using Fuzzy Latent Variables.	ICDE	2007	DBLP DOI BibTeX RDF
17	Lin Guo, Jayavel Shanmugasundaram, Golan Yona	Topology Search over Biological Databases.	ICDE	2007	DBLP DOI BibTeX RDF
17	Francisco-Javier Lopez, Armando Blanco, Fernando García-Alcalde, Antonio Marín	Extracting Biological Knowledge by Fuzzy Association Rule Mining.	FUZZ-IEEE	2007	DBLP DOI BibTeX RDF
17	Jiejun Kong, Xiaoyan Hong, Dapeng Wu 0001, Mario Gerla	Complexity-theoretic Modeling of Biological Cyanide Poisoning as Security Attack in Self-organizing Networks.	BIBE	2007	DBLP DOI BibTeX RDF
17	Jeffrey L. Tilson, Gloria Rendon, Mao-Feng Ger, Eric Jakobsson	MotifNetwork: A Grid-enabled Workflow for High-throughput Domain Analysis of Biological Sequences: Implications for annotation and study of phylogeny, protein interactions, and intraspecies variation.	BIBE	2007	DBLP DOI BibTeX RDF
17	Arif Ghafoor, J. Paul Robinson	Knowledge Modeling for High Content Screening of Multimedia Biological Data.	BIBE	2007	DBLP DOI BibTeX RDF
17	Xu-Ning Tang, Zhichao Lian, Zhi-Li Pei, Yanchun Liang 0001	Automated Methods of Predicting the Function of Biological Sequences Using GO and Rough Set.	PRIB	2007	DBLP DOI BibTeX RDF	Rough Set Theory, BLAST, GO
17	André R. da Cruz, Rodrigo T. N. Cardoso, Elizabeth F. Wanner, Ricardo H. C. Takahashi	A multiobjective non-linear dynamic programming approach for optimal biological control in soy farming via NSGA-II.	IEEE Congress on Evolutionary Computation	2007	DBLP DOI BibTeX RDF
17	Anil Aswani, Claire J. Tomlin	Reachability Algorithm for Biological Piecewise-Affine Hybrid Systems.	HSCC	2007	DBLP DOI BibTeX RDF
17	Anders Bjorholm Dahl, Henrik Aanæs, Rasmus Larsen 0001, Bjarne K. Ersbøll	Classification of Biological Objects Using Active Appearance Modelling and Color Cooccurrence Matrices.	SCIA	2007	DBLP DOI BibTeX RDF
17	Minh Duc Cao, Trevor I. Dix, Lloyd Allison, Chris Mears	A Simple Statistical Algorithm for Biological Sequence Compression.	DCC	2007	DBLP DOI BibTeX RDF
17	Kenji Doya	Designing the Reward System: Computational and Biological Principles.	FOCI	2007	DBLP DOI BibTeX RDF
17	Minghui Jiang 0001, Martin Mayne, Joel Gillespie	Delta: A Toolset for the Structural Analysis of Biological Sequences on a 3D Triangular Lattice.	ISBRA	2007	DBLP DOI BibTeX RDF
17	Yun Wang, Rao Zheng, Yanjiang Qiao	Modeling, Learning and Simulating Biological Cells with Entity Grammar.	International Conference on Computational Science (4)	2007	DBLP DOI BibTeX RDF	entity grammar system, complex system, systems biology
17	Razvan Andonie, Levente Fabry-Asztalos, Lukas Magill, Sarah Abdul-Wahid	A New Fuzzy ARTMAP Approach for Predicting Biological Activity of Potential HIV-1 Protease Inhibitors.	BIBM	2007	DBLP DOI BibTeX RDF
17	Maria Luisa Guerriero, Corrado Priami, Alessandro Romanel	Modeling Static Biological Compartments with Beta-binders.	AB	2007	DBLP DOI BibTeX RDF
17	Stanislaw Sieniutycz	Entropy-Based Modeling and Simulation of Evolution in Biological Systems.	EUROCAST	2007	DBLP DOI BibTeX RDF
17	Cristian Versari, Nadia Busi	Stochastic Simulation of Biological Systems with Dynamical Compartment Structure.	CMSB	2007	DBLP DOI BibTeX RDF
17	Rié Komuro, Joel H. Reynolds, E. David Ford	Using Multiobjective Evolutionary Algorithms to Assess Biological Simulation Models.	EMO	2007	DBLP DOI BibTeX RDF	Pareto frontier, binary discrepancy measures, mechanistic model, model assessment, structural inference, process model, Multiobjective optimization, elitism
17	Wei-bang Chen, Chengcui Zhang, Xin Chen 0001	Biological Sequence Clustering and Classification with a Hybrid Method and Dynamic Programming.	AINA Workshops (1)	2007	DBLP DOI BibTeX RDF	hybrid clustering, hiearchical clustering, classification, dynamic programming, prediction, k-means, partition clustering, Sequence clustering, profile HMM
17	José Antônio Fernandes de Macêdo, Fábio Porto 0001, Sérgio Lifschitz, Philippe Picouet	Dealing with Some Conceptual Data Model Requirements for Biological Domains.	AINA Workshops (1)	2007	DBLP DOI BibTeX RDF
17	Jongil Jeong, Byunggul Ryu, Dongil Shin, Dongkyoo Shin	Integration of Distributed Biological Data Using Modified K-Means Algorithm.	PAKDD Workshops	2007	DBLP DOI BibTeX RDF	Bioinformatics, K-means algorithm, Distributed clustering
17	Sasitharan Balasubramaniam, Dmitri Botvich, Frank Walsh, William Donnelly, Sergey Sergeyev, Stephen F. Bush	Applying compartmentalisation techniques to communication protocols of biological Nano and MEMS devices.	BROADNETS	2007	DBLP DOI BibTeX RDF
17	Roberto Barbuti, Andrea Maggiolo-Schettini, Paolo Milazzo, Angelo Troina	The Calculus of Looping Sequences for Modeling Biological Membranes.	Workshop on Membrane Computing	2007	DBLP DOI BibTeX RDF
17	Kenji Watanabe, Takio Kurita	Automatic Factorization of Biological Signals Measured by Fluorescence Correlation Spectroscopy Using Non-negative Matrix Factorization.	ICONIP (2)	2007	DBLP DOI BibTeX RDF	Protein dynamics, Pattern recognition, Signal processing, NMF
17	Pierre-Yves Bourguignon, Vincent Danos, François Képès, Serge Smidtas, Vincent Schächter	Property-Driven Statistics of Biological Networks.	Trans. Comp. Sys. Biology	2006	DBLP DOI BibTeX RDF
17	Igor Jurisica, Janice I. Glasgow	Introduction: Knowledge Discovery in High-Throughput Biological Domains.	Inf. Syst. Frontiers	2006	DBLP DOI BibTeX RDF
17	Mohamed Y. Eltabakh, Walid G. Aref, Mourad Ouzzani, Mohamed H. Ali	Discovering Consensus Patterns in Biological Databases.	VDMB	2006	DBLP DOI BibTeX RDF
17	Miyoung Shin	A Novel Approach for Effective Learning of Cluster Structures with Biological Data Applications.	VDMB	2006	DBLP DOI BibTeX RDF
17	Meng Hu, Jiong Yang 0001	A Biological Text Retrieval System Based on Background Knowledge and User Feedback.	VDMB	2006	DBLP DOI BibTeX RDF
17	Michael Calonder, Stefan Bleuler, Eckart Zitzler	Module Identification from Heterogeneous Biological Data Using Multiobjective Evolutionary Algorithms.	PPSN	2006	DBLP DOI BibTeX RDF
17	Sandeep Tata, Jignesh M. Patel, James S. Friedman, Anand Swaroop	Declarative Querying for Biological Sequences.	ICDE	2006	DBLP DOI BibTeX RDF
17	Zoé Lacroix, Louiqa Raschid, Maria-Esther Vidal	Semantic Model to Integrate Biological Resources.	ICDE Workshops	2006	DBLP DOI BibTeX RDF	Ontology, Semantic Web, Integration, Bioinformatics, Mediation
17	Mehdi Boukallel, Maxime Girot, Stephane Régnier	Haptic Rendering of Biological Elastic Properties based on Biomechanical Characterization.	IROS	2006	DBLP DOI BibTeX RDF
17	Maxime Girot, Mehdi Boukallel, Stephane Régnier	Modeling Soft Contact Mechanism of Biological Cells Using an Atomic Force Bio-Microscope.	IROS	2006	DBLP DOI BibTeX RDF
17	Carole L. Palmer, Melissa H. Cragin, P. Bryan Heidorn	Supporting biological information work: research and education for digital resources and long-lived data.	JCDL	2006	DBLP DOI BibTeX RDF	long-lived data, digital libraries, standards, cyberinfrastructure
17	Xiangchao Gan, Alan Wee-Chung Liew, Hong Yan 0001	Microarray Missing Data Imputation based on a Set Theoretic Framework and Biological Constraints.	ICPR (3)	2006	DBLP DOI BibTeX RDF
17	Tibor Bosse, Catholijn M. Jonker, Jan Treur	Simulation and Analysis of Complex Biological Processes: an Organisation Modelling Perspective.	Annual Simulation Symposium	2006	DBLP DOI BibTeX RDF
17	Hiroyuki Matsuura, Nobuo Noda, Kazuyuki Koide, Tetsuya Nemoto, Kadahiro Kin, Ken-ichi Makino, Masahiro Nakano	Stochastic Mechanism and Its Dynamics in Biological System.	ICICIC (3)	2006	DBLP DOI BibTeX RDF
17	Xiaohua Zhou, Xiaodan Zhang, Xiaohua Hu 0001	MaxMatcher: Biological Concept Extraction Using Approximate Dictionary Lookup.	PRICAI	2006	DBLP DOI BibTeX RDF
17	Susanne Grell, Torsten Schaub, Joachim Selbig	Modelling Biological Networks by Action Languages Via Answer Set Programming.	ICLP	2006	DBLP DOI BibTeX RDF
17	Ramez Elmasri, Feng Ji, Jack Fu, Yiming Zhang 0012, Zoe Raja	Extending EER Modeling Concepts for Biological Data.	CBMS	2006	DBLP DOI BibTeX RDF
17	Victor M. Markowitz	An Application Driven Perspective on Biological Data Integration.	DILS	2006	DBLP DOI BibTeX RDF
17	David Harel	Comprehensive and realistic modeling of biological systems.	WSC	2006	DBLP DOI BibTeX RDF
17	Nadia Busi, Claudio Zandron	Modeling and analysis of biological processes by mem(brane) calculi and systems.	WSC	2006	DBLP DOI BibTeX RDF
17	Karel Bartusek, Eva Gescheidtova, Zdenek Smékal	Measuring the Diffusion of Nuclei in Biological Systems by Magnetic Resonance Methods: Checking the Quality of Gradient Magnetic Fields.	ICN/ICONS/MCL	2006	DBLP DOI BibTeX RDF
17	Hilario López García, Iván Machón González	Ammonium Estimation in a Biological Wastewater Plant Using Feedforward Neural Networks.	ANNPR	2006	DBLP DOI BibTeX RDF
17	Sylvain Saïghi, Yannick Bornat, Jean Tomas, Sylvie Renaud	Neuromimetic ICs and system for parameters extraction in biological neuron models.	ISCAS	2006	DBLP DOI BibTeX RDF
17	Luonan Chen, Ruiqi Wang, Xiabo Zhou, S. Wong	Designing synthetic biological networks.	ISCAS	2006	DBLP DOI BibTeX RDF
17	Preetam Ghosh, Samik Ghosh, Kalyan Basu, Sajal K. Das 0001, Simon Daefler	Stochastic Modeling of Cytoplasmic Reactions in Complex Biological Systems.	ICCSA (1)	2006	DBLP DOI BibTeX RDF
17	Joseph Schlecht, Kobus Barnard, Barry Pryor	Statistical Inference of Biological Structure and Point Spread Functions in 3D Microscopy.	3DPVT	2006	DBLP DOI BibTeX RDF
17	Razvan Andonie, Levente Fabry-Asztalos, Sarah Abdul-Wahid, Catharine Collar, Nicholas Salim	An Integrated Soft Computing Approach for Predicting Biological Activity of Potential HIV-1 Protease Inhibitors.	IJCNN	2006	DBLP DOI BibTeX RDF
17	Alan Rosen, David B. Rosen	A Neural Network Model of the Connectivity of the Biological Somatic Sensors.	IJCNN	2006	DBLP DOI BibTeX RDF
17	Toralf Kirsten, Jörg Lange, Erhard Rahm	An Integrated Platform for Analyzing Molecular-Biological Data Within Clinical Studies.	EDBT Workshops	2006	DBLP DOI BibTeX RDF
17	Christopher S. Oehmen, Lee Ann McCue, Joshua N. Adkins, Katrina M. Waters, Tim Carlson, William R. Cannon, Bobbie-Jo M. Webb-Robertson, Douglas J. Baxter, Elena S. Peterson, Mudita Singhal, Anuj R. Shah, Kyle R. Klicker	Analytics challenge - High-throughput visual analytics biological sciences: turning data into knowledge.	SC	2006	DBLP DOI BibTeX RDF
17	Noa Segall, Rebecca S. Green, David B. Kaber	User, robot and automation evaluations in high-throughput biological screening processes.	HRI	2006	DBLP DOI BibTeX RDF	abstraction hierarchy modeling, goal-directed task analysis, human error, cognitive task analysis, high-throughput screening
17	Alberto Moraglio, Riccardo Poli, Rolv Seehuus	Geometric Crossover for Biological Sequences.	EuroGP	2006	DBLP DOI BibTeX RDF
17	Mustafa Kirac, Ali Cakmak 0001, Gultekin Özsoyoglu	Task-Oriented Integrated Use of Biological Web Data Sources.	SSDBM	2006	DBLP DOI BibTeX RDF