Search results for "Catastrophe"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
147	Fei Yu 0001, Yue Shen, Guangxue Yue, Ronghui Wu, Cheng Xu 0001	Catastrophe Prediction of Cnaphalocrosis Medinalis Based on Fuzzy Reasoning.	International Conference on Computational Science (3)	2007	DBLP DOI BibTeX RDF
131	Yu-Kai Huang	The Study of Customer Segmentation Examined by Catastrophe Model.	II3E	2008	DBLP DOI BibTeX RDF
115	Roger Cerf	Catastrophe Theory Enables Moves to be Detected Towards and Away from Self-Organization: The Example of Epileptic Seizure Onset.	Biol. Cybern.	2006	DBLP DOI BibTeX RDF
52	S. Alves, Boris Koldehofe, Hugo Miranda, François Taïani	Design of a backup network for catastrophe scenarios.	IWCMC	2009	DBLP DOI BibTeX RDF	backup networks, resilience, emergency communications
52	Basel M. Al-Eideh	Population Moments of a Birth and Death Diffusion Model with Immigration and General Catastrophe Process.	MUE	2007	DBLP DOI BibTeX RDF
52	Randolph D. Nelson	Stochastic catastrophe theory in computer performance modeling.	J. ACM	1987	DBLP DOI BibTeX RDF
41	Masoud Mirmomeni, Caro Lucas, Babak Nadjar Araabi	Using Neurofuzzy Models and Spectral Analysis for Prediction of the Exotic Phenomena with Catastrophic Jumps.	ICCSA (1)	2008	DBLP DOI BibTeX RDF	neurofuzzy models, exotic phenomena, prediction, spectral analysis, Catastrophe theory
41	Carlo Cattani, Massimo Scalia	Wavelet Analysis of Pulses in the Fitzhugh Model.	ICCSA (1)	2008	DBLP DOI BibTeX RDF	Short Haar Wavelet Transform, Catastrophe, Haar wavelets, Phase space
41	Arjan Kuijper, Luc Florack	The Relevance of Non-Generic Events in Scale Space Models.	Int. J. Comput. Vis.	2004	DBLP DOI BibTeX RDF	multi-scale segmentation, topology, scale space, critical points, catastrophe theory, deep structure
41	Antonio Di Crescenzo, Virginia Giorno, Amelia G. Nobile, Luigi M. Ricciardi	On the M/M/1 Queue with Catastrophes and Its Continuous Approximation.	Queueing Syst. Theory Appl.	2003	DBLP DOI BibTeX RDF	catastrophe waiting time, busy period, first-passage time, Wiener process
41	Mads Nielsen, Ole Fogh Olsen	The Structure of the Optic Flow Field.	ECCV (2)	1998	DBLP DOI BibTeX RDF	equivalence under deformation, flow structure, flow topology, optic flow, attention, scale-space, singularities, turbulence, transversality, catastrophe theory
41	Guang-Liang Li, Fang-Ming Li	An Analysis of Impacts of Long-Term Traffic Correlations on Congestion Control in ATM-Based Local Computer Networks.	LCN	1996	DBLP DOI BibTeX RDF	long-term traffic correlations, ATM based local computer networks, cell rate, traffic source, peak cell rate, asynchronous transfer mode, congestion control, data, network performance, quality of service guarantees, video traffic, catastrophe theory, network load
40	Ding-Geng Din Chen, Xinguang Jim Chen, Wan Tang, Feng Lin 0008	Sample Size Determination to Detect Cusp Catastrophe in Stochastic Cusp Catastrophe Model: A Monte-Carlo Simulation-Based Approach.	SBP	2014	DBLP DOI BibTeX RDF
32	Robert McGorman	CNSR06 Panel Discussion: A Short and Grim Fairy Tale.	CNSR	2006	DBLP DOI BibTeX RDF
32	Arjan Kuijper, Luc Florack	Understanding and Modeling the Evolution of Critical Points under Gaussian Blurring.	ECCV (1)	2002	DBLP DOI BibTeX RDF
25	Igor Yevin, Alexander Koblyakov	Hopfield's Model of Patterns Recognition and Laws of Artistic Perception.	Complex (2)	2009	DBLP DOI BibTeX RDF	Wundt curve, musical tonality, ambiguity, catastrophe theory
25	Tim Poston, Ankur Dhanik, Etienne Burdet, Chee Leong Teo	Haptics of Buckling.	WHC	2005	DBLP DOI BibTeX RDF	buckling, catastrophe, Zeeman machine, haptic, bifurcation, determinacy
25	Stiliyan Kalitzin, Bart M. ter Haar Romeny, Max A. Viergever	On Topological Deep-Structure Segmentation.	ICIP (2)	1997	DBLP DOI BibTeX RDF	topological deep-structure segmentation, hierarchical segmentation model, linear scale evolution, winding number distribution, singularity catastrophes, singular isophotes, image segmentation, Voronoi diagrams, distance measure, gray-scale images, saddle points, Voronoi cells, catastrophe theory, gradient vector field
25	Barton T. Stander, John C. Hart	Guaranteeing the topology of an implicit surface polygonization for interactive modeling.	SIGGRAPH	1997	DBLP DOI BibTeX RDF	topology, implicit surfaces, polygonization, interactive modeling, particle systems, interval analysis, critical points, Morse theory, catastrophe theory
25	James J. Clark	Singularity Theory and Phantom Edges in Scale Space.	IEEE Trans. Pattern Anal. Mach. Intell.	1988	DBLP DOI BibTeX RDF	1D signal, singularity theory, phantom edges, contrast functions, filter scale, catastrophy theory, scale map contours, pattern recognition, pattern recognition, picture processing, picture processing, edge detection, signal processing, scale space, filtering and prediction theory, catastrophe theory
20	Yingjie Fan 0002, Frank Schwartz, Stefan Voß 0001, David L. Woodruff	Catastrophe insurance and flexible planning for supply chain disruption management: a stochastic simulation case study.	Int. J. Prod. Res.	2024	DBLP DOI BibTeX RDF
20	Fahad Al Saadi, Alan R. Champneys, Mike R. Jeffrey	Wave-Pinned Patterns for Cell Polarity - A Catastrophe Theory Explanation.	SIAM J. Appl. Dyn. Syst.	2024	DBLP DOI BibTeX RDF
20	Xiaochao Wei, Yanfei Zhang, Xin (Robert) Luo, Gangmei Pan, Guihua Nie	Qualitative Cusp Catastrophe Multi-Agent Simulation Model to Explore Abrupt Changes in Online Impulsive Buying Behavior.	J. Assoc. Inf. Syst.	2024	DBLP BibTeX RDF
20	Benjamin Plaut, Hanlin Zhu, Stuart Russell 0001	Avoiding Catastrophe in Continuous Spaces by Asking for Help.	CoRR	2024	DBLP DOI BibTeX RDF
20	Yufei Li, Nanyan Hu, Yicheng Ye, Menglong Wu	Improved catastrophe progression method of underground goaf risk evaluation.	J. Intell. Fuzzy Syst.	2023	DBLP DOI BibTeX RDF
20	Xiaochao Wei, Qiping She	Quantitative cusp catastrophe model to explore abrupt changes in collaborative regulation behavior of e-commerce platforms.	Inf. Sci.	2023	DBLP DOI BibTeX RDF
20	Stefanos Leonardos, Joseph Sakos, Costas Courcoubetis, Georgios Piliouras	Catastrophe by Design in Population Games: A Mechanism to Destabilize Inefficient Locked-in Technologies.	ACM Trans. Economics and Comput.	2023	DBLP DOI BibTeX RDF
20	Anna Dittus, Niklas Kruse, Ingo Barke, Sylvia Speller, Jens Starke	Detecting Stability and Bifurcation Points in Control-Based Continuation for a Physical Experiment of the Zeeman Catastrophe Machine.	SIAM J. Appl. Dyn. Syst.	2023	DBLP DOI BibTeX RDF
20	Xiaomeng Ma, Bin Hu	The domination effect of the intelligent environment in the catastrophe mechanism of investor behavior.	Inf. Process. Manag.	2023	DBLP DOI BibTeX RDF
20	Daniel Anthes, Sushrut Thorat, Peter König, Tim C. Kietzmann	Diagnosing Catastrophe: Large parts of accuracy loss in continual learning can be accounted for by readout misalignment.	CoRR	2023	DBLP DOI BibTeX RDF
20	Naim E. Mackel, Jing Yang, Adolfo del Campo	Quantum Alchemy and Universal Orthogonality Catastrophe in One-Dimensional Anyons.	Quantum	2023	DBLP DOI BibTeX RDF
20	Raina Raj, Vidyottama Jain	Resource and traffic control optimization in MMAP[c]/PH[c]/S queueing system with PH retrial times and catastrophe phenomenon.	Telecommun. Syst.	2023	DBLP DOI BibTeX RDF
20	Ting-An Chen, De-Nian Yang, Ming-Syan Chen	Overcoming Forgetting Catastrophe in Quantization-Aware Training.	ICCV	2023	DBLP DOI BibTeX RDF
20	Ranjan Pal, Stuart E. Madnick, Michael Siegel	Catastrophe Bond Trading Can Boost Security Improving Cyber (Re-)Insurance Markets.	AMCIS	2023	DBLP BibTeX RDF
20	Xingyu Wang, Chang-Han Rhee	Importance Sampling Strategy for Heavy-Tailed Systems with Catastrophe Principle.	WSC	2023	DBLP DOI BibTeX RDF
20	Yury N. Kovalyov, Tetiana Shmelova, Yuliya Sikirda, Maxim Yatsko	Catastrophe as an Anti-System: Prevention of the Flight Emergency Development.	DESSERT	2023	DBLP DOI BibTeX RDF
20	M. Priadarsini, J. Akilandeswari, S. P. Priyadharshini, R. Janani Devi, V. Abi Priya	Discovering Informative Data from Catastrophe Tweets Using Sentiment Analysis.	ICCCNT	2023	DBLP DOI BibTeX RDF
20	Yi Song 0004, Bin Hu 0006, Heqiang Xue	Evolution of employee opinion in a crowdsourcing logistics company: a catastrophe-embedded RA model.	Simul.	2022	DBLP DOI BibTeX RDF
20	Weiliang Tao, Yan Liu	Baseline Correction Algorithm Based on Catastrophe Point Detection and Lipschitz Exponent's Analysis.	Int. J. Pattern Recognit. Artif. Intell.	2022	DBLP DOI BibTeX RDF
20	Kazuhito Yamasaki, Takahiro Yajima	Kosambi-Cartan-Chern Analysis of the Nonequilibrium Singular Point in One-Dimensional Elementary Catastrophe.	Int. J. Bifurc. Chaos	2022	DBLP DOI BibTeX RDF
20	Zhaoxi Liu, Wei Wei 0038, Lingfeng Wang 0001	An Extreme Value Theory-Based Catastrophe Bond Design for Cyber Risk Management of Power Systems.	IEEE Trans. Smart Grid	2022	DBLP DOI BibTeX RDF
20	Stefanos Leonardos, Georgios Piliouras	Exploration-exploitation in multi-agent learning: Catastrophe theory meets game theory.	Artif. Intell.	2022	DBLP DOI BibTeX RDF
20	Abhiram Iyer, Karan Grewal, Akash Velu, Lucas Oliveira Souza, Jeremy Forest, Subutai Ahmad	Avoiding Catastrophe: Active Dendrites Enable Multi-Task Learning in Dynamic Environments.	CoRR	2022	DBLP BibTeX RDF
20	Menna Hassan, Nourhan Sakr, Arthur Charpentier	Government Intervention in Catastrophe Insurance Markets: A Reinforcement Learning Approach.	CoRR	2022	DBLP DOI BibTeX RDF
20	Dimitrios Stamovlasis, Vaitsa Giannouli, Julie Vaiopoulou, Magda Tsolaki	Catastrophe Theory Applied to Neuropsychological Data: Nonlinear Effects of Depression on Financial Capacity in Amnestic Mild Cognitive Impairment and Dementia.	Entropy	2022	DBLP DOI BibTeX RDF
20	Abhiram Iyer, Karan Grewal, Akash Velu, Lucas Oliveira Souza, Jeremy Forest, Subutai Ahmad	Avoiding Catastrophe: Active Dendrites Enable Multi-Task Learning in Dynamic Environments.	Frontiers Neurorobotics	2022	DBLP DOI BibTeX RDF
20	Weifeng Gong, Yahui Li, Chuanhui Wang, Hai-xia Zhang, Zhengjie Zhai	The Catastrophe Analysis of Shanghai Crude Oil Futures Price from the Perspective of Volatility Factors.	Complex.	2022	DBLP DOI BibTeX RDF
20	Nian Zhang, Qian Pan, Guiwu Wei 0001	Application of catastrophe progression method on hybrid multiple attribute decision-making problems based on regret theory.	J. Intell. Fuzzy Syst.	2021	DBLP DOI BibTeX RDF
20	Massimo Arnone, Michele Leonardo Bianchi, Anna Grazia Quaranta, Gian Luca Tassinari	Catastrophic risks and the pricing of catastrophe equity put options.	Comput. Manag. Sci.	2021	DBLP DOI BibTeX RDF
20	Michael W. Beach, Tyler Fox	Value Sensitive Speculative Design: Exploring More-Than-Human Relations in the Age of Climate Catastrophe.	IxD&A	2021	DBLP BibTeX RDF
20	Chris Gagne 0001, Peter Dayan	Catastrophe, Compounding & Consistency in Choice.	CoRR	2021	DBLP BibTeX RDF
20	Sasanka Sekhar Chanda, Sai Yayavaram	Overcoming Complexity Catastrophe: An Algorithm for Beneficial Far-Reaching Adaptation under High Complexity.	CoRR	2021	DBLP BibTeX RDF
20	Syed Ather Hussain	Catastrophe theory in work from heartbeats to eye movements.	Biol. Cybern.	2021	DBLP DOI BibTeX RDF
20	Yingbing Fan, Lina Sun, Xiangru Chen	Research on Stock Price Prediction Based on Catastrophe Theory.	CIPAE	2021	DBLP DOI BibTeX RDF
20	Bo Hou, Changsong Ma	Enterprise Financial Risk Early Warning System Based on Catastrophe Progression Method.	ICMTEL (1)	2021	DBLP DOI BibTeX RDF
20	Stefanos Leonardos, Georgios Piliouras	Exploration-Exploitation in Multi-Agent Learning: Catastrophe Theory Meets Game Theory.	AAAI	2021	DBLP DOI BibTeX RDF
20	Jinxian Yang, Lijun Chao	A Novel Orientation Recursive Algorithm Aiming at Catastrophe Signals in MWD.	IEEE Trans. Ind. Electron.	2020	DBLP DOI BibTeX RDF
20	Dingtao Shen, Tianlu Qian, Yu Xia, Yu Zhang, Jiechen Wang	Micro-scale Flood Hazard Assessment Based on Catastrophe Theory and an Integrated 2-D Hydraulic Model: A Case Study of Gongshuangcha Detention Basin in Dongting Lake Area, China.	ISPRS Int. J. Geo Inf.	2020	DBLP DOI BibTeX RDF
20	Nitin Kumar, Farida Parvez Barbhuiya, Umesh Chandra Gupta	Analysis of a geometric catastrophe model with discrete-time batch renewal arrival process.	RAIRO Oper. Res.	2020	DBLP DOI BibTeX RDF
20	Yuan Li, Zuqing Hu, Zhen Li, Yanyan Kong, M. K. D. K. Piyaratne, Bailing Wang, Huiyan Zhao	Generalized population dynamics model of aphids in wheat based on catastrophe theory.	Biosyst.	2020	DBLP DOI BibTeX RDF
20	Wencheng Huang 0001, Rui Zhang, Minhao Xu, Yaocheng Yu, Yifei Xu, Gatesi Jean De Dieu	Risk state changes analysis of railway dangerous goods transportation system: Based on the cusp catastrophe model.	Reliab. Eng. Syst. Saf.	2020	DBLP DOI BibTeX RDF
20	Claire Prudhomme, Ana Roxin, Christophe Cruz, Frank Boochs	Modélisation sémantique et programmation générative pour une simulation multi-agent dans le contexte de gestion de catastrophe.	Rev. Int. Géomatique	2020	DBLP DOI BibTeX RDF
20	Shenming Song, Chen Wang	Incentivizing catastrophe risk sharing.	IISE Trans.	2020	DBLP DOI BibTeX RDF
20	Yangyang Liu, Mingyu Zhai, Jiahui Jin, Aibo Song, Jikeng Lin, Zhiang Wu 0001, Yixin Zhao	Intelligent online catastrophe assessment and preventive control via a stacked denoising autoencoder.	Neurocomputing	2020	DBLP DOI BibTeX RDF
20	Xiaofei Lin, Shouxin Song, Huaiyuan Zhai, Pengwei Yuan, Mingli Chen 0005	Using catastrophe theory to analyze subway fire accidents.	Int. J. Syst. Assur. Eng. Manag.	2020	DBLP DOI BibTeX RDF
20	Ranadeep Daw, Zhuoqiong He	Deep Neural Network in Cusp Catastrophe Model.	CoRR	2020	DBLP BibTeX RDF
20	Stefanos Leonardos, Georgios Piliouras	Exploration-Exploitation in Multi-Agent Learning: Catastrophe Theory Meets Game Theory.	CoRR	2020	DBLP BibTeX RDF
20	Stefanos Leonardos, Iosif Sakos, Costas Courcoubetis, Georgios Piliouras	Catastrophe by Design in Population Games: Destabilizing Wasteful Locked-in Technologies.	CoRR	2020	DBLP BibTeX RDF
20	Irmand Mikiela, V. Lanza, Nathalie Verdière	Optimal control in a mathematical model of human behavior during a catastrophe.	ECC	2020	DBLP BibTeX RDF
20	Stefanos Leonardos, Iosif Sakos, Costas Courcoubetis, Georgios Piliouras	Catastrophe by Design in Population Games: Destabilizing WastefulLocked-In Technologies.	WINE	2020	DBLP BibTeX RDF
20	Manuel Casal Guisande, Jorge Cerqueiro-Pequeño, Alberto Comesaña-Campos, José Benito Bouza-Rodríguez	Conceptual Proposal of a Hierarchization System for Patients Candidate to Intensive Care Units in Health Catastrophe Situations.	TEEM	2020	DBLP DOI BibTeX RDF
20	Maciej Romaniuk	Imprecise Approaches to Analysis of Insurance Portfolio with Catastrophe Bond.	IPMU (3)	2020	DBLP DOI BibTeX RDF
20	Pim Heijnen, Lammertjan Dam	Catastrophe and Cooperation.	Dyn. Games Appl.	2019	DBLP DOI BibTeX RDF
20	Shiliang Liu, Wenping Li	Fuzzy comprehensive risk evaluation of roof water inrush based on catastrophe theory in the Jurassic coalfield of northwest China.	J. Intell. Fuzzy Syst.	2019	DBLP DOI BibTeX RDF
20	Alan R. Champneys, Tim J. Dodwell, Rainer M. J. Groh, Giles W. Hunt, Robin M. Neville, Alberto Pirrera, Amir Hosein Sakhaei, Mark Schenk, M. Ahmer Wadee	Happy Catastrophe: Recent Progress in Analysis and Exploitation of Elastic Instability.	Frontiers Appl. Math. Stat.	2019	DBLP DOI BibTeX RDF
20	David M. Frank	Ethics of the scientist qua policy advisor: inductive risk, uncertainty, and catastrophe in climate economics.	Synth.	2019	DBLP DOI BibTeX RDF
20	Eric Montigny, Philippe Dubois, Thierry Giasson	On the edge of glory (...or catastrophe): regulation, transparency and party democracy in data-driven campaigning in Québec.	Internet Policy Rev.	2019	DBLP DOI BibTeX RDF
20	Jialin Li, Wei Li 0078	A new quantum evolutionary algorithm using dynamic rotation angle catastrophe for knapsack problem.	Int. J. Intell. Inf. Database Syst.	2019	DBLP DOI BibTeX RDF
20	Leila Khatibzadeh, Zarrintaj Bornaee, Abbas Ghaemi Bafghi	Applying Catastrophe Theory for Network Anomaly Detection in Cloud Computing Traffic.	Secur. Commun. Networks	2019	DBLP DOI BibTeX RDF
20	Gail A. Carpenter	Looking to the future: Learning from experience, averting catastrophe.	Neural Networks	2019	DBLP DOI BibTeX RDF
20	Gail A. Carpenter	Looking to the future: Learning from experience, averting catastrophe.	Neural Networks	2019	DBLP DOI BibTeX RDF
20	Hong Liu 0021, Chunmei Ai	Empirical research on rural e-commerce development level index system based on catastrophe progression method.	Clust. Comput.	2019	DBLP DOI BibTeX RDF
20	Nicolas Médoc, Hélène Bourgoin, Philippe Pinheiro, Mohammad Ghoniem	Using a Multi-Level and Multi-Resolution Visual Analytics Software to Understand the Aftermath of a Catastrophe.	VAST	2019	DBLP DOI BibTeX RDF
20	Carole Bernard, Christoph M. Rheinberger, Nicolas Treich	Catastrophe Aversion and Risk Equity in an Interdependent World.	Manag. Sci.	2018	DBLP DOI BibTeX RDF
20	Chuan-Ju Wang, Tian-Shyr Dai	An Accurate Lattice Model for Pricing Catastrophe Equity Put Under the Jump-Diffusion Process.	IEEE Comput. Intell. Mag.	2018	DBLP DOI BibTeX RDF
20	Mai Mahmoud Eladany, Azza Ahmed Eldesouky, Abdelhay Ahmed Sallam	Power System Transient Stability: An Algorithm for Assessment and Enhancement Based on Catastrophe Theory and FACTS Devices.	IEEE Access	2018	DBLP DOI BibTeX RDF
20	Xinhu Cao, Jasmine Siu Lee Lam	Simulation-based catastrophe-induced port loss estimation.	Reliab. Eng. Syst. Saf.	2018	DBLP DOI BibTeX RDF
20	Ghulam Fiza Mirza, Aqeel Ahmed, Nafeesa Bohra, Sorath Khan, Azam Rafique Memon, Anum Talpur	Performance Analysis of Location Based Smart Catastrophe Monitoring System Using WSN.	Wirel. Pers. Commun.	2018	DBLP DOI BibTeX RDF
20	Khanik Kerobyan, Ruben Kerobyan, Koffi Enakoutsa	Infinite-server queueing model with MAPkGk Markov arrival streams, random volume of customers in random environment subject to catastrophe.	CoRR	2018	DBLP BibTeX RDF
20	Kristian Ejlebjerg Jensen, Peter Szabó, Fridolin Okkels	A Viscoelastic Catastrophe.	CoRR	2018	DBLP BibTeX RDF
20	Mayank Mittal, Abhinav Valada, Wolfram Burgard	Vision-based Autonomous Landing in Catastrophe-Struck Environments.	CoRR	2018	DBLP BibTeX RDF
20	Bin Hu 0006, Xiaolin Hu 0002	Qualitative modeling of catastrophe in group opinion.	Soft Comput.	2018	DBLP DOI BibTeX RDF
20	Guillaume Lagarde, Sylvain Perifel	Lempel-Ziv: a "one-bit catastrophe" but not a tragedy.	SODA	2018	DBLP DOI BibTeX RDF
20	Isabel Dórdio Dimas, Teresa Rebelo, Paulo Renato Lourenço, Humberto Rocha	A Cusp Catastrophe Model for Satisfaction, Conflict, and Conflict Management in Teams.	ICCSA (2)	2018	DBLP DOI BibTeX RDF
20	Anthony Michael Barrett, Seth D. Baum	A model of pathways to artificial superintelligence catastrophe for risk and decision analysis.	J. Exp. Theor. Artif. Intell.	2017	DBLP DOI BibTeX RDF
20	Jia Shao, Apostolos D. Papaioannou, Athanasios A. Pantelous	Pricing and simulating catastrophe risk bonds in a Markov-dependent environment.	Appl. Math. Comput.	2017	DBLP DOI BibTeX RDF
20	Asti Meiza, Sutawanir Darwis, Agus Yodi Gunawan, Efi Fitriana	Quantitative Analysis of the Relationship between Three Psychological Parameters Based on Swallowtail Catastrophe Model.	Int. J. Math. Math. Sci.	2017	DBLP DOI BibTeX RDF
20	Shuliang Lv, Ruixian Yang, Chuanchao Huang	Contusion and recovery of individual cognition based on catastrophe theory: A computational model.	Neurocomputing	2017	DBLP DOI BibTeX RDF
20	Nick Georgiopoulos	Pricing catastrophe bonds with multistage stochastic programming.	Comput. Manag. Sci.	2017	DBLP DOI BibTeX RDF
20	Mahdi Zarei	Feature selection algorithm based on Catastrophe model to improve the performance of regression analysis.	CoRR	2017	DBLP BibTeX RDF