Search results for "equilibrium"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
32	Andrew Gilpin, Tuomas Sandholm	A Texas Hold'em poker player based on automated abstraction and real-time equilibrium computation.	AAMAS	2006	DBLP DOI BibTeX RDF	equilibrium computation, game theory, game playing
32	Takashi Matsuhisa, Paul Strokan	Bayesian Communication Leading to a Nash Equilibrium in Belief.	WINE	2005	DBLP DOI BibTeX RDF	p-Belief system, Bayesian communication, Non-corporative game, Protocol, Nash equilibrium, Conjecture
32	Takashi Matsuhisa	p-Belief Communication Leading to a Nash Equilibrium.	CIS	2004	DBLP DOI BibTeX RDF	p-Belief system, Non-corporative game, Communication, Protocol, Nash equilibrium, Conjecture
32	Ricardo García, Ángel Marín	Parking Capacity and Pricing in Park'n Ride Trips: A Continuous Equilibrium Network Design Problem.	Ann. Oper. Res.	2002	DBLP DOI BibTeX RDF	parking capacity and fares in park'n ride trips, bilevel mathematical programming, multicommodity network equilibrium model with combined modes, simulated annealing, network design problem
32	Mukul Majumdar, Vladimir Rotar	Some General Results on Equilibrium Prices in Large Random Exchange Economies.	Ann. Oper. Res.	2002	DBLP DOI BibTeX RDF	random preferences and endowments, exchange economy, asymptotic normality, equilibrium prices
32	Christos H. Papadimitriou	The Search for Equilibrium Concepts.	SAGT	2008	DBLP DOI BibTeX RDF
32	Spyros C. Kontogiannis, Paul G. Spirakis	Equilibrium Points in Fear of Correlated Threats.	WINE	2008	DBLP DOI BibTeX RDF
32	Xiaotie Deng	Fixed Point Computation and Equilibrium.	FAW	2008	DBLP DOI BibTeX RDF
32	Gürdal Arslan, Mehmet Fatih Demirkol, Yang Song	Equilibrium Efficiency Improvement in MIMO Interference Systems: A Decentralized Stream Control Approach.	IEEE Trans. Wirel. Commun.	2007	DBLP DOI BibTeX RDF
32	Yizhar Or, Elon Rimon	Geometric Characterization and Experimental Validation of Frictional 3-Contact Equilibrium Stances in Three-Dimensions.	ICRA	2007	DBLP DOI BibTeX RDF
32	Kenneth J. Arrow	Getting to Economic Equilibrium: A Problem and Its History.	WINE	2007	DBLP DOI BibTeX RDF
32	Ishai Menache, Nahum Shimkin	Fixed-Rate Equilibrium in Wireless Collision Channels.	NET-COOP	2007	DBLP DOI BibTeX RDF
32	Sergiu Hart, Yishay Mansour	The communication complexity of uncoupled nash equilibrium procedures.	STOC	2007	DBLP DOI BibTeX RDF	communication complexity, computational game theory
32	Dinesh Garg, Kamal Jain, Kunal Talwar, Vijay V. Vazirani	A Primal-Dual Algorithm for Computing Fisher Equilibrium in the Absence of Gross Substitutability Property.	WINE	2005	DBLP DOI BibTeX RDF
32	Jian Yao, Bert Willems, Shmuel S. Oren, Ilan Adler	Cournot Equilibrium in Price-Capped Two-Settlement Electricity Markets.	HICSS	2005	DBLP DOI BibTeX RDF
32	John Fasoulas, Zoe Doulgeri	Equilibrium Conditions of a Rigid Object Grasped by Elastic Rolling Contacts.	ICRA	2004	DBLP DOI BibTeX RDF
32	David Pearce 0001, Agustín Valverde	Towards a First Order Equilibrium Logic for Nonmonotonic Reasoning.	JELIA	2004	DBLP DOI BibTeX RDF
32	David Sarne, Meirav Hadad, Sarit Kraus	Auction Equilibrium Strategies for Task Allocation in Uncertain Environments.	CIA	2004	DBLP DOI BibTeX RDF
32	Denver Dash, Marek J. Druzdzel	Caveats for Causal Reasoning with Equilibrium Models.	ECSQARU	2001	DBLP DOI BibTeX RDF
32	David Pearce 0001, Inman P. de Guzmán, Agustín Valverde	Computing Equilibrium Models Using Signed Formulas.	Computational Logic	2000	DBLP DOI BibTeX RDF
29	Lai-Jiu Lin 0001	Systems of variational inclusion problems and differential inclusion problems with applications.	J. Glob. Optim.	2009	DBLP DOI BibTeX RDF	Systems of variational inclusion problem, Systems of variational differential inclusion problems, Systems of equilibrium problems, Mathematical program with systems of variational differential inclusion constraints, Mathematical program with systems of equilibrium constraints
29	Siriphong Lawphongpanich, Donald W. Hearn	An MPEC approach to second-best toll pricing.	Math. Program.	2004	DBLP DOI BibTeX RDF	Congestion Pricing, Mathematical Programming with Equilibrium Constraints, Traffic Equilibrium
29	Rahul Garg 0001, Abhinav Kamra, Varun Khurana	A game-theoretic approach towards congestion control in communication networks.	Comput. Commun. Rev.	2002	DBLP DOI BibTeX RDF	stackelberg equilibrium, scheduling, game theory, congestion control, TCP, fairness, GPS, nash equilibrium, generalized processor sharing, RIS, DWS
29	Eyal Even-Dar, Yishay Mansour, Uri Nadav	On the convergence of regret minimization dynamics in concave games.	STOC	2009	DBLP DOI BibTeX RDF	learning equilibrium, algorithmic game theory, regret minimization
29	Ishai Menache, Nahum Shimkin	Noncooperative power control and transmission scheduling in wireless collision channels.	SIGMETRICS	2008	DBLP DOI BibTeX RDF	non-cooperative multiple access, power efficient nash equilibrium, uplink collision channel, water-filling power allocation, channel state information
29	Stéphane Le Roux 0001	Graphs and Path Equilibria.	AAIM	2008	DBLP DOI BibTeX RDF	Labelled directed graph, strict weak order, optimisation, preference, induction, equilibrium, sufficient condition, path, necessary condition
29	Vincent Conitzer, Tuomas Sandholm	AWESOME: A general multiagent learning algorithm that converges in self-play and learns a best response against stationary opponents.	Mach. Learn.	2007	DBLP DOI BibTeX RDF	Learning in games, Game theory, Nash equilibrium
29	Liane Lewin-Eytan, Joseph Naor, Ariel Orda	Maximum-lifetime routing: system optimization & game-theoretic perspectives.	MobiHoc	2007	DBLP DOI BibTeX RDF	anycast game, multicast game, nash equilibrium, price of anarchy, price of stability
29	Moshe Babaioff, Robert Kleinberg, Christos H. Papadimitriou	Congestion games with malicious players.	EC	2007	DBLP DOI BibTeX RDF	malicious behavior, equilibrium, selfish routing, congestion games
29	Márk Félegyházi, Jean-Pierre Hubaux, Levente Buttyán	Nash Equilibria of Packet Forwarding Strategies in Wireless Ad Hoc Networks.	IEEE Trans. Mob. Comput.	2006	DBLP DOI BibTeX RDF	Ad hoc networks, game theory, graph theory, cooperation, Nash equilibrium
29	Ola Rozenfeld, Moshe Tennenholtz	Strong and Correlated Strong Equilibria in Monotone Congestion Games.	WINE	2006	DBLP DOI BibTeX RDF	Strong Equilibrium, Congestion Games
29	Edith Elkind, Leslie Ann Goldberg, Paul W. Goldberg	Nash equilibria in graphical games on trees revisited.	EC	2006	DBLP DOI BibTeX RDF	PPAD-completeness, nash equilibrium, graphical games
29	Li-ming Wang, Yang Bai	Exploiting Based Pre-testing in Competition Environment.	PRIMA	2006	DBLP DOI BibTeX RDF	Game Theory, Reinforcement Learning, Nash Equilibrium, Competition, Exploiter
29	Zvi Lotker, Boaz Patt-Shamir, Mark R. Tuttle	Publish and perish: definition and analysis of an n-person publication impact game.	SPAA	2006	DBLP DOI BibTeX RDF	timing games, nash equilibrium, numerical algorithms
29	June Dong, Ding Zhang, Hong Yan 0002, Anna Nagurney	Multitiered Supply Chain Networks: Multicriteria Decision - Making Under Uncertainty.	Ann. Oper. Res.	2005	DBLP DOI BibTeX RDF	network equilibrium, supply chains, variational inequalities, multicriteria decision-making, decision-making under uncertainty
29	Sarah Koskie, Zoran Gajic	A Nash game algorithm for SIR-based power control in 3G wireless CDMA networks.	IEEE/ACM Trans. Netw.	2005	DBLP DOI BibTeX RDF	wireless communications, power control, Nash equilibrium, CSMA-CD, noncooperative games
29	Michal Feldman, Kevin Lai, Li Zhang 0001	A price-anticipating resource allocation mechanism for distributed shared clusters.	EC	2005	DBLP DOI BibTeX RDF	price-anticipating mechanism, resource allocation, fairness, Nash equilibrium, price of anarchy
29	Michal Penn, Maria Polukarov, Moshe Tennenholtz	Congestion games with failures.	EC	2005	DBLP DOI BibTeX RDF	pure-strategy nash, failures, equilibrium, congestion games
29	Nahum Shimkin, Avishai Mandelbaum	Rational Abandonment from Tele-Queues: Nonlinear Waiting Costs with Heterogeneous Preferences.	Queueing Syst. Theory Appl.	2004	DBLP DOI BibTeX RDF	tele-queues or invisible queues, abandonment, telephone call centers, Nash equilibrium, multi-server queues, impatient customers, contact centers
29	Joan Feigenbaum, Lance Fortnow, David M. Pennock, Rahul Sami	Computation in a distributed information market.	EC	2003	DBLP DOI BibTeX RDF	convergence to equilibrium, distributed information market, market computation, rational expectations, information aggregation, efficient markets hypothesis
29	Luiz Augusto N. Barroso, Marcia Helena Costa Fampa, Rafael Kelman, Mario V. F. Pereira, Priscila Lino	Market Power Issues in Bid-Based Hydrothermal Dispatch.	Ann. Oper. Res.	2002	DBLP DOI BibTeX RDF	hydrothermal scheduling, market power, Cournot-Nash equilibrium, game theory, stochastic optimization
29	Xi Chen 0001, Shang-Hua Teng	Spending Is Not Easier Than Trading: On the Computational Equivalence of Fisher and Arrow-Debreu Equilibria.	ISAAC	2009	DBLP DOI BibTeX RDF
29	Michael Ummels, Dominik Wojtczak	Decision Problems for Nash Equilibria in Stochastic Games.	CSL	2009	DBLP DOI BibTeX RDF
29	Ishai Menache, Nahum Shimkin	Rate-Based Equilibria in Collision Channels with Fading.	IEEE J. Sel. Areas Commun.	2008	DBLP DOI BibTeX RDF
29	Michael Ummels	The Complexity of Nash Equilibria in Infinite Multiplayer Games.	FoSSaCS	2008	DBLP DOI BibTeX RDF
29	Dimitris Fotakis 0001, Paul G. Spirakis	Cost-Balancing Tolls for Atomic Network Congestion Games.	WINE	2007	DBLP DOI BibTeX RDF
29	S. Shaheen Fatima, Michael J. Wooldridge, Nicholas R. Jennings	Approximate and online multi-issue negotiation.	AAMAS	2007	DBLP DOI BibTeX RDF	game-theory, approximation, negotiation, online computation
29	Jun Sun 0007, Eytan H. Modiano, Lizhong Zheng	Wireless channel allocation using an auction algorithm.	IEEE J. Sel. Areas Commun.	2006	DBLP DOI BibTeX RDF
29	Farhad Meshkati, Mung Chiang, H. Vincent Poor, Stuart C. Schwartz	A game-theoretic approach to energy-efficient power control in multicarrier CDMA systems.	IEEE J. Sel. Areas Commun.	2006	DBLP DOI BibTeX RDF
29	Xin Huang, Asuman E. Ozdaglar, Daron Acemoglu	Efficiency and Braess' Paradox under pricing in general networks.	IEEE J. Sel. Areas Commun.	2006	DBLP DOI BibTeX RDF
29	Michele Aghassi, Dimitris Bertsimas	Robust game theory.	Math. Program.	2006	DBLP DOI BibTeX RDF	Mathematics Subject Classification (2000) 90C05, 91A06, 91A15, 90C47, 91A10
29	Juliane Dunkel, Andreas S. Schulz	On the Complexity of Pure-Strategy Nash Equilibria in Congestion and Local-Effect Games.	WINE	2006	DBLP DOI BibTeX RDF
29	Stéphane Airiau, Sandip Sen	Learning Pareto-optimal Solutions in 2x2 Conflict Games.	LAMAS	2005	DBLP DOI BibTeX RDF
29	Krishnendu Chatterjee	Two-Player Nonzero-Sum omega-Regular Games.	CONCUR	2005	DBLP DOI BibTeX RDF
29	Jianzu Wu, Huiyu Xuan	Optimal Timing of Firms' R&D Investment Under Asymmetric Duopoly: A Real Options and Game-Theoretic Approach.	AAIM	2005	DBLP DOI BibTeX RDF	Optimal timing, R&D Investment, Asymmetric Duopoly, Game Theory, Real Options
29	Krishnendu Chatterjee, Thomas A. Henzinger, Marcin Jurdzinski	Games with Secure Equilibria.	FMCO	2004	DBLP DOI BibTeX RDF
29	Jiantao Song, Chaofeng Sha, Hong Zhu 0004	Nash Equilibria in Parallel Downloading with Multiple Clients.	ICDCS	2004	DBLP DOI BibTeX RDF
29	Elliot Anshelevich, Anirban Dasgupta 0001, Éva Tardos, Tom Wexler	Near-optimal network design with selfish agents.	STOC	2003	DBLP DOI BibTeX RDF	network design, price of anarchy
29	Sandip Sen, Stéphane Airiau, Rajatish Mukherjee	Towards a pareto-optimal solution in general-sum games.	AAMAS	2003	DBLP DOI BibTeX RDF	strategy revelation, agents, game playing
29	Cao Da-Jun, Xu Liang-Xian	A negotiation model of incomplete information under time constraints.	AAMAS	2002	DBLP DOI BibTeX RDF	agent, game theory, negotiation, bargaining
29	Rajatish Mukherjee, Bikramjit Banerjee, Sandip Sen	Learning Mutual Trust.	Trust in Cyber-societies	2000	DBLP DOI BibTeX RDF
29	Patricia M. Snyder, William J. Stewart 0001	An Approximate Numerical Solution for Multiclass Preemtive Priority Queues with General Service Time Distributions.	SIGMETRICS	1985	DBLP DOI BibTeX RDF
27	Joseph Y. Halpern	Erratum to: A nonstandard characterization of sequential equilibrium, perfect equilibrium, and proper equilibrium.	Int. J. Game Theory	2017	DBLP DOI BibTeX RDF
27	Joseph Y. Halpern	A nonstandard characterization of sequential equilibrium, perfect equilibrium, and proper equilibrium.	Int. J. Game Theory	2009	DBLP DOI BibTeX RDF
26	Barbara Panicucci, Massimo Pappalardo, Mauro Passacantando	On solving generalized Nash equilibrium problems via optimization.	Optim. Lett.	2009	DBLP DOI BibTeX RDF	Generalized Nash equilibrium problem, Nikaido-Isoda function, Descent method
26	S. H. Wang, J. Y. Fu	Stampacchia generalized vector quasi-equilibrium problem with set-valued mapping.	J. Glob. Optim.	2009	DBLP DOI BibTeX RDF	Generalized vector quasi-equilibrium problem, Set-valued mapping, C-convexity, Fixed point, Continuous selection
26	Thi Thu Van Nguyen, Jean-Jacques Strodiot, Van Hien Nguyen	The interior proximal extragradient method for solving equilibrium problems.	J. Glob. Optim.	2009	DBLP DOI BibTeX RDF	Interior proximal method, Logarithmic-quadratic proximal method, Extragradient method, Armijo-backtracking linesearch, Equilibrium problems
26	Lu-Chuan Ceng, Qamrul Hasan Ansari, Jen-Chih Yao	Viscosity approximation methods for generalized equilibrium problems and fixed point problems.	J. Glob. Optim.	2009	DBLP DOI BibTeX RDF	Viscosity approximation method, Generalized equilibrium problem, Nonexpansive mappings, Strong convergence, Fixed points
26	Yong Long, Jin Peng, Kakuzo Iwamura	Uncertain equilibrium analysis on profits distribution between partner firms in competitive strategic alliances.	Soft Comput.	2009	DBLP DOI BibTeX RDF	Competitive strategic alliances, Profits distribution, Equilibrium under uncertainty, Choquet integral
26	Mohamad K. Hasan	Multimodal, multicommodity international freight simultaneous transportation network equilibrium model.	Telecommun. Syst.	2009	DBLP DOI BibTeX RDF	International multimodal multicommodity network, Simultaneous transportation network equilibrium model, Integrated transport network, Integrated transport system, Globalization and regional integration, International freight transport, Importers, Exporters
26	Kai Lin, Keqiu Li, Hongwei Ge, Yanming Shen	An equilibrium multi-hop cluster hierarchy for wireless sensor networks.	IWCMC	2009	DBLP DOI BibTeX RDF	cluster distribution, clustering routing, energy equilibrium, wireless sensor networks, lifetime
26	Shengjie Li, Jing Zeng	Existences of solutions for generalized vector quasi-equilibrium problems.	Optim. Lett.	2008	DBLP DOI BibTeX RDF	Generalized vector quasi-equilibrium problem, Compactly open, Compactly closed, Upper semicontinuity, Fixed point theorem
26	Patrizia Daniele	Lagrange multipliers and infinite-dimensional equilibrium problems.	J. Glob. Optim.	2008	DBLP DOI BibTeX RDF	Separation theory, Quasi relative interior, Lagrange multipliers, Equilibrium problems
26	Annamaria Barbagallo	Regularity results for evolutionary nonlinear variational and quasi-variational inequalities with applications to dynamic equilibrium problems.	J. Glob. Optim.	2008	DBLP DOI BibTeX RDF	Traffic equilibrium problems, Time-dependent variational and quasi-variational inequalities, Continuity of solutions, Mosco’s convergence
26	Lai-Jiu Lin 0001, Wei-Shih Du	Systems of equilibrium problems with applications to new variants of Ekeland's variational principle, fixed point theorems and parametric optimization problems.	J. Glob. Optim.	2008	DBLP DOI BibTeX RDF	?-function, Quasi-distance, Ekeland’s variational principle, Flower petal theorem, Maximal element theorem, Minimax theorem, Minimization theorem, Semi-infinite problem, Generalized Schauder’s fixed point theorem, Equilibrium problem
26	Ramin Rajabioun, Esmaeil Atashpaz-Gargari, Caro Lucas	Colonial Competitive Algorithm as a Tool for Nash Equilibrium Point Achievement.	ICCSA (2)	2008	DBLP DOI BibTeX RDF	Colonial Competitive Algorithm (CCA), global Nash Equilibrium, evolutionary algorithms, game theory
26	Eyal Even-Dar, Alexander Kesselman, Yishay Mansour	Convergence time to Nash equilibrium in load balancing.	ACM Trans. Algorithms	2007	DBLP DOI BibTeX RDF	game theory, Nash equilibrium, convergence time
26	Hui Cao 0001, Anish Arora	Stabilization in Dynamic Systems with Varying Equilibrium.	SSS	2007	DBLP DOI BibTeX RDF	Optimality, Stabilization, Control, Equilibrium, MiniMax
26	Fernando Ordóñez, Nicolás E. Stier Moses	Robust Wardrop Equilibrium.	NET-COOP	2007	DBLP DOI BibTeX RDF	Robust Shortest Path, Robust Game Theory, Network Games, Robust Optimization, Wardrop Equilibrium
26	Takashi Matsuhisa	Communication Leading to Nash Equilibrium Through Robust Messages - S5 -Knowledge Model Case -.	COCOA	2007	DBLP DOI BibTeX RDF	Robust message, Non-corporative game, S5-knowledge model, Communication, Protocol, Nash equilibrium, Conjecture
26	Fang Wu, Li Zhang 0001	Proportional response dynamics leads to market equilibrium.	STOC	2007	DBLP DOI BibTeX RDF	matrix equilibrium, matrix scaling, peer to peer sharing, proportional response dyanmics
26	Matteo Matteucci, Lorenzo Mussone	Ant colony optimization technique for equilibrium assignment in congested transportation networks.	GECCO	2006	DBLP DOI BibTeX RDF	non separable cost, user equilibrium assignment, transportation networks, ant colony system
26	Xinwei Liu, Jie Sun 0001	Generalized stationary points and an interior-point method for mathematical programs with equilibrium constraints.	Math. Program.	2004	DBLP DOI BibTeX RDF	Interior-point methods, Global convergence, Stationary point, Mathematical programming with equilibrium constraints
26	Gürkan Kumbaroglu, Reinhard Madlener	Energy and Climate Policy Analysis with the Hybrid Bottom-Up Computable General Equilibrium Model SCREEN: The Case of the Swiss CO2 Act.	Ann. Oper. Res.	2003	DBLP DOI BibTeX RDF	dynamic computable general equilibrium model, mixed complementarity problem, top-down bottom-up modeling, sustainable energy policy, environmental taxation, energy-economy interactions, climate change
26	Kwang Mong Sim	Equilibrium analyses of market-driven agents.	SIGecom Exch.	2003	DBLP DOI BibTeX RDF	e-negotiation, market-driven agent, sequential equilibrium
26	Alejandro Jofré, Roger J.-B. Wets	Continuity Properties of Walras Equilibrium Points.	Ann. Oper. Res.	2002	DBLP DOI BibTeX RDF	lopsided convergence, Ky Fan functions, min/sup-points, max/inf-points, market equilibrium
26	Pablo Dorta-González, Dolores-Rosa Santos-Peñate, Rafael Suárez-Vega	Pareto Optimal Allocation and Price Equilibrium for a Duopoly with Negative Externality.	Ann. Oper. Res.	2002	DBLP DOI BibTeX RDF	duopoly, prices, equilibrium, externality
26	Steven Schockaert, Jeroen Janssen, Dirk Vermeir, Martine De Cock	Answer Sets in a Fuzzy Equilibrium Logic.	RR	2009	DBLP DOI BibTeX RDF
26	Fabio Raciti	Equilibrium conditions and vector variational inequalities: a complex relation.	J. Glob. Optim.	2008	DBLP DOI BibTeX RDF	PACS 47H04, 47H05, 49J40
26	Yinyu Ye 0001	A path to the Arrow-Debreu competitive market equilibrium.	Math. Program.	2008	DBLP DOI BibTeX RDF	Mathematics Subject Classifications 91B50, 90C25, 90C51
26	Rainer Feldmann, Marios Mavronicolas, Andreas Pieris	Facets of the Fully Mixed Nash Equilibrium Conjecture.	SAGT	2008	DBLP DOI BibTeX RDF
26	Herbert E. Scarf	The Elements of General Equilibrium Theory.	WINE	2008	DBLP DOI BibTeX RDF
26	Wan Huang, Bernhard von Stengel	Computing an Extensive-Form Correlated Equilibrium in Polynomial Time.	WINE	2008	DBLP DOI BibTeX RDF
26	Ishai Menache, Nahum Shimkin	Efficient Rate-Constrained Nash Equilibrium in Collision Channels with State Information.	INFOCOM	2008	DBLP DOI BibTeX RDF
26	Thomas Gabel, Martin A. Riedmiller	Joint Equilibrium Policy Search for Multi-Agent Scheduling Problems.	MATES	2008	DBLP DOI BibTeX RDF
26	Fang-Fang Hao, Yan-Kui Liu	On the Continuity of Equilibrium Chance Functions.	FSKD (1)	2008	DBLP DOI BibTeX RDF
26	Xiaoceng Wu	Traffic Equilibrium Assignment for Multiclass Network Based on Similarity Measure.	FSKD (3)	2008	DBLP DOI BibTeX RDF
26	Sourabh Bhattacharya, Alan E. Gelfand, Kent E. Holsinger	Model fitting and inference under latent equilibrium processes.	Stat. Comput.	2007	DBLP DOI BibTeX RDF	Allele, Migration, Mutation, MCMC, Bayesian hierarchical model
26	Amarda Shehu, Cecilia Clementi, Lydia E. Kavraki	Sampling Conformation Space to Model Equilibrium Fluctuations in Proteins.	Algorithmica	2007	DBLP DOI BibTeX RDF
26	Min Jiang	Finding Pure Nash Equilibrium of Graphical Game Via Constraints Satisfaction Approach.	ESCAPE	2007	DBLP DOI BibTeX RDF