Search results for "mdl"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
84	Jan Poland, Marcus Hutter	Asymptotics of discrete MDL for online prediction.	IEEE Trans. Inf. Theory	2005	DBLP DOI BibTeX RDF
82	Fengzhan Tian, Yanfeng Zhang, Zhihai Wang, Houkuan Huang	Learning Bayesian Networks Using Evolutionary Algorithm and a Variant of MDL Score.	KES (3)	2007	DBLP DOI BibTeX RDF	MDL score, Learning, Evolutionary algorithm, Bayesian networks, Mutual information
73	Horst Bischof, Ales Leonardis, Alexander Selb	MDL Principle for Robust Vector Quantisation.	Pattern Anal. Appl.	1999	DBLP DOI BibTeX RDF	Colour-image segmentation, Clustering, Robustness, Image coding, Minimum Description Length, Vector quantisation
62	Tadashi Murakami	DBPowder-mdl: Mapping Description Language between Applications and Databases.	ACIS-ICIS	2008	DBLP DOI BibTeX RDF
62	Qiming Luo, Taghi M. Khoshgoftaar	Efficient Image Segmentation by Mean Shift Clustering and MDL-Guided Region Merging.	ICTAI	2004	DBLP DOI BibTeX RDF
62	Jan Poland, Marcus Hutter	Convergence of Discrete MDL for Sequential Prediction.	COLT	2004	DBLP DOI BibTeX RDF
62	Klaus Herrmann 0001	MESH Mdl - A Middleware for Self-Organization in Ad Hoc Networks.	ICDCS Workshops	2003	DBLP DOI BibTeX RDF
59	Yingnan Ma, Yi Zhao, Youhua Fan, Hong Hu, Xiujun Zhang	Modeling the Dynamics of the Human Pulse Data by MDL-optimal Neural Networks.	BMEI (2)	2008	DBLP DOI BibTeX RDF	Human Pulse Data, MDL-optimal
59	Song Chun Zhu, Tai Sing Lee, Alan L. Yuille	Region Competition: Unifying Snakes, Region Growing, Energy/Bayes/MDL for Multi-band Image Segmentation.	ICCV	1995	DBLP DOI BibTeX RDF	multiband image segmentation, variational principle, Bayes/MDL, boundary location, region competition algorithm, colour segmentation, optimize, image segmentation, edge detection, statistical analysis, Bayes methods, image texture, Minimum Description Length, color images, snakes, region growing, image colour analysis, texture segmentation, texture images, statistical approach, Bayes, statistical properties, region competition, grey level images
55	Tae Yeon Kim, Yun Kyu Kim, Heung Seok Chae	Towards Improving OCL-Based Descriptions of Software Metrics.	COMPSAC (1)	2009	DBLP DOI BibTeX RDF
54	Matthijs van Leeuwen, Jilles Vreeken, Arno Siebes	Compression Picks Item Sets That Matter.	PKDD	2006	DBLP DOI BibTeX RDF	classification, MDL, frequent item sets
53	Leila Shila Shafti, Eduardo Pérez	Fitness Function Comparison for GA-Based Feature Construction.	CAEPIA	2007	DBLP DOI BibTeX RDF	genetic algorithms, Machine learning, feature selection, Entropy, feature construction, MDL principle, attribute interaction
53	Igor Kononenko 0001	The Minimum Description Length Based Decision Tree Pruning.	PRICAI	1998	DBLP DOI BibTeX RDF	machine learning, decision trees, MDL principle
51	Yunbo Cao, Huizhong Duan, Chin-Yew Lin, Yong Yu 0001, Hsiao-Wuen Hon	Recommending questions using the mdl-based tree cut model.	WWW	2008	DBLP DOI BibTeX RDF	question recommendation, tree cut model, minimum description length, query suggestion
51	Peter Grünwald, John Langford 0001	Suboptimal behavior of Bayes and MDL in classification under misspecification.	Mach. Learn.	2007	DBLP DOI BibTeX RDF	Misspecification, Classification, Consistency, Inconsistency, Minimum description length, Bayesian statistics
51	Ivan O. Kyrgyzov, Olexiy O. Kyrgyzov, Henri Maître, Marine Campedel	Kernel MDL to Determine the Number of Clusters.	MLDM	2007	DBLP DOI BibTeX RDF
51	Amar Mitiche, Souad Hadjres	MDL estimation of a dense map of relative depth and 3D motion from a temporal sequence of images.	Pattern Anal. Appl.	2003	DBLP DOI BibTeX RDF	3D motion, Dense 3D interpretation, Minimum description length, Depth
49	Leila Shila Shafti, Eduardo Pérez	MDL-based fitness for feature construction.	GECCO	2007	DBLP DOI BibTeX RDF	machine learning, Entropy, MDL, fitness function, feature construction, attribute interaction
48	Yoshiki Tanaka, Kazuhisa Iwamoto, Kuniaki Uehara	Discovery of Time-Series Motif from Multi-Dimensional Data Based on MDL Principle.	Mach. Learn.	2005	DBLP DOI BibTeX RDF	time-series motifs, multi-dimensional time-series data, MDL principle good, PCA
48	Byron Dom	MDL estimation for small sample sizes and its application to segmenting binary strings.	CVPR	1997	DBLP DOI BibTeX RDF	MDL estimation, binary strings segmentation, minimum description length estimation, sharper code-length formulas, relative tractability, binary strings, piecewise Bernoulli assumption, Bernoulli source, pattern recognition, computer vision, computer vision, small sample sizes
48	Haisong Gu, Yoshiaki Shirai, Minoru Asada	MDL-Based Segmentation and Motion Modeling in a Long Image Sequence of Scene with Multiple Independently Moving Objects.	IEEE Trans. Pattern Anal. Mach. Intell.	1996	DBLP DOI BibTeX RDF	Long image sequence, motion estimation, MDL principle, spatiotemporal segmentation
44	Karim Tabia, Salem Benferhat	On the Use of Decision Trees as Behavioral Approaches in Intrusion Detection.	ICMLA	2008	DBLP DOI BibTeX RDF
44	Martin Styner, Ipek Oguz, Tobias Heimann, Guido Gerig	Minimum description length with local geometry.	ISBI	2008	DBLP DOI BibTeX RDF
44	Aleksandar Peckov, Saso Dzeroski, Ljupco Todorovski	A Minimal Description Length Scheme for Polynomial Regression.	PAKDD	2008	DBLP DOI BibTeX RDF	minimal description length, regression, polynomial regression
44	Sungho Kim, In-So Kweon	Simultaneous Classification and VisualWord Selection using Entropy-based Minimum Description Length.	ICPR (1)	2006	DBLP DOI BibTeX RDF
44	Ken Q. Pu, Alberto O. Mendelzon	Concise descriptions of subsets of structured sets.	ACM Trans. Database Syst.	2005	DBLP DOI BibTeX RDF	Minimal description length, query optimization, OLAP, summarization
44	Hans Henrik Thodberg	Minimum Description Length Shape and Appearance Models.	IPMI	2003	DBLP DOI BibTeX RDF	Point Correspondence Problem, Unsupervised Vision, Image Segmentation, Minimum Description Length, Shape Modelling, Appearance Models
44	Martin Styner, Kumar T. Rajamani, Lutz-Peter Nolte, Gabriel Zsemlye, Gábor Székely, Christopher J. Taylor 0001, Rhodri H. Davies	Evaluation of 3D Correspondence Methods for Model Building.	IPMI	2003	DBLP DOI BibTeX RDF
44	Alexandros Pappas, Duncan Fyfe Gillies	A New Measure for the Accuracy of a Bayesian Network.	MICAI	2002	DBLP DOI BibTeX RDF
44	Ming Li 0001, Paul M. B. Vitányi	Computational Machine Learning in Theory and Praxis.	Computer Science Today	1995	DBLP DOI BibTeX RDF
43	Ronnie Bathoorn, Arno Siebes	Finding Composite Episodes.	MCD	2007	DBLP DOI BibTeX RDF	Composite episodes, MDL
43	Andrea Bosin, Nicoletta Dessì, Diego Liberati, Barbara Pes	Learning Bayesian Classifiers from Gene-Expression MicroArray Data.	WILF	2005	DBLP DOI BibTeX RDF	Feature Selection, MDL, Bayesian Classifiers, Gene-Expression Data Analysis
43	Manuel Martínez-Morales, Nicandro Cruz-Ramírez, José Luis Jiménez-Andrade, Ramiro Garza-Domínguez	Bayes-N: An Algorithm for Learning Bayesian Networks from Data Using Local Measures of Information Gain Applied to Classification Problems.	MICAI	2004	DBLP DOI BibTeX RDF	data mining, machine learning, classification, Bayesian networks, MDL
42	Ken-ichi Kanatani	Uncertainty Modeling and Model Selection for Geometric Inference.	IEEE Trans. Pattern Anal. Mach. Intell.	2004	DBLP DOI BibTeX RDF	feature point extraction, asymptotic evaluation, geometric AIC, geometric MDL, Statistical method
42	César Ferri, José Hernández-Orallo, M. José Ramírez-Quintana	Induction of Decision Multi-trees Using Levin Search.	International Conference on Computational Science (1)	2002	DBLP DOI BibTeX RDF	Levin search, Machine Learning, Minimum Description Length (MDL), Decision-tree Induction, Inductive Logic Programming (ILP)
42	Henri Nicolas, Stéphane Pateux, Delphine Le Guen	Minimum Description Length Criterion for Region-Based Video Compression.	ICIP (1)	1997	DBLP DOI BibTeX RDF	minimum description length criterion, region-based video compression, MDL criterion, region-based motion compensation, partially coded, segmentation coding cost, data compression, video sequences, polygonal approximation, motion parameters, region-based segmentation, polygonal representation, displaced frame difference
40	Pieter W. Adriaans, Paul M. B. Vitányi	Approximation of the Two-Part MDL Code.	IEEE Trans. Inf. Theory	2009	DBLP DOI BibTeX RDF
40	T. Stephen Markham, Scott C. Evans, Jeremy Impson, Eric Steinbrecher	Implementation of an Incremental MDL-Based Two Part Compression Algorithm for Model Inference.	DCC	2009	DBLP DOI BibTeX RDF
40	Johan Karlsson 0002, Kalle Åström	MDL patch correspondences on unlabeled images.	ICPR	2008	DBLP DOI BibTeX RDF
40	Lei Huang 0001, Shunjun Wu, Xia Li	Reduced-Rank MDL Method for Source Enumeration in High-Resolution Array Processing.	IEEE Trans. Signal Process.	2007	DBLP DOI BibTeX RDF
40	Negar Bazargani, Aria Nosratinia, Kaundinya S. Gopinath, Richard W. Briggs	Fmri Baseline Drift Estimation Method by Mdl Principle.	ISBI	2007	DBLP DOI BibTeX RDF
40	Trevor M. Cickovski, Chris Sweet, Jesús A. Izaguirre	MDL, A Domain-Specific Language for Molecular Dynamics.	Annual Simulation Symposium	2007	DBLP DOI BibTeX RDF
40	Kalle Åström, Johan Karlsson 0002, Olof Enqvist, Anders Ericsson, Fredrik Kahl	Automatic Feature Point Correspondences and Shape Analysis with Missing Data and Outliers Using MDL.	SCIA	2007	DBLP DOI BibTeX RDF
40	Chung-Hsien Wu, Chia-Hsin Hsieh	Multiple change-point audio segmentation and classification using an MDL-based Gaussian model.	IEEE Trans. Speech Audio Process.	2006	DBLP DOI BibTeX RDF
40	Takami Satonaka, Keiichi Uchimura	Elliptic Metric K-NN Method with Asymptotic MDL Measure.	ICIP	2006	DBLP DOI BibTeX RDF
40	Peter Grünwald, John Langford 0001	Suboptimal Behavior of Bayes and MDL in Classification Under Misspecification.	COLT	2004	DBLP DOI BibTeX RDF
40	J. Stephen Downie	Workshop on the creation of standardized test collections, tasks and metrics for music information retrieval (MIR) and music digital library (MDL) evaluation.	JCDL	2002	DBLP DOI BibTeX RDF	music digital library evaluation, music information retrieval evaluation
40	Ales Leonardis, Horst Bischof	Multiple Eigenspaces by MDL.	ICPR	2000	DBLP DOI BibTeX RDF
40	Miles Osborne	DCG Induction Using MDL and Pased Corpora.	Learning Language in Logic	1999	DBLP DOI BibTeX RDF
40	Mário A. T. Figueiredo, José M. N. Leitão	Unsupervised image restoration and edge location using compound Gauss-Markov random fields and the MDL principle.	IEEE Trans. Image Process.	1997	DBLP DOI BibTeX RDF
40	Bernhard Pfahringer	A New MDL Measure for Robust Rule Induction (Extended Abstract).	ECML	1995	DBLP DOI BibTeX RDF
38	Jeffrey K. Hollingsworth, Barton P. Miller, M. J. R. Goncalves, Oscar Naim, Zhichen Xu, Ling Zheng	MDL: A Language and Compiler for Dynamic Program Instrumentation.	IEEE PACT	1997	DBLP DOI BibTeX RDF	dynamic program instrumentation, running programs, instrumentation code, PA-RISC, Power 2 architecture, Alpha architecture, x86 architecture, Metric Description Language, Paradyn Parallel Performance Tools, platform independent descriptions, message channels, modules, MDL, nodes, procedures, application program, compiler generators, SPARC, files, dynamic code generation, performance data
35	Francesco Bariatti, Peggy Cellier, Sébastien Ferré	KG-MDL: Mining Graph Patterns in Knowledge Graphs with the MDL Principle.	CoRR	2023	DBLP DOI BibTeX RDF
35	Kazumi Saito, Ryohei Nakano	MDL regularizer: a new regularizer based on the MDL principle.	ICNN	1997	DBLP DOI BibTeX RDF
33	Zihua Su, Tryphon Lambrou, Andrew Todd-Pokropek	Principal Geodesic Analysis for the Study of Nonlinear Minimum Description Length.	MIMI	2007	DBLP DOI BibTeX RDF	Principal Geodesic Analysis, Non-linear Statistical Shape Model, Minimum Description Length, Correspondence Problem
33	Jeen-Shing Wang, Hung-Yi Lin, Yu-Liang Hsu, Ya-Ting C. Yang	Using a Wiener-Type Recurrent Neural Network with the Minimum Description Length Principle for Dynamic System Identification.	ICIC (2)	2007	DBLP DOI BibTeX RDF	Wiener model, recurrent neural network, minimum description length
33	Zhiwu Lu 0001, Xiaoqing Lu, Zhiyuan Ye	Entropy Regularization, Automatic Model Selection, and Unsupervised Image Segmentation.	PAKDD	2007	DBLP DOI BibTeX RDF
33	Peter T. Hraber, Bette T. Korber, Steven Wolinsky, Henry A. Erlich, Elizabeth A. Trachtenberg, Thomas B. Kepler	HLA and HIV Infection Progression: Application of the Minimum Description Length Principle to Statistical Genetics.	ISBMDA	2006	DBLP DOI BibTeX RDF
33	Anders Ericsson, Johan Karlsson 0002	Aligning Shapes by Minimising the Description Length.	SCIA	2005	DBLP DOI BibTeX RDF
33	Tobias Heimann, Ivo Wolf, Tomos G. Williams, Hans-Peter Meinzer	3D Active Shape Models Using Gradient Descent Optimization of Description Length.	IPMI	2005	DBLP DOI BibTeX RDF
33	Frédéric Galland, Nicolas Bertaux, Philippe Réfrégier	Minimum description length synthetic aperture radar image segmentation.	IEEE Trans. Image Process.	2003	DBLP DOI BibTeX RDF
33	Anders Ericsson, Kalle Åström	An affine invariant deformable shape representation for general curves.	ICCV	2003	DBLP DOI BibTeX RDF
33	Sunho Chang, Lee-Sup Kim	Design trade-off in merged DRAM logic for video signal processing.	ISCAS (5)	2001	DBLP DOI BibTeX RDF
33	Murlikrishna Viswanathan, Chris S. Wallace, David L. Dowe, Kevin B. Korb	Finding Cutpoints in Noisy Binary Sequences - A Revised Empirical Evaluation.	Australian Joint Conference on Artificial Intelligence	1999	DBLP DOI BibTeX RDF
33	Ten-Ho Lin, Von-Wun Soo	Pruning Fuzzy ARTMAP using the Minimum Description Length Principle in Learning from Clinical Databases.	ICTAI	1997	DBLP DOI BibTeX RDF	learning from database), minimum description length, fuzzy ARTMAP
33	Vicente Ruiz de Angulo, Carme Torras	Minimally Disturbing Learning.	IWANN	1991	DBLP DOI BibTeX RDF
32	Robert Gwadera, Aristides Gionis, Heikki Mannila	Optimal segmentation using tree models.	Knowl. Inf. Syst.	2008	DBLP DOI BibTeX RDF	Sequence segmentation, DNA segmentation, Sequence data mining, MDL
32	Bastian Leibe, Ales Leonardis, Bernt Schiele	Robust Object Detection with Interleaved Categorization and Segmentation.	Int. J. Comput. Vis.	2008	DBLP DOI BibTeX RDF	Hypothesis selection, Clustering, Segmentation, Object detection, Hough transform, MDL, Object categorization
32	Hai Huong Dam, Hussein A. Abbass, Chris Lokan	DXCS: an XCS system for distributed data mining.	GECCO	2005	DBLP DOI BibTeX RDF	learning classifier system, XCS, MDL, distributed data mining
32	Arindam Banerjee 0001, John Langford 0001	An objective evaluation criterion for clustering.	KDD	2004	DBLP DOI BibTeX RDF	PAC bounds, clustering, evaluation, MDL
32	Peter J. Tan, David L. Dowe	MML Inference of Decision Graphs with Multi-way Joins.	Australian Joint Conference on Artificial Intelligence	2002	DBLP DOI BibTeX RDF	Machine learning, decision trees, supervised learning, MDL, MML, decision graphs, probabilistic prediction, minimum message length
31	Guanhua Chen, Xiuli Ma, Dongqing Yang, Shiwei Tang, Meng Shuai	A Bipartite Graph Framework for Summarizing High-Dimensional Binary, Categorical and Numeric Data.	SSDBM	2009	DBLP DOI BibTeX RDF	the MDL Principle, Bipartite Graph, High-Dimensional Data, Data Summarization
31	Hiroshi Tenmoto, Mineichi Kudo	Soft Feature Selection by Using a Histogram-Based Classifier.	SSPR/SPR	2008	DBLP DOI BibTeX RDF	Histogram classifier, MDL criterion, Soft feature selection
31	Jae-Gil Lee 0001, Jiawei Han 0001, Kyu-Young Whang	Trajectory clustering: a partition-and-group framework.	SIGMOD Conference	2007	DBLP DOI BibTeX RDF	partition-and-group framework, density-based clustering, MDL principle, trajectory clustering
31	Chien-Yuan Huang, Octavia I. Camps, Tapas Kanungo	Object Recognition Using Appearance-Based Parts and Relations.	CVPR	1997	DBLP DOI BibTeX RDF	MDL segmentation, appearance-based representation, object recognition, Object representation
31	Rajesh P. N. Rao	Dynamic Appearance-Based Recognition.	CVPR	1997	DBLP DOI BibTeX RDF	Learning, Principal Component Analysis (PCA), Object Recognition, Prediction, Kalman Filters, Hierarchies, Minimum Description Length (MDL), Expectation-Maximization Algorithm
29	Jure Ferlez, Christos Faloutsos, Jure Leskovec, Dunja Mladenic, Marko Grobelnik	Monitoring Network Evolution using MDL.	ICDE	2008	DBLP DOI BibTeX RDF
29	Aaron D. Ward, Ghassan Hamarneh	Statistical Shape Modeling Using MDL Incorporating Shape, Appearance, and Expert Knowledge.	MICCAI (1)	2007	DBLP DOI BibTeX RDF
29	Jan Poland, Marcus Hutter	MDL convergence speed for Bernoulli sequences.	Stat. Comput.	2006	DBLP DOI BibTeX RDF
29	Imre Csiszár, Zsolt Talata	Context tree estimation for not necessarily finite memory processes, via BIC and MDL.	IEEE Trans. Inf. Theory	2006	DBLP DOI BibTeX RDF
29	Pieter W. Adriaans, Ceriel J. H. Jacobs	Using MDL for Grammar Induction.	ICGI	2006	DBLP DOI BibTeX RDF
29	Mikko Koivisto	Parent Assignment Is Hard for the MDL, AIC, and NML Costs.	COLT	2006	DBLP DOI BibTeX RDF
29	Spiros Papadimitriou, Aristides Gionis, Panayiotis Tsaparas, Risto A. Väisänen, Heikki Mannila, Christos Faloutsos	Parameter-Free Spatial Data Mining Using MDL.	ICDM	2005	DBLP DOI BibTeX RDF
29	Qiming Luo, Taghi M. Khoshgoftaar, Edgar An	Hierarchical indexing of ocean survey video by mean shift clustering and MDL principle.	IRI	2005	DBLP DOI BibTeX RDF
29	Jan Poland, Marcus Hutter	On the Convergence Speed of MDL Predictions for Bernoulli Sequences.	ALT	2004	DBLP DOI BibTeX RDF
29	Tong Zhang 0001	On the Convergence of MDL Density Estimation.	COLT	2004	DBLP DOI BibTeX RDF
29	Yoshiki Tanaka, Kuniaki Uehara	Discover Motifs in Multi-dimensional Time-Series Using the Principal Component Analysis and the MDL Principle.	MLDM	2003	DBLP DOI BibTeX RDF
29	Wojciech Szpankowski, Wenhui Ren, Lukasz Szpankowski	An Optimal DNA Segmentation Based on the MDL Principle.	CSB	2003	DBLP DOI BibTeX RDF
29	Davide Anguita, Matteo Gagliolo	MDL Based Model Selection for Relevance Vector Regression.	ICANN	2002	DBLP DOI BibTeX RDF
29	Alexander Selb, Horst Bischof, Ales Leonardis	Fuzzy C-Means in an MDL-Framework.	ICPR	2000	DBLP DOI BibTeX RDF
29	Tat-Jen Cham, Roberto Cipolla	Automated B-Spline Curve Representation Incorporating MDL and Error-Minimizing Control Point Insertion Strategies.	IEEE Trans. Pattern Anal. Mach. Intell.	1999	DBLP DOI BibTeX RDF	B-spline fitting, collapse mechanism, active contour, curve fitting, minimum description length
29	Shun-ichi Amari, Noboru Murata	Statistical Analysis of Regularization Constant - From Bayes, MDL and NIC Points of View.	IWANN	1997	DBLP DOI BibTeX RDF
29	Song Chun Zhu, Alan L. Yuille	Region Competition: Unifying Snakes, Region Growing, and Bayes/MDL for Multiband Image Segmentation.	IEEE Trans. Pattern Anal. Mach. Intell.	1996	DBLP DOI BibTeX RDF	Bayes statistics, Image segmentation, minimum description length, snakes, region growing, color model, uncertainty principle
29	Heyun Zheng, Steven D. Blostein	Motion-based object segmentation and estimation using the MDL principle.	IEEE Trans. Image Process.	1995	DBLP DOI BibTeX RDF
29	Serge Ayer, Harpreet S. Sawhney	Layered Representation of Motion Video Using Robust Maximum-Likelihood Estimation of Mixture Models and MDL Encoding.	ICCV	1995	DBLP DOI BibTeX RDF	motion video, robust maximum-likelihood estimation, spatial support, motion video sequences, dynamic image understanding, motion estimation, image sequences, encoding, encoding, mixture models, maximum likelihood estimation, maximum likelihood estimation, minimum description length, layered representation
29	Bernhard Pfahringer	Controlling Constructive Induction in CIPF: An MDL Approach.	ECML	1994	DBLP DOI BibTeX RDF
22	Ryohei Fujimaki, Satoshi Morinaga, Michinari Momma, Kenji Aoki 0001, Takayuki Nakata	Linear Time Model Selection for Mixture of Heterogeneous Components.	ACML	2009	DBLP DOI BibTeX RDF	heterogeneous mixture model, model selection, minimum description length
22	Ismail Babaoglu, Oguz Findik, Erkan Ülker	Effects of discretization on determination of coronary artery disease using support vector machine.	ICIS	2009	DBLP DOI BibTeX RDF	exercise stress test, support vector machines, discretization, coronary artery disease
22	Raj Rao Nadakuditi, Alan Edelman	Sample Eigenvalue Based Detection of High-Dimensional Signals in White Noise Using Relatively Few Samples.	IEEE Trans. Signal Process.	2008	DBLP DOI BibTeX RDF
22	Yifeng Jiang 0001, Jun Xie 0001, Hung-Tat Tsui	Shape Registration by Optimally Coding Shapes.	IEEE Trans. Inf. Technol. Biomed.	2008	DBLP DOI BibTeX RDF