Search results for "schemas"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
5	Victor M. Markowitz, Johann A. Makowsky	Identifying Extended Entity-Relationship Object Structures in Relational Schemas.	IEEE Trans. Software Eng.	1990	DBLP DOI BibTeX RDF	extended entity-relationship object structures, relation-schemes, key dependencies, key-based inclusion dependencies, referential integrity constraints, EER schema, EER-convertible, EER object structures, normalization procedure, relational database schemas, object-oriented database schemas, semantics, object-oriented programming, relational databases, database management systems, database theory, normal form, relational schemas
4	Rebeca Schroeder, Ronaldo dos Santos Mello	Designing XML documents from conceptual schemas and workload information.	Multimedia Tools Appl.	2009	DBLP DOI BibTeX RDF	XML schemas, Workload, Conceptual schemas, Query performance
4	N. Mfourga	Extracting Entity-Relationship Schemas from Relational Databases: A Form-Driven Approach. (PDF / PS)	WCRE	1997	DBLP DOI BibTeX RDF	entity-relationship schema extraction, operational relational database, form model schemas, form-driven approach, data constraints, form structures, form instances, inference process, supplemented low-level schemas, conceptual schema reconstruction, entity-relationship modelling, structural information, human activity, database semantics
3	Antonio Gavilanes, Pedro J. Martín, Roberto Torres	A Tool for Automatic Code Generation from Schemas.	ICCS	2009	DBLP DOI BibTeX RDF	schemas, Automatic code generation, recurrence relations
3	Stefan Aulbach, Dean Jacobs, Alfons Kemper, Michael Seibold	A comparison of flexible schemas for software as a service.	SIGMOD Conference	2009	DBLP DOI BibTeX RDF	flexible schemas, evolution, extensibility, software as a service, multi-tenancy
3	Lisa Walton, Michael F. Worboys	An Algebraic Approach to Image Schemas for Geographic Space.	COSIT	2009	DBLP DOI BibTeX RDF	Bigraph Models, Spatial Relations, Image Schemas, Built Environments
3	Yannis Theoharis, Yannis Tzitzikas, Dimitris Kotzinos, Vassilis Christophides	On Graph Features of Semantic Web Schemas.	IEEE Trans. Knowl. Data Eng.	2008	DBLP DOI BibTeX RDF	conceptual schemas morphology, Semantic Web, power-laws
3	Michel de Rougemont, Adrien Vieilleribière	Approximate schemas, source-consistency and query answering.	J. Intell. Inf. Syst.	2008	DBLP DOI BibTeX RDF	Approximate schemas, Source-consistency, Complexity, Distances, Query answering
3	Jörn Hurtienne, Johann Habakuk Israel, Katharina Weber	Cooking up real world business applications combining physicality, digitality, and image schemas.	Tangible and Embedded Interaction	2008	DBLP DOI BibTeX RDF	PIBA-DIBA lists, function allocation, graphical user interfaces, user centered design, tangible user interfaces, digitality, physicality, ERP system, image schemas
3	Rebeca Schroeder, Ronaldo dos Santos Mello	Improving query performance on XML documents: a workload-driven design approach.	ACM Symposium on Document Engineering	2008	DBLP DOI BibTeX RDF	XML schemas, conceptual schemas, query performance
3	Jörn Hurtienne, Johann Habakuk Israel	Image schemas and their metaphorical extensions: intuitive patterns for tangible interaction.	Tangible and Embedded Interaction	2007	DBLP DOI BibTeX RDF	tangible user interfaces, metaphor, embodiment, intuitivity, image schemas
3	Hongding Wang, Shiwei Tang, Yunhai Tong, Dongqing Yang	An approach for identifying attribute correspondences in multilingual schemas.	SAC	2006	DBLP DOI BibTeX RDF	attribute correspondence identification, multilingual schemas, database integration
3	Gregory Hale	Insights into the Design of Computer Entertainment from Schemas in Film.	TIDSE	2006	DBLP DOI BibTeX RDF	entertainment psychology, user reactions, Schemas
3	Gabriela Arévalo, Stéphane Ducasse, Oscar Nierstrasz	Discovering Unanticipated Dependency Schemas in Class Hierarchies.	CSMR	2005	DBLP DOI BibTeX RDF	Schemas, Concept Analysis, Class Hierarchies
3	Owen Conlan, Cord Hockemeyer, Paul Lefrere, Vincent P. Wade, Dietrich Albert	Extending eductional metadata schemas to describe adaptive learning resources.	Hypertext	2001	DBLP DOI BibTeX RDF	adaptive hypermedia services, metadata schemas, adaptivity
3	Christos T. Karamanolis, Dimitra Giannakopoulou, Jeff Magee, Stuart M. Wheater	Model Checking of Workflow Schemas. (PDF / PS)	EDOC	2000	DBLP DOI BibTeX RDF	workflow schemas, error-prone process, primitive syntactic verification, automata-based method, compositional reachability analysis, model checking, formal methods, formal verification, robustness, correctness, reachability analysis, liveness properties
3	Carlo Batini, Giuseppe Di Battista, Giuseppe Santucci	Structuring Primitives for a Dictionary of Entity Relationship Data Schemas.	IEEE Trans. Software Eng.	1993	DBLP DOI BibTeX RDF	structuring primitives, data descriptions, entity relationship data schemas, information system, relational databases, entity-relationship modelling
3	Nathan Goodman, Oded Shmueli	Tree Queries: A Simple Class of Relational Queries.	ACM Trans. Database Syst.	1982	DBLP DOI BibTeX RDF	acyclic schemes, cyclic schemas, tree schemas, join, semijoin
2	Federico Cavalieri	EXup: an engine for the evolution of XML schemas and associated documents.	EDBT/ICDT Workshops	2010	DBLP DOI BibTeX RDF
2	James F. Terwilliger, Philip A. Bernstein, Adi Unnithan	Worry-free database upgrades: automated model-driven evolution of schemas and complex mappings.	SIGMOD Conference	2010	DBLP DOI BibTeX RDF	o-r mapping, schema evolution, model management
2	Min Kyung Lee, Sara B. Kiesler, Jodi Forlizzi	Receptionist or information kiosk: how do people talk with a robot?	CSCW	2010	DBLP DOI BibTeX RDF	design, agent, robot, human-robot interaction, cooperation, scripts, dialogue, schemas, social robots, speech interface, conversational interface
2	Wim Martens, Matthias Niewerth, Thomas Schwentick	Schema design for XML repositories: complexity and tractability.	PODS	2010	DBLP DOI BibTeX RDF	language primality, complexity, xml, xml schemas
2	Alberto H. F. Laender, Mirella M. Moro, Cristiano Nascimento, Patrícia Martins	An X-ray on web-available XML schemas.	SIGMOD Record	2009	DBLP DOI BibTeX RDF
2		Conceptual Schemas.	Encyclopedia of Database Systems	2009	DBLP DOI BibTeX RDF
2		Query Execution in Star/ Snowflake Schemas.	Encyclopedia of Database Systems	2009	DBLP DOI BibTeX RDF
2		XML Schemas.	Encyclopedia of Database Systems	2009	DBLP DOI BibTeX RDF
2	Sana Sellami, Aïcha-Nabila Benharkat, Youssef Amghar	Pre-matching: Large XML Schemas Decomposition Approach.	OTM Workshops	2009	DBLP DOI BibTeX RDF
2	Karima Toumani, Hélène Jaudoin, Michel Schneider	Automatic Generation of P2P Mappings between Sources Schemas.	ISMIS	2009	DBLP DOI BibTeX RDF	rewriting queries, description logics, hypergraphs, Schema mappings
2	Peep Küngas, Marlon Dumas	Cost-Effective Semantic Annotation of XML Schemas and Web Service Interfaces.	IEEE SCC	2009	DBLP DOI BibTeX RDF
2	Verena Kantere, Dimos Bousounis, Timos K. Sellis	A tool for mapping discovery over revealing schemas.	EDBT	2009	DBLP DOI BibTeX RDF
2	Juan M. Vara, Belén Vela, Verónica Andrea Bollati, Esperanza Marcos	Supporting Model-Driven Development of Object-Relational Database Schemas: A Case Study.	ICMT	2009	DBLP DOI BibTeX RDF	Code Generation, Model Transformations, Model-Driven Engineering, Object-Relational Databases
2	Helen X. Xiang	Supporting Complex Scientific Database Schemas in a Grid Middleware.	AINA	2009	DBLP DOI BibTeX RDF	scientific datasets, Complex Database Schemas, Sloan Digital Sky Survey (SDSS), OGSA-DQP, distributed databases, Grid middleware, Scientific Database, OGSA-DAI
2	Ahmed Radwan, Lucian Popa, Ioana Roxana Stanoi, Akmal A. Younis	Top-k generation of integrated schemas based on directed and weighted correspondences.	SIGMOD Conference	2009	DBLP DOI BibTeX RDF	interactive schema generation, top-k generation, data integration, schema mapping, schema integration, model management, data merging
2	Hyun Jin Moon, Carlo Curino, MyungWon Ham, Carlo Zaniolo	PRIMA: archiving and querying historical data with evolving schemas.	SIGMOD Conference	2009	DBLP DOI BibTeX RDF	transaction-time databases, temporal databases, schema evolution
2	Yaser Karasneh, Hamidah Ibrahim, Mohamed Othman, Razali Yaakob	Integrating schemas of heterogeneous relational databases through schema matching.	iiWAS	2009	DBLP DOI BibTeX RDF	biomedical database, heterogeneous, schema matching, database integration
2	Pierre Genevès, Nabil Layaïda, Vincent Quint	Identifying query incompatibilities with evolving XML schemas.	ICFP	2009	DBLP DOI BibTeX RDF	XML, analysis, evolution, queries, schema, compatibility
2	Antonio Villegas, Antoni Olivé	On Computing the Importance of Entity Types in Large Conceptual Schemas.	ER Workshops	2009	DBLP DOI BibTeX RDF
2	Andrei Olaru, Claudia Marinica, Fabrice Guillet	Local mining of Association Rules with Rule Schemas.	CIDM	2009	DBLP DOI BibTeX RDF
2	Ya-Hui Chang, Chia-Zhen Lee	Representing Multiple Mappings between XML and Relational Schemas for Bi-directional Query Translation.	APWeb/WAIM	2009	DBLP DOI BibTeX RDF
2	Kamran Munir, Mohammed Odeh, Richard McClatchey	Managing the mappings between domain ontologies and database schemas when formulating relational queries.	IDEAS	2009	DBLP DOI BibTeX RDF	domain metadata, relational databases, query formulation, domain ontology
2	Yaser Karasneh, Hamidah Ibrahim, Mohamed Othman, Razali Yaakob	A model for matching and integrating heterogeneous relational biomedical databases schemas.	IDEAS	2009	DBLP DOI BibTeX RDF	biomedical database, heterogeneous, schema matching, database integration
2	Vern R. Walker	Plausibility schemas: templates for legal factfinding.	ICAIL	2009	DBLP DOI BibTeX RDF	evidence assessment, default logic, non-monotonic logic
2	Saskia Bakker, Alissa Nicole Antle, Elise van den Hoven	Identifying embodied metaphors in children's sound-action mappings.	IDC	2009	DBLP DOI BibTeX RDF	embodied metaphor, embodied schemas, sound enactment, learning, children, tangible user interfaces, music, tangible interaction, design research, image schemas, auditory interaction
2	Katie Wilkie, Simon Holland, Paul Mulholland	Evaluating musical software using conceptual metaphors.	BCS HCI	2009	DBLP DOI BibTeX RDF	Harmony Space, conceptual metaphors, tonal harmony, user interface design, embodied cognition, image schemas
2	Shun'ichi Amano, Leonid Libkin, Filip Murlak	XML schema mappings.	PODS	2009	DBLP DOI BibTeX RDF	complexity, composition, mappings, consistency, xml, schemas
2	Jörn Hurtienne, Patrick Langdon, P. John Clarkson	Towards an Account of Sensorimotor Knowledge in Inclusive Product Design.	HCI	2009	DBLP DOI BibTeX RDF	Inclusive Design, Prior Knowledge, Embodied Cognition, Cognitive Abilities, Image Schemas
2	Manuel A. Serrano, Coral Calero, Houari A. Sahraoui, Mario Piattini	Empirical studies to assess the understandability of data warehouse schemas using structural metrics.	Software Quality Journal	2008	DBLP DOI BibTeX RDF	Metrics, Empirical studies, Data warehouse, Quality
2	María Arinbjarnar, Daniel Kudenko	Schemas in Directed Emergent Drama.	ICIDS	2008	DBLP DOI BibTeX RDF
2	Anna Queralt, Ernest Teniente	Decidable Reasoning in UML Schemas with Constraints.	CAiSE	2008	DBLP DOI BibTeX RDF	Conceptual modeling, Reasoning, Decidability
2	Dolors Costal, Cristina Gómez, Anna Queralt, Ernest Teniente	Drawing Preconditions of Operation Contracts from Conceptual Schemas.	CAiSE	2008	DBLP DOI BibTeX RDF	operation contracts, conceptual modelling, integrity constraints
2	Robert McCann, Warren Shen, AnHai Doan	Matching Schemas in Online Communities: A Web 2.0 Approach.	ICDE	2008	DBLP DOI BibTeX RDF
2	Hong-Quang Nguyen, J. Wenny Rahayu, Kinh Nguyen, David Taniar	XMiner: Mining XML Mediated Schemas.	Web Intelligence	2008	DBLP DOI BibTeX RDF
2	Laura Chiticariu, Phokion G. Kolaitis, Lucian Popa	Interactive generation of integrated schemas.	SIGMOD Conference	2008	DBLP DOI BibTeX RDF	concept graph, interactive generation, data integration, schema mapping, schema integration, model management
2	Carles Farré, Guillem Rull, Ernest Teniente, Toni Urpí	SVTe: a tool to validate database schemas giving explanations.	DBTest	2008	DBLP DOI BibTeX RDF	validation, explanation, database schema
2	Geert Jan Bex, Frank Neven, Stijn Vansummeren	SchemaScope: a system for inferring and cleaning XML schemas.	SIGMOD Conference	2008	DBLP DOI BibTeX RDF	xml, regular expressions, schema inference
2	Il-Yeol Song, Ritu Khare, Yuan An, Suan Lee, Sang-Pil Kim, Jinho Kim, Yang-Sae Moon	SAMSTAR: An Automatic Tool for Generating Star Schemas from an Entity-Relationship Diagram.	ER	2008	DBLP DOI BibTeX RDF
2	José Luis Sierra, Alfredo Fernández-Valmayor	Tagging Learning Objects with Evolving Metadata Schemas.	ICALT	2008	DBLP DOI BibTeX RDF
2	Jacky Akoka, Isabelle Comyn-Wattiau, Samira Si-Said Cherfi	Quality of conceptual schemas an experimental comparison.	RCIS	2008	DBLP DOI BibTeX RDF
2	Arie Croitoru	Deriving and Mining Spatiotemporal Event Schemas in In-Situ Sensor Data.	ICCSA	2008	DBLP DOI BibTeX RDF
2	Federico Cavalieri, Giovanna Guerrini, Marco Mesiti	Navigational Path Expressions on XML Schemas.	DEXA	2008	DBLP DOI BibTeX RDF
2	Kai-yuh Hsiao, Soroush Vosoughi, Stefanie Tellex, Rony Kubat, Deb Roy	Object schemas for responsive robotic language use.	HRI	2008	DBLP DOI BibTeX RDF	behavior-based, language grounding, object schema, robot, affordances
2	Wenwei Xue, Hung Keng Pung, Paulito P. Palmes, Tao Gu	Schema matching for context-aware computing.	UbiComp	2008	DBLP DOI BibTeX RDF	context attributes, context schemas, ubiquitous computing, middleware, context awareness, schema matching
2	Rebeca Schroeder, Ronaldo dos Santos Mello	Conversion of generalization hierarchies and union types from extended entity-relationship model to an XML logical model.	SAC	2008	DBLP DOI BibTeX RDF	EER, generalization/specialization, XML schemas, union types
2	Alfredo Weitzenfeld	A Prey Catching and Predator Avoidance Neural-Schema Architecture for Single and Multiple Robots.	Journal of Intelligent and Robotic Systems	2008	DBLP DOI BibTeX RDF	Biorobotics, Biologically inspired robotics, Prey catching, Predator avoidance, Neural networks, Behaviors, Schemas, Swarms
2	Pasquale De Meo, Giovanni Quattrone, Giorgio Terracina, Domenico Ursino	Semantics-Guided Clustering of Heterogeneous XML Schemas.	J. Data Semantics	2007	DBLP DOI BibTeX RDF
2	Yalin Yarimagan, Asuman Dogac	Semantics based customization of UBL document schemas.	Distributed and Parallel Databases	2007	DBLP DOI BibTeX RDF	Universal Business Language (UBL), eBusiness interoperability, Business context, Context ontology, Semantics
2	Christoph Quix, David Kensche, Xiang Li 0002	Matching of Ontologies with XML Schemas Using a Generic Metamodel.	OTM Conferences	2007	DBLP DOI BibTeX RDF
2	Onni Valkeapää, Olli Alm, Eero Hyvönen	Efficient Content Creation on the Semantic Web Using Metadata Schemas with Domain Ontology Services (System Description).	ESWC	2007	DBLP DOI BibTeX RDF
2	Yannis Theoharis, George Georgakopoulos, Vassilis Christophides	On the Synthetic Generation of Semantic Web Schemas.	SWDB-ODBIS	2007	DBLP DOI BibTeX RDF
2	Yuan An, Thodoros Topaloglou	Maintaining Semantic Mappings between Database Schemas and Ontologies.	SWDB-ODBIS	2007	DBLP DOI BibTeX RDF
2	Il-Yeol Song, Ritu Khare, Bing Dai	SAMSTAR: a semi-automated lexical method for generating star schemas from an entity-relationship diagram.	DOLAP	2007	DBLP DOI BibTeX RDF	connection topology value, dimensional design patterns, WordNet, data warehouse design, star schema, ER diagram
2	Cristina Marinescu	Identification of Relational Discrepancies between Database Schemas and Source-Code in Enterprise Applications.	SYNASC	2007	DBLP DOI BibTeX RDF
2	Huicheng Zhou, Wei Li, Chi Zhang	Optimizing Schemas of Flood Control and Disaster Reduction Engineering Based on Variable Fuzzy Sets Theory.	FSKD	2007	DBLP DOI BibTeX RDF
2	Eladio Domínguez, Jorge Lloret, Beatriz Pérez, Áurea Rodríguez, Angel Luis Rubio, María Antonia Zapata	A Survey of UML Models to XML Schemas Transformations.	WISE	2007	DBLP DOI BibTeX RDF	Model Transformation, XML Schema, UML model
2	Xuan Zhou, Julien Gaugaz, Wolf-Tilo Balke, Wolfgang Nejdl	Query relaxation using malleable schemas.	SIGMOD Conference	2007	DBLP DOI BibTeX RDF	malleable schema, query relaxation
2	Catharine M. Wyss, Felix I. Wyss	Extending relational query optimization to dynamic schemas for information integration in multidatabases.	SIGMOD Conference	2007	DBLP DOI BibTeX RDF	FIRA, FISQL, dynamic schema query processing, federated data model, federated interoperable RA, federated interoperable SQL, metadata query processing, data integration, federated databases, metadata integration
2	Eladio Domínguez, Jorge Lloret, Beatriz Pérez, Áurea Rodríguez, Angel Luis Rubio, María Antonia Zapata	Model-Driven Development Based Transformation of Stereotyped Class Diagrams to XML Schemas in a Healthcare Context.	ER Workshops	2007	DBLP DOI BibTeX RDF	XML Schema, Clinical Guideline, UML Class Diagram
2	Mustafa Atay, Artem Chebotko, Shiyong Lu, Farshad Fotouhi	XML-to-SQL Query Mapping in the Presence of Multi-valued Schema Mappings and Recursive XML Schemas.	DEXA	2007	DBLP DOI BibTeX RDF
2	Wei Hu, Yuzhong Qu	Discovering Simple Mappings Between Relational Database Schemas and Ontologies.	ISWC/ASWC	2007	DBLP DOI BibTeX RDF
2	Gjergji Kasneci, Thomas Schwentick	The complexity of reasoning about pattern-based XML schemas.	PODS	2007	DBLP DOI BibTeX RDF	XML schemas, integrity constraints
2	Madhusudhan Govindaraju	XML Schemas Based Flexible Distributed Code Generation Framework.	ICWS	2007	DBLP DOI BibTeX RDF	Distributed Systems, Code Generation, XML Schemas
2	Miguel Torres, Serguei Levachkine	Obtaining Semantic Descriptions Based on Conceptual Schemas Embedded into a Geographic Context.	IF&GIS	2007	DBLP DOI BibTeX RDF
2	Massimo Franceschet, Angelo Montanari, Donatella Gubiani	Modeling and Validating Spatio-Temporal Conceptual Schemas in XML Schema.	DEXA Workshops	2007	DBLP DOI BibTeX RDF
2	Marco A. Casanova, Karin Koogan Breitman, Daniela F. Brauner, André L. A. Marins	Database Conceptual Schema Matching.	IEEE Computer	2007	DBLP DOI BibTeX RDF	database conceptual schemas, schema matching, software technologies
2	Yoonkyong Lee, Mayssam Sayyadian, AnHai Doan, Arnon Rosenthal	eTuner: tuning schema matching software using synthetic scenarios.	VLDB J.	2007	DBLP DOI BibTeX RDF	Synthetic schemas, Compositional approach, Machine learning, Schema matching, Tuning
2	Silvia Mara Abrahão, Geert Poels, Oscar Pastor	A functional size measurement method for object-oriented conceptual schemas: design and evaluation issues.	Software and System Modeling	2006	DBLP DOI BibTeX RDF	Measure validation, Measurement verification, Object orientation, Conceptual modeling, Functional size measurement
2	Jordi Conesa, Antoni Olivé	A Method for Pruning Ontologies in the Development of Conceptual Schemas of Information Systems.	J. Data Semantics	2006	DBLP DOI BibTeX RDF
2	Jianghua Liang, Vijay K. Vaishnavi, Art Vandenberg	Clustering of LDAP directory schemas to facilitate information resources interoperability across organizations.	IEEE Transactions on Systems, Man, and Cybernetics, Part A	2006	DBLP DOI BibTeX RDF
2	Elisabetta De Maria, Angelo Montanari, Marco Zantoni	An automaton-based approach to the verification of timed workflow schemas.	TIME	2006	DBLP DOI BibTeX RDF
2	Esteban Zimányi, Mohammed Minout	Implementing Conceptual Spatio-temporal Schemas in Object-Relational DBMSs.	OTM Workshops	2006	DBLP DOI BibTeX RDF
2	Christoph Quix, Lemonia Ragia, Linlin Cai, Tian Gan	Matching Schemas for Geographical Information Systems Using Semantic Information.	OTM Workshops	2006	DBLP DOI BibTeX RDF
2	John G. Hosking, Nodira Khoussainova, Gillian Dobbie	A tool for visualizing schemas for semistructured data.	SOFTVIS	2006	DBLP DOI BibTeX RDF
2	Nuwee Wiwatwattana, H. V. Jagadish, Laks V. S. Lakshmanan, Divesh Srivastava	Making Designer Schemas with Colors.	ICDE	2006	DBLP DOI BibTeX RDF
2	Paolo Bouquet, Luciano Serafini, Stefano Zanobini, Simone Sceffer	Bootstrapping semantics on the web: meaning elicitation from schemas.	WWW	2006	DBLP DOI BibTeX RDF	meaning elicitation, semantic web, schema matching
2	Andreas Kupfer, Silke Eckstein, Karl Neumann, Brigitte Mathiak	A Coevolution Approach for Database Schemas and Related Ontologies.	CBMS	2006	DBLP DOI BibTeX RDF
2	Amitabha Mukerjee, Mausoom Sarkar	Grounded Perceptual Schemas: Developmental Acquisition of Spatial Concepts.	Spatial Cognition	2006	DBLP DOI BibTeX RDF
2	Yu-Han Chang, Paul R. Cohen, Clayton T. Morrison, Robert St. Amant, Carole R. Beal	Piagetian Adaptation Meets Image Schemas: The Jean System.	SAB	2006	DBLP DOI BibTeX RDF
2	Gang Li, Yongqiang Li, Linyan Sun, Ping Ji	Multi-agent Coordination Schemas in Decentralized Production Systems.	CIS	2006	DBLP DOI BibTeX RDF
2	Jean-Marie Favre, Dragan Gasevic, Ralf Lämmel, Andreas Winter	3rd International Workshop on Metamodels, Schemas, Grammars and Ontologies.	MoDELS Workshops	2006	DBLP DOI BibTeX RDF
2	Teng Lv, Ping Yan	Mapping Relational Schemas to XML DTDs with Constraints.	IMSCCS	2006	DBLP DOI BibTeX RDF