Cloud Data Management
Cloud Computinghas become a very attractive paradigm for outsourcing entire applications. As data management is an integral part of the application landscape, data management in the Cloud is increasingly gaining attention. Work at the databases and information systems group addresses important data management issues in Cloud environments. In particular, this includes:
- Flexible, policy-based modular data management in the Cloud (PolarDBMS): In the previous years, Cloud computing has attracted a large variety of applications which are completely deployed on resources of Cloud providers. As data management is an essential part of these applications, Cloud providers have to deal with many different requirements for data management, depending on the characteristics and guarantees these applications are supposed to have. The objective of a Cloud provider is to support these diverse requirements in a cost-effective way with a basic set of customizable modules and protocols that can be (dynamically) combined. Thus, for the application providers, it is essential that the needs of their applications are provided in a cost-optimized manner. In our work, we are developing PolarDBMS, a flexible and dynamically adaptable system for managing data in the Cloud. PolarDBMS derives policies from application and service objectives. Based on these policies, it automatically deploys the most efficient and cost-optimized set of modules and protocols and monitor their compliance. If necessary, the PolarDBMS concept allows to dynamically exchange modules and/or their customization.
- Cost-based replicated data management in the Cloud: Distributed and replicated data management in the Cloud is governed by the CAP theorem. As a consequence of this theorem, many Cloud providers sacrifice data consistency for a high degree of availability. However, with the pay-as-you-go cost model of the Cloud where the use of each resource is charged at a very fine-grained level, the costs of an application are introduced as additional parameter for optimization. This can include the infrastructure costs (i.e., the resources needed for guaranteeing a certain degree of data consistency), but also inconsistency costs (i.e., costs that incur when a relaxed level of consistency is provided). In this work, we re-consider existing protocols for distributed data management and develop new protocols for cost-aware, dynamic and adaptable replicated data management in a Cloud environment.
- Data Archiving in the Cloud (Archiving-as-a-Service, AaaS): With the advent of data Clouds that come with nearly unlimited storage capacity combined with low storage costs, the well-established update-in-place paradigm for data management is more and more replaced by a multi-version approach. Especially in a Cloud environment with several geographically distributed data centers that act as replica sites, this allows to keep old versions of data and thus to provide a rich set of read operations with different semantics (e.g., read most recent version, read version not older than, read data as of, etc.). A combination of multi-version data management, replication, and partitioning allows to redundantly store several or even all versions of data items without significantly impacting each single site. However, in order to avoid that single sites in such partially replicated data Clouds are overloaded when processing archive queries that access old versions, query optimization has to jointly consider version selection and load balancing (site selection). In our work, we address novel cost-aware index approaches (called ARCTIC) for version and site selection for a broad range of query types including both fresh data and archive data.
Staff
- Heiko Schuldt
- Marco Vogt
- David Lengweiler
- Alexander Stiemer
- Martin Vahlensieck
- Yiming Wu
- Tobias Hafner
- Tobias Martin Weber
Research Projects
- ClouDMan: Cost-based Data Management in Cloud Environments
- D4Science: DIstributed colLaboratories Infrastructure on Grid ENabled Technology 4 Science
- DILIGENT: a DIgital Library Infrastructure on Grid ENabled Technology
- GriDMan: Data Management for Scientific Applications in a Grid Environment
- IMOTION - Intelligent Multi-Modal Augmented Video Motion Retrieval System
- Polypheny-DB: Cost- and Workload-aware Adaptive Data Management
- Polypheny-DDI: A Flexible Polystore-based Distributed Data Infrastructure
- SOSOA: Self-organizing Service-oriented Architectures
- SwissRenov
Thesis Projects
- A Client for Dynamic Replication and Partitioning of Big Data
- A stored procedure based mechanism for modifying views in Polypheny-DB
- A web-based user interface for Cottontail DB
- An adaptive approach for learning operator costs in Polypheny-DB
- Approaches Towards the Automated Optimization and Validation of a PolyDBMS
- Bachelor/Master Theses in Distributed Data Management
- Beowulf: SLA-based Integration of Data Replication and Data Partitioning
- Chameleon Query Interface in Polypheny-DB
- Conceptualization and prototyping of a multi-vendor, multi-format data lake for network analytics
- Cost-Based Data Replication in the Cloud
- Cost-based flexible Correctness in Data Grid and Data Cloud Infrastructures
- Data Resilience in PolyDBMS Systems
- Design and Implementation of a Web-based Tool for the Sketch-based Schema Definition for SQL and NoSQL Databases
- Development of a Web UI for Polypheny-DB
- Dynamic Freshness-Aware Replica Management and Archiving in Data Grid and Data Cloud Environments
- Dynamic Replication and Partitioning of Big Data
- Enhancing Jupyter Notebooks with Multi-Model Database Support
- Erstellung eines Generators für temporale Datenbanken
- Explore-by-Example: Interactive data exploration in Polypheny
- Freshness-aware Data Management in a Polystore System
- Graphical management of data stores in a distributed database
- Horizontal data partitioning in a polystore system
- Hybrid Data Storage and Access for Big Data Collections
- Integrating GIS Capabilities into Polypheny
- Integrating support for the document data model in a polystore system
- Intelligent routing of queries in a polystore system
- Interfacing with Multi-Model Data and Queries
- JDBC Interface for Polypheny-DB
- Konzeption und Implementierung einer Personal P2P Storage-Cloud
- Materialized Views in a Polystore Database System
- Materializing Results of Database Queries as Files
- MobiStore – Konzeption und Implementierung eines Deploymentsystems für UBStore auf Mobilgeräten
- MQTT Query Interface for Polypheny-DB
- Multi-model Polystore Systems
- Multi-Model Stream Processing Benchmark
- Multimedia retrieval support for Polypheny-DB
- OSIRIS-SR Dynamic Display Tool
- Óðinn: A Framework for Large-Scale Wordlist Analysis and Structure-Based Password Guessing
- Performance Evaluation of Replicated Data Management in the Cloud
- Persistent and performant schema management in Polypheny-DB
- Policy-based Management of Modular Cloud Storage Systems
- Polyglotte Persistenz in UBstore
- Polypheny-DB UI: An Angular-based user interface for Polystore Databases
- Polypheny-KV: A Transactional Key-Value Store for Polypheny-DB
- Polypheny-MM: Adding support for storing and retrieving multimedia collections in a polystore database
- Quorum-based Data Replication in the Cloud
- Real-Time visualization of a Cloud-based data infrastructure
- Reservation and Dynamic Exploitation of Resources in Java-Based Web Services
- Routing-Optimierung für verteilte Datenverwaltung und Prozessausführung auf Mobilgeräten mit OSIRIS-SR
- Schema Recognition and Integration in a Polystore System using Machine Learning Methods
- Self-Adaptive Polystore System
- SIMD Support for Proximity Based Queries in Cottontail DB
- Tapmaan: Temperature-aware Data Management in Polypheny-DB
- Temperature-aware Data Management in Polypheny-DB
- Temporal Analysis and Validation of Evaluations
- The Amazon Cloud Instance Management Tool
- Time-Check: Analyse der Parameter zur Evaluation verteilter Mehrversionen-Datenbanksysteme
- User Interface to Control and Visualize the Planning of Resource Allocations using Genetic Algorithms
- Using Indexes to Simplify Queries in a Polystore System
- Vector type support in a distributed database
Publications
2023
- David Lengweiler, Marco Vogt, Heiko Schuldt
MMSBench-Net: Scenario-Based Evaluation of Multi-Model Database Systems
Proceedings of the 34th GI-Workshop on Foundations of Databases (Grundlagen von Datenbanken), Calw, Germany, 2023/6
2022
- Marco Vogt
Adaptive Management of Multimodel Data and Heterogeneous Workloads
PhD Thesis, Department of Mathematics and Computer Science, University of Basel, Switzerland, 2022/9
2021
- Marco Vogt, David Lengweiler, Isabel Geissmann, Nils Hansen, Marc Hennemann, Cédric Mendelin, Sebastian Philipp, Heiko Schuldt
Polystore Systems and DBMSs: Love Marriage or Marriage of Convenience?
In Proceedings of the 2021 Workshop on “Polystore systems for heterogeneous data in multiple databases with privacy and security assurances” (Poly’21), Copenhagen, Denmark, 2021/8
2020
- Ralph Gasser, Luca Rossetto, Silvan Heller, Heiko Schuldt
Cottontail DB: An Open Source Database System for Multimedia Retrieval and Analysis
Proceedings of 28th ACM International Conference on Multimedia.(ACM MM 2020) - Open Source Competition, Seattle, WA, USA (held virtually), 2020/10 - Alexander Stiemer, Marco Vogt, Heiko Schuldt, Uta Störl
PolyMigrate: Dynamic Schema Evolution and Data Migration in a Distributed Polystore
Proceedings of the 3rd International Workshop on Polystore systems for heterogeneous data in multiple databases with privacy and security assurance (Poly’ 2020), Tokyo, Japan (held virtually), 2020/8 - Marco Vogt, Nils Hansen, Jan Schönholz, David Lengweiler, Isabel Geissmann, Sebastian Philipp, Alexander Stiemer, and Heiko Schuldt
Polypheny-DB: Towards Bridging the Gap Between Polystores and HTAP Systems
Proceedings of the 3rd International Workshop on Polystore systems for heterogeneous data in multiple databases with privacy and security assurance (Poly’ 2020), Tokyo, Japan (held virtually), 2020/8 - Marco Vogt, Alexander Stiemer, Sein Coray, Heiko Schuldt
Chronos: The Swiss Army Knife for Database Evaluations
Proceedings of the 23rd International Conference on Extending Database Technology (EDBT 2020), Copenhagen, Denmark (held virtually), 2020/4
2019
- Ralph Gasser, Luca Rossetto, Heiko Schuldt
Towards an All-Purpose Content-Based Multimedia Information Retrieval System
arXiv cs.MM, 2019/2 - Luca Rossetto, Heiko Schuldt, George Awad and Asad A. Butt
V3C — a Research Video Collection
Proceedings of the 25th International Conference on MultiMedia Modeling, Thessaloniki, Greece, 2019/1
2018
- Marco Vogt, Alexander Stiemer, Heiko Schuldt
Polypheny-DB: Towards a Distributed and Self-Adaptive Polystore
Proceedings of the 2018 IEEE International Conference on Big Data (Big Data) – 7th Workshop on Scalable Cloud Data Management (SCDM’2018), Seattle, WA, USA, 2018/12 - Luca Rossetto
Multi-Modal Video Retrieval
PhD Thesis, Department of Mathematics and Computer Science, University of Basel, 2018/9 - Luca Rossetto, Ivan Giangreco, Ralph Gasser and Heiko Schuldt
Competitive Video Retrieval with vitrivr at the Video Browser Showdown 2018 - Final Notes
arXiv cs.MM, 2018/5 - Ivan Giangreco
Database Support for Large-Scale Multimedia Retrieval
PhD Thesis, Department of Mathematics and Computer Science, University of Basel, 2018/3 - Luca Rossetto, Ivan Giangreco, Ralph Gasser and Heiko Schuldt
Competitive Video Retrieval with vitrivr
Proceedings of the International Conference on Multimedia Modeling (MMM), Bangkok, Thailand, 2018/2 - Luca Rossetto and Heiko Schuldt
The Long Tail of Web Video
Proceedings of the 24th International Conference on Multimedia Modeling, Bangkok, Thailand, 2018/2 - Stéphane Dupont, Ozan Can Altiok, Aysegül Bumin, Ceren Dikmen, Ivan Giangreco, Silvan Heller, Emre Külah, Gueorgui Pironkov, Luca Rossetto, Yusuf Sahillioglu, Heiko Schuldt, Omar Seddati, Yusuf Setinkaya, Metin Sezgin, Claudiu Tanase, Emre Toyan, Sean Wood, Doguhan Yeke
VideoSketcher: Innovative Query Modes for Searching Videos through Sketches, Motion and Sound
Proceedings of the eNTERFACE 2015 Workshop on Intelligent Interfaces, 2018/1
2017
- Marco Vogt, Alexander Stiemer, Heiko Schuldt
Icarus: Towards a Multistore Database System
Proceedings of the 2017 IEEE International Conference on Big Data (Big Data) – 6th Workshop on Scalable Cloud Data Management (SCDM’2017), Boston, MA, USA, 2017/12 - Ilir Fetai, Alexander Stiemer, Heiko Schuldt
QuAD: A Quorum Protocol for Adaptive Data Management in the Cloud
Proceedings of the 2017 IEEE International Conference on Big Data (Big Data 2017) , Boston, MA, USA, 2017/12 - Luca Rossetto and Heiko Schuldt
Web Video in Numbers - An Analysis of Web-Video Metadata
arXiv cs.MM, 2017/7 - Luca Rossetto, Ivan Giangreco, Claudiu Tănase and Heiko Schuldt
Multimodal Video Retrieval with the 2017 IMOTION System
Proceedings of International Conference on Multimedia Retrieval (ICMR), Bucharest, Romania, 2017/6 - Ivan Giangreco, Luca Rossetto, Claudiu Tănase, Heiko Schuldt
vitrivr: A Multimedia Search System supporting Multimodal Interactions
Proceedings of the International Conference on Multimodal Communication: Developing New Theories and Methods, Osnabrück, Germany, 2017/6 - Prateek Goel, Ivan Giangreco, Luca Rossetto, Claudiu Tănase, Heiko Schuldt
Hey, vitrivr! - A Multimodal UI for Video Retrieval
Proceedings of the European Conference on Information Retrieval (ECIR), Aberdeen, Scotland, UK, 2017/4 - Luca Rossetto, Ivan Giangreco, Claudiu Tănase, Heiko Schuldt, Stéphane Dupont, Omar Seddati
Enhanced Retrieval and Browsing in the IMOTION System
Proceedings of the International Conference on Multimedia Modeling (MMM), Reykjavik, Iceland, 2017/1
2016
- Alexander Stiemer, Ilir Fetai and Heiko Schuldt
Analyzing the Performance of Data Replication and Data Partitioning in the Cloud: the Beowulf Approach
Proceedings of the 4th International Workshop on Scalable Cloud Data Management (SCDM 2016) - co-located with IEEE Big Data 2016, Washington, D.C., USA, 2016/12 - Claudiu Tănase, Luca Rossetto, Ivan Giangreco, Heiko Schuldt, Stéphane Dupont and Omar Seddati
The IMOTION System at TRECVID 2016: The Ad-Hoc Video Search Task
Proceedings of the 2016 TRECVID Ad-Hoc Video Search Task, 2016/10 - Claudiu Tănase, Luca Rossetto, Ivan Giangreco and Heiko Schuldt
The vitrivr System at TRECVID 2016: The Ad-Hoc Video Search Task
Proceedings of the 2016 TRECVID Ad-Hoc Video Search Task, 2016/10 - Luca Rossetto, Ivan Giangreco, Claudiu Tănase, Heiko Schuldt
vitrivr - A Flexible Retrieval Stack Supporting Multiple Query Modes for Searching in Multimedia Collections
Proceedings of the International ACM Conference on Multimedia (ACM MM), Amsterdam, NL, 2016/10 - Ilir Fetai
Cost- and Workload-based Data Management in the Cloud
PhD Thesis, Department of Mathematics and Computer Science, University of Basel, 2016/9 - Claudiu Cobârzan, Klaus Schoeffmann, Werner Bailer, Wolfgang Hürst, Adam Blažek, Jakub Lokoč, Stefanos Vrochidis, Kai Uwe Barthel, Luca Rossetto
Interactive video search tools: a detailed analysis of the video browser showdown 2015
Multimedia Tools and Applications, 2016/7 - Filip-Martin Brinkmann, Ilir Fetai, Heiko Schuldt
SLA-basierte Konfiguration eines modularen Datenbanksystems für die Cloud
D. Fasel, A. Meier (Hrsg.): Big Data: Grundlagen, Systeme und Nutzungspotenziale (Edition HMD), 2016/7 - Ivan Giangreco and Heiko Schuldt
ADAMpro: Database Support for Big Multimedia Retrieval
Datenbank-Spektrum, Schwerpunktthema “Big Data & IR”, 2016/3 - Claudiu Tănase, Ivan Giangreco, Luca Rossetto, Heiko Schuldt, Omar Seddati, Stéphane Dupont, Ozan Can Altiok, Metin Sezgin
Semantic Sketch-Based Video Retrieval with Autocompletion
Proceedings of the ACM International Conference on Intelligent User Interfaces (IUI), Sonoma, CA, USA, 2016/3 - Luca Rossetto, Claudiu Tănase, Heiko Schuldt
Dealing with ambiguous Queries in Multimodal Video Retrieval
Proceedings of the 22nd International Conference on Multimedia Modeling (MMM 2016), Miami, FL, USA, 2016/1 - Luca Rossetto, Ivan Giangreco, Claudiu Tănase, Heiko Schuldt, Stéphane Dupont, Omar Seddati, Metin Sezgin, Yusuf Sahillioğlu
iAutoMotion - an Autonomous Content-based Video Retrieval Engine
Proceedings of the International Conference on Multimedia Modeling (MMM) - Video Browser Showdown, Miami, FL, USA, 2016/1 - Luca Rossetto, Ivan Giangreco, Silvan Heller, Claudiu Tănase, Heiko Schuldt, Stéphane Dupont, Omar Seddati, Metin Sezgin, Ozan Can Altıok, Yusuf Sahillioğlu
IMOTION - Searching for Video Sequences using Multi-Shot Sketch Queries
Proceedings of the International Conference on Multimedia Modeling (MMM) - Video Browser Showdown, Miami, FL, USA, 2016/1 - Luca Rossetto, Ivan Giangreco, Silvan Heller, Claudiu Tănase, and Heiko Schuldt
Searching in Video Collections using Sketches and Sample Images - The Cineast System
Proceedings of the International Conference on Multimedia Modeling (MMM), Miami, FL, USA, 2016/1
2015
- Alexander Stiemer, Ilir Fetai and Heiko Schuldt
Comparison of Eager and Quorum-based Replication in a Cloud Environment
Proceedings of the 2015 IEEE International Conference on Big Data (Big Data 2015), Santa Clara, CA, USA, 2015/10 - Luca Rossetto, Ivan Giangreco, Heiko Schuldt
OSVC - Open Short Video Collection 1.0
Technical Report CS-2015-002, Department of Mathematics and Computer Science, University of Basel, 2015/10 - Ilir Fetai, Damian Murezzan and Heiko Schuldt
Workload-Driven Adaptive Data Partitioning and Distribution – The Cumulus Approach
The Proceedings of the 2015 IEEE International Conference on Big Data (Big Data), Santa Clara, CA, USA, 2015/10 - Nenad Stojnić and Heiko Schuldt
Optimized P2P Data Management for Reliable Workflow Execution in Mobile Environments
Datenbank-Spektrum, Schwerpunktthema Data Management for Mobility, 2015/7 - Nenad Stojnić
Self-Organizing Distributed Workflow Management
PhD Thesis, Department of Mathematics and Computer Science, University of Basel, Switzerland, 2015/5 - Luca Rossetto, Ivan Giangreco, Heiko Schuldt, Stéphane Dupont, Omar Seddati, Metin Sezgin, Yusuf Sahillioğlu
IMOTION - a Content-based Video Retrieval Engine
Proceedings of the 21st MultiMedia Modelling Conference (MMM2015) - Video Search Showcase Track, Sydney, Australia, 2015/1
2014
- Luca Rossetto, Ivan Giangreco, Heiko Schuldt
Cineast: A Multi-Feature Sketch-Based Video Retrieval Engine
Proceedings of the IEEE International Symposium on Multimedia (ISM), Taichung, Taiwan, 2014/12 - Ivan Giangreco, Ihab Al Kabary, Heiko Schuldt
ADAM — A System for Jointly Providing IR and Database Queries in Large-Scale Multimedia Retrieval
Proceedings of the International ACM SIGIR Conference on Research & Development in Information Retrieval (SIGIR), Gold Coast, Australia, 2014/7 - Ivan Giangreco, Ihab Al Kabary, Heiko Schuldt
ADAM — A Database and Information Retrieval System for Big Multimedia Collections
Proceedings of the International Congress on Big Data (BigData), Anchorage, AK, USA, 2014/6 - Ilir Fetai, Filip-Martin Brinkmann and Heiko Schuldt
PolarDBMS:Towards a Cost-Effective and Policy-Based Data Management in the Cloud
Proceedings of the 6th International Workshop on Cloud Data Management (CloudDB 2014), Chicago, IL, USA, 2014/3
2013
- Lukas Probst, Nenad Stojnić and Heiko Schuldt
COMPASS – Latency Optimal Routing in Heterogeneous Chord-based P2P Systems
Technical Report CS-2013-004, Department of Mathematics and Computer Science, University of Basel, 2013/12 - Ilir Fetai and Heiko Schuldt
SO-1SR:Towards a self-optimizing One-Copy Serializability Protocol for Data Management in the Cloud
Fifth International Workshop on Cloud Data Management (CloudDB 2013), California, USA, 2013/10 - Nenad Stojnić , Lukas Probst, and Heiko Schuldt
COMPASS – Optimized Routing for Efficient Data Access in Mobile Chord-based P2P Systems
Proceedings of the 14th IEEE International Conference on Mobile Data Management (MDM 2013), Milan, Italy, 2013/6 - Nenad Stojnić and Heiko Schuldt
OSIRIS-SR – A Scalable yet Reliable Distributed Workflow Execution Engine
Proceedings of the 2nd International Workshop on Scalable Workflow Enactment Engines and Technologie, New York City, NY, USA, 2013/6
2012
- Ilir Fetai and Heiko Schuldt
Cost-Based Data Consistency in a Data-as-a-Service Cloud Environment
Proceedings of the 5th International Conference on Cloud Computing (CLOUD 2012), Honolulu, HI, USA, 2012/6 - Nenad Stojnić , Heiko Schuldt
OSIRIS-SR:A Safety Ring for Self-Healing Distributed Composite Service Execution
Proceedings of the 7th International Symposium on Software Engineering for Adaptive and Self-Managin, Zürich, Switzerland, 2012/6 - Nenad Stojnić and Heiko Schuldt
Safety Ring:Fault-tolerant Distributed Process Execution in OSIRIS
Technical Report CS-2012-002, Department of Mathematics and Computer Science, University of Basel, 2012/5 - Michael Springmann
Building Blocks for Adaptable Image Search in Digital Libaries
PhD Thesis, Department of Mathematics and Computer Science, University of Basel, Switzerland, 2012/4 - Ilir Fetai and Heiko Schuldt
Cost-Based Adaptive Concurrency Control in the Cloud
Technical Report CS-2012-001, Department of Mathematics and Computer Science, University of Basel, 2012/2
2011
- Walter Binder and Heiko Schuldt (Eds.)
Proceedings of the 6th Workshop on Enhanced Web Service Technologies (WEWST 2011)
ACM Digital Library, Lugano, Switzerland, 2011/9 - Walter Binder, Daniele Bonetta, Cesare Pautasso, Achille Peternier, Diego Milano, Heiko Schuldt, Nenad Stojnić , Boi Faltings, Immanuel Trummer
Towards Self-Organizing Service-Oriented Architectures
Proceedings of the 5th IEEE International Workshop on Software Engineering for Adaptive Service-orie, Washington DC, USA, 2011/7
2010
- Walter Binder and Heiko Schuldt (Eds.)
Proceedings of the 5th Workshop on Enhanced Web Service Technologies
WEWST 2010, Ayia Napa, Cyprus, 2010/12 - Diego Milano and Nenad Stojnić
Shepherd:Node Monitors for Fault-Tolerant Distributed Process Execution in OSIRIS
Proceedings of the 5th Workshop on Enhanced Web Service Technologies (WEWST 2010), Ayia Napa, Cyprus, 2010/12 - Laura Cristiana Voicu, Heiko Schuldt, Yuri Breitbart, Hans-Jörg Schek
Flexible Data Access in a Cloud based on Freshness Requirements
Proceedings of the 3rd International Conference on Cloud Computing (IEEE CLOUD 2010), Miami, FL, USA, 2010/7
2009
- Laura Cristiana Voicu and Heiko Schuldt
How Replicated Data Management in the Cloud can benefit from a Data Grid Protocol — the Re:GRIDiT Approach
Proceedings of the 1st International Workshop on Cloud Data Management (CloudDB 2009), Hong Kong, China, 2009/11 - Laura Cristiana Voicu, Heiko Schuldt
Load-Aware Dynamic Replication Management in a Data Grid
17th International Conference on Cooperative Information Systems (CoopIS 2009), Vilamoura, Portugal, 2009/11 - Laura Cristiana Voicu, Heiko Schuldt, Fuat Akal, Yuri Breitbart, Hans Jörg Schek
Re:GRIDiT – Coordinating Distributed Update Transactions on Replicated Data in the Grid
10th IEEE/ACM International Conference on Grid Computing (Grid 2009), Banff, Canada, 2009/10
2008
- Fuat Akal, Heiko Schuldt and Hans-Jörg Schek
Toward Replication in Grids for Digital Libraries with Freshness and Correctness Guarantees
Concurrency and Computation Practice and Experience, 2008/1
2007
- Leonardo Candela, Fuat Akal, Henri Avancini, Donatella Castelli, Luigi Fusco, Veronica Guidetti, Christoph Langguth, Andrea Manzi, Pasquale Pagano, Heiko Schuldt, Manuele Simi, Michael Springmann, Laura Voicu
DILIGENT:integrating digital library and Grid technologies for a new Earth observation research infrastructure
International Journal on Digital Libraries, 2007/10 - Michael Springmann, Heiko Schuldt
Speeding up IDM Without Degradation of Retrieval Quality
Advances in Multilingual and Multimodal Information Retrieval:Proceedings of the 8th Workshop of the, Budapest, Hungary, 2007/9 - Fuat Akal, Heiko Schuldt, Hans-Jörg Schek
Toward Replication in Grids for Digital Libraries with Freshness and Correctness Guarantees
Proceedings of 3rd VLDB Workshop on Data Management in Grids (DMG 2007), Vienna, Austria, 2007/9
2006
- Christoph Schuler, Can Türker, Hans-Jörg Schek, Roger Weber, Heiko Schuldt
Scalable Peer-to-Peer Process Management
Int. J. Business Process Integration and Management, 2006/3