Efficient Model Repository for Web Applications

Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 838)


Many model-based applications have been developed with standalone usage in mind. When migrating such applications to the web, we have to think about multiple users competing for limited server resources. In addition, we encounter the need to synchronize models via the network for client-side access. Thus, there is the risk that the model storage could become a bottleneck.

We propose a model repository that deals with these issues by using an efficient encoding of the model that resembles its Kolmogorov complexity. The encoding is suitable for direct sending over the network (with almost no overhead); it can also be used “as-is” in memory-mapped files, thus, utilizing the OS paging mechanism. By adding just 3 automatic indices, all traverse and query operations can be implemented efficiently. Our tests show that the proposed model repository outperforms other repositories concerning both CPU and memory and is able to hold 10,000 and more instances at the same time on a single server.


Models Model repository Web applications 



The work has been supported by European Regional Development Fund within the project #, application # “Model-Based Web Application Infrastructure with Cloud Technology Support”.


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© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Institute of Mathematics and Computer ScienceUniversity of LatviaRigaLatvia

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