The present paper deals with automatic segmentation of mosaics, whose aim is obtaining a digital representation of the mosaic where the shape of each tile is recovered. This is an important step, for instance, for pre...
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ISBN:
(纸本)9789897580918
The present paper deals with automatic segmentation of mosaics, whose aim is obtaining a digital representation of the mosaic where the shape of each tile is recovered. This is an important step, for instance, for preserving ancient mosaics. By using a ground-truth consisting of a set of manually annotated mosaics, we objectively compare the performance of some existing recent segmentation methods, based on a simple error metric taking into account precision, recall and the error on the number of tiles. Moreover, we introduce some mosaic-specific hardness estimators (namely some indexes of how difficult is the task of segmenting a particular mosaic image). The results show that the only segmentation algorithm specifically designed for mosaics performs better than the general purpose algorithms. However, the problem of segmentation of mosaics appears still partially unresolved and further work is needed for exploiting the specificity of mosaics in designing new segmentation algorithms.
The seamless integration of commercial-off-the-shelf (COTS) components offers many benefits associated with reuse. Even with successful composite applications, unexpected interoperability conflicts can arise when COTS...
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Sentiment analysis is the method of identifying and classifying the views of users from text documents into different sentiments, such as positive, negative or neutral. Sentiment analysis can be employed to extract st...
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Integrating COTS products into a composite application can reduce development effort and associated costs. A major drawback comes from interoperability problems that hinder the seamless integration of components. Two ...
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With the advances in information and communication technologies, an immense amount of information has been shared on social media and microblogging platforms. Much of the online content contains elements of figurative...
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The dynamic stress in existing bridge transition section of often bigger than ordinary roadbed due to its stiffness irregularity, so using the ordinary subgrade bearing standard as bridge transition section standard i...
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In this paper we present work towards a software framework for robots in the context of the building/construction of nextgeneration architectural designs. We call these architectural robots. Our software framework is ...
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This paper focuses on the impact of promotional activities on the order volume of e-commerce users and the influence of unexpected events such as the COVID-19 pandemic on logistics transportation volume. The VMD algor...
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Unreliable design practices on Ethiopian road construction projects have become a crucial matter concerning the late completion of road construction projects, high-cost overruns, and premature failures. The present re...
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Workflow reconfiguration traditionally modifies only workflow definitions. Incorporating dynamism in Web service workflows should also adapt instance execution as services change availability. Commercial workflow engi...
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Workflow reconfiguration traditionally modifies only workflow definitions. Incorporating dynamism in Web service workflows should also adapt instance execution as services change availability. Commercial workflow engines lack mechanisms to adapt instances except where instances deploy with all possible workflow paths, to achieve pseudo-dynamism. This error prone method has the potential for unsound specifications and still does not allow runtime modifications. We perform workflow reconfiguration through an inspection-feedback loop that decouples services specifications and priorities that can change BPEL workflows from their actual execution. When a change occurs, such as service unavailability, immediate adaptation of the workflow instance takes place. To guarantee proper reconfiguration, we formally specify the architecture, interactions, and change directives, according to a natural separation of reconfiguration concerns. We prove the workflow instance will correctly adapt to an alternative service when certain conditions are met.
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