Semantic Web and Linked Data are widely considered as effective and powerful technologies for integrating heterogeneous data models and data sources. However, there is still a gap between promising research results an...
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Image features are usually extracted globally from whole images or locally from regions-of-interest. We propose different approaches to extract semi-local features from segmented objects in the context of object detec...
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ISBN:
(纸本)9789898425980
Image features are usually extracted globally from whole images or locally from regions-of-interest. We propose different approaches to extract semi-local features from segmented objects in the context of object detection. The focus lies on the transformation of arbitrarily shaped object segments to image regions that are suitable for the extraction of features like SIFT, Gabor wavelets, and MPEG-7 color features. In this region transformation step, decisions arise about the used region boundary size and about modifications of the object and its background. Amongst others, we compare uniformly colored, blurred and randomly sampled backgrounds versus simple bounding boxes without object-background modifications. An extensive evaluation on the Pascal VOC 2010 segmentation dataset indicates that semi-local features are suitable for this task and that a significant difference exists between different feature extraction methods.
This paper describes an approach to mine for competencies of users' in a social software system. The system supports knowledge sharing in a structured way supported by social tagging and an ontology. This meta-dat...
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ISBN:
(纸本)1934272582
This paper describes an approach to mine for competencies of users' in a social software system. The system supports knowledge sharing in a structured way supported by social tagging and an ontology. This meta-data is used to find relevant knowledge sources, cluster these resources and to recommend certain resources to users. Our research assumption is, that if a user enters knowledge about a certain domain, s/he is in a certain degree competent in this area. In our experiment we generate competence profiles of users and compare it with a competence profile obtained by a self-assessment of users. In this paper we describe the performed experiments at the university where students and university staff use the system to share knowledge.
Service Management controls how business services are developed and delivered to customers. Business services must be flexible negotiable between customer and provider. Temporal attributes are important and in most ca...
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The original REA accounting model (McCarthy, 1982) has been extended in previous years into a business modeling language. Apart from its conceptual model, academic effort has been put into the definition of a formal d...
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ISBN:
(纸本)9789897580321
The original REA accounting model (McCarthy, 1982) has been extended in previous years into a business modeling language. Apart from its conceptual model, academic effort has been put into the definition of a formal description language, based on standards such as UML or OWL. The specification of a generic data model from a software engineering point of view for domain independent use of REA for business model specification and execution has been touched only briefly in the past. Thus, we present a data model concept for runtime-configurable REA business model definition and execution.
There are many approaches for Computer-aided software engineering (CASE), often accomplished by expensive tools of market-leading companies. However, to minimize cost, system architects and software designers look for...
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ISBN:
(纸本)9789898111845
There are many approaches for Computer-aided software engineering (CASE), often accomplished by expensive tools of market-leading companies. However, to minimize cost, system architects and software designers look for less expensive, if not open-source, CASE tools. As there is often no common understanding on functionality and application area, a general inspection of the open-source CASE tool market is needed. The idea of this paper is to define a "status quo" of the functionality and the procedure models of open-source CASE tools by evaluating these tools using a criteria catalogue for the areas: technology, modelling, code generation, procedure model, and administration. Based on this criteria catalogue, 8 open-source CASE tools were evaluated with 5 predefined scenarios. Major result is: there was no comprehensive open-source CASE tool which assists and fits well to a broad set of developer tasks, especially since a small set of the evaluated tools lack a solid implementation in several of the criteria evaluated. Some of the evaluated tools show either just basic support of all evaluation criteria or high capabilities in a specific area, particularly in code generation.
Sharing personal information benefits both data providers and data consumers in many ways. Recent advances in sensor networks and personal archives enable users to record personal information including emails, social ...
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Most of the searches a patent expert at a patent office does are using boolean methods to query large databases of patent data. The Clef-Ip evaluation track is designed to experiment with information re trieval techni...
Most of the searches a patent expert at a patent office does are using boolean methods to query large databases of patent data. The Clef-Ip evaluation track is designed to experiment with information re trieval techniques on the patent domain. The data corpus in the Clef-Ip Lab consists of patent documents published by the European Patent Of-ce. One of the main tasks in the Lab has been related to the Prior Art type of search performed by the patent experts at patent offices. The task has went through various changes along the years, from using vir tual patent documents as topics (in 2009) to actual patent application documents, and sets of claims from patent application documents (2012 and 2013). Relevance assessments for this task were based on Search Reports published by the European Patent Office. In this overview we give report on the work we have done in organizing this retrieval task in 2013.
The paper introduces a novel interdisciplinary project addressing the analysis of historical artistic films. The type of employed material has not been subject to automatic analyses, so far. It poses challenges in all...
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Market players that can respond to critical business events faster than their competitors will end up as winners in the fast moving economy. Event-based systems have been developed and used to implement networked and ...
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ISBN:
(纸本)9780769529134
Market players that can respond to critical business events faster than their competitors will end up as winners in the fast moving economy. Event-based systems have been developed and used to implement networked and adaptive business environments based on loosely coupled systems. In this paper we introduce Event Cloud, a system that allows searching for business events in a variety of contexts that also take the relationships between events into consideration. Event Cloud supports knowledge workers in their daily operations in order to perform investigations and analyses based on historical events. It enables users to search in large sets of historical events which are correlated and indexed in a data staging process with an easy-to-use search interface. For improving the search results, we propose an index based ranking system. We present an architecture for the Event Cloud system, which supports a continuous near real-time integration of business events with the aim of decreasing the time it takes to make them available for searching purposes. We have fully implemented the proposed architecture and discuss implementation details.
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