Process discovery is an important area in the field of process mining. To help advance this area, a process discovery contest (PDC) has been set up, which allows us to compare different approaches. At the moment of writing, there have been three instances of the PDC: in 2016, in 2017, and in 2019. This paper introduces the winning contribution to the PDC 2019, called the Log Skeleton Visualizer. This visualizer uses a novel type of process models called log skeletons. In contrast with many workflow net-based discovery techniques, these log skeletons do not rely on the directly follows relation. As a result, log skeletons offer circumstantial information on the event log at hand rather than only sequential information. Using this visualizer, we were able to classify 898 out of 900 traces correctly for the PDC 2019 and to win this contest.
Neural Computing and Applications - Single point incremental forming is a sheet metal forming technique with great potential for use in prototyping and custom manufacture. Although this technology... 相似文献
The idea of taking into account environmental impact criteria in the process design becomes a necessity for both the industry and governments, due to increased binding regulations. Moreover, to address the issue of integrating sustainable processes, environmental impact must be weighed and balanced against other concerns, such as economic performance, product quality, and long-term sustainability. Therefore, this study introduces a methodology for environmental impact minimization and optimization of multiple conflicting criteria. A general eco-design method for biomass drying process is proposed. The main target is to develop an assessment computer-aided process engineering tool that compares environmental impacts of different operating conditions and fuel types to support decision-makers for an improved compliance to environmental criterion and sustainability. 相似文献
This paper is an analysis of rectangular waveguide completely full of ferrite magnetized longitudinally. The analysis is based
on the formulation of the transverse operator method (TOM), followed by the application of the Galerkin method. We obtain
an eigenvalue equation system. The propagation constant of some homogenous and anisotropic waveguide structures with ferrite
has been obtained. The results presented here show that the transverse operator formulation is not only an elegant theoretical
form, but also a powerful and efficient analysis method, it is useful to solve a number of the propagation problems in electromagnetic.
One advantage of this method is that it presents a fast convergence. Numerical examples are given for different cases and
compared with the published results. A good agreement is obtained. 相似文献
This paper addresses the problem of accurately segmenting instances of object classes in images without any human interaction.
Our model combines a bag-of-words recognition component with spatial regularization based on a random field and a Dirichlet
process mixture. Bag-of-words models successfully predict the presence of an object within an image; however, they can not
accurately locate object boundaries. Random Fields take into account the spatial layout of images and provide local spatial
regularization. Yet, as they use local coupling between image labels, they fail to capture larger scale structures needed
for object recognition. These components are combined with a Dirichlet process mixture. It models images as a composition
of regions, each representing a single object instance. Gibbs sampling is used for parameter estimations and object segmentation. 相似文献