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Process Comparison Using Object-Centric Process Cubes [article]

Anahita Farhang Ghahfarokhi, Alessandro Berti, Wil M.P. van der Aalst
2021 arXiv   pre-print
To make a bridge between object-centric process mining and process comparison, we propose a process cube framework, which supports process cube operations such as slice and dice on object-centric event  ...  Process comparison is a branch of process mining that isolates different behaviors of the process from each other by using process cubes. Process cubes organize event data using different dimensions.  ...  Moreover, to facilitate the comparison, we use object-centric process discovery approaches.  ... 
arXiv:2103.07184v1 fatcat:azkuiywymzazjcoocjscsdwiwa

Removing Operational Friction Using Process Mining: Challenges Provided by the Internet of Production (IoP) [article]

Wil van der Aalst and Tobias Brockhoff and Anahita Farhang Ghahfarokhi and Mahsa Pourbafrani and Merih Seran Uysal and Sebastiaan van Zelst
2021 arXiv   pre-print
times), object-centric process mining (to handle processes involving different types of objects that interact), and forward-looking process mining (to explore "What if?"  ...  Using existing process mining tools, it is already possible to automatically discover process models and uncover performance and compliance problems.  ...  Therefore, traditional process cubes cannot handle object-centric event logs and it is worthwhile to bridge the gap between process comparison approaches and object-centric process mining.  ... 
arXiv:2107.13066v1 fatcat:67wnvipnufcwvh4qr2wdxwbl7u

Finding an application-appropriate model for XML data warehouses

Franck Ravat, Olivier Teste, Ronan Tournier, Gilles Zurfluh
2010 Information Systems  
Decision support systems help the decision making process with the use of OLAP (On-Line Analytical Processing) and data warehouses. These systems allow the analysis of corporate data.  ...  In data-centric XML documents, the order is not important.  ...  Analysis Framework Comparison Data warehousing is usually used to perform OLAP style analyses on data.  ... 
doi:10.1016/ fatcat:2qeuwx3cx5a5fjxttaobsx2bdy

Constructing an XML database of linguistics data

J H Kroeze, T JD Bothma, M C Matthee
2010 The Journal for Transdisciplinary Research in Southern Africa  
This "data-centric application of XML" may be quite different from the more conventional "document-centric" applications -data-centric files, which are usually processed by machines, are much more structured  ...  are also called narrative-centric or text-centric documents.  ... 
doi:10.4102/td.v6i1.118 fatcat:xlkvxdisrbagtnrfeozoubd4oi

Unsupervised Discovery of Object Radiance Fields [article]

Hong-Xing Yu, Leonidas J. Guibas, Jiajun Wu
2021 arXiv   pre-print
We study the problem of inferring an object-centric scene representation from a single image, aiming to derive a representation that explains the image formation process, captures the scene's 3D nature  ...  Most existing methods on scene decomposition lack one or more of these characteristics, due to the fundamental challenge in integrating the complex 3D-to-2D image formation process into powerful inference  ...  Nevertheless, they do not explain image formation process nor are they 3D-aware. Unsupervised object-centric scene decomposition.  ... 
arXiv:2107.07905v1 fatcat:6j4wm4e5zzdq7gw2bfxd5g4jdm

Learning Dexterous Grasping with Object-Centric Visual Affordances [article]

Priyanka Mandikal, Kristen Grauman
2021 arXiv   pre-print
., hand joint sequences captured with a glove), the proposed prior is object-centric and image-based, allowing the agent to anticipate useful affordance regions for objects unseen during policy learning  ...  Our key idea is to embed an object-centric visual affordance model within a deep reinforcement learning loop to learn grasping policies that favor the same object regions favored by people.  ...  The proprioception and hand-object distance inputs are processed using a 2-layer fully-connected encoder of dimension [512, 512] .  ... 
arXiv:2009.01439v2 fatcat:xvlhvzxokjcshnlv6zmmo6kece

User-centric spatial data warehousing: a survey of requirements and approaches

Ganesh Viswanathan, Markus Schneider
2014 International Journal of Data Mining Modelling and Management  
We gather the most essential requirements for handling spatial data and use insights from spatial databases and GIS systems to design a meta-framework that would enable a user-centric modelling of complex  ...  Our strategy is to keep the user as the focal point in the analysis process and lay the foundation for clear data abstraction at different levels using multidimensional abstract data types and operations  ...  These requirements are then used to evaluate fourteen existing models, to classify them into three groups as simple cube models, structured cube models and statistical object models.  ... 
doi:10.1504/ijdmmm.2014.066764 fatcat:d3i3u2aj5jfa3fu7whnr3skxp4

On the Requirements for User-Centric Spatial Data Warehousing and SOLAP [chapter]

Ganesh Viswanathan, Markus Schneider
2011 Lecture Notes in Computer Science  
While studying these models, we gather the most essential requirements for handling spatial data in data warehouses and use insights from spatial databases to provide a "meta-framework" for modeling spatial  ...  In multidimensional OLAP design, data cubes can be constructed in memory to store and operate over the data warehouse. This is very similar to the cube model used for conceptual design.  ...  For example, in-memory multidimensional arrays can be used for constructing the materialized views that enable faster query processing on frequently accessed measures and data dimensions, while base level  ... 
doi:10.1007/978-3-642-20244-5_14 fatcat:y6t5mglzfzbipinc4u6ucbmfbq

Detecting Bacteria on Wounds with Hyperspectral Imaging in Fluorescence Mode

Christoph. Hornberger, Bert. H. Herrmann, Georg Daeschlein, Sebastian von Podewils, Claudia Sicher, Jana Kuhn, Kai Masur, Mareike Meister, Philip Wahl
2020 Current Directions in Biomedical Engineering  
Oxygen supply, bacteria colonization and other parameters influence the healing process. So far, these parameters cannot be monitored in an objective and routinely manner.  ...  After preprocessing, principal component analysis, PCA, is used for data analysis with a 405 nm excitation wavelength, the emission wavelength range 510 - 745 nm is used for analysis.  ...  Ethical approval: The research related to human use complies with all the relevant national regulations, institutional policies and was performed in accordance with the tenets of the Helsinki Declaration  ... 
doi:10.1515/cdbme-2020-3067 fatcat:jv5ugxvxkvfkfdcicnylqtcyte

Reinforcement Learning of Active Vision for Manipulating Objects under Occlusions [article]

Ricson Cheng, Arpit Agarwal, Katerina Fragkiadaki
2019 arXiv   pre-print
Distractors often occlude the object of in-terest and cause it to disappear from the field of view.  ...  We incorporate structural biases of object-centricattention within our actor-critic architectures, which our experiments suggest tobe a key for good performance.  ...  We use this object-centric representation in all our experiments.  ... 
arXiv:1811.08067v2 fatcat:i4lx77pgpbe3lk5tcnlm7763vq

A relational-XML data warehouse for data aggregation with SQL and XQuery

Joseph Fong, Herbert Shiu, Davy Cheung
2008 Software, Practice & Experience  
SQL and XQuery can be used to process the materialized relational and XML data cubes of aggregated data.  ...  This paper aims to facilitate handling these two data cubes from a Relational-XML data warehouse with ETL (Extract, Transformation and Loading).  ...  (i) XML data cube of the Relational-XML Data Warehouse Data Centric Schema in an XML Data Warehouse The schema of this XML data warehouse has a data centric design.  ... 
doi:10.1002/spe.868 fatcat:tuq6y5atajb5rghbhlibld5hdi

Concept and applications of In-Situ AR mashup content

Hyoseok Yoon, Woontack Woo
2011 Proceedings of 1st international symposium on From digital footprints to social and community intelligence - SCI '11  
At the same time, the user-generated AMC implicitly leaves rich and multi-dimensionally structured digital traces that can be collectively used to build SCI.  ...  Figure 2 . 2 Comparison of mashup concept. Figure 3 . 3 Architecture of in-situ AR mashup. Figure 4 . 4 Cube user interface for selection.  ...  In comparison, our in-situ AR mashup makes selection step easier by using a camera to detect Object-of-Interest, then extract keywords for searching and recommending contents for mashup.  ... 
doi:10.1145/2030066.2030074 fatcat:prye65ynfbhs5pf4lu5migxp3u

Design and Delivery of Technical Module for the Business Intelligence Course

Shouhong Wang, Hai Wang
2013 Journal of Information Technology Education Innovations in Practice  
User-Centric Framework of OLAP Strategy Development Generally, an OLAP strategy is a set of generalized or coarse hypotheses in the user's mind that OLAP processes are used to verify or disprove.  ...  Users require a priori knowledge of the business context and pertinent objectives of the analytical process to successfully employ BI.  ... 
doi:10.28945/1884 fatcat:lafroriwg5h2farcnimugjtomi

Ellipsoidal Cube Maps for Accurate Rendering of Planetary-Scale Terrain Data [article]

Martin Lambers, Andreas Kolb
2012 Pacific Conference on Computer Graphics and Applications  
In this paper, we propose the Ellipsoidal Cube Map model to address these problems.  ...  To allow reliable visual analysis of this data, terrain data for planetary objects needs to be rendered with accurate reproduction of every detail.  ...  Acknowledgements We thank the providers of data used in this work: NASA Earth Observatory, the International Centre for Tropical Agriculture (CIAT), the Utah GIS portal, the Mars Orbiter Laser Altimeter  ... 
doi:10.2312/pe/pg/pg2012short/005-010 dblp:conf/pg/LambersK12 fatcat:i5plbeoe5revdf4ya7lcyjejrq

Opportunities for the Use of Business Data Analysis Technologies

Signe Bāliņa, Rita Žuka, Juris Krasts
2016 Economics and Business  
In the model learning process, there is not some particular single attribute used, but all presented object attributes are used to an equal extent.  ...  It is a process where the raw data are transformed into useful information.  ... 
doi:10.1515/eb-2016-0003 fatcat:jds4eglbx5hivd3khqtkg7ohsq
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