scholarly journals DBpedia Archivo: A Web-Scale Interface for Ontology Archiving Under Consumer-Oriented Aspects

2020 ◽  
pp. 19-35
Author(s):  
Johannes Frey ◽  
Denis Streitmatter ◽  
Fabian Götz ◽  
Sebastian Hellmann ◽  
Natanael Arndt
Keyword(s):  
Quality Control ◽  
Quality Measures ◽  
The Web

Abstract While thousands of ontologies exist on the web, a unified system for handling online ontologies – in particular with respect to discovery, versioning, access, quality-control, mappings – has not yet surfaced and users of ontologies struggle with many challenges. In this paper, we present an online ontology interface and augmented archive called DBpedia Archivo, that discovers, crawls, versions and archives ontologies on the DBpedia Databus. Based on this versioned crawl, different features, quality measures and, if possible, fixes are deployed to handle and stabilize the changes in the found ontologies at web-scale. A comparison to existing approaches and ontology repositories is given .

Vision-Based Precision Deburring and Edge Breaking Process Quality Control

2020 ◽  
Author(s):  
Kartik Gupta ◽  
Cindy Grimm ◽  
Burak Sencer ◽  
Ravi Balasubramanian
Keyword(s):  
Computer Vision ◽  
Quality Control ◽  
Vision System ◽  
Quality Measures ◽  
Cad Model ◽  
Computer Vision System ◽  
Part Geometry ◽  
Specialized Hardware ◽  
Original Part

Abstract This paper presents a computer vision system for evaluating the quality of deburring and edge breaking on aluminum and steel blocks. This technique produces both quantitative (size) and qualitative (quality) measures of chamfering operation from images taken with an off-the-shelf camera. We demonstrate that the proposed computer vision system can detect edge chamfering geometry within a 1–2mm range. The proposed technique does not require precise calibration of the camera to the part nor specialized hardware beyond a macro lens. Off-the-shelf components and a CAD model of the original part geometry are used for calibration. We also demonstrate the effectiveness of the proposed technique on edge breaking quality control.

scholarly journals Creating And Working With Control Charts In Excel

2016 ◽  
Vol 10 (1) ◽  
pp. 23-44
Author(s):  
Paul F. Schikora
Keyword(s):  
Distance Education ◽  
Quality Control ◽  
Control Charts ◽  
Theoretical Basis ◽  
Effective Control ◽  
Interactive Mode ◽  
Quality Control Charts ◽  
Hands On ◽  
Problem Data ◽  
The Web

With the growth in distance education offerings, instructors who now teach quantitative material via the web have been faced with many challenges.  Foremost has been the need to develop appropriate methods for teaching such material to students who are not physically in the classroom.  Methodologies that have traditionally been taught in a highly interactive mode in the classroom must now be presented effectively in a far more asynchronous environment.  Tutorials and detailed handouts are one way to accomplish this. We present a written tutorial for creating quality control charts using Excel.  The tutorial guides students through the process of creating X-bar and R charts in such a way as to reinforce the theoretical basis of quality control already taught.  Students apply their knowledge in hands-on activity, learn how to improve Excel’s default charts to create visually effective control charts, and learn to reuse/recycle their work to easily create additional charts for different sets of problem data.

scholarly journals Using the web for recruitment, screen, tracking, data management, and quality control in a dietary assessment clinical validation trial

2010 ◽  
Vol 31 (2) ◽  
pp. 138-146 ◽  
Author(s):  
Lenore Arab ◽  
Harry Hahn ◽  
Judith Henry ◽  
Sara Chacko ◽  
Ashley Winter ◽  
...  
Keyword(s):  
Quality Control ◽  
Data Management ◽  
Dietary Assessment ◽  
Clinical Validation ◽  
Tracking Data ◽  
The Web

Quality measures for skos

2018 ◽  
Vol 52 (3) ◽  
pp. 405-423 ◽  
Author(s):  
Riccardo Albertoni ◽  
Monica De Martino ◽  
Paola Podestà
Keyword(s):  
Linked Data ◽  
Design Methodology ◽  
Quality Measures ◽  
Third Party ◽  
Data Set ◽  
Content Type ◽  
Knowledge Organisation ◽  
The Cross ◽  
The Web

Purpose The purpose of this paper is to focus on the quality of the connections (linkset) among thesauri published as Linked Data on the Web. It extends the cross-walking measures with two new measures able to evaluate the enrichment brought by the information reached through the linkset (lexical enrichment, browsing space enrichment). It fosters the adoption of cross-walking linkset quality measures besides the well-known and deployed cardinality-based measures (linkset cardinality and linkset coverage). Design/methodology/approach The paper applies the linkset measures to the Linked Thesaurus fRamework for Environment (LusTRE). LusTRE is selected as testbed as it is encoded using a Simple Knowledge Organisation System (SKOS) published as Linked Data, and it explicitly exploits the cross-walking measures on its validated linksets. Findings The application on LusTRE offers an insight of the complementarities among the considered linkset measures. In particular, it shows that the cross-walking measures deepen the cardinality-based measures analysing quality facets that were not previously considered. The actual value of LusTRE’s linksets regarding the improvement of multilingualism and concept spaces is assessed. Research limitations/implications The paper considers skos:exactMatch linksets, which belong to a rather specific but a quite common kind of linkset. The cross-walking measures explicitly assume correctness and completeness of linksets. Third party approaches and tools can help to meet the above assumptions. Originality/value This paper fulfils an identified need to study the quality of linksets. Several approaches formalise and evaluate Linked Data quality focusing on data set quality but disregarding the other essential component: the connection among data.

Photo Based Volunteered Geographic Information Initiatives

2019 ◽  
pp. 1124-1142
Author(s):  
Jacinto Estima ◽  
Marco Painho
Keyword(s):  
Land Use ◽  
Quality Control ◽  
Preliminary Analysis ◽  
Field Data ◽  
Volunteered Geographic Information ◽  
Geographic Information ◽  
Spatial Distributions ◽  
Great Opportunity ◽  
Corine Land Cover ◽  
The Web

Volunteered Geographic Information has become exponentially available over the Web in the last years. This availability can hide a vast geographical richness and provides us with both a great opportunity to explore new ways to use it and also big challenges related with its unstructured nature. This paper conducts a preliminary analysis of the adequacy of photos from the Flickr and Panoramio initiatives in order to use them as a source of field data in the quality control of the Land Use/Cover databases production. It evaluates its temporal and spatial distributions over Continental Portugal and also its distribution over Land Use/Cover classes using as a reference the European Corine Land Cover database. It concludes that this source is very valuable but needs to be combined with other sources due to its uneven spatial distribution.

Using the internet to acquire antiquarian books

2008 ◽  
Vol 33 (4) ◽  
pp. 28-32
Author(s):  
Johan Hanselaer
Keyword(s):  
Quality Control ◽  
The Internet ◽  
The Web

Here are some valuable tips for searching the web professionally for antiquarian books, and some helpful quality control for some of the book metasearch engines. It is important to remember that it is much more productive to use one of these engines than simply to use Abebooks. One can also search for books at auctions, although this takes a lot more time since no metasearch engines are currently available.

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