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| 1 | Exploring the Potentialities of Automatic Extraction of University Webometric Information显示文摘Purpose:The main objective of this work is to show the potentialities of recently developed approaches for automatic knowledge extraction directly from the universities’websites.The information automatically extracted can be potentially updated with a frequency higher than once per year,and be safe from manipulations or misinterpretations.Moreover,this approach allows us flexibility in collecting indicators about the efficiency of universities’websites and their effectiveness in disseminating key contents.These new indicators can complement traditional indicators of scientific research(e.g.number of articles and number of citations)and teaching(e.g.number of students and graduates)by introducing further dimensions to allow new insights for“profiling”the analyzed universities.Design/methodology/approach:Webometrics relies on web mining methods and techniques to perform quantitative analyses of the web.This study implements an advanced application of the webometric approach,exploiting all the three categories of web mining:web content mining;web structure mining;web usage mining.The information to compute our indicators has been extracted from the universities’websites by using web scraping and text mining techniques.The scraped information has been stored in a NoSQL DB according to a semistructured form to allow for retrieving information efficiently by text mining techniques.This provides increased flexibility in the design of new indicators,opening the door to new types of analyses.Some data have also been collected by means of batch interrogations of search engines(Bing,www.bing.com)or from a leading provider of Web analytics(SimilarWeb,http://gffzz7594f747c9634dbehx6knuku0p55v6pc6.ffgz.tsg.suse.edu.cn).The information extracted from the Web has been combined with the University structural information taken from the European Tertiary Education Register(http://gffzzbd18f4732c3f4d63sx6knuku0p55v6pc6.ffgz.tsg.suse.edu.cn/#/home),a database collecting information on Higher Education Institutions(HEIs)at European level.All the above was used to perform a clusterization of 79 Italian universities based on structural and digital indicators.Findings:The main findings of this study concern the evaluation of the potential in digitalization of universities,in particular by presenting techniques for the automatic extraction of information from the web to build indicators of quality and impact of universities’websites.These indicators can complement traditional indicators and can be used to identify groups of universities with common features using clustering techniques working with the above indicators.Research limitations:The results reported in this study refers to Italian universities only,but the approach could be extended to other university systems abroad.Practical implications:The approach proposed in this study and its illustration on Italian universities show the usefulness of recently introduced automatic data extraction and web scraping approaches and its practical relevance for characterizing and profiling the activities of universities on the basis of their websites.The approach could be applied to other university systems.Originality/value:This work applies for the first time to university websites some recently introduced techniques for automatic knowledge extraction based on web scraping,optical character recognition and nontrivial text mining operations(Bruni&Bianchi,2020). | Gianpiero Bianchi Renato Bruni Cinzia Daraio Antonio Laureti Palma Giulio Perani Francesco Scalfati | 2020 | Journal of Data and Information Science2020，5，4： | 2 |
| 2 | A Tailor-made Data Quality Approach for Higher Educational Data显示文摘Purpose: This paper relates the definition of data quality procedures for knowledge organizations such as Higher Education Institutions. The main purpose is to present the flexible approach developed for monitoring the data quality of the European Tertiary Education Register(ETER) database, illustrating its functioning and highlighting the main challenges that still have to be faced in this domain.Design/methodology/approach: The proposed data quality methodology is based on two kinds of checks, one to assess the consistency of cross-sectional data and the other to evaluate the stability of multiannual data. This methodology has an operational and empirical orientation. This means that the proposed checks do not assume any theoretical distribution for the determination of the threshold parameters that identify potential outliers, inconsistencies, and errors in the data. Findings: We show that the proposed cross-sectional checks and multiannual checks are helpful to identify outliers, extreme observations and to detect ontological inconsistencies not described in the available meta-data. For this reason, they may be a useful complement to integrate the processing of the available information.Research limitations: The coverage of the study is limited to European Higher Education Institutions. The cross-sectional and multiannual checks are not yet completely integrated.Practical implications: The consideration of the quality of the available data and information is important to enhance data quality-aware empirical investigations, highlighting problems, and areas where to invest for improving the coverage and interoperability of data in future data collection initiatives.Originality/value: The data-driven quality checks proposed in this paper may be useful as a reference for building and monitoring the data quality of new databases or of existing databases available for other countries or systems characterized by high heterogeneity and complexity of the units of analysis without relying on pre-specified theoretical distributions. | Cinzia Daraio Renato Bruni Giuseppe Catalano Alessandro Daraio Giorgio Matteucci Monica Scannapieco Daniel Wagner-Schuster Benedetto Lepori | 2020 | Journal of Data and Information Science2020，5，3： | 2 |
| 3 | Significantly accelerated osteoblast cell growth on aligned TiO2 nanotubes 显示文摘 | Oh S Daraio C Chen LH | 2006 | J Biomed Mater Res A2006，78，1： | 1 |
| 4 | Significantly accelerated osteoblast cell growth on aligned TiO2 nanotubes 显示文摘 | Oh S Daraio C Chen L H Pisanic T R Finones R R Jin S | 2006 | J Biomed Mater Res A:2006，78，： | 1 |
| 5 | Optimal bandwidth selection for conditional efficiency measures : a data-driven approach显示文摘 | L B/'ldin C Daraio L Simar | 2010 | European Journal of Operational Research2010，，2： | 1 |
| 6 | Nouparametric frontier estimaticn : a robust approach 显示文摘 | C Daraio JP Florens L Simar | 2002 | Journal of Econometrics2002，，1： | 1 |
| 7 | Introducing environmental variables in nonparametric frontier models : a probabilistic approach 显示文摘 | C Daraio L Simar | 2005 | Journal of Productivity Analysis2005，，1： | 1 |
| 8 | Significantly accelerated osteoblast cell growth on aligned TiO2 nanotubes显示文摘 | Oh S Daraio C Chen LH | 2006 | J Biomed Mat Res Part A2006，78，1： | 1 |
| 9 | Conditional nonparametric frontier models for convex and nonconvex technologies: a unifying approach 显示文摘 | C Daraio L Simar | 2007 | Journal of Productivity Analysis2007，，1： | 1 |
| 10 | Significantly accelerated osteoblast cell growth on aligned TiO2 nanotubes显示文摘 | Oh S H Daraio C Chen L H | 2006 | J Biomed Mater Res Part A2006，78，1： | 1 |
| 11 | Significantly accelerated osteoblest cell growth on aligned TiO2 nanotubes显示文摘 | Oh S Daraio C Chert LH | 2006 | J Biomed Mater Res A2006，78，1： | 1 |
| 12 | Significantly acceleratedosteoblast cell growth on aligned TiO2 nanotubes显示文摘 | Oh S Daraio C Chen LH | 2006 | J Bi-omed Mater Res A2006，78，： | 1 |
| 13 | Liver expression of hepeidin and other iron genes in two mouse models of beta-thalassemia显示文摘 | De Franceschi L Daraio F Filippini A | 2006 | Haematologica2006，91，10： | 1 |
| 14 | Chitosan magnetic microspheres for technological applications: Preparation and characterization 显示文摘 | Podzus P E Daraio ME Jacobo S E | 2009 | Physica B2009，404，： | 1 |
| 15 | A robust nonparametric approach to evaluate and explain the performance of mutual funds显示文摘 | Daraio C Simar L | 2006 | European Journalof Operational Research2006，175，1： | 1 |
| 16 | Controlled growth of Y-junction nanotubes using Ti-Doped vapor catalyst 显示文摘 | Gothard N Daraio C Gaillard J | 2004 | Nano Lett2004，4，： | 1 |
| 17 | Ultrastructural examination of dentin using focused ion-beam cross-sectioning and transmission electron microscopy 显示文摘 | Nalla RK Porter AE Daraio C | 2005 | Micron2005，36，78： | 1 |
| 18 | Anomalous wave reflection at the interface of two strongly nonlinear granular me-dia显示文摘 | Nesterenko V F Daraio C Herbold E B | | 0，，15： | 1 |
| 19 | Copper adsorption on magnetite-loaded chitosan microspheres: A kinetic and equilibrium study 显示文摘 | PODZUS P E DEBANDI M V DARAIO M E | 2012 | Physica B: Condensed Matter2012，407，16： | 1 |
| 20 | Age Effects in Scientific Productivity 显示文摘 | Bonaccorsi A Daraio C | 2003 | Scientometrics2003，58，1： | 1 |
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