8th MEPDaW Workshop at ISWC'22, October 23rd, 2022
The ISWC Organizing Committee and the Semantic Web Science Association (SWSA) have been closely monitoring the situation evolving around Covid-19. They have decided that ISWC 2022 together with its associated workshops will be fully remote events.
There is a vast and rapidly increasing quantity of scientific, corporate, government, and crowd-sourced data openly published on the Web. Open Data plays a catalyst role in the way structured information is exploited on a large scale. A traditional view of digitally preserving these datasets by “pickling and locking them away” for future use, like groceries, conflicts with their evolution. There are several approaches and frameworks (Linked Data Stack, PoolParty Suite, etc.) that manage a full life-cycle of the Data Web. More specifically, these solutions are expected to tackle major issues such as the synchronisation problem (monitoring changes), the curation problem (repairing data imperfections), the appraisal problem (assessing the quality of a dataset), the citation problem (how to cite a particular version of a dataset), the archiving problem (retrieving a specific version of a dataset), and the sustainability problem (preserving at scale, ensuring long-term access).
This workshop targets one of the emerging and fundamental problems in the Web, specifically the management and preservation of evolving knowledge graphs.
During the past seven years, the MEPDaW workshop series has been gathering researchers from the community around these challenges. So far the series successfully published more than 30 research efforts allowing more than 60 individual authors to present and share their ideas.
This workshop aims at addressing challenges and issues on managing Knowledge Graph evolution and preservation by providing a forum for researchers and practitioners to discuss, exchange and disseminate their ideas and work, to network and cross-fertilise new ideas.
Topics of interest include, but are not limited to themes related to the evolution and preservation of Knowledge Graphs:
We envision four types of submissions covering the entire workshop topics spectrum:
The proceedings of the workshops will be published in the CEUR-WS. Papers must be submitted in PDF according to the LLNCS format or in HTML. The PDF files must have all non-standard fonts embedded. Workshop submissions must be self-contained and in English.
All papers should be submitted to https://easychair.org/conferences/?conf=mepdaw2022.
All dates are given for 23:59 Anywhere on Earth.
MEPDaW will take place on Sunday 23rd of October between 10am and 2pm CEST. The WebEx link is https://tib-eu.webex.com/tib-eu-en/j.php?MTID=m1f46c4371cea3559036df707e8fa0a83 (Meeting number: 2734 460 6343 and Password: sMPgs8YnW38), provided by TIB. All hours are Central European Summer Time (CEST). Please, don't forget to register... ☺
Title: Querying the Web of data using sometimes available APIs
Professor Pieter Colpaert, IDLab, Ghent University - imec, Belgium
Abstract: Keeping public APIs up and running is an art, both from the fund-raising perspective as from the technical perspective. As a consequence, projects that are only funded for a short amount of time, will often turn off their APIs when the project ends, turning all dependent applications useless. Linked Data Event Streams (LDES) aims to make data publishers focus on their core task of making the dataset available for reuse, and advocates a well preservable (what we’ll call “materializable”) API structure. Projects can then republish the LDES in an API of choice. In this talk, we argue that these APIs should use hypermedia and announce their existence in a metadata catalogue. That way, query processors like Comunica can automatically use them when they are available, and ignore them when they aren’t, but always guarantee that the question can be answered until the end of time.
Title: Fostering a Lively and Tenacious Web of Data
Professor Aidan Hogan, DCC, University of Chile & IMFD, Santiago, Chile
Abstract: While the Web of Data continues to mature, it can still suffer from inertia (being slow to change) and impermanence (losing track of the past). Addressing these two flaws in a meaningful way requires additional work to better understand and harness dynamics on the Web of Data, not only in terms of data, but also in terms of queries, links, websites, definitions, demands, etc. In this talk, we highlight key challenges relating to dynamics on the Web of Data. We exemplify issues for the Web of Data that may arise if such challenges are left neglected: stale or forgotten data, incorrect results, unchecked vandalism, biased conclusions, etc. We discuss research lines to address such challenges relating to representations, modelling, prediction, revision, synchronisation and preservation. Within these research lines we identify key trade-offs, a better understanding of which may help us to transition towards a more lively and tenacious Web of Data that is better equipped to serve a changing world.
|At 10:00am||Academic Keynote Session 1|
|10:10am-10:50am||Querying the Web of
data using sometimes available APIs
By Professor Pieter Colpaert, IDLab, Ghent University - imec, Belgium
|At 11:00am||Paper Session I|
|11:00am-11:25am||Modelling & Analyzing
Changes within LD source data
Alex Randles and Declan O'Sullivan
|11:25am-11:50am||Event sourcing in
Wout Slabbinck, Ruben Dedecker, Sindhu Vasireddy, Ruben Verborgh and Pieter Colpaert
|At 12:00pm||Academic Keynote Session 2|
|12:00pm-12:50pm||Fostering a Lively and Tenacious Web of Data
By Professor Aidan Hogan, DCC, University of Chile & IMFD, Santiago, Chile
|At 12:50pm||Paper Session II|
|12:50pm-1:15pm||What does it mean when your
URIs are redirected? Examining identity and
redirection in the LOD cloud
Idries Nasim, Shuai Wang, Joe Raad, Peter Bloem and Frank van Harmelen
|1:15pm-1:40pm||Describing a network of live
datasets with the SDS vocabulary
Arthur Vercruysse, Sitt Min Oo and Pieter Colpaert
|At 1:40pm||Discussion & wrap-up|
|Natanael Arndt||Eccenca GmbH, Germany|
|David Chaves-Fraga||Universidad Politécnica de Madrid, Spain|
|Ioannis Chrysakis||FORTH-ICS, Greece; and Ghent University - IDLab – imec, Belgium|
|Pieter Colpaert||Ghent University, Belgium|
|Marcos Da Silveira||LIST, Luxembourg|
|Christophe Debruyne||Université de Liège, Belgium|
|Javier D. Fernández||F. Hoffmann-La Roche AG, Switzerland|
|Pavel Klinov||Stardog Union, Germany|
|Harshvardhan J. Pandit||ADAPT Centre - Trinity College Dublin, Ireland|
|George Papastefanatos||IMIS / RC "Athena", Greece|
|Iliana Petrova||Inria, France|
|Philipp D. Rohde||TIB Leibniz Information Centre for Science and Technology, Germany|
|Fatiha Saïs||LRI & Paris Saclay University, France|
|Ruben Taelman||Ghent University – imec, Belgium|
The main focus of the workshop has always been on the fundamental problem of managing the evolution and preservation of the Data Web.