Papers by Pavlos Chatzigrigoriou

Lecture Notes in Computer Science, 2016
When a long-term research finishes, there is always a question about implementation and further d... more When a long-term research finishes, there is always a question about implementation and further development. In the case of HER.M.e.S, the Digital Heritage Management System of the Historic City of Hermoupolis, in a Greek Aegean Island, Syros, it was also a question about raising awareness. The research proved that 2.4 historic buildings collapse every year, as a result of abandonment. This phenomenon was intensified by the severe economic crisis in Greece. The research proposed an optimal conservation plan for the city, after carefully evaluating variables through a multi-criteria model using GIS and an innovating point system. But in order to apply this plan, we need to be able to update the data, as buildings are constantly changing through time. Updating a database with more than 1000 historic buildings, with no funds, is a huge challenge. Soon, we decided that the only way to go is to use a crowdsourcing method. Developing a digital heritage collection portal, using free open source software and serving crucial data for every building, was the answer to our problem. We asked citizens to check the data base, report mistakes, updates, stories, photographs and use the portal to learn about their city. This effort led us to a big digitization project, with up to 1290 historic buildings, 14.400 geo-tagged photos and more than 15.000 fields of information. The project HERMeS, as a conservation plan and a heritage digitization project won the 2015 European Union Europa Nostra Award in Category Research & Digitalisation.

The purpose of the present research is to articulate a strategic approach for the protection, pre... more The purpose of the present research is to articulate a strategic approach for the protection, preservation and restoration of a historic building stock. Within this frame, a multi-variable model has been developed for the assessment and monitoring of historic building's pathology and architectural quality. The system is based on two pillars: the Database System (DBMS “Hermes”) and the Geographical Information System (GIS “Hermes”), which are interconnected. The first pillar addressed the concern and for reliability and objectivity of the data, with the development of two specific internal control procedures. The second pillar (GIS “Hermes”) enables spatial search across historic buildings. In this way, one can use different variables and criteria for composing complex questions. An important question is the ranking of dangerous buildings, reliably and objectively, in order to make the necessary lifesaving innervations. This multi criteria decision-making tool depends on the weight of different variables. After identifying these variables, a team of expert was asked to rank them with an online questionnaire. The resulting ranking was used to weight and assess the risk of the dangerous buildings.

Proceedings of SPIE, Aug 12, 2016
Because of the severe economic crisis, Greek historic heritage is in risk. Historic cities as Her... more Because of the severe economic crisis, Greek historic heritage is in risk. Historic cities as Hermoupolis, were dealing with this risk years before the crisis. The current situation needed drastic action, with innovative low cost ideas. The historic building stock in Hermoupolis counts more than 1.200 buildings. By recording the pathology, the GIS and the D.B.M.S "HERMeS" with the appropriate algorithms identify the historic buildings in risk. In the first application of the system those buildings were 160, with a rate of 2.4 historic buildings collapse every year. The prioritization of interventions in these buildings is critical, as it is not possible to lower the collapsing risk simultaneously in 160 buildings, but neither the interventions can be judged solely by the reactions of local residents. Bearing in mind the fact that one, given the current economic conditions, has to make best use of the funds for this purpose, it is proved that the relevant decision requires multi criteria analysis method of prioritizing interventions. Specifically, the analysis takes into account the risk of collapse of each building, but in connection with a series of other variables, such as the role of building in Hermoupolis, the position in the city, the influence in other areas of interest, the social impact etc. The final result is a catalogue with historic buildings and a point system, which reflects the risk of loosing the building. The point system leads to a Conservation Plan for the city of Hermoupolis, giving the hierarchy of interventions that must be done in order to save the maximum architecture heritage with the minimum funds, postponing the risk of collapsing. In 2015, EU and EUROPA-NOSTRA awarded the above-mentioned project in the category of “Research and Digitization”.
Η παρούσα έρευνα έχει ως στόχο και ταυτόχρονα ως αποτέλεσμα την ανάπτυξη ενός πολυκριτηριακού συσ... more Η παρούσα έρευνα έχει ως στόχο και ταυτόχρονα ως αποτέλεσμα την ανάπτυξη ενός πολυκριτηριακού συστήματος διαχείρισης των ιστορικών κτηρίων και συνόλων με εφαρμογή στο νεοκλασικό ιστορικό τόπο της Ερμούπολης. […]

Heritage, 2021
The research project “Mouseion Topos” (in English: “Museums Place”), focusing on traditional loca... more The research project “Mouseion Topos” (in English: “Museums Place”), focusing on traditional local settlements situated at three Aegean islands, aims to contribute to the promotion of their physiognomy and intangible cultural heritage by connecting regional museums with each settlement. The present article, part of the project’s initial phase, via the application of the HERMeS methodology (version 1 and 2) and the development of the associate digital documentation tools, identifies and records the architectural and urban elements influenced by each settlement’s intangible cultural heritage as listed by UNESCO and presented by their corresponding museums. The research findings revealed connections between the museums’ content and the documented tangible heritage based on the formulated conceptual and heatmaps, which can be used at the early design stages of the current project’s interactive applications, especially in mobile tours. Finally, the research findings verify that despite t...
CHI Greece 2021: 1st International Conference of the ACM Greek SIGCHI Chapter
2021 IEEE Conference on Games (CoG)

Digital heritage data are now more accessible through crowdsourcing platforms, social media and b... more Digital heritage data are now more accessible through crowdsourcing platforms, social media and blogs. At the same time, evolving technology on 3D modelling, laser scanning and 3D reconstruction is constantly upgrading and multiplying the information that we can use from heritage digitalisation. The question of reusing the information in different aspects rises. Educators and students are potential users of the digital content; developing for them an adaptable environment for applications and services is our challenge. One of the main objective of the EU Europeana Space project is the development of a holistic approach for educating people (grown ups and kids) on Monuments that are listed at UNESCO world heritage list, in Cyprus. The challenge was the use of Europeana Data (Pictures and the 3D objects) in a way that the information on the platform would be comprehensible by the users. Most of the data have little metadata information and they lack history and cultural value descript...
Mixed Reality and Gamification for Cultural Heritage

MDPI Digital Applications in Archaeology and Cultural Heritage, 2021
The research project “Mouseion Topos” (in English: “Museums Place”), focusing on traditional loca... more The research project “Mouseion Topos” (in English: “Museums Place”), focusing on traditional local settlements situated at three Aegean islands, aims to contribute to the promotion of their physiognomy and intangible cultural heritage by connecting regional museums with each
settlement. The present article, part of the project’s initial phase, via the application of the HERMeS methodology (version 1 and 2) and the development of the associate digital documentation tools,
identifies and records the architectural and urban elements influenced by each settlement’s intangible cultural heritage as listed by UNESCO and presented by their corresponding museums. The research
findings revealed connections between the museums’ content and the documented tangible heritage based on the formulated conceptual and heatmaps, which can be used at the early design stages
of the current project’s interactive applications, especially in mobile tours. Finally, the research findings verify that despite the limitations and issues for further research, the introduced HERMeS methodology and digital tools are reliable and contribute to the respective field’s theory. The paper also provides beneficial deliberation on digital architectural heritage documentation methods and interactive technologies, highlighting points and areas of interest that the tourist industry, technology designers, museum curators, and architects can employ.

Heritage
Interactive installations in museums usually adopt hybrid technologies that combine physical elem... more Interactive installations in museums usually adopt hybrid technologies that combine physical elements with digital content, and studies so far show that this approach enhances the interest and engagement of visitors compared to non-interactive media or purely digital environments. However, the design of such systems is complicated, as it involves a large number of stakeholders and specialists. Additionally, the functional components need to be carefully orchestrated to deliver a rich user experience. Thus, there is a need for further research on tools and methods that facilitate the process. In this paper we present the design and development of a mixed reality installation for the Museum of Marble Crafts in Tinos island in Greece, which places visitors in the role of the crane operator and they have to complete challenges in a gamified version of the old quarry. The system lets users operate a tangible controller and their actions are executed by digital workers in a rich 3D enviro...
Lecture Notes in Computer Science, 2016
Lecture Notes in Computer Science, 2016
Lecture Notes in Computer Science, 2016
Lecture Notes in Computer Science, 2016

Heritage
Interactive installations in museums usually adopt hybrid technologies that combine physical elem... more Interactive installations in museums usually adopt hybrid technologies that combine physical elements with digital content, and studies so far show that this approach enhances the interest and engagement of visitors compared to non-interactive media or purely digital environments. However, the design of such systems is complicated, as it involves a large number of stakeholders and specialists. Additionally, the functional components need to be carefully orchestrated to deliver a rich user experience. Thus, there is a need for further research on tools and methods that facilitate the process. In this paper we present the design and development of a mixed reality installation for the Museum of Marble Crafts in Tinos island in Greece, which places visitors in the role of the crane operator and they have to complete challenges in a gamified version of the old quarry. The system lets users operate a tangible controller and their actions are executed by digital workers in a rich 3D enviro...

ΣΥΡΙΑΝΑ ΓΡΑΜΜΑΤΑ, 2019
Η μελέτη ενός Τόπου, ειδικά για τον εξειδικευμένο ερευνητή, μπορεί να είναι ανεξάντλητη, καθώς εξ... more Η μελέτη ενός Τόπου, ειδικά για τον εξειδικευμένο ερευνητή, μπορεί να είναι ανεξάντλητη, καθώς εξαρτάται από το πλήθος των στοιχείων και το βάθος της μελέτης που επιθυμεί κάποιος να ερευνήσει. Βιβλία, μαρτυρίες, χάρτες, ιστορικά αρχεία, ληξιαρχεία, φωτογραφίες, λογοτεχνικές αναφορές, περιοδικά, εφημερίδες και πλήθος άλλων στοιχείων μπορούν να οδηγήσουν σε ατέρμονα λαβύρινθο τη σκέψη και την έρευνα του μελετητή. Ειδικά για την Ερμούπολη τα κείμενα που έχουν γραφτεί για αυτήν είναι ατελείωτα, όπως άλλωστε χαρακτηριστικά επισημαίνει στο βιβλίο του ο Μάνος Ελευθερίου με τίτλο “Ερμούπολη, μια πόλη στη λογοτεχνία” (Ελευθερίου, 2004). Η Ερμούπολη είναι από τις λίγες πόλεις στην Ελλάδα που κίνησε τόσο πολύ το ενδιαφέρον των περιηγητών, των συγγραφέων, των καλλιτεχνών και γενικά των ανθρώπων της τέχνης και του πολιτισμού, από τη δημιουργία της μέχρι σήμερα. Στην παρούσα έρευνα θεωρείται σημαντικό να αναδειχθούν όλα εκείνα τα στοιχεία της πρώτης φάσης δημιουργίας της Ερμούπολης, που της δίνουν τον μοναδικό της χαρακτήρα και τη φυσιογνωμία της, ως στοιχεία πολιτιστικής κληρονομιάς, τα οποία είναι απαραίτητο να διατηρηθούν σήμερα και να παραδοθούν ανέπαφα στις επόμενες γενιές. Η ανάλυση αυτή, περιορίζεται υποχρεωτικά προκειμένου να μη χαθεί ο αναγνώστης και ο ερευνητής στο ατελείωτο υλικό που συνοδεύει αυτή την πόλη, ταυτόχρονα όμως να φωτιστεί κάθε πτυχή της που συνδέεται με τα μοναδικά κτήριά της και την πολεοδομική της ταυτότητα.

ΙΝΣΤΙΤΟΥΤΟ ΣΥΡΟΥ – 9Ο ΔΙΑΠΑΝΕΠΙΣΤΗΜΙΑΚΟ ΣΕΜΙΝΑΡΙΟ ΠΟΛΙΤΙΣΤΙΚΗΣ ΚΛΗΡΟΝΟΜΙΑΣ, 2019
Με δεδομένο το σημαντικό πολιτιστικό απόθεμα της χώρας μας, οι ψηφιακές εφαρμογές διαδραστικών τε... more Με δεδομένο το σημαντικό πολιτιστικό απόθεμα της χώρας μας, οι ψηφιακές εφαρμογές διαδραστικών τεχνολογιών για την ανάδειξη της πολιτιστικής κληρονομιάς είναι ανεξάντλη-τες. Στο έργο «Μουσείων Τόπος», το Εργαστήριο Σχεδιασμού Διαδραστικών Εφαρμογών του Πανεπιστημίου Αιγαίου (Σύρος), σε συνεργασία με το Πολιτιστικό Ίδρυμα της τράπεζας Πειραιώς (ΠΙΟΠ) και δύο σημαντικές εταιρείες τεχνολογίας (GET & DotSoft) διερευνά τις πιθανές τεχνολογικές εφαρμογές που θα μπορούσαν να αναπτυχθούν με στόχο την ψηφιακή διασύνδεση μουσείων και τόπων. Στην παρούσα δημοσίευση επιδιώκουμε να τεκμηριώσουμε την πρώτη φάση της έρευνας, που ακολουθείται από καταγραφή τριών σημαντικών παραδο-σιακών οικισμών (Πύργος της Τήνου, Αγία Παρασκευή Λέσβου, και Ολύμποι Χίου) με τη μεθοδολογία “HERMeS” και την ανάπτυξη αντίστοιχης εφαρμογής ψηφιακής καταγραφής. Στόχος είναι να αναγνωριστούν τα ιδιαίτερα αρχιτεκτονικά και πολεοδομικά στοιχεία τους που επηρέασαν την άυλη πολιτιστική τους κληρονομιά, όπως αυτή καταγράφεται μέσα από τρία (αντίστοιχα) Μουσεία του ΠΙΟΠ: της μαρμαροτεχνίας, της ελαιουργίας και της μαστίχας. Το έργο αποσκοπεί στη σύνδεση των μουσείων του ΠΙΟΠ με τους οικισμούς και τα νησιά μέσα από διαδραστικά συστήματα παιχνιδοποίησης που θα αξιοποιούν τεχνολογίες φορητών τηλεφώνων και ανίχνευσης κινήσεων χρηστών εστιάζοντας στην ανάδειξη της αρχιτεκτονικής κληρονομιάς και της άυλης παράδοσης δεξιοτεχνίας (craftmanship) αντίστοιχα. Η σύνδεση αυτή αναμένεται να έχει σημαντικά οφέλη για τις τοπικές κοινωνίες, τον τουρισμό, την εκπαίδευση και την αειφόρο πολιτιστική ανάπτυξη. Με το πέρας του έργου, το κάθε μουσείο θα μετατραπεί σε κύτταρο καινοτομίας πλήρως ενταγμένο στον τόπο του. Σημειώνεται ότι τόσο το ΠΙΟΠ όσο και το HERMeS έχουν λάβει το Βραβείο της Ευρωπαϊκής Ένωσης Πολιτιστικής Κληρονομιάς - Europa Nostra Award.
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Papers by Pavlos Chatzigrigoriou
settlement. The present article, part of the project’s initial phase, via the application of the HERMeS methodology (version 1 and 2) and the development of the associate digital documentation tools,
identifies and records the architectural and urban elements influenced by each settlement’s intangible cultural heritage as listed by UNESCO and presented by their corresponding museums. The research
findings revealed connections between the museums’ content and the documented tangible heritage based on the formulated conceptual and heatmaps, which can be used at the early design stages
of the current project’s interactive applications, especially in mobile tours. Finally, the research findings verify that despite the limitations and issues for further research, the introduced HERMeS methodology and digital tools are reliable and contribute to the respective field’s theory. The paper also provides beneficial deliberation on digital architectural heritage documentation methods and interactive technologies, highlighting points and areas of interest that the tourist industry, technology designers, museum curators, and architects can employ.
settlement. The present article, part of the project’s initial phase, via the application of the HERMeS methodology (version 1 and 2) and the development of the associate digital documentation tools,
identifies and records the architectural and urban elements influenced by each settlement’s intangible cultural heritage as listed by UNESCO and presented by their corresponding museums. The research
findings revealed connections between the museums’ content and the documented tangible heritage based on the formulated conceptual and heatmaps, which can be used at the early design stages
of the current project’s interactive applications, especially in mobile tours. Finally, the research findings verify that despite the limitations and issues for further research, the introduced HERMeS methodology and digital tools are reliable and contribute to the respective field’s theory. The paper also provides beneficial deliberation on digital architectural heritage documentation methods and interactive technologies, highlighting points and areas of interest that the tourist industry, technology designers, museum curators, and architects can employ.