Patrice Poyet

Free Thinker @Moorea · Earth-Sciences

The French Scientific and Technical Center for Building (CSTB) is involved in a very large number of programs, covering a wide range of scopes in the area of building, including technical, legal, social, and economic topics. The actions carried out encompass scientific research or technical missions, engineering, writing regulations, or state-of-th...

This article provides a review of two main research projects carried out at the French Scientific and Technical Center for Building (CSTB) in the area of artificial intelligence applied to building engineering. We first describe the software engineering techniques used to develop the computer environments. Then we present the architecture of an adv...

The system described in this paper is an expert system implemented on a PC. The aim was to develop efficient software, running on hardware available in the developing countries, with a high level of expertise in the field of village water-supply programs. The hardware constraints led us to develop a specialized and sophisticated software architectu...

Multivariate analysis has been recognized as a powerful tool in geochemical exploration, but special emphasis also has been given to the necessity to complete adequate preliminary investigation of the data before attempting to use sophisticated data processing and manipulations. The methodology presented here relies on extensive experience with mul...

The second edition, is available (regularly check for updates) ====================================================================== Poyet, P., 2022. The Rational Climate e-Book: Cooler is Riskier. The Extended 2nd Edition, October 5th, 174 Figures, 261 Equations, 2432 references, 655 pp., e-ISBN 978-99957-1-929-6 ================================...

We are two members of ResearchGate, and we interacted over some years on spaceflight, astronomy and their sometimes opposite objectives. An account was made of some of our conclusions and insights. Enjoy, Frank and Patrice

Text in French. This research presents how the geological map of the Republic of Malta came into being and provides some additional considerations on the paleo-geography and paleo-climatology of the Sicilian Channel area.

This Stub points to the Final First Edition of the The Rational Climate e-Book. I have been told by fellow researchers of problems citing my work and they requested a stable, Final First Edition so that they could quote page numbers. Here it is with a corresponding DOI. => Poyet, P., 2021. The Rational Climate e-Book: Cooler is Riskier. The Sorry...

This book is a must-have for any person interested in the history of what is called climate science and of the people who contributed to shaping the dominant ideas of our time. It also describes how the power struggles of various influential groups determined where we stand today. Though the book is focused on people who made things happen, it neve...

This spreadsheet contains all the double stars' orbits calculations of the referenced paper.

Many methods have been devised to compute orbits and they fall into two main categories:geometric approaches and analytic ones. Geometric methods deliver orbital elements less certain but are useful when the length of the arc observed so far is just more or less significant of the entire trajectory to come. More and more often though, analytical me...

More than two decades ago, object-oriented representation of AEC (architecture engineering and construction) projects started to offer the promise of seamless communication of semantic data models between computer-based systems used from the design stage to the operation of the facilities. BIM (building information modelling) emerged and appeared a...

Revisiting the Collision of D/1993 F2 (Shoemaker–Levy) with Jupiter 20 years later, it appeared impossible to get a good planisphere showing both the global appearance of Jupiter at that time and identifying the impacts which had been clearly visible to the observers and providing good system II estimates of their locations. As late July and early...

This notice describes the installation of two telescopes at the "Jas de Tardivy" Observatory in Caussols, one designed for the observation of planets and double stars under the Mosser Dome (6° 56' 19" E, 43° 44' 58" N, 1185m) and another for deep sky observing under the Cardoen Dome (6° 56' 16" E, 43° 44' 57" N, 1145m). Then we report in annex many...

This is the same presentation, but the pdf file is bigger as images used are of better resolution.

John P. Hussman owns a Master's Degree from Northwestern University (1985), and a PhD from the Leland Stanford Junior University (1992) and runs a series of investment funds, the flagship of them being the HSGFX, and offers an instructive weekly market comment on his web site hussmanfunds. In March 2012, John P. Hussman was looking to recruit an Ad...

Supernova 2008bk in NGC 7793 on 080830 & 080901 - T620 F/D=4,5 43°44'878 6°56'202 1145m - ST2KXCM+AO8 - 114mn - CCDOPS+CCDSHARP+IRIS+CS http://www.rochesterastronomy.org/sn2008/sn2008bk.html

COSMOS stands for Capital Oriented Systematic Management of Speculation. The key objective is to operate speculative hedge funds based on systematic trading and automated account management by expert systems while favouring protection and growth of capital. All words have their importance. Speculation means that the approach does not deal with any...

GB: This document in French describes the trading expert system developed by Patrice Poyet and Guillaume Besse to manage long / short portfolios including techniques for stock selection, risk management and global portfolio monitoring. FR: L'objet de ce document est de permettre aux utilisateurs de notre système expert boursier en ligne TexSOL®, de...

Ce document n'engage en rien le CSTB et ne reflète que les vues de son auteur principal. La mission logicielle telle qu’elle a été définie s’intéresse à un certain nombre de questions fondamentales qui ont toutes un impact sur la capacité du CSTB à agir en qualité de concepteur, développeur, producteur, éditeur et vendeur de logiciels. Bien que d...

Ce document s'intéresse à l'introduction puis à la possible généralisation de l'usage de la norme STEP dans le secteur du bâtiment, ce dans le contexte de l'avènement de nouvelles formes d'entreprises dites virtuelles, i.e. constituées de partenaires qui se regroupent pour des périodes déterminées correspondant à l'exécution de projets spécifiques.

One of the main objectives of the 6th Framework Programme (FP6) is to promote competitiveness of European industry. The sweeping changes associated with the emergence of the new knowledge-based economy present both significant opportunities and threats for European construction businesses, large and small. A number of medium to long term research i...

The major project goal of the ISTforCE project is to provide an open, human-centered Web-based collaboration environment which supports concurrent engineering while working on multiple projects simultaneously and offers easy access to specialized engineering services distributed over the Web. Normally, engineering applications are bought and then i...

This paper proposes a new approach to building a virtual enterprise (VE) software infrastructure that offers persistence, concurrent access, coherence and security on a distributed datastore based on the distributed shared-memory paradigm. The platform presented, persistent distributed store (PerDiS), is demonstrated with test applications that sho...

This document retraces the history of the review process of the Esprit project 25677, i.e. WIT, granted by the European Commission (EC) DGIII/F7 and INFSO C/3. As one of the reviewers appointed by the EC, I had the privilege to follow the development of the project and to formulate whenever and wherever possible recommendations to contribute to the...

This document retraces the history of the review process of the ProManual Project CP 96-0231. As one of the reviewers appointed by the European Commission, I had the privilege to follow the development of the project and to formulate whenever and wherever possible recommendations to contribute to the smooth and high quality execution of the project...

An OPERAtor training simulation system which is orders-of-magnitude cheaper than previous full-scope simulators. An overview of the OPERA project by Philip Dutton.

OPERA is a European Commission funded project that aims at developing new concepts and technologies based on highly modular, reusable and reconfigurable distributed real-time simulation software, in order to bring training simulators to the mainstream chemical industry. Amongst all components of OPERA, this paper deals mainly with the Hybrid Modell...

The INTEREST project, i.e. Esprit Proposal N°: 25584, stands for INTEGRATED ENVIRONMENT FOR DURABILITY & RELIABILITY DESIGN SUPPORT TOOLS. This project aims to develop a prototype integrated information system for the design and structural integrity analysis of metallic components, in a distributed business environment. The intention is to produce...

The PRODNET II - Esprit Project 26531 - dealt with Production Planning and Management in an Extended Enterprises. The PRODNET II project consortium set out to design and develop an open infrastructure to support virtual enterprises and with the final review, the consortium has demonstrated that all project objectives have been met. The reviewers wo...

In this paper, we propose a new approach to build Virtual Enterprise software infrastructure that offers persistence, concurrent access, coherence and security on a distributed-shared data store based on distributed-shared memory paradigm.

Networking technology, object-oriented distributed systems, workflow mechanisms and the WEB are now the obvious foundations for complex information management and concurrent engineering in the distributed virtual enterprises to come. Moreover, the combination of these rapidly evolving technologies are to be done in compliance with Product Data Tech...

This document is a public brochure that support the vision of the VEGA project and was made available in various European languages, including French as depicted in the document attached.

In this paper, we propose a new approach to build a Virtual Enterprise software infrastructure that offers persistence, concurrent access, coherence and security on a distributed-shared data store based on distributed-shared memory paradigm.

ISO 10303-22 is a part of the implementation methods of STEP with the official title Standard data access interface or simply SDAI. SDAI defines an abstract Application Programming Interface (API) to work on application data according to a given data models defined in EXPRESS. SDAI itself is defined independent of a particular programming language....

This presentation was made to the research strategic advisory group of the European commission to help define what future research strategies should be followed in the area of Integration in Manufacturing (IiM) and Construction and Engineering. The presentation focused on two aspects: research enablers and industry initiatives. Research enablers in...

OPERA is a European Commission funded project that aims at developing new concepts and technologies based on highly modular, reusable and reconfigurable distributed real-time simulation software, in order to bring training simulators to the mainstream chemical industry. Amongst all components of OPERA, this paper deals mainly with the Hybrid Modell...

The VEGA1 project aims to establish an information infrastructure which supports the technical and business operations of virtual or extended enterprises. GroupWare tools and distributed architectures are developed in compliance with product data technology standardization activities in line with the current specifications coming from the Object Ma...

The VEGA 1 project aims to establish an information infrastructure which supports the technical and business operations of virtual or extended enterprises. GroupWare tools and distributed architectures are developed in compliance with product data technology standardisation activities in line with the current specifications coming from the Object M...

OPERA is a European Commission funded project that aims at developing new concepts and technologies based on highly modular, reusable and reconfigurable distributed real-time simulation software, in order to bring training simulators to the mainstream chemical industry. Amongst all components of OPERA, this paper deals mainly with the Hybrid Modell...

The availability of a host of software systems for the architects, the engineers and more generally for the construction practitioners has changed the business practice and modified the construction processes. Most of the project data are stored in some electronic form and most of the activities from the brief down to facility management resort to...

OPERA is a European Commission funded project that aims at developing new concepts and technologies based on highly modular, reusable and reconfigurable distributed real-time simulation software, in order to bring training simulators to the mainstream chemical industry. Amongst all components of OPERA, this paper deals mainly with the Hybrid Modell...

As part of the VEGA project, the objective of the work package 4 is to specify and implement a Distributed Information Service (DIS). The specification and realisation of an information infrastructure for storage and remote access to electronic documents and information in the large will promote the integration of product related material such as e...

The VEGA1 project is a visionary project that aims to integrate business and technical processes, adopting the concept of virtual enterprises. The project has now been running for two years and will be completed in December 1998. It targets the Large Scale Engineering industry, which works on shorter term business relationships and supplier chains...

The paper intends to describe the architecture of the KEYSTONE (Knowledge Engineering Systematisation of Technical Enterprises memories) project which aims to contribute to create a market based on the systematisation of engineering knowledge in its various forms. KEYSTONE will not only rely on product models, but will also address other form of en...

Today, many Large Scale Engineering projects involve many different companies, located in remote sites and grouped together for just a single project. Global modern distributed Information Technology solutions typically could support these companies in their requirements and achievement of their tasks, thus leading to a so-called virtual enterprise...

As product development is becoming more and more complex, needing the participation of a lot of actors with their various skills, the elaboration of an infrastructure for the Virtual Enterprise (VE) has appeared mandatory. This infrastructure must rest on new emerging technology for product modelling (e.g. STEP), remote access to information throug...

Ce document a pour but de présenter en des termes compréhensibles par les professionnels de la construction (et donc utilisateurs des technologies concernées) les travaux conduits par l'Alliance Internationale pour l'Interopérabilité (IAI). l'IAI est une initiative regroupant des éditeurs de logiciels (Autodesk, Bentley, Nemetschek, IEZ, etc.), des...

Over the past two decades, the complexity of engineering projects has increased. In such a context, having access to the right information at the right time is often crucial. In the area of Information Management, numerous efforts have already been made under the auspices of various major institutes towards the elaboration of Information Standards....

This paper describes the architecture of the proposed SHINE (Shared product model views in an Integrated and distributed Environment) project which intends to develop methods and tools for modelling and selectively accessing multiple view subsets of product models in a distributed, data sharing environment. This objective is a longstanding requirem...

La représentation des données techniques, leur échange voire leur partage entre acteurs du processus de construction, tout au long du cycle de vie du bâtiment, constituent des objectifs importants pour tous les intervenants de l'acte de bâtir. L'avènement de logiciels de métiers sophistiqués a transformé dans une certaine mesure les pratiques profe...

La représentation des données techniques, leur échange voire leur partage entre acteurs du processus de construction, tout au long du cycle de vie du bâtiment, constituent des objectifs importants pour tous les intervenants de l'acte de bâtir. L'avènement de logiciels de métiers sophistiqués a transformé dans une certaine mesure les pratiques profe...

The current evolution in the Large Scale Engineering (LSE) industry, with a growing complexity of the projects and the parallel collaboration of various working teams located at distant sites, should lead in a very near future to a computer supported collaborative and flexible framework. Concurrent engineering will be based on the one hand on new e...

Facing an increasing competitive environment where reducing development costs and risks has become very crucial, companies have to renew their working habits. As a consequence, the development of collaboration agreements is strengthening. Whether it be at a national or international level, partnerships are emerging where production leads to localiz...

The VEGA 1 project aims to establish an information infrastructure which supports the technical and business operations of virtual or extended enterprises. GroupWare tools and distributed architectures are developed in compliance with product data technology standardisation activities in line with the current specifications coming from the Object M...

The purpose of the server is to recreate and store building objects, read in from physical file, according to a model-based building model for further processing. The first section is dedicated to the proposed architecture for the implementation of the building server model, whereas the second one gives a practical overview of the SDAI architecture...

This document has been created for use as guidance on the methods to be used in the definition ad specification of Industry Foundation Classes. This deliverable fulfills the requirements of work package 1.1 (Methodology) as defined in the version 1.5 project plan. References within this document to the masculine gender shall be taken to imply equal...

The GENIAL project aims at providing a Common Semantic Infrastructure to enable enterprises from different engineering sectors to combine internal knowledge with engineering knowledge accessed on-line and world-wide via the Global Engineering Network. In organizing the internal enterprise engineering knowledge database, and also in developing commo...

Task 1120: Distribution of Product Data Models - of the VEGA project has developed the deliverable D102 in two parts. The major goal of this task is to define potential elements and guidelines of a methodology for the distribution of STEP model instances. This methodology tries to take into account the different possible levels of granularity for t...

This is the "powerpoint" of an invited paper at the ISO TC184/SC4 STEP 10303 conference in Toronto presenting the strategies to implement various late binding (i.e. LISP and C based) of the Standard Data Access Interface - ISO 10303-22 - specification and to provide support for various knowledge-based capabilities, including model view mappers, con...

This is a "powerpoint" short introduction to the ISO/STEP SDAI (Standard Data Access Interface) to help the reader grasp the concepts that were referred to in the Toronto paper, i.e. SDAI (Standard Data Access Interface - ISO 10303-22) based modeling tools and platforms – Integration of KB systems.

The major goal of this task is to define a STEP-based methodology for describing the distribution of STEP model instances. This methodology is based on the specification of an object model for distribution, which is formalised using EXPRESS. This model provides a specification of an annotation mechanism (EXPRESS-D) to supply the underlying distribu...

L'objectif fondamental qui est poursuivi au travers de la modélisation des données techniques est de parvenir à une représentation explicite et formelle de la sémantique des informations que les logiciels techniques doivent manipuler pour rendre les divers services attendus par les utilisateurs qu'ils soient ingénieurs, techniciens, contrôleurs, ge...

STEP (ISO 10303) is an emerging standard, the first version of which was published as a series of parts in 1995 and is now established as a means for the effective communication of engineering and related data in many industry sectors. After an initial focus on the requirements of mechanical piece-parts manufacturing (aerospace, automotive), curren...

A previous research work had resulted in a knowledge-based system for the assessment of acoustics quality in building design. But it could neither communicate with other tools such as CAD systems nor import / export building project repository with a specific format. In order to tackle this shortcoming, we looked for a method which might provide su...

VEGA - Virtual Enterprises using Groupware tools and distributed Architectures proposal as written and submitted by Patrice Poyet on behalf of the partners. As stated in the report of the industrial advisory panels on the new R&D programme in information technologies, « Industry is becoming increasingly integrated at all levels -within departments...

This paper discusses potential implementations of Artificial Intelligence extensions in the context of STP architectures. STEP is now an emerging, powerful and industrial International Standard for the human and computer-interpretable representation and exchange of product data with an emphasis on engineering applications, and currently addresses a...

ATLAS (EP 7280) is a collaborative research project to improve the competitiveness of European Large Scale Engineering companies within the world market. The project focuses on the development of software Architectures and Tools based on non proprietary information exchange standards such as STEP and EDIFACT to improve business integration and co-o...

Numerous documents of diverse nature are involved in a construction project. Many of them such as technical specification documents or bills of quantities are generated by the engineering activities and often have a contractual importance. Others like building codes, examples of technical solutions, computation rules, define the legal context of a...

Origins of CBR (Case-Based Reasoning ) were motivated by a cognitive observation that humans often rely on past experience to solve new problems. For example, the architect in his design process remembers old similar projects and adapt them to realise a new project. Indeed, through the practise of “ real ” tasks for a long time, operators acquire a...

Over the past two decades, the complexity of engineering projects has increased markedly along with their scale, strengthening constraints (quality, duration, cost, regulations), number of actors involved, volume of information required and produced. In such a context, having access to the right information at the right time is often crucial. As a...

This part of ISO 10303 documents the Application Protocol for the exchange of product model data supporting the description of Heating, Ventilation and Air Conditioning systems (working draft status as of 2/05/1995). It addresses the systems which provide heating, ventilation and cooling to the spaces of a building. This AP covers the whole project...

ATLAS (EP 7280) is a collaborative research project to improve the competitiveness of European Large Scale Engineering companies within the world market. The project focuses on the development of software Architectures and Tools based on non proprietary information exchange standards such as STEP and EDIFACT to improve business integration and co-o...

ATLAS (EP 7280) is a collaborative research project to improve the competitiveness of European Large Scale Engineering companies within the world market. The project focuses on the development of software Architectures and Tools based on non proprietary information exchange standards such as STEP and EDIFACT to improve business integration and co-o...

The Chapter 13 describes the usage of computer and software systems in the perspective of integrated Construction Information Management.

The complexity of large scale engineering projects requires the involvement of many specialists with various expertise, working methods and in different locations. These specialists have different views on the product, describe it on different levels of detail, and gained experience in different previous projects. As a result, the creation and usag...

The ATLAS models describe some of the relevant entities required to share and exchange meaningful data between different CAxx systems used in large-scale engineering. The paper concentrates on three research issues: (1) how to incorporate typical project data, (2) how to satisfy the multi level communication requirements (between different sectors,...

A previous research work resulted in a knowledge-based system for the evaluation of acoustics in building design. But it could neither communicate with other tools such as CAD systems nor import / export building project representations in a specific format. In order to tackle this shortcoming, we are looking for a method which might provide such c...

ATLAS (EP 7280) is a collaborative research project to improve the competitiveness of European Large Scale Engineering companies within the world market. The project focuses on the development of software Architectures and Tools based on non proprietary information exchange standards such as STEP and EDIFACT to improve business integration and co-o...

The documentary context of a construction project is wide and encompasses many documents of diverse nature all along the various stages of a construction project. Thus, from the project brief until construction maintenance reports, we first propose in chapter 2 a rapid survey of these documents. Designing an Information System enabling the manageme...

This document (D302a) is the first step towards the development of data abstraction / generalization and view conversion mechanisms atop the ATLAS product models. The Technical Annex identifies the need for a mechanism supporting data-abstraction and data-generalization for the life-cycle integration of product/process information. It is also clear...

This document (D301a) contains the description of the first steps taken to fullfil the aims of the ATLAS projects with respect to the integration of knowledge based systems and describes the efforts made towards the implementation of knowledge based extensions. In fact, a complete software infrastructure for the integration of knowledge base system...

In this paper product models in applications and software interfaces will be discussed. First we will focus on the different kinds of models that have to be taken into account. It will be shown that both applications and interfaces are based on Product Models. How interfaces work and which information must be converted at which level will be presen...

STEP (Standard for the Exchange of Product Model Data), officially the ISO standard 10303, Product Data Representation and Exchange, is a series of international standards with the goal of defining data across the full engineering and manufacturing life cycle. Ten years after the inception of this international effort, i.e. in July 1984, the initia...

Jeff Wix was a dear friend of mine and he died on the 4th of July 2009 in Norway. I could not find the exact paper I am referring to here and that we wrote together with Frits Tolman and Bo-Christer Björk. To contribute to the legacy of Jeff's work I have added here a paper signed by Jeff with our colleague David Bloomfield from BRE, which describe...

Tendances futures en matière d'outils logiciels, vers davantage d’échanges et d’intégration pour une meilleure inter-opérabilité.

I have lost this document and I would be deeply indebted to anyone who could help me get it either in paper or better electronic format. It describes a comprehensive Le_Lisp based platform supporting the implementation of systems ensuring the modeling, the representation, the storage and exchange of Product Model Data (PMD) in native XPDI format or...

Foreword: The COMBINE project was led by Godfried Augenbroe https://www.researchgate.net/profile/Godfried_Augenbroe and aimed at the integration of various Design Tool Prototypes (DTPs) - mainly energy modeling computer codes to simulate the performance of a building - around an Integrated Data Model (IDM). As such the implementation described in t...

This paper aims first to clarify the relationships between data modeling and EDI and second to emphasize some of the current trends in the development and achievements of large modeling exercises applied to the construction sector.

Some areas, mainly located in the Southeastern part of France, are characterized by a high seismicity, and the French regulation is rapidly evolving to cope in a satisfactory way with such a major risk. Suitable construction rules to handle various seismic risk levels have been enacted since 1969, and recently simplified measures have been proposed...

The European Directory of Energy Efficient Building is a comprehensive European Guide to the manufacturers and suppliers of sustainable and energy efficient building materials and components and contains a wide range of articles on the various aspects of sustainable and energy efficient building. The section "Software Engineering for Energy Efficie...

Foreword: The COMBINE project aimed at the integration of various Design Tool Prototypes (DTPs) - mainly energy modeling computer codes to simulate the performance of a building - around an Integrated Data Model (IDM). As such the implementation described in this report is one of the first attempts ever made to implement a full scale semantic data...

This paper describes the usage of computer and software systems in the perspective of integrated Construction Information Management. Nous décrivons dans cet article un ensemble d'outils logiciels et de méthodes développés au CSTB qui permettent de fournir une aide, entre autres au concepteur mais aussi à d'autres acteurs, lors des différentes pha...

This volume 'Use ofMicrocomputers in Geology' is the sixth in the series Computer Applications in the Earth Sciences published by Plenum Press in New York. The series was started in 1969 to publish proceedings of important meetings on geomathematics and computer applications. The first two volumes recorded proceedings ofthe Colloquia (1969,1970) sp...

Artificial Intelligence Tools and Techniques for Water-Resources Assessment in Africa

This paper presents the development of a hydrogeological expert system able to handle the drilling location problem within the scope of village water-supply programs. This work is based on the experience the authors gained from thousands of drillings carried out in fifteen African countries. The cognitive model comes from the practical know-how acq...

This volume 'Use of Microcomputers in Geology' is the sixth in the series Computer Applications in the Earth Sciences published by Plenum Press in New York. The series was started in 1969 to publish proceedings of important meetings on geomathematics and computer applications. The first two volumes recorded proceedings of the Colloquia (1969,1970)...

The connection of various building performance evaluation tools in a collaborative way is an essential request to develop true CAD systems. It is a basic requirement for the future of integrated information systems for building projects, where data concerning multiple aspects of the project can be exchanged during the different design ste