Automatic Structural Scene Digitalization

In this paper, we present an automatic system for the analysis and labeling of structural scenes, floor plan drawings in Computer-aided Design (CAD) format. The proposed system applies a fusion strategy to detect and recognize various components of CAD floor plans, such as walls, doors, windows and other ambiguous assets. Technically, a general rule-based filter parsing method is fist adopted to extract effective information from the original floor plan. Then, an image-processing based recovery method is employed to correct information extracted in the first step. Our proposed method is fully automatic and real-time. Such analysis system provides high accuracy and is also evaluated on a public website that, on average, archives more than ten thousands effective uses per day and reaches a relatively high satisfaction rate.Comment: paper submitted to PloS On

Realising intelligent virtual design

This paper presents a vision and focus for the CAD Centre research: the Intelligent Design Assistant (IDA). The vision is based upon the assumption that the human and computer can operate symbiotically, with the computer providing support for the human within the design process. Recently however the focus has been towards the development of integrated design platforms that provide general support irrespective of the domain, to a number of distributed collaborative designers. This is illustrated within the successfully completed Virtual Reality Ship (VRS) virtual platform, and the challenges are discussed further within the NECTISE, SAFEDOR and VIRTUE projects

Realising intelligent virtual design

This paper presents a vision and focus for the CAD Centre research: the Intelligent Design Assistant (IDA). The vision is based upon the assumption that the human and computer can operate symbiotically, with the computer providing support for the human within the design process. Recently however the focus has been towards the development of integrated design platforms that provide general support irrespective of the domain, to a number of distributed collaborative designers. This is illustrated within the successfully completed Virtual Reality Ship (VRS) virtual platform, and the challenges are discussed further within the NECTISE, SAFEDOR and VIRTUE projects

Don\u27t Bring a CAD File to a Gun Fight: A Technological Solution to the Legal and Practical Challenges of Enforcing ITAR on the Internet

This Essay begins by outlining Cody Wilson’s motivation to found his organization, Defense Distributed, and the organization’s progress toward its goals. Then, Part II provides a brief overview of the protracted legal battle between Wilson and the State Department over the right to publish Computer-Aided Design (CAD) files on the internet that enable the 3D printing of guns and lower receivers. Part III.A takes a brief look at whether these CAD files are rightly considered speech at all and, if so, what level of protection they might receive. Part III.B then addresses the problem of even asking whether the files are speech subject to regulation. Part III.B also highlights the similarities between regulating internet speech and regulating public-order crimes, focusing on the impact that enforcement problems in both areas can have on government credibility. It ultimately questions whether these legal battles provide any utility to society. In Part IV, this Essay argues that the State Department is utilizing old and incongruent regulations to enforce practically unenforceable laws to little or no effect, ultimately hurting the credibility of the State and martyring people like Wilson. This Essay advocates for a solution that focuses on 3D printer manufacturers as a control point for gun manufacturing. This solution avoids First Amendment issues and makes import and export control a physical reality, rather than an unbounded problem relegated to an open internet. This Essay looks beyond a judicial solution to practical solutions that stem the growth of in-house manufacturing of weapons

A collaborative platform for integrating and optimising Computational Fluid Dynamics analysis requests

A Virtual Integration Platform (VIP) is described which provides support for the integration of Computer-Aided Design (CAD) and Computational Fluid Dynamics (CFD) analysis tools into an environment that supports the use of these tools in a distributed collaborative manner. The VIP has evolved through previous EU research conducted within the VRShips-ROPAX 2000 (VRShips) project and the current version discussed here was developed predominantly within the VIRTUE project but also within the SAFEDOR project. The VIP is described with respect to the support it provides to designers and analysts in coordinating and optimising CFD analysis requests. Two case studies are provided that illustrate the application of the VIP within HSVA: the use of a panel code for the evaluation of geometry variations in order to improve propeller efficiency; and, the use of a dedicated maritime RANS code (FreSCo) to improve the wake distribution for the VIRTUE tanker. A discussion is included detailing the background, application and results from the use of the VIP within these two case studies as well as how the platform was of benefit during the development and a consideration of how it can benefit HSVA in the future

Limits on Fundamental Limits to Computation

An indispensable part of our lives, computing has also become essential to industries and governments. Steady improvements in computer hardware have been supported by periodic doubling of transistor densities in integrated circuits over the last fifty years. Such Moore scaling now requires increasingly heroic efforts, stimulating research in alternative hardware and stirring controversy. To help evaluate emerging technologies and enrich our understanding of integrated-circuit scaling, we review fundamental limits to computation: in manufacturing, energy, physical space, design and verification effort, and algorithms. To outline what is achievable in principle and in practice, we recall how some limits were circumvented, compare loose and tight limits. We also point out that engineering difficulties encountered by emerging technologies may indicate yet-unknown limits.Comment: 15 pages, 4 figures, 1 tabl

Don\u27t Bring a CAD File to a Gun Fight: A Technological Solution to the Legal and Practical Challenges of Enforcing ITAR on the Internet

This Essay begins by outlining Cody Wilson’s motivation to found his organization, Defense Distributed, and the organization’s progress toward its goals. Then, Part II provides a brief overview of the protracted legal battle between Wilson and the State Department over the right to publish Computer-Aided Design (CAD) files on the internet that enable the 3D printing of guns and lower receivers. Part III.A takes a brief look at whether these CAD files are rightly considered speech at all and, if so, what level of protection they might receive. Part III.B then addresses the problem of even asking whether the files are speech subject to regulation. Part III.B also highlights the similarities between regulating internet speech and regulating public-order crimes, focusing on the impact that enforcement problems in both areas can have on government credibility. It ultimately questions whether these legal battles provide any utility to society. In Part IV, this Essay argues that the State Department is utilizing old and incongruent regulations to enforce practically unenforceable laws to little or no effect, ultimately hurting the credibility of the State and martyring people like Wilson. This Essay advocates for a solution that focuses on 3D printer manufacturers as a control point for gun manufacturing. This solution avoids First Amendment issues and makes import and export control a physical reality, rather than an unbounded problem relegated to an open internet. This Essay looks beyond a judicial solution to practical solutions that stem the growth of in-house manufacturing of weapons

Towards an Interaction-based Integration of MKM Services into End-User Applications

The Semantic Alliance (SAlly) Framework, first presented at MKM 2012, allows integration of Mathematical Knowledge Management services into typical applications and end-user workflows. From an architecture allowing invasion of spreadsheet programs, it grew into a middle-ware connecting spreadsheet, CAD, text and image processing environments with MKM services. The architecture presented in the original paper proved to be quite resilient as it is still used today with only minor changes. This paper explores extensibility challenges we have encountered in the process of developing new services and maintaining the plugins invading end-user applications. After an analysis of the underlying problems, I present an augmented version of the SAlly architecture that addresses these issues and opens new opportunities for document type agnostic MKM services.Comment: 14 pages, 7 figure