Drawing Boundaries

In “On Drawing Lines on a Map” (1995), I suggested that the different ways we have of drawing lines on maps open up a new perspective on ontology, resting on a distinction between two sorts of boundaries: fiat and bona fide. “Fiat” means, roughly: human-demarcation-induced. “Bona fide” means, again roughly: a boundary constituted by some real physical discontinuity. I presented a general typology of boundaries based on this opposition and showed how it generates a corresponding typology of the different sorts of objects which boundaries determine or demarcate. In this paper, I describe how the theory of fiat boundaries has evolved since 1995, how it has been applied in areas such as property law and political geography, and how it is being used in contemporary work in formal and applied ontology, especially within the framework of Basic Formal Ontology

Drawing Mind Maps

{Excerpt} Mind maps are a visual means that represent, link, and arrange concepts, themes, or tasks, with connections usually extending radially from a central topic. They are used by individuals and groups (informally and intuitively) to generate, visualize, structure, and classify these. Intelligence is a potential, and thinking is the operating skill through which it acts upon experience. Outside highly technical matters, perception is the most important part of thinking. If most errors of thinking are errors of perception—that being colored by emotions and values—thinking as a skill can be improved by practice and education. Numerous straightforward yet powerful tools encourage creativity and flexibility, and help optimize different styles of reasoning (including analyzing, integrating, planning, and problem solving). They include APC, OPV, PMI, brainstorming, lateral thinking, and mind maps. After they are mastered, these tools can be applied explicitly. We usually write notes as sentences that we break into paragraphs, lists, or bullet points. A mind map is a circular, nonlinear way of organizing information: it shows the connections between a central topic and the relative importance of the concepts, themes, or tasks that one relates to it. It can be applied by individuals and groups to generate, visualize, structure, and classify these whenever clearer thinking and improved learning will enhance performance and effectiveness

Drawing Learning Charters

{Excerpt} Despite competing demands, modern organizations should not forget that learning is the best way to meet the challenges of the time. Learning charters demonstrate commitment: they area touchstone against which provision and practice can be tested and a waymark with which to guide, monitor, and evaluate progress. It is difficult to argue that what learning charters advocate is not worth striving for. Often, strategic reversals in organizational change are failures of execution. Poor communications explain much. That is because the real power of the vision that underpins change can only be unleashed if institutional commitment is verbalized to frame a desirable future; share core beliefs, common values, and understandings; and help motivate and coordinate the actions that drive transformation. To spark action, credible, focused, jargon-free, on time, liberal, face-to-face, and two-way communication in the right context is necessary. Effective visions cannot be imposed on people: they must be set in motion by way of persuasion. Progressively then, communication for change (i) raises awareness and informs stakeholders of vision, progress, and outcomes; (ii) edifies stakeholders regarding their active involvement in the change process and imparts skills, knowledge, and appreciation; and (iii) generates buy in and a sense of excitement about the transformation. Personnel who communicate well incorporate each day, at every conceivable opportunity, messages that update, educate,and commit. They preach a vision through conversation and storytelling. They continually reaffirm it. The best visions call on the past, relate to the present, and link to the future

Drawing OWL 2 ontologies with Eddy the editor

In this paper we introduce Eddy, a new open-source tool for the graphical editing of OWL~2 ontologies. Eddy is specifically designed for creating ontologies in Graphol, a completely visual ontology language that is equivalent to OWL~2. Thus, in Eddy ontologies are easily drawn as diagrams, rather than written as sets of formulas, as commonly happens in popular ontology design and engineering environments. This makes Eddy particularly suited for usage by people who are more familiar with diagramatic languages for conceptual modeling rather than with typical ontology formalisms, as is often required in non-academic and industrial contexts. Eddy provides intuitive functionalities for specifying Graphol diagrams, guarantees their syntactic correctness, and allows for exporting them in standard OWL 2 syntax. A user evaluation study we conducted shows that Eddy is perceived as an easy and intuitive tool for ontology specification

Redistricting: Drawing the Line

We develop methods to evaluate whether a political districting accurately represents the will of the people. To explore and showcase our ideas, we concentrate on the congressional districts for the U.S. House of representatives and use the state of North Carolina and its redistrictings since the 2010 census. Using a Monte Carlo algorithm, we randomly generate over 24,000 redistrictings that are non-partisan and adhere to criteria from proposed legislation. Applying historical voting data to these random redistrictings, we find that the number of democratic and republican representatives elected varies drastically depending on how districts are drawn. Some results are more common, and we gain a clear range of expected election outcomes. Using the statistics of our generated redistrictings, we critique the particular congressional districtings used in the 2012 and 2016 NC elections as well as a districting proposed by a bipartisan redistricting commission. We find that the 2012 and 2016 districtings are highly atypical and not representative of the will of the people. On the other hand, our results indicate that a plan produced by a bipartisan panel of retired judges is highly typical and representative. Since our analyses are based on an ensemble of reasonable redistrictings of North Carolina, they provide a baseline for a given election which incorporates the geometry of the state's population distribution.Comment: Corrected typos from previous version; added new plots showing stability; corrected error in EG plots and analysi

Inscriptions: drawing, making, thinking

‘Inscription: drawing, making, thinking’ brought together the work of David Conneam, Philip Eglin and Charlotte Hodes, it included drawings, ceramics, moving image and evidence of their working process. The exhibition was curated as part of the Jerwood Visual Arts Encounters series

Dynamic Euler Diagram Drawing

In this paper we describe a method to lay out a graph enhanced Euler diagram so that it looks similar to a previously drawn graph enhanced Euler diagram. This task is non-trivial when the underlying structures of the diagrams differ. In particular, if a structural change is made to an existing drawn diagram, our work enables the presentation of the new diagram with minor disruption to the user's mental map. As the new diagram can be generated from an abstract representation, its initial embedding may be very different from that of the original. We have developed comparison measures for Euler diagrams, integrated into a multicriteria optimizer, and applied a force model for associated graphs that attempts to move nodes towards their positions in the original layout. To further enhance the usability of the system, the transition between diagrams can be animated