Skip to main content

Home/ Sensorica Knowledge/ Group items tagged at

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
Tiberius Brastaviceanu

Private 'Distributed Ledgers' Miss the Point of a Blockchain | Bank Think - 0 views

www.americanbanker.com/...of-a-blockchain-1077435-1.html

paper blockchainaccess_project

shared by Tiberius Brastaviceanu on 27 May 16 - No Cached
  • a new buzzword making waves throughout the financial industry: “distributed ledger.”
  • Some say it's a tool to enable transparency by ensuring that all members of a group receive cryptographically secured messages about participants’ activities
  • Some are even bold enough to predict that distributed ledgers will end the madness of managing multiple database and reconciliation structures.
  • ...13 more annotations...
  • Distributed ledgers have primarily claimed to supplant the need for Bitcoin's mining process by introducing trust requirements among participants. These ledgers also promise users the immutability of Bitcoin without the need for expensive mining operations.
  • the technology powering distributed ledgers predates blockchains by well over 20 years.
  • Proponents of distributed ledgers argue that they can displace centralized providers such as SWIFT,
  • by moving money faster
  • There’s no doubt that blockchain technology will facilitate disruptive innovations in finance
  • But a world of private ledgers sounds eerily similar to a range of “private Internets.”
  • Blockchain technology is useful not because it offers efficiency in a world of message-passing but because it uses a complex process to settle value between untrusted parties.
  • But distributed ledgers do not offer users the ability to easily convert their tokens and messages into fungible units of value. Nor do distributed ledgers escrow value between parties that don't trust each other.
  • If a ledger is not a public resource, it will have the pressures incumbent to existing settlement systems plus the overhead of maintaining a shared database among competitors. What efficiency will remain thereafter remains dubious.
  • Permissioned Blockchains
  • their institutional users will probably find it expedient to hash their private-chain transactions and use those hashes to create bitcoin addresses and then send tiny fractions of a bitcoin to them to register their data at a location that cannot be hacked or changed.
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 27 May 16
       
      This is also a problem with access, if an access event needs to be recorded in a way that cannot be altered, in a data location that cannot be altered, it will need to be stored on a block chain. 
  • In other words, all private ledger/blockchains will lead to Bitcoin's Rome, driven there by its low cost and high public accountability.
  • Tiberius Brastaviceanu on 27 May 16
     
    the case against private chains.
Tiberius Brastaviceanu

Key management - Wikipedia, the free encyclopedia - 1 views

en.wikipedia.org/...Key_management

blockchainaccess_project wikipedia

shared by Tiberius Brastaviceanu on 09 Jun 16 - No Cached
  • Key management
  • his includes dealing with the generation, exchange, storage, use, and replacement of keys.
  • Key management concerns keys at the user level, either between users or systems.
  • ...4 more annotations...
  • This is in contrast to key scheduling; key scheduling typically refers to the internal handling of key material within the operation of a cipher.
  • it involves system policy, user training, organizational and departmental interactions, and coordination between all of these elements.
  • Public Key Infrastructure (PKI)
  • A public key infrastructure is a type of key management system that uses hierarchical digital certificates to provide authentication, and public keys to provide encryption. PKIs are used in World Wide Web traffic, commonly in the form of SSL and TLS.
Tiberius Brastaviceanu

docs.erisindustries.com/permissioned_blockchains.md at master · eris-ltd/docs... - 0 views

github.com/...permissioned_blockchains.md

blockchainaccess_project

shared by Tiberius Brastaviceanu on 09 Jun 16 - No Cached
  • Tiberius Brastaviceanu on 09 Jun 16
     
    "What is a Permissioned Blockchain Network?"
Francois Bergeron

A model for device development | Researchers at the Stanford University Program in Biod... - 2 views

medicaldesign.com/...model_device_development_0908

medical device development

shared by Francois Bergeron on 10 May 12 - No Cached
  • clinical need.
  • estimated market size and clinical impact associated with each.
  • prior art related
  • ...4 more annotations...
  • barriers to further development exist from an intellectual property perspective
  • Inventors must also determine if they are in a position to efficiently seize the market opportunity.
  • regulatory considerations, reimbursement strategies, intellectual property, and business development objectives. This leads to Phase I of the development model.
  • R&D in Phase II is responsible for generating early concepts. Brainstorming sessions are often held during this stage of development with members of R&D, marketing, and physician consultants. Computational analyses, such as stress and flow studies, are conducted to further understand the behavior of a proposed device. The team often develops a 3D CAD model of a proposed device
  • Francois Bergeron on 10 May 12
     
    medical device development steps
Tiberius Brastaviceanu

The commons law project: A vision of green governance - 0 views

blog.p2pfoundation.net/...26

commons law project governance legal David Bollier Michel Bauwens

shared by Tiberius Brastaviceanu on 27 May 12 - No Cached
  • “commons law” (not to be confused with common law)
  • Commons law consists of those social practices, cultural traditions and specific bodies of formal law that recognize the rights of commoners to manage their own resources
  • Ever since the rise of the nation-state and especially industrialized markets, however, commons law has been marginalized if not eclipsed by contemporary forms of market-based law
  • ...19 more annotations...
  • individual property rights and market exchange have been elevated over most everything else, and this has only eroded the rights of commoners,
  • reframe the very notion of “the economy” to incorporate non-market sharing and collaboration.
  • we had concluded that incremental efforts to expand human rights and environmental protection within the framework of the State/Market duopoly were simply not going to achieve much
  • the existing system of regulation and international treaties has been a horrendous failure over the past forty years. Neoliberal economics has corrupted and compromised law and regulation, slashing away at responsible stewardship of our shared inheritance while hastening a steady decline of the world’s ecosystems
  • We concluded that new forms of ecological governance that respect human rights, draw upon commons models and reframe our understanding of economic value, hold great promise
  • An economics and supporting civic polity that valorizes growth and material development as the precondition for virtually everything else is ultimately a dead end—literally.
  • Achieving a clean, healthy and ecologically balanced environment requires that we cultivate a practical governance paradigm based on, first, a logic of respect for nature, sufficiency, interdependence, shared responsibility and fairness among all human beings; and, second, an ethic of integrated global and local citizenship that insists upon transparency and accountability in all activities affecting the integrity of the environment.
  • We believe that commons- and rights-based ecological governance—green governance—can fulfill this logic and ethic. Properly done, it can move us beyond the neoliberal State and Market alliance—what we call the ‘State/Market’—which is chiefly responsible for the current, failed paradigm of ecological governance.
  • The basic problem is that the price system, seen as the ultimate governance mechanism of our polity, falls short in its ability to represent notions of value that are subtle, qualitative, long-term and complicated.
  • These are, however, precisely the attributes of natural systems.
  • Exchange value is the primary if not the exclusive concern.
  • anything that does not have a price and exists ‘outside’ the market is regarded (for the purposes of policy-making) as having subordinate or no value.
  • industry lobbies have captured if not corrupted the legislative process
  • regulation has become ever more insulated from citizen influence and accountability as scientific expertise and technical proceduralism have come to be more and more the exclusive determinants of who may credibly participate in the process
  • we have reached the limits of leadership and innovation within existing institutions and policy structures
  • it will not be an easy task to make the transition from State/Market ecological governance to commons- and rights-based ecological governance
  • It requires that we enlarge our understanding of ‘value’ in economic thought to account for nature and social well-being; that we expand our sense of human rights and how they can serve strategic as well as moral purposes; that we liberate ourselves from the limitations of State-centric models of legal process; and that we honor the power of non-market participation, local context and social diversity in structuring economic activity and addressing environmental problems.
  • articulate and foster a coherent new paradigm
  • deficiencies of centralized governments (corruption, lack of transparency, rigidity, a marginalized citizenry)
Tiberius Brastaviceanu

Robocut studio \\ Digital facrication for creatives - 1 views

robocutstudio.com

prototyping service local Montreal mechanics

shared by Tiberius Brastaviceanu on 28 Aug 12 - No Cached
  • Tiberius Brastaviceanu on 28 Aug 12
     
    right next to our lab at CTS
Francois Bergeron

NSERC - Collaborative Research and Development (CRD) Grants - 0 views

www.nserc-crsng.gc.ca/...CRD-RDC_eng.asp

collaborative research development grants

shared by Francois Bergeron on 18 Jan 12 - Cached
  • Objectives The Collaborative Research and Development (CRD) Grants are intended to give companies that operate from a Canadian base access to the unique knowledge, expertise, and educational resources available at Canadian postsecondary institutions and to train students in essential technical skills required by industry. The mutually beneficial collaborations are expected to result in industrial and/or economic benefits to Canada.
Tiberius Brastaviceanu

Work Party - mini oven joint type transducer - Picasa Web Albums - 1 views

picasaweb.google.com/...rtyMiniOvenJointTypeTransducer

work party work-party joint-type fabrication photos

shared by Tiberius Brastaviceanu on 16 Jul 12 - No Cached
  • Tiberius Brastaviceanu on 16 Jul 12
     
    Tibi and Francois working on the Joint-type transducer at Tibi's
Tiberius Brastaviceanu

Work Party Feb 28, 2012 - test transducer - Picasa Web Albums - 0 views

picasaweb.google.com/...rkPartyFeb282012TestTransducer

work party work-party mosquito_project electronics

shared by Tiberius Brastaviceanu on 16 Jul 12 - No Cached
  • Tiberius Brastaviceanu on 16 Jul 12
     
    Jonathan and Tibi, at Nori's house, testing the new Mosquito
Tiberius Brastaviceanu

What is an ontology and why we need it - 1 views

protege.stanford.edu/...ntology101-noy-mcguinness.html

protege ontologies infrastructure tutorial

shared by Tiberius Brastaviceanu on 29 Jul 12 - Cached
  • an ontology designer makes these decisions based on the structural properties of a class.
  • an ontology is a formal explicit description of concepts in a domain of discourse (classes (sometimes called concepts)), properties of each concept describing various features and attributes of the concept (slots (sometimes called roles or properties)), and restrictions on slots (facets (sometimes called role restrictions)). An ontology together with a set of individual instances of classes constitutes a knowledge base. In reality, there is a fine line where the ontology ends and the knowledge base begins.
  • Classes describe concepts in the domain
  • ...16 more annotations...
  • A class can have subclasses that represent concepts that are more specific than the superclass.
  • Here we discuss general issues to consider and offer one possible process for developing an ontology. We describe an iterative approach to ontology development: we start with a rough first pass at the ontology. We then revise and refine the evolving ontology and fill in the details. Along the way, we discuss the modeling decisions that a designer needs to make, as well as the pros, cons, and implications of different solutions.
  • In practical terms, developing an ontology includes: �         defining classes in the ontology, �         arranging the classes in a taxonomic (subclass–superclass) hierarchy, �         defining slots and describing allowed values for these slots, �         filling in the values for slots for instances.
  • We can then create a knowledge base by defining individual instances of these classes filling in specific slot value information and additional slot restrictions.
  • Slots describe properties of classes and instances:
  • some fundamental rules in ontology design
  • There is no one correct way to model a domain— there are always viable alternatives. The best solution almost always depends on the application that you have in mind and the extensions that you anticipate. 2)      Ontology development is necessarily an iterative process. 3)      Concepts in the ontology should be close to objects (physical or logical) and relationships in your domain of interest. These are most likely to be nouns (objects) or verbs (relationships) in sentences that describe your domain.
  • how detailed or general the ontology is going to be
  • what we are going to use the ontology for
  • concepts in the ontology must reflect this reality
  • We suggest starting the development of an ontology by defining its domain and scope. That is, answer several basic questions: �         What is the domain that the ontology will cover? �         For what  we are going to use the ontology? �         For what types of questions the information in the ontology should provide answers? �         Who will use and maintain the ontology?
  • plan to use
  • domain
  • If the people who will maintain the ontology describe the domain in a language that is different from the language of the ontology users, we may need to provide the mapping between the languages.
  • One of the ways to determine the scope of the ontology is to sketch a list of questions that a knowledge base based on the ontology should be able to answer, competency questions
  • These competency questions are just a sketch and do not need to be exhaustive.
Tiberius Brastaviceanu

1310nm 1550nm FP Coaxial Pigtail LD - 1 views

docs.google.com/...edit

supplies part parts laser system photonics Mosquito mosquito_project

shared by Tiberius Brastaviceanu on 18 Jun 12 - No Cached
  • Tiberius Brastaviceanu on 18 Jun 12
     
    This is a pigtail laser, they have at 1310 and 1550nm. Nice for our modular designs of the Mosquito.
Kurt Laitner

A tool to define the governance rules of your (open source) projects | Modeling Languages - 0 views

modeling-languages.com/-define-governance-oss-project

governance rule generator OSS FOSS

shared by Kurt Laitner on 26 Jan 14 - No Cached
  • We recenly asked you to explain us why you did not contribute (more) to open source projects
  • one of the reasons which hamper contributions is the lack of clear undesrtanding on how the project is governed, that is, who can contribute, how contributions are evaluated, who decides when they are integrated in the official release,…
  • Kurt Laitner on 26 Jan 14
     
    While I don't expect it to be this simple, this is something we need to sit down and do - my apologies as the governance discussion is in one of the 400 tabs I have open right now, I'll try to get at it this week. Note that the visual model is quite good. Something like this would be very useful. If we get too many decision types (the blue boxes) we might wish to use super-types for the visual model and layer it all the way down. The governance equation would tie into the 'participants' section. A very good jumping off point - of course the questionnaire doesn't really apply to OSH, nor do the decision types.
Tiberius Brastaviceanu

Digital Agenda for Europe - European Commission - 0 views

ec.europa.eu/...66731

agenda future europe digital policy Industry Canada

shared by Tiberius Brastaviceanu on 06 Feb 14 - No Cached
  • Open Innovation 2.0 Conference and The Dublin Innovation Declaration:
  • The Dublin Innovation Declaration was co-created at the Open Innovation 2.0 Conference
  • he challenges faced in Europe and beyond are too large to tackle in isolation and thus a new approach to innovation is required
  • ...3 more annotations...
  • create new shared value through innovation
  • creative destruction model where the failure of old approaches fuels the motivation for change and shapes the future
  • quadruple helix model of innovation where civil society joins with business, academia, and government sectors to drive changes far beyond the scope of what any one organization can do on their own. 
Tiberius Brastaviceanu

meeting Prof Packirisamy at Concordia - Google Drive - 0 views

docs.google.com/...edit

food_system

shared by Tiberius Brastaviceanu on 24 Jul 13 - No Cached
  • Tiberius Brastaviceanu on 24 Jul 13
     
    Meeting with prof Packirisamy from Concordia University
Tiberius Brastaviceanu

Photosynq - An Open Reseach Project - 0 views

photosynq.org

food_system collaboration possible collaborator Greg

shared by Tiberius Brastaviceanu on 15 Aug 13 - No Cached
  • anonymous on 17 Aug 13
     
    Been looking at this project too...seems like a good way that we might be able to get a better handle on how our jasmine rice grows over the 5-6 month growing season, how the plant performs in different soil types, the impact of increasingly variable rainfall on plant health, and perhaps being in a better position to be able to more accurately forecast yields and eventual seed quality.
Kurt Laitner

A breakthrough in algorithm development for network barter | Edgeryders - 0 views

edgeryders.eu/...rough-in-algorithm-development

resource-requirement matching algorithm software *net module barter

shared by Kurt Laitner on 28 Nov 13 - No Cached
  • Kurt Laitner on 28 Nov 13
     
    at some point, OVN-OS will need to address matching resources to requirements (people to jobs if you will) based on the value equations of the project and the priorities of the resource - this kind of math may become required
« First ‹ Previous 81 - 100 of 150 Next › Last »
Showing 20▼ items per page