Skip to main content

Home/ Sensorica Knowledge/ Group items tagged feedback

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
Tiberius Brastaviceanu

Work Party 18 April 2012 - optical fiber coating - Picasa Web Albums - 0 views

picasaweb.google.com/...18April2012OpticalFiberCoating

work-party work party coating_project photos

shared by Tiberius Brastaviceanu on 16 Jul 12 - No Cached
  • Tiberius Brastaviceanu on 16 Jul 12
     
    Tibi and Jonathan, fiber coating with live feedback
Tiberius Brastaviceanu

Feedback Form (Responses) - Google Sheets - 0 views

docs.google.com/...ccc

3D_course

shared by Tiberius Brastaviceanu on 11 Jun 14 - No Cached
Tiberius Brastaviceanu

Tibi's CASZH T10 quad core MTK6589 GPS 3G WCDMA/2G GSM SIM Card Slot Phone call Androi... - 0 views

www.aliexpress.com/...938409451.html

tablet

shared by Tiberius Brastaviceanu on 09 Jun 13 - No Cached
  • Tiberius Brastaviceanu on 09 Jun 13
     
    This is the one that I ordered, waiting to receive it to provide feedback. quad core MTK6589 GPS 3G WCDMA/2G GSM SIM Card Slot Phone call Android 4.2 IPS 10.1 inch Capacitive Tablet PC-in Tablet PROBLEMS I had some problems with the power jack, it breaks very easily. I repaired it myself. After, the screen started to have problems, insensitive stripes. After, I dropped the tablet and it chipped the screen a bit and the screen became totally unresponsive. POSITIVE POINTS light weight, works well, battery/autonomy OK NEGATIVE COMMENTS No flash for pictures/videos No magnetic compass, no orientation sensors, but it has an accelerometer.
sebastianklemm

Fresh Ventures Studio - 0 views

www.freshventures.eu

food funding grants greens_for_good

shared by sebastianklemm on 26 Jun 21 - No Cached
  • sebastianklemm on 26 Jun 21
     
    "Fresh Ventures is a venture building program and startup studio based in The Netherlands. We co-found companies with experienced professionals and entrepreneurs to address systemic challenges in the food system." (Direct feedback upon inquiry: "At Fresh we're focusing on pre-idea and pre-team, so the maturity of this solution is already too progressed for us, but it's exciting to see the development.")
Tiberius Brastaviceanu

Beyond Blockchain: Simple Scalable Cryptocurrencies - The World of Deep Wealth - Medium - 0 views

medium.com/...-cryptocurrencies-1eb7aebac6ae

blockchainaccess_project paper Holochain Arthur Brock

shared by Tiberius Brastaviceanu on 01 Jun 16 - No Cached
  • I clarify the core elements of cryptocurrency and outline a different approach to designing such currencies rooted in biomimicry
  • This post outlines a completely different strategy for implementing cryptocurrencies with completely distributed chains
  • Rather than trying to make one global, anonymous, digital cash
  • ...95 more annotations...
  • we are interested in the resilience that comes from building a rich ecosystem of interoperable currencies
  • What are the core elements of a modern cryptocurrency?
  • Digital
  • Holdings are electronic and only exist and operate by virtue of a community’s agreement about how to interpret digital bits according to rules about operation and accounting of the currency.
  • Trustless
  • don’t have to trust a 3rd party central authority
  • Decentralized
  • Specifically, access, issuance, transaction accounting, rules & policies, should be collectively visible, known, and held.
  • Cryptographic
  • This cryptographic structure is used to enable a variety of people to host the data without being able to alter it.
  • Identity
  • there must be a way to associate these bits with some kind of account, wallet, owner, or agent who can use them
  • Other things that many take for granted in blockchains may not be core but subject to decisions in design and implementation, so they can vary between implementations
  • It does not have to be stored in a synchronized global ledger
  • does not have to be money. It may be a reputation currency, or data used for identity, or naming, etc
  • Its units do not have to be cryptographic tokens or coins
  • It does not have to protect the anonymity of users, although it may
  • if you think currency is only money, and that money must be artificially scarce
  • Then you must tackle the problem of always tracking which coins exist, and which have been spent. That is one approach — the one blockchain takes.
  • You might optimize for anonymity if you think of cryptocurrency as a tool to escape governments, regulations, and taxes.
  • if you want to establish and manage membership in new kinds of commons, then identity and accountability for actions may turn out to be necessary ingredients instead of anonymity.
  • In the case of the MetaCurrency Project, we are trying to support many use cases by building tools to enable a rich ecosystem of communities and current-sees (many are non-monetary) to enhance collective intelligence at all scales.
  • Managing consensus about a shared reality is a central challenge at the heart of all distributed computing solutions.
  • If we want to democratize money by having cryptocurrencies become a significant and viable means of transacting on a daily basis, I believe we need fundamentally more scalable approaches that don’t require expensive, dedicated hardware just to participate.
  • We should not need system wide consensus for two people to do a transaction in a cryptocurrency
  • Blockchain is about managing a consensus about what was “said.” Ceptr is about distributing a consensus about how to “speak.”
  • how nature gets the job done in massively scalable systems which require coordination and consistency
  • Replicate the same processes across all nodes
  • Empower every node with full agency
  • Hold this transformed state locally and reliably
  • Establish protocols for interaction
  • Each speaker of a language carries the processes to understand sentences they hear, and generate sentences they need
  • we certainly don’t carry some kind of global ledger of everything that’s ever been said, or require consensus about what has been said
  • Language IS a communication protocol we learn by emulating the processes of usage.
  • Dictionaries try to catch up when the usage
  • there is certainly no global ledger with consensus about the state of trillions of cells. Yet, from a single zygote’s copy of DNA, our cells coordinate in a highly decentralized manner, on scales of trillions, and without the latency or bottlenecks of central control.
  • Imagine something along the lines of a Java Virtual Machine connected to a distributed version of Github
  • Every time this JVM runs a program it confirms the hash of the code it is about to execute with the hash signed into the code repository by its developers
  • This allows each node that intends to be honest to be sure that they’re running the same processes as everyone else. So when two parties want to do a transaction, and each can have confidence their own code, and the results that your code produces
  • Then you treat it as authoritative and commit it to your local cryptographically self-validating data store
  • Allowing each node to treat itself as a full authority to process transactions (or interactions via shared protocols) is exactly how you empower each node with full agency. Each node runs its copy of the signed program/processes on its own virtual machine, taking the transaction request combined with the transaction chains of the parties to the transaction. Each node can confirm their counterparty’s integrity by replaying their transactions to produce their current state, while confirming signatures and integrity of the chain
  • If both nodes are in an appropriate state which allows the current transaction, then they countersign the transaction and append to their respective chains. When you encounter a corrupted or dishonest node (as evidenced by a breach of integrity of their chain — passing through an invalid state, broken signatures, or broken links), your node can reject the transaction you were starting to process. Countersigning allows consensus at the appropriate scale of the decision (two people transacting in this case) to lock data into a tamper-proof state so it can be stored in as many parallel chains as you need.
  • When your node appends a mutually validated and signed transaction to its chain, it has updated its local state and is able to represent the integrity of its data locally. As long as each transaction (link in the chain) has valid linkages and countersignatures, we can know that it hasn’t been tampered with.
  • If you can reliably embody the state of the node in the node itself using Intrinsic Data Integrity, then all nodes can interact in parallel, independent of other interactions to maximize scalability and simultaneous processing. Either the node has the credits or it doesn’t. I don’t have to refer to a global ledger to find out, the state of the node is in the countersigned, tamper-proof chain.
  • Just like any meaningful communication, a protocol needs to be established to make sure that a transaction carries all the information needed for each node to run the processes and produce a new signed and chained state. This could be debits or credits to an account which modify the balance, or recoding courses and grades to a transcript which modify a Grade Point Average, or ratings and feedback contributing to a reputation score, and so on.
  • By distributing process at the foundation, and leveraging Intrinsic Data Integrity, our approach results in massive improvements in throughput (from parallel simultaneous independent processing), speed, latency, efficiency, and cost of hardware.
  • You also don’t need to incent people to hold their own record — they already want it.
  • Another noteworthy observation about humans, cells, and atoms, is that each has a general “container” that gets configured to a specific use.
  • Likewise, the Receptors we’ve built are a general purpose framework which can load code for different distributed applications. These Receptors are a lightweight processing container for the Ceptr Virtual Machine Host
  • Ceptr enables a developer to focus on the rules and transactions for their use case instead of building a whole framework for distributed applications.
  • how units in a currency are issued
  • Most people think that money is just money, but there are literally hundreds of decisions you can make in designing a currency to target particular needs, niches, communities or patterns of flow.
  • Blockchain cryptocurrencies are fiat currencies. They create tokens or coins from nothing
  • These coins are just “spoken into being”
  • the challenging task of
  • ensure there is no counterfeiting or double-spending
  • Blockchain cryptocurrencies are fiat currencies
  • These coins are just “spoken into being”
  • the challenging task of tracking all the coins that exist to ensure there is no counterfeiting or double-spending
  • You wouldn’t need to manage consensus about whether a cryptocoin is spent, if your system created accounts which have normal balances based on summing their transactions.
  • In a mutual credit system, units of currency are issued when a participant extends credit to another user in a standard spending transaction
  • Alice pays Bob 20 credits for a haircut. Alice’s account now has -20, and Bob’s has +20.
  • Alice spent credits she didn’t have! True
  • Managing the currency supply in a mutual credit system is about managing credit limits — how far people can spend into a negative balance
  • Notice the net number units in the system remains zero
  • One elegant approach to managing mutual credit limits is to set them based on actual demand.
  • concerns about manufacturing fake accounts to game credit limits (Sybil Attacks)
  • keep in mind there can be different classes of accounts. Easy to create, anonymous accounts may get NO credit limit
  • What if I alter my code to give myself an unlimited credit limit, then spend as much as I want? As soon as you pass the credit limit encoded in the shared agreements, the next person you transact with will discover you’re in an invalid state and refuse the transaction.
  • If two people collude to commit an illegal transaction by both hacking their code to allow a normally invalid state, the same still pattern still holds. The next person they try to transact with using untampered code will detect the problem and decline to transact.
  • Most modern community currency systems have been implemented as mutual credit,
  • Hawala is a network of merchants and businessmen, which has been operating since the middle ages, performing money transfers on an honor system and typically settling balances through merchandise instead of transferring money
  • Let’s look at building a minimum viable cryptocurrency with the hawala network as our use case
  • To minimize key management infrastructure, each hawaladar’s public key is their address or identity on the network. To join the network you get a copy of the software from another hawaladar, generate your public and private keys, and complete your personal profile (name, location, contact info, etc.). You call, fax, or email at least 10 hawaladars who know you, and give them your IP address and ask them to vouch for you.
  • Once 10 other hawaladars have vouched for you, you can start doing other transactions because the protocol encoded in every node will reject a transaction chain that doesn’t start with at least 10 vouches
  • seeding your information with those other peers so you can be found by the rest of the network.
  • As described in the Mutual Credit section, at the time of transaction each party audits the counterparty’s transaction chain.
  • Our hawala crypto-clearinghouse protocol has two categories of transactions: some used for accounting and others for routing. Accounting transactions change balances. Routing transactions maintain network integrity by recording information about hawaladar
  • Accounting Transactions create signed data that changes account balances and contains these fields:
  • The final hash of all of the above fields is used as a unique transaction ID and is what each of party signs with their private keys. Signing indicates a party has agreed to the terms of the transaction. Only transactions signed by both parties are considered valid. Nodes can verify signatures by confirming that decryption of the signature using the public key yields a result which matches the transaction ID.
  • Routing Transactions sign data that changes the peers list and contain these fields:
  • As with accounting transactions, the hash of the above fields is used as the transaction’s unique key and the basis for the cryptographic signature of both counterparties.
  • Remember, instead of making changes to account balances, routing transactions change a node’s local list of peers for finding each other and processing.
  • a distributed network of mutual trust
  • operates across national boundaries
  • everyone already keeps and trusts their own separate records
  • Hawaladars are not anonymous
  • “double-spending”
  • It would be possible for someone to hack the code on their node to “forget” their most recent transaction (drop the head of their chain), and go back to their previous version of the chain before that transaction. Then they could append a new transaction, drop it, and append again.
  • After both parties have signed the agreed upon transaction, each party submits the transaction to separate notaries. Notaries are a special class of participant who validate transactions (auditing each chain, ensuring nobody passes through an invalid state), and then they sign an outer envelope which includes the signatures of the two parties. Notaries agree to run high-availability servers which collectively manage a Distributed Hash Table (DHT) servicing requests for transaction information. As their incentive for providing this infrastructure, notaries get a small transaction fee.
  • This approach introduces a few more steps and delays to the transaction process, but because it operates on independent parallel chains, it is still orders of magnitude more efficient and decentralized than reaching consensus on entries in a global ledger
  • millions of simultaneous transactions could be getting processed by other parties and notaries with no bottlenecks.
  • There are other solutions to prevent nodes from dropping the head of their transaction chain, but the approach of having notaries serve out a DHT solves a number of common objections to completely distributed accounting. Having access to reliable lookups in a DHT provides a similar big picture view that you get from a global ledger. For example, you may want a way to look up transactions even when the parties to that transaction are offline, or to be able to see the net system balance at a particular moment in time, or identify patterns of activity in the larger system without having to collect data from everyone individually.
  • By leveraging Intrinsic Data Integrity to run numerous parallel tamper-proof chains you can enable nodes to do various P2P transactions which don’t actually require group consensus. Mutual credit is a great way to implement cryptocurrencies to run in this peered manner. Basic PKI with a DHT is enough additional infrastructure to address main vulnerabilities. You can optimize your solution architecture by reserving reserve consensus work for tasks which need to guarantee uniqueness or actually involve large scale agreement by humans or automated contracts.
  • It is not only possible, but far more scalable to build cryptocurrencies without a global ledger consensus approach or cryptographic tokens.
  • Tiberius Brastaviceanu on 01 Jun 16
     
    Article written by Arthur Brook, founder of Metacurrency project and of Ceptr.
Tiberius Brastaviceanu

Engaging For the Commons - Global Pull Platform - Helene Finidori - 0 views

menemania.typepad.com/...engaging-for-the-commons.html

Helene Finidori value value networks paper

shared by Tiberius Brastaviceanu on 21 Nov 12 - No Cached
  • "activating" human agency and political will and addressing the root causes for power unbalance and resistance to change is at the heart of tomorrow's paradigm shift.
  • action-oriented strategy and process methodology for generating engagement, accountability and outcomes in the political, economic, social and environmental spheres, which may contribute to enable this activation.
  • empowering individuals and communities, nurturing public wisdom
  • ...29 more annotations...
  • The platform is structured around commons, issues of social, environmental, economic nature,
  • treated as social objects: the nodes around which social networks are created, conversations and repeated interactions are initiated, new territories explored, meaning and intents shared, learning achieved.
  • ‘pinging of actors’ by ‘citizen-followers’ creates a pull dynamic
  • will yield conversations, knowledge flow, and feedback loops beneficial to learning, progress visualization, and evaluation
  • reate a context favorable to collaboration, exchange of ideas and know-how.
  • The process consists in letting people/organizations:
  • Select, follow,
  • Keep informed and track progress
  • Self assign actor role and communicate/report on self-activity and impact and status of issue.
  • Share
  • Find solutions and potential collaborators for action
  • Select or refer designated actors to acknowledge or request their engagement and action at various levels
  • participate in the conversation, report on activity and impact
  • evaluate and rate activity/impact of and trust toward actors' activity, impact and progress.
  • organize for collective action
  • garner follower participation
  • Initiate and participate in conversations, debates, deliberations
  • The ecosystem is composed of
  • Common’s spaces
  • Common’s graph
  • Progress & Impact or Situation Dashboard
  • The platform creates a context for the following
  • Curate the knowledge flow and increase learning
  • Connect and interrelate people, stakeholders, issues, and knowledge.
  • Help situate an issue
  • Define boundaries
  • Help situate self and others
  • Identify roles and interdependence between actors and issues.
  • Visualize the emergent bigger picture
Tiberius Brastaviceanu

Fostering creativity. A model for developing a culture of collective creativity in science - 0 views

www.ncbi.nlm.nih.gov/...PMC1808036

open science paper

shared by Tiberius Brastaviceanu on 05 Aug 14 - No Cached
  • Scientific progress depends on both conceptual and technological advances, which in turn depend on the creativity of scientists
  • creative processes behind these discoveries rely on mechanisms that are similar across disciplines as diverse as art and science
  • research into the nature of creativity indicates that it depends strongly on the cultural environment
  • ...48 more annotations...
  • create optimal conditions in a research organization with the aim of enhancing the creativity of its scientific staff
  • Creativity has been traditionally associated with art and literature but since the early twentieth century, science has also been regarded as a creative activity
  • Measuring creativity is a challenging task owing to its complex and elusive nature
  • Measurement of brain activity showed that creativity correlates with two brain states: a quiescent, relaxed state corresponding to the inspiration stage, and a much more active state corresponding to the elaboration stage
  • models of creativity
  • have a common feature: they depend on a balance between analytical and synthetic thinking, and usually describe the creative process as a sequence of phases that alternate between these states
  • Most research on creativity has focused on the individual
  • However, more recent studies suggest that creativity also depends strongly on the social and cultural context
  • breakthroughs depended on collaboration and social support
  • social environment in business organizations affects the creativity of their employees
  • Although creative individuals are essential, the strong link with the environment indicates that creativity might be greatly enhanced by generating a culture that supports the creative process.
  • Many of the interviewees repeatedly emphasized three main qualities necessary to be a good scientist: rigorous intellect, the ability to get the job done and the ability to have creative ideas.
  • almost all interviewees characterized their breakthrough moment as an abrupt leap in understanding
  • Although breakthroughs in science depend on such an ‘internal' conceptual shift, they also rely on ‘external' experimental results. However, most interviewees described their breakthroughs as largely internal:
  • Only two scientists expressed the view that their breakthroughs were purely external events, based on the observation of novel data.
  • intuition
  • must be combined with rational thinking to be effective
  • Although the synthesis of a new concept relies on intuition, which is based on subconscious mental processing, it must be subjected to conscious examination and analysis
  • specific mental skills or attitudes
  • ability to make unexpected connections
  • ability to choose relevant possibilities from an infinite set of irrelevant ones
  • interest in the unknown'
  • enjoyment of the creative process
  • stimulation by interacting with colleagues
  • undoubtedly the most crucial trait for creativity, which thrives on the exchange of ideas
  • The majority felt that the individual and the collective are equally important:
  • what interactions are optimal for creativity
  • The majority of interviewees answered that other people provided them with ‘inspiration to do something new'
  • positive feedback after the emergence of a new idea is almost as important as the inspiration that triggered it
  • collective provides the individual with technical expertise
  • Therefore, scientists would value a culture of interaction and mutual inspiration more highly than access to technology, although the latter is essential for their experiments.
  • At the end of the interviews, each scientist was asked to describe the best possible conditions for generating creativity at a research institute.
  • Cross-fertilization is absolutely essential
  • These results indicate strongly that an interactive environment is the single most important factor for stimulating creativity
  • interacting with people doing very different things
  • interacting with colleagues informally
  • interactions within any institution are strongly affected by its organization
  • Several interviewees described ‘an open hierarchy' as an important factor for creativity
  • hierarchy is based on genuine respect because people are great scientists, but at the same time they're very approachable and open towards what you have to say
  • These results suggest that the best conditions for scientific creativity come with a free-flowing hierarchy and a highly developed culture of interaction to guarantee the exchange of ideas and inspiration.
  • Furthermore, interdisciplinary interactions lead to the generation of new and unusual ideas
  • Finally, because of the freedom to try new things, these ideas can be tested and eventually generate new insights.
  • Creativity can be described as an emergent phenomenon
  • nonlinear phenomena
  • Emergence depends on dynamic interactions between individual agents within the system
  • The importance of a ‘freedom to try new things' and a ‘free-flowing hierarchy' further supports the idea that individual components in an emergent system must be able to interact flexibly without central control
  • During the interviews, it became apparent that although a culture of interaction and creativity exists at EMBL, this itself is not often the subject of discussion. The values on which this culture is based are seemingly implicit rather than explicit
  • Potentially, the EMBL culture of interaction could be strengthened further by consciously expressing and discussing the values on which it is based
Tiberius Brastaviceanu

Dark Intellectual Property. Why We Need a Kickstarter for Patents - 0 views

www.wired.com/...need-a-kickstarter-for-patents

ip academia paper argument Tibi Greg university dark IP

shared by Tiberius Brastaviceanu on 06 Aug 13 - No Cached
  • “dark IP,” the intellectual property (IP) that remains on the shelf: undiscovered, unexplored, untapped
  • our ability to catch so much in the net by dragging the surface (to use Mike Bergman’s analogy) actually still misses the invisible wealth of what lies beneath.
  • But dark IP is different than the other hidden-depths knowledge since it’s also unfair. Because taxpayers paid for much of the research — whether basic understanding with long-term benefits or more applied research with shorter-term benefits — that now lies collecting dust on university shelves.
  • ...31 more annotations...
  • the people of the United States spent an average of nearly $40 billion every year supporting institutional research
  • 65 percent of invention disclosure bundles remain, on average, unlicensed and unused … each year.
  • ”…the street finds its own uses for things.”
  • most of the IP (much of which we paid for) isn’t actually on the street, where entrepreneurial folks can do something with it.
  • the overworked and understaffed tech transfer offices
  • their models
  • There’s not necessarily room for exploration and discovery
  • byzantine bureaucracy of large organizations
  • But let’s face it, there’s also the hoarding and the overprotecting
  • So much IP is generated that it’s far too much for any one entity to ever make sense of
  • very few people are aware of — let alone able to access — an invention outside the social circle of its inventors, the scientific community involved, or even the “crowd” that’s sometimes harnessed in open innovation
  • we need new ways of democratizing it
  • Not democratizing the IP itself — institutions should still own and generate profits from the intellectual property they’ve created — but democratizing the ways in which we allow this IP to be discovered and licensed.
  • idea contests
  • marketplaces
  • competitions to find uses for on-the-shelf IP
  • missing out on the transformative potential of what technology can do here
  • promoting new ways of interacting around intellectual property
  • Marblar, where I’m an advisor
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 06 Aug 13
       
      The guy is not entirely for open innovation but proposes an intermediary model to democratize the use of IP
  • This turns off the average entrepreneur, who doesn’t have the patience and bandwidth to engage in all the unnecessary overhead of searching, browsing, and licensing IP.
  • Many small startups don’t even bother with IP
  • Another missing piece is ways of allowing the crowd to interact with each other and decide which technologies should be licensed
  • bidding wars
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 06 Aug 13
       
      competitive dynamic for acquiring IP and using it effectively. This doesn't solve the problem, because some companies will still buy it for defensive purposes or block others from using it, unlike with truly open innovation. 
  • Most of the examples I listed above haven’t changed much over the past decade or broken into the mainstream.
  • why not a Kickstarter for IP?
  • Such a website would bring together not just funds and transactions, but communities — with their attendant feedback mechanisms — that are interested in creating something novel around unused patents.
  • such a model would help get the ideas of a few into the minds of many.
  • open up the currently closed shelf to virtual browsing
  • inventions are not only ‘filed’ or ‘granted’ but ‘browsed’ or ‘licensed’.
‹ Previous 21 - 31 of 31
Showing 20▼ items per page