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Εδώ οι γενικές συζητήσεις και ό,τι δεν μπαίνει κάτω από τις άλλες κατηγορίες...
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JasonZante
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Όποιος ενδιαφέρετε να πάρει ένα βασικό μάθημα προγραμματισμού με καλού επιπέδου υλικό : https://www.udacity.com/

Είναι το πρώτο online πανεπιστήμιο . Ο ένας από τους τρεις ιδιοκτήτες ήταν υπεύθυνος στο τμήμα αυτοοδηγητων αυτοκινήτων της Google. Το Udacity δίνει ένα δωρεάν μάθημα Python και για να πάρεις το νανοπτυχίο* τους πρέπει να πληρώσεις ένα ποσό.

*Νανοπτυχίο είναι το πτυχίο που παίρνεις από το Udacity. Παράδειγμα, το νανοπτυχίο του VR Developer που έχουν, αναγνωρίζετε από την Google VR οπότε προσλαμβάνουν κόσμο από αυτό το πρόγραμμα.

Δεν είναι affiliate link, δεν κερδίζω κάτι άμα το τσεκάρετε, απλώς πιστεύω ότι είναι χρήσιμο να ξέρεις έστω τα βασικά του προγραμματισμού


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Παίρνω την πρωτοβουλία και ανοίγω αυτό το τόπικ, όπου θα μιλάμε για tech news, απόψεις κτλ.

Πιστεύω ότι η ενημέρωση περί σημαντικών τεχνολογικών εξελίξεων είναι πάρα πολύ σημαντική και αυτός είναι ο λόγος που ξεκινάω το τόπικ.

Η έλλειψη ποιοτικών τεχνολογικών νέων στα ελληνικά είναι ένα μικρό πρόβλημα, οπότε όποιος ποστάρει άρθρο στα αγγλικά καλό θα ήταν να μετάφραζει το σημαντικό κομμάτι τουλάχιστον, αν μπορεί.

https://techcrunch.com/2017/06/27/volks ... -vehicles/
Spoiler: show
Volkswagen is working with Nvidia to expand its usage of its artificial intelligence and deep learning technologies beyond autonomous vehicles and into other areas of business, the two companies revealed today.

VW set up its Munich-based data lab in 2014. Last year it pushed on with the hiring of Prof. Patrick van der Smagt to lead a dedicated AI team that is tasked with taking the technology into areas such as ‘robotic enterprise,’ or use of the technology in enterprise settings.

That’s the backdrop to today’s partnership announcement. VW wants to use AI and deep learning to power new opportunities within its corporate business functions and, more widely, “in the field of mobility services.” As an example, the German car-maker said it is working on procedures to help optimize traffic flow in cities and urban areas, while it sees the potential for intelligent human-robot collaboration, too.

“Artificial intelligence is the key to the digital future of the Volkswagen Group. We want to develop and deploy high-performance AI systems ourselves. This is why we are expanding our expert knowledge required. Cooperation with NVIDIA will be a major step in this direction,” Dr. Martin Hofmann, CIO of the Volkswagen Group, said in a statement.

Beyond the work on VW’s own brands, the car-maker and Nvidia are teaming up to help other startups in the automotive space. The VW Data Lab is opening a startup support program that is specialized on machine learning and deep learning with Nvidia’s help. The first batch will include five startups and start this fall. The duo is also reaching out to students with a “Summer of Code” camp that will begin soon.

Nvidia is already working with VW-owned Audi on self-driving cars — which they are aiming to bring to market by 2020 — but today’s announcement is purely about the data potential and not vehicles themselves. VW did ink an agreement earlier this year to work with Nvidia to develop AI-cockpit services for its 12 automotive brands, but it is also working with rival chip firm Qualcomm on connected cars and smart in-car systems, too.

This VW hookup is one part of a triple dose of automotive-themed news updates from Nvidia today.

Separately, it announced that Volvo and Autoliv have committed to sell self-driving cars powered by its technology by 2021. Nvidia also signed up auto suppliers ZF and Hella to build additional safety standards into its autonomous vehicle platform.
Η VW λοιπόν ανακοίνωσε την συνεργασία της με την NVIDIA, για να αναπτύξουν περεταίρω το σύστημα τεχνητής νοημοσύνης που έχουν, πέρα από τα αυτοκίνητα αυτοκίνητα ( :D )

Επίσης, η Audi (η οποία ανήκει στην VW), στοχεύει να φέρει στην αγορά το πρώτο της self driving car (πως το λέμε στα ελληνικά; Αυτοδήγητο αμάξι;) το 2020.

3 χρόνια από τώρα παίζει δυνατά να έχουμε αυτόνομα αυτοκίνητα (το googlαρα :P).

Το σύστημα τεχνητής νοημοσύνης που αναπτύσουν επικεντρώνεται στην βελτιστοποίηση της κίνησης στις πόλεις και στις αστικές περιοχές ενώ βλέπουν την προοπτική στην πιθανή νοήμων συνεργασία ανθρώπων & μηχανών.
Last edited by JasonZante on Fri Jan 05, 2018 7:02 pm, edited 3 times in total.
"Man cannot remake himself without suffering, for he is both the marble and the sculptor"
JasonZante
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Mπορεί να αλλάξει πολλά πράγματα .

Πρώτον, άμα αρχίσει και χρησιμοποιείται μαζικά από τον κόσμο, μπορεί να αλλάξει το νομικό σύστημα παντού. Όταν ξεκινήσουν και φτιάξουν ψηφιακά μοντέλα από το 0 που θα μοιάζουν με αληθινά, ο καθένας θα μπορεί να έχει "αποδεικτικό στοιχείο" για τον καθένα, οπότε θα πρέπει να αλλάξει το σύστημα.

Προπαγάνδα εννοείται, από κυβερνήσεις/αντοπολίτευση κτλ.

Θα γίνει πιο εύκολο για κάθε celebrity/πολιτικό, θύμα video leak, απλώς να πει ότι είναι ψεύτικο το βίντεο

Game changing
"Man cannot remake himself without suffering, for he is both the marble and the sculptor"
JasonZante
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Black Mirror Season 2 Episode 1

Be_Right_Back
"Man cannot remake himself without suffering, for he is both the marble and the sculptor"
JasonZante
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https://www.technologyreview.com/s/6094 ... -security/
We find that the proof-of-work used by Bitcoin is relatively resistant to substantial speedup by quantum computers in the next 10 years, mainly because specialized ASIC miners are extremely fast compared to the estimated clock speed of near-term quantum computers,” they say.
But there is a different threat that is much more worrying. Bitcoin has another cryptographic security feature to ensure that only the owner of a Bitcoin can spend it. This is based on the same mathematics used for public-key encryption schemes.
The idea is that the owner generates two numbers—a private key that is secret and a public key that is published. The public key can be easily generated from the private key, but not vice versa. A signature can be used to verify that the owner holds the private key, without revealing the private key, using a technique known as an elliptic curve signature scheme.
In this way, the receiver can verify that the owner possesses the private key and therefore has the right to spend the Bitcoin.
The only way to cheat this system is to calculate the private key using the public key, which is extremely hard with conventional computers. But with a quantum computer, it is easy.
And that’s how quantum computers pose a significant risk to Bitcoin. “The elliptic curve signature scheme used by Bitcoin is much more at risk, and could be completely broken by a quantum computer as early as 2027,” say Aggarwal and co.
Indeed, quantum computers pose a similar risk to all encryption schemes that use a similar technology, which includes many common forms of encryption.
"Man cannot remake himself without suffering, for he is both the marble and the sculptor"
JasonZante
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https://bitcoinmagazine.com/articles/ca ... as-greece/
Spoiler: show
Greek graduates may soon be able to prove their qualifications by way of a blockchain.

GRNET, the national research and education network of Greece, is working on a pilot project with blockchain research and development company IOHK to verify student diplomas on Cardano, a blockchain that launched in September.

The project is notable because it is the first official use case of Cardano, a proof-of-stake-based cryptocurrency and soon-to-be smart contract platform currently under development by IOHK.

The GRNET app will be built on Enterprise Cardano, a private or permissioned ledger version of Cardano. Unlike a public blockchain, where anyone can join in and participate, a private blockchain allows only a restricted set of users to validate block transactions.

So far, three Greek universities are participating in the project. While IOHK is providing the decentralized database, GRNET is providing the web front end and support and will bring together other universities participating beyond the pilot.

Funding for the project comes in part from Horizon 2020, a European program for research and innovation. Development of the prototype is already under way, Aggelos Kiayias, IOHK’s chief scientist, told Bitcoin Magazine.

Why Diplomas?
Given IOHK’s deep ties with academia, it is no surprise to find the company working on a project that involves universities. But why diplomas?

Putting diplomas on a blockchain takes the paperwork out of the process and makes it easy and simple to check if someone holds a degree.

Typically, when a student graduates, they receive a paper copy of a diploma signed by the dean and co-signed the university’s registrar. All of the students’ transcripts and records are stored in the university’s centralized database.

To confirm that a graduate has the degree they claim to have, an employer has to check the official diploma or call the university. The labor-intensive process makes it too easy for unqualified applicants to slip under the radar.

Putting documents and records on the blockchain eliminates opportunity for fraud in that it allows graduates and universities to “issue a proof that a qualification exists that is undeniable,” said Kiayias. “This is a point of reference that can be agreed [on] by everyone.”

Cryptographic Proof
But to protect student privacy, instead of putting an entire diploma on the blockchain, GRNET plans to put only a cryptographic hash of a diploma on the blockchain.

Digital documents are easy to alter in ways that are undetectable to the human eye. But as long as the digital version shown to an employer hashes to the same output as what is stored on the blockchain, that proves the document is the original, unaltered version.

“We cannot put any plaintext on the blockchain, as diplomas and transcripts are personal information. We only put hashes; we may put entire diplomas and transcripts, but they will always be encrypted,” Panos Louridas, GRNET consultant and associate professor at Athens University of Economics and Business, explained to Bitcoin Magazine in an email.

This is not the first effort to store diplomas on the blockchain. In October, MIT announced its own pilot project to verify digital diplomas using the blockchain.

But Louridas claims the GRNET pilot is different from prior projects in that it stores the entire chain of verification steps on the blockchain. Each step would be recorded as its own immutable transaction on a separate block in the blockchain.

“You don’t really need a blockchain to store diplomas: a simple system with some digital signatures by the host institution would do,” he said. “We want to be able to record that somebody has asked for proof of a degree, that the proof has been granted, that the proof has been forwarded to a verifier, and that the verifier can verify that the degree is valid, and nobody can dispute any of the above steps.”

The three Greek universities taking part in the pilot include Aristotle University of Thessaloniki, Democritus University of Thrace and Athens University of Economics and Business.
Να και ένα καλό νέο από Ελλάδα, ελπίζω ο κόσμος στην Ελλάδα να μαθαίνει όλο και περισσότερο για τα κρύπτο, είναι σημαντικό να μπούμε νωρίς στο παιχνίδι
"Man cannot remake himself without suffering, for he is both the marble and the sculptor"
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Fyi όταν λες crypto ΟΛΟΙ οι άνθρωποι στο CS καταλαβαίνουν cryptography, όχι cryptocurrencies (αυτό είναι λάθος που γινεται παγκοσμίως πλέον).
Από κει και πέρα, το παραπάνω ακούγεται σαν ένας fancy/μοδάτος τρόπος να κάνεις πράγματα που ήδη ξέρουμε πως να κάνουμε.

On a different note: Κάντε update τα λειτουργικά σας (Windows, Mac, Linux, BSD, whatever). Βγήκε χοντρό bug πριν 2-3 μέρες στις CPU της Intel (και όχι μόνο).
Εξήγηση: Και μια ενδιαφέρουσα παράμετρος:
http://www.businessinsider.com/intel-ce ... law-2018-1
tl;dr: ο CEO της Intel πούλησε 30Μ μετοχές λίγο αφότου ενημερώθηκε για το bug (πριν βγει δημόσια ενημέρωση)...
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https://techingreek.com/fimi-i-amazon-v ... a-skroutz/

είχε έρθει πρόσφατα υψηλόβαθμο στέλεχος της Amazon στην Ελλάδα και είχε συναντηθεί και με έναν υπουργό αν θυμάμαι καλά. ενδιαφέρον αν θα έρθει τέτοια εταιρεία και ασχοληθεί με την λιανική εδώ. btw λίγο χαμουλης γίνεται με τους εμπόρους και το skroutz τώρα τελευταία. αλλάζουν το σύστημα από pay per click σε pay per sale και αυτό δεν άρεσε σε πολλούς και λογικό. άλλο να πληρώνεις ανάλογα την επισκεψιμοτητα και άλλο σε κάθε πώληση να μπαίνει και "χαράτσι". αν δεν κάνω λάθος έχουν μαζευτεί έμποροι και έχουν ήδη κάνει ομαδικές αγωγές.
Spoiler: show
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