Το Insafe www.saferinternet.org πρόσφατα δημοσίευσε τρία δέντρα αποφάσεων για την αντιμετώπιση των θεμάτων που οι νέοι μπορεί να συναντήσουν στο διαδίκτυο, όπως το διαδικτυακό εκφοβισμό, τα ερωτήματα που μπορεί να έχουν σχετικά με την ανάρτηση περιεχoμένου και τις online φιλίες τους. Σας παρουσιάζουμε το πρώτο από αυτά: "Σκέψου πώς να προστατέψεις τον εαυτό σου στο Διαδίκτυο!" το οποίο επικεντρώνεται στην παροχή βοήθειας προς τους νέους αν είναι θύματα εκφοβισμού στα κοινωνικά δίκτυα.
Events such as movement of clouds, the rising and setting of the sun, a party with your friends, even individual activities or anything else that you can imagine. You will see them in a new way and otherwise undetectable patterns will emerge.
Αυτό είναι ένα online εργαλείο βασισμένο στο web 2.0. Μπορείτε να το χρησιμοποιήσετε για να δημιουργήσετε τέλεια διαγώνιες ρίγες στα σχέδιά σας. Μπορείτε να επιλέξετε το μέγεθος και να ρυθμίστε την απόσταση μεταξύ των δύο λωρίδων, ...
SimpleMeet.me is an easy to use service that solves a simple but awkward problem. It enables you to chat instantly with everyone from within your favorite web browser, without any account or software to install.
Via Kathleen Cercone
Gamification is one of the buzzwords in education right now, and for a good reason: Gamification is empowering, exciting, and under the right circumstances can be the disruptive innovator many teachers desperately need in order to change the dynamics between knowledge and the learner. There is an explosion of EdTech tools destined to gamify the …
[Note #2 of Olivier Lartillot, curator: I suggest a short name for the upcoming dedicated website: adlib.it! ^^]
With The Infinite Jukebox, you can create a never-ending and ever changing version of any song. The app works by sending your uploaded track over to The Echo Nest, where it is decomposed into individual beats. Each beat is then analyzed and matched to other similar sounding beats in the song. This information is used to create a detailed song graph of paths though similar sounding beats. As the song is played, when the next beat has similar sounding beats there’s a chance that we will branch to a completely different part of the song. Since the branching is to a very similar sounding beat in the song, you (in theory) won’t notice the jump. This process of branching to similar sounding beats can continue forever, giving you an infinitely long version of the song.
To accompany the playback, I created a chord diagram that shows the beats of the song along the circumference of the circle along with with chords representing the possible paths from each beat to it’s similar neighbors. When the song is not playing, you can mouse over any beat and see all of the possible paths for that beat. When the song is playing, the visualization shows the single next potential beat. I was quite pleased at how the visualization turned out. I think it does a good job of helping the listener understand what is going on under the hood, and different songs have very different looks and color palettes. They can be quite attractive.
I did have to adapt the Infinite Gangnam Style algorithm for the Infinite Jukebox. Not every song is as self-similar as Psy’s masterpiece, so I have to dynamically adjust the beat-similarity threshold until there are enough pathways in the song graph to make the song infinite. This means that the overall musical quality may vary from song to song depending on the amount of self-similarity in the song.
Overall, the results sound good for most songs. I still may do a bit of tweaking on the algorithm to avoid some degenerate cases (you can get stuck in a strange attractor at the end of Karma Police for instance). Give it a try, upload your favorite song and listen to it forever. The Infinite Jukebox.
Who says you can't integrate geography and real world applications into the math curriculum? Paul Bouke has scoured the Earth searching for fractals in the natural environment and created this amazingly artistic remote sensing gallery (with KMZ files for viewing in Google Earth as well).
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