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Celebrity Surprises at Comic Con

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One of the reasons the San Diego Comic Con has emerged as the largest comic book convention in the world lies in the simple fact that we happen to be exceptionally close to Hollywood. After George Lucas started using the convention to promote Star Wars all the way back in 1977, other studios followed suit and now the convention is one of the best ways for fans to see their favorite stars and get inside info about new movies and television shows.

As someone who isn't that interested in celebrities, hates waiting in lines (and getting stabbed in the eye), I tend to avoid the star-studded panels. Even so, I still ended up having a few celebrity surprises of my own. On my way to one shuttle, I ended up seeing Pauly Shore:

After the convention one day, my boyfriend spotted Robert Ben Garant of The State and Reno 911 (Deputy Junior). When I interviewed Scott Thompson (to be posted next week!), he said he also saw Thomas Lennon (Lieutenant Dangle) cruising the convention as well.

I also ran into Patton Oswalt as he was sitting outside the Marriott. He was nice for posing for a photo being as tired as he was at the time.

But all of my celebrity sightings were small potatoes compared to the major shockers going on inside the panels. As you've no doubt heard, Harrison Ford arrived as a surprise guest at Universal's Cowboys and Aliens panel. This was even more of a surprise not because he was escorted on stage in handcuffs, but because in the 30+ years that Star Wars has been a huge part of the convention, Harrison Ford never once appeared before this.

Image by Trevor Stolebarger of First Kiss Productions.

During the Scott Pilgrim Vs. The World panel, Michael Cera decided to fill in for co-star Cris Evans, who missed the convention to film the Captain America movie. To do so, he wore a Captain America suit loaded with fake muscles.

Image by Trevor Stolebarger of First Kiss Productions.

During the Tron panel, Guillermo del Toro announced that he would be directing a new movie based on the Haunted Mansion. Unlike the Eddie Murphy one, this 3D flick is slated to be a real horror movie.

Perhaps the biggest surprise occurred when Brad Pitt dropped by the Megamind panel with Will Ferrell and Tina Fey. People were whispering that he might drop by to promote his newest film since Angelina was at the convention promoting Salt, but they were humorously surprised to see Will Ferrell, dressed as Megamind, bring Brad Pitt on cardboard form.

Image by Trevor Stolebarger of First Kiss Productions.

Ok, I fibbed, a cardboard cut out of Brad Pitt wasn't actually the biggest shock of the convention. The moment that really sent fans in a tizzy was when the cast of the upcoming Avengers movie crashed the Marvel panel. Surprise stars included Robert Downey Jr., Samuel L. Jackson and Scarlett Johansson.

Image by Trevor Stolebarger of First Kiss Productions.

For me though, I think the coolest surprise was the Machete Party held by Robert Rodriguez. The block party had a taco truck that was manned by Rodriguez and a dj. Some lucky party goers even got a golden ticket that allowed them to attend a Machete extended trailer screening and an after party that included free margaritas and tequila shots. In attendance was JJ Abrams and Danny Trejo.

Image by Trevor Stolebarger of First Kiss Productions.

In short, if you make it to Comic Con next year, keep your eyes open because you never know what kind of surprises to expect.

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iStock // Ekaterina Minaeva
Man Buys Two Metric Tons of LEGO Bricks; Sorts Them Via Machine Learning
May 21, 2017
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iStock // Ekaterina Minaeva

Jacques Mattheij made a small, but awesome, mistake. He went on eBay one evening and bid on a bunch of bulk LEGO brick auctions, then went to sleep. Upon waking, he discovered that he was the high bidder on many, and was now the proud owner of two tons of LEGO bricks. (This is about 4400 pounds.) He wrote, "[L]esson 1: if you win almost all bids you are bidding too high."

Mattheij had noticed that bulk, unsorted bricks sell for something like €10/kilogram, whereas sets are roughly €40/kg and rare parts go for up to €100/kg. Much of the value of the bricks is in their sorting. If he could reduce the entropy of these bins of unsorted bricks, he could make a tidy profit. While many people do this work by hand, the problem is enormous—just the kind of challenge for a computer. Mattheij writes:

There are 38000+ shapes and there are 100+ possible shades of color (you can roughly tell how old someone is by asking them what lego colors they remember from their youth).

In the following months, Mattheij built a proof-of-concept sorting system using, of course, LEGO. He broke the problem down into a series of sub-problems (including "feeding LEGO reliably from a hopper is surprisingly hard," one of those facts of nature that will stymie even the best system design). After tinkering with the prototype at length, he expanded the system to a surprisingly complex system of conveyer belts (powered by a home treadmill), various pieces of cabinetry, and "copious quantities of crazy glue."

Here's a video showing the current system running at low speed:

The key part of the system was running the bricks past a camera paired with a computer running a neural net-based image classifier. That allows the computer (when sufficiently trained on brick images) to recognize bricks and thus categorize them by color, shape, or other parameters. Remember that as bricks pass by, they can be in any orientation, can be dirty, can even be stuck to other pieces. So having a flexible software system is key to recognizing—in a fraction of a second—what a given brick is, in order to sort it out. When a match is found, a jet of compressed air pops the piece off the conveyer belt and into a waiting bin.

After much experimentation, Mattheij rewrote the software (several times in fact) to accomplish a variety of basic tasks. At its core, the system takes images from a webcam and feeds them to a neural network to do the classification. Of course, the neural net needs to be "trained" by showing it lots of images, and telling it what those images represent. Mattheij's breakthrough was allowing the machine to effectively train itself, with guidance: Running pieces through allows the system to take its own photos, make a guess, and build on that guess. As long as Mattheij corrects the incorrect guesses, he ends up with a decent (and self-reinforcing) corpus of training data. As the machine continues running, it can rack up more training, allowing it to recognize a broad variety of pieces on the fly.

Here's another video, focusing on how the pieces move on conveyer belts (running at slow speed so puny humans can follow). You can also see the air jets in action:

In an email interview, Mattheij told Mental Floss that the system currently sorts LEGO bricks into more than 50 categories. It can also be run in a color-sorting mode to bin the parts across 12 color groups. (Thus at present you'd likely do a two-pass sort on the bricks: once for shape, then a separate pass for color.) He continues to refine the system, with a focus on making its recognition abilities faster. At some point down the line, he plans to make the software portion open source. You're on your own as far as building conveyer belts, bins, and so forth.

Check out Mattheij's writeup in two parts for more information. It starts with an overview of the story, followed up with a deep dive on the software. He's also tweeting about the project (among other things). And if you look around a bit, you'll find bulk LEGO brick auctions online—it's definitely a thing!

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Name the Author Based on the Character
May 23, 2017
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