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mjpuser

154 karma · joined June 15, 2015

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mjpuser··on Silicon Valley Hedge Fund Takes on Wall Street with AI Trader
I just checked out glassdoor, and it seems like they don't know what their product should be since top execs don't want to agree on anything.

> We have too many executives for a company this size - most don't add much value except for fighting with each other and politicizing issues. The CEO lives in HongKong and remotely manages this crew of distrusting, non-supportive and close-minded execs. The HR function is practically a joke. You don't ask questions, challenge their decisions or speak up - they'll threaten to fire you if you did. They have not been able to productize their technology, their trading business has not picked up and their sales pipeline is pretty dry for the other businesses. They have laid off a large number of people recently and financial trouble seems to be brewing - lot of marketing smoke in here!

> Focus on one product and give it more time.

> Productize, productize, productize.

mjpuser··on LibreTaxi – A free and open source alternative to Uber and Lyft
I see where you are coming from with the cash issue, but in NYC, it's not uncommon to have to pay cash at a store, so many people carry cash.
mjpuser··on Yes, organic farming will kill us all
I don't have any 1st hand experience with this, but my friend is in finance, and he is doing pro bono work for a non profit. One thing he mentioned to me that struck him was that this company invested money in areas with high risk. He said it wasn't so much about money in some cases, but the mission of the company. So I can see how being a non profit can change some things.
mjpuser··on Yes, organic farming will kill us all
Can you give sources? These seem to all be backwards from some of my reading and experience.

- Rodale Farm is all about no till - http://rodaleinstitute.org/our-work/organic-no-till/

- Not sure about adding salt, unless you mean adding seaweed or ash? Salt is bad for the soil, and so it's known that those substances should be used prudently

- As far as caring about the value of their land, it's valuable to have an organic farm since "organic" cows have to be raised on organic soil. Organic milk has higher retail value, which can be seen as adding value. You can also work with other farmers that want to produce organic milk, by helping them transition by using your own land [edit] for a fee...

- "organic herbicides are less efficient, so organic farmers use more". Not sure this is true, my work with Rodale has mostly been towards trying to rid the farm of pesticides and finding natural ways around them. Not sure about big ag though.

mjpuser··on A guide dog that spies on people who ignore its owner
In all fairness, he doesn't look blind. There are many people with sight that have a service dog.
mjpuser··on George Hotz Is Giving Away Self-Driving Software
I noticed that too. https://github.com/commaai/openpilot/blob/master/selfdrive/v...
mjpuser··on I tried to fly to London on a fake passport [video]
RE: what is he fleeing from in Franch?

Maybe he doesn't know, and doesn't want to learn French?

RE: something great or terrifying

Classic case of "do the ends justify the means." It's not a simple thing.

mjpuser··on Misperceiving Bullshit as Profound
Jason Silva is bullshit.

The League on love https://www.youtube.com/watch?v=BrKGP33tKSk&t=40s

Jason silva on love https://www.youtube.com/watch?v=-OXfohJQdCA

mjpuser··on HCL: a color model that actually matches our perceptions (2011)
I can't figure out what this has to do with perception. In our retina, we have rods for brightness and cones as color sensors. So perception would be farther up, possibly in ganglion cells, thalamus, or visual cortex.

Side note: this is still an interesting topic though, and there is nothing wrong with exploring non-human modes of perception.

mjpuser··on A vegetarian diet could cause long-term genetic changes
That isn't the claim they are making, because that would be a huge claim. I think the author knows that the occurrence of mutations aren't present because they are eating veggies. Instead, they mean they are being selected because they are eating veggies.
mjpuser··on Using Law Against Technology
This is a bit off topic, but I don't understand the government's need to stunt technology for the good of the country. Is there really a net benefit for spending trillions on cyber spying? I've yet to see a cost benefit analysis on that, and would appreciate any input on that.
mjpuser··on Why I no longer use MVC frameworks
Re: why there is no "standard" functions that you can [use] to theme various snippets of HTML/CSS. -> There shouldn't really be a "theme" in HTML. Yes, you have classes and stuff, but the html should be _markup_ in that describes data, not worrying about presentation. Different themes should be achieved via CSS, which is the standard theming abilities you're looking for. Honestly, I can understand the confusion, since it's difficult to parse through all the technologies and understand what is going on at the heart of the matter.
mjpuser··on Choosing an HTTP Status Code
I think that you have a point as far as staying true to what the status codes mean, but it comes with a price. To make the resource invisible to the user by 404ing instead of 403ing, you protect yourself from people searching for endpoints that return personal info... and all urls are guessable. If you get a hit on some resource in a sea of 404s, you are that much closer to gaining private info.
mjpuser··on Single Artificial Neuron Taught to Recognize Hundreds of Patterns
These models are based on cortical columns, and therefore only pertain to cortical activity. It would be interesting to see how other parts of the brain could be modeled, like the thalamus and hippocampus.

Anyhow, it would also be great to see if this could reproduce the ocular dominance column patterns.

mjpuser··on Why Neurons Have Thousands of Synapses: a Theory of Sequence Memory in Neocortex
I don't have a better theory, but that wasn't my point. It may be that there is a setup to read and understand language, but there has never been code presented based on this technology that does it. This is why I'm interested to see how you could set it up to make it work. If you could prove me wrong, then great! I'd love to see it.
mjpuser··on Why Neurons Have Thousands of Synapses: a Theory of Sequence Memory in Neocortex
My example was also spoon feeding questions and answers to the HTM. If you were to just give it a corpus of text, and then ask it a question about that text, it would not be able to formulate an answer that has any meaning, and follow proper English grammar. If you disagree, you can respond with a working example.
mjpuser··on Why Neurons Have Thousands of Synapses: a Theory of Sequence Memory in Neocortex
Nupic showcases it's "What did the fox eat" use case which uses cortical.io's SDRs of words. In this example it "asks the question" what does the fox eat after teach it what other animals eat, and without ever seeing fox before, it's able to accurately say what it eats since it groups foxes with coyotes, etc, which have a similar SDR. However, this is a sequence... They fed it sentences only in the form "a eats b" and then fed it "fox eats", and it replied "rodent" or whatever... The SDR's have to be sequences in order for the HTM to work. So if you ask "Guess how many balls are in this jug", you have to do an implied computation to guess how many possible balls fit inside the jug, and that implied computation is not the word sequence (or sdr sequence). Even if you gave it an infinite amount of similar questions and answers like this, it would never be able to figure out a general way to answer the question, which means you could always stump it by giving a different sized jug + different sized ball.
mjpuser··on Big data in genomics: The $1k genome has arrived
A quick search for public genome data led me here http://www.completegenomics.com/public-data/69-Genomes/. I wonder if there will be a time when you can search millions through a rich UI, comparing your own genome with others, etc.
mjpuser··on Why Neurons Have Thousands of Synapses: a Theory of Sequence Memory in Neocortex
Sorry! To clarify that it doesn't work with language, I mean you can't ask it a question and then expect it to come up with an answer. For most meaningful questions, you can't sequence an answer from it's question in a general way. This might be in part because Hawkins isn't trying to mimic the brain, but learn about how it works to apply the algorithms it uses to our needs/wants.
mjpuser··on Why Neurons Have Thousands of Synapses: a Theory of Sequence Memory in Neocortex
Hawkins' mantra is sequence based memory. I love this guy and his work. And although I think his company has had success with sequence based AI, it still doesn't totally answer how the brain works. His model basically works by taking encoded symbols and being able to predict the next encoded symbol. This works great for things with patterns (power consumption, traffic patterns, etc), but it doesn't work with language. You will not be able to predict what I am going to say, or predict my answer based on the question, at least not very well. The problem is that he needs to figure out meta computation. His product, nupic, would take in a string of words, which gets encoded into a semantic representation, and tries to predict what's next. But concepts are larger than a single word, and until it can build a working semantic representation of what it's currently processing, it will not prove to be a useful model in describing how the brain works, or at least being able to compare it to our brain.
mjpuser··on Evaluating the Rescue of Fannie Mae and Freddie Mac
As a programmer, I think it's better to just "Let it crash". The reasons that they left are so high level, they are meaningless. This is a 10 paragraph article on an evaluation of the global economy. How was this published with any degree of sincerity?
mjpuser··on What does it mean for an algorithm to be fair?
Unless there is some identifier in the data that specifies race and the algorithm discriminates on that, it's racist. If not, then it's not racist. AM I RIGHT?
mjpuser··on In 1900, Los Angeles had a bike highway
This reminded me of the tour de france... http://ink361.com/app/users/ig-%20225515122/mikaeellewis/pho...
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