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Comment Re:"43.5 million kilowatt hours" (Score 3, Interesting) 104

137 acre plant != 137 acres of solar panels
Large solar setups need roads to access the panels, and if they are tilted it'll need space between panels to avoid wasted panel area from shadows.

Here's a similar but older plant:
    http://en.wikipedia.org/wiki/Nellis_Solar_Power_Plant
    14 MW, 140 acres, 30 GW*h/year, built in 2007
Note in the photos how much sun hits the dirt (i.e. not on panels within the 140 acre plant).

So it's the right ballpark for a newer plant of the same size (but with better solar panels or packing) to be 18MW in 137 acres. I think you are right that it isn't optimistic, 43 GW*h/year sounds perfectly reasonable for a plant built 6 years later.

Comment Re: It Still Doesn't Mean Much... (Score 1) 141

You got it all wrong. Big-O is indeed about the tight upper bound, and the complexity of the input size. And as the number of operations increase, you bet your ass that it will be particularly useful. Oh you bet your ass.

GP is being an ass, and doesn't seem to understand what "asymptotic complexity" means. However, you are incorrect about big-O, which does not need to be a tight bound. You're thinking of big-theta. Wikipedia has a concise summary:
    https://en.wikipedia.org/wiki/Big_theta#Family_of_Bachmann.E2.80.93Landau_notations

Comment Re:Goodbye Anonymity (Score 1) 115

I work at Google, and have no idea where you came up with your claims.

i hear from acquaintances who work in Google that the algorithms they run on emails do something much like this. among other things, they know when you are thinking of taking another job almost before you do.

While I cannot disprove that HR is running sentiment analysis, we have company-wide surveys every year that they could use, biannual reviews by co-workers, and quarterly short reviews from managers. All of those probably have much higher signal/noise ratio than rummaging through peoples' email. Also, they type of people who can do that kind of NLP are probably better off working on NLP-related areas that help the company such as Android, Search, or Ads.

word is, among the things you must not say on the phone inside the pure-freedom, do-no-evil world of Google, is "let's take this offline" or anything else indicating you don't want to talk about something on the phone, since that's an instant tip that you want to say something unsurveilled. coming soon to our entire society!

This is not at all true. First of all, for internal communications hardly anyone uses phones anymore -- chat, voice chat, and hangouts are a simpler and faster options. The only people frequently on the phone are those talking to external people (sales folks, customer reps, etc). I guess those "calls could be monitored for quality" but that has little to do with the panopticon-like claim you are making.

Also, in the context of meetings, people say the phrase "let's take this offline" all the time, indicating that they don't want to start some (possibly long) side discussion in a meeting with multiple participants.

Comment Re:Does no one actually read the articles? (Score 1) 115

Wrong.

It works like this: Google makes you scan several of your friends in several outfits and tag them.

Now Google has a database of, your friends and social circle; your friends faces; your friends cloth shopping habits for direct ad targeting

The original sources in the TFA don't agree with you:

This fingerprint is constructed by a smartphone app which snaps a series of photos of the user as they read web pages, emails or tweets. It then creates a file – called a spatiogram – that captures the spatial distribution of colours, textures and patterns (vertical or horizontal stripes, say) of the clothes they are wearing. This combination of colour, texture and pattern analysis makes someone easier to identify at odd viewing angles or over long distances.

Usefully, in terms of protecting people's privacy, the fingerprint changes every time you change your clothes, so you can be anonymous again whenever you wish.

"A person's visual fingerprint is only temporary, say for a day or an evening," says Nelakuditi.

And you have nothing because this feature will probably only work 5% of the time

Also from the TFA:

In early tests using 15 volunteers, the team identified people 93 per cent of the time, even when they had their backs to the headset user.

I guess it is easier to make stuff up than to read.

Comment Re:Come on Google, not even ISO8601? (Score 1) 333

The example using a Windows drive letter was probably not added by an engineer, since the use of Windows in engineering is very close to zero. Regardless of who added it, it still serves its purpose as a short example, so there wasn't a reason to change it.

FWIW, Google's most common internal date format is:
      YYYYMMDDxHHMMSS
Where x is "s" for standard and "d" for daylight savings time. It sorts correctly even across DST shifts.

Of course, using dates for any reason other than informational hints is not considered a good idea -- time and date will vary over the globe at any given point. All data files will have internal records with unambiguous timestamps, but the name gives hints to someone doing maintenance work. If need be, it is also good enough for very coarse cleanup rules (delete stuff > 30 days).

Comment Re:better at saying no? (Score 1) 89

If the government started raiding your bank account, the correct reaction would not be to store your money in your mattress, nor to ask that banks hold less money.

The government can't search the inside of my locked car just because it is parked on the street, but when effectively the same thing happens electronically it's open season.

Property laws need to be updated to reflect the reality that many people want to store their email, photos, and other account data on a server somewhere.

The lawmakers have quite purposely dragged their feet on updating the relevant laws, while law enforcement uses outdated legal analogies to exploit loopholes in laws that didn't foresee the present reality.

Comment Re:Y'know (Score 2) 76

There seems to be very little misunderstanding if I just type your actual question:
    https://www.google.com/search?q=convert+from+a+WPF+Visual+to+a+Windows+Metafile

One thing that I think trips up people who used web search for a long time is that you drop words you don't think are important for keyword searches, but that actually hurts now that search engines use more than keywords. Keyword spam killed keyword search a decade ago, and regular people could not use pure keyword search anyway; so now (whether we like it or not) all search engines try to operate at more of a semantic level. If you go in with that mindset you can still find almost anything within a few tries.

Comment Re:Are you sure that "relevance" is in there? (Score 1) 67

Try this query instead:
    https://www.google.com/#q=men's+blazers
The entire first page is full of items that are exactly what you are looking for.

As the web and search engines both evolve, you may need to change the way you search to get the same information. Something that worked before may not work now, and the critical words or phrases to get the best results are still there but they aren't the same as what they were in the past.

In your particular example, the exclusion is far too weak, as "women's blazers" matches [blazers -ladies], and once you start using unusual queries (very few people will use exclusions) the search engine will tend to be more literal since it doesn't have the statistics of many previous searchers using those terms to go on.

Comment Re:And I want a pony... (Score 1) 177

Google Now is an example of a product that could not exist without data sharing. The premise is that it cross references data to make timely suggestions, such as letting you know when you should leave for the airport if you have a flight, and if your flight is on time. It can do this even though you never explicitly told it you have a flight or made a calendar entry.

Comment Re:Why neural networks? (Score 2) 95

Well, the 90s are over too, and we have larger datasets now. With "large scale" SVMs still being measured in 10s of thousands of examples, you can see why companies with 4 orders of magnitude more *users* (let alone data items to classify) would need to use better scaling techniques. The older algorithms, when coupled with more modern minimizers, tend to fare well in comparison to the much smaller models you can train with more advanced techniques.

Also, as a researcher, you should recognize the adage about the actual order of importance for getting machine learning to work:
(1) picking the right features.
(2) getting enough data
(3) the learning algorithm

People love to talk at length about picking "the best" #3, when really you need to consider answers for #3 that let you do well on #2 and #1.

While I was a bit surprised to hear this Google project used networks (though not backprop trained NNs btw, which was the 80s fad), Andrew Ng is on the author list and he's a pretty smart guy (if you've done anything with reinforcement learning in the past 10 years you've probably run across his work). So I'm pretty sure they considered various options before they built something to run on 16K cpu cores.

You can read the ICML paper here:
http://research.google.com/pubs/pub38115.html

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