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User: espressojim

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Comments · 336

  1. Re:Rotate on Are Relational Databases Obsolete? · · Score: 1

    That's all great until you decide you need to record something new about Bob. Then you're stuck...adding a column to your table? One of the projects I've been working on is for phenotype storage (which is obserable characteristics of an individual.) For example: record a person's height, weight, eye color, age. What you do in essense is have types of data (height, weight), with values for a person (6, 150), and units (feet, pounds.) That way, you can store as much info as you need. These type-value combinations are extremely powerful, as you can store just about anything, and you can properly index them to get very good performance.

    If you have huge amounts of data that isn't going to change, then maybe you could have a warehouse with a lot of attributes all flattened out (which would certainly increase query speed), but you sacrifice a TON of flexibility.

  2. Re:and if you have a slashdot account on Charging the Unhealthy More For Insurance · · Score: 2, Informative

    If you're 5'11, and you weigh 133lbs, I'd suggest you eat some food. I'm only an inch taller, and my normal weight is 175-180 lbs. I can't imagine being 40 lbs lighter...I'd be a stick, and look much like christian bale in the machinist weights ~125, and he looks absolutely sick (like he will die at any moment.)

    In short, thanks for the strawman.

  3. Re:RTFA on Small Electric Car May Usher In Big Changes · · Score: 1

    Or, you're like me and my wife. We drive 100 miles every 2 weeks or so. We both take public transit to work (I mostly bike for 9 months of the year), and we only drive to pick up groceries, occasionally visit friends in town, etc.

    We're thinking we can go carless for a while before we get our next car, and this would suit the vast majority of our needs. If it's cheap enough, we can rent a car for the long haul rides at high speed.

  4. Re:Hang on a Minute... on Humans Can Still Out-Bluff Machines · · Score: 1

    I think it's:
    Whatever it picked for the last move, it assumes you should pick whatever "beats" what it picked. So, you pick whatever beats what it would pick to beat what you picked.

    It's not that far of a circle, but unless I'm just lucky, I got 8 in a row that way.

    1/3*8=1.05X10-4

  5. Re:Favorite MST3K Line? on MST3K is Back, Sort Of · · Score: 1

    Gamera is really neat! He is filled with turtle meat! We all love you, Gam-er-a!

  6. Re:Now all we need to do on Smart Car Coming To the US In Jan. 2008 · · Score: 1

    I watched the entire video, and the final comment is that the driver/passengers probably would not have survived, regardless of the way the car looked.

    I take it people didn't have the stamina to watch the entire 5 minute video, and just saw the car bang a wall and not explode. As I told my wife last night: "You can build a steel cage and drop it 20 stories, and the cage will come out fine. Now, when you put somebody inside, the cage is ok, but they are jelly."

  7. Re:telling Apple would be insane on Apple Safari On Windows Broken On First Day · · Score: 1

    I imagine the penis pill overdose being a far more nasty death than the polonium...

  8. Re:How about... on MacBook Pro Gets Santa Rosa Chipset, LED Screen · · Score: 1

    Yes, and the question is: is the support DX8.1, DX9, partial DX9, or what?

    Fusion (VMWare) has DX8.1 in their latest (a few months old) beta. I think Parallels may actually have DX9. I'll know as soon as it's released, as my workplace has the maintenence contract.

  9. Re:Charge! on Windows-Based iPhone Rival for Business Users · · Score: 2, Informative

    QFT!

    I have an 8525 as well, and am pretty happy with it, especially with the data plan.

    That said, I'd love to have a bit more resolution than 320x240. 320x480 sounds damn nice.

    (As AT&T users, we at least can trade up though, I hope!)

  10. Re:Is Google broken today? on RAID Vs. JBOD Vs. Standard HDDs · · Score: 2, Interesting

    Xraid does this as well, if you buy an infrant box. I have one for my media center. You can put 1 disk in the box, and it's just an enclosure. 2 disks is mirroring, 3+ disks = raid5. You can upgrade each disk like RAIDCore, and when they are all at the new size, the total raid size is larger.

  11. Re:I'd give this thing at least 6 months in the wi on iPhone Release Date Is June 29 · · Score: 1

    I got mine for $140 (amazon has nice deals), and I figure that if I'm not thrilled with it enough to pay the $$$ for an iPhone, I can just transfer the plan to an iPhone (since they are both Cingular/AT&T)

    I needed a cel right away, but I can see why you would want to wait - I was trying really hard to wait, but after dropping my phone in a puddle, it was a choice between going without a phone (not going to happen) and getting *something* approximately useful.

  12. Re:I'd give this thing at least 6 months in the wi on iPhone Release Date Is June 29 · · Score: 1

    The phone has no sound feedback to tell you where your finger is in 2d space. I'm not exactly sure how you'd use that to tell you what number your finger is hovering over...

    As for the ear piece, yeah, that's just one more piece of techno-crap to lug along.

  13. Re:I'd give this thing at least 6 months in the wi on iPhone Release Date Is June 29 · · Score: 2, Informative

    I have the cingular 8525 phone. It has a touch screen.

    When do I look at the buttons while I'm using it? Whenever I'm going through one of those phone based menus: "Press 1 for english". Older phones, I'd keep the phone by my ear and press the buttons. I could generally be doing something else, and not pay much attention to it. Now, I have to either put it on speakerphone (bad at work), or be ready to pull the phone away from my ear, hit the button, then get the phone back into position.

  14. Re:This toilet seat thing is a pet peeve of mine.. on Economic Analysis of Toilet Seat Position · · Score: 1

    I put both the seat and lid down so that nobody can use the toilet without adjustment. That seems more fair to me, but that's the 'everybody suffer' equilibrium.

  15. Re:Occam's Razor applied to this story on Wreck of Australian Warship HMAS Sydney Found? · · Score: 1

    Except that if it's bloody obvious to the slashdot crowd, then it can't be that hard for other agents to figure out. Thus, the idea is bunk.

  16. Re:And they call it "science"? on Boys with Longer Ring Fingers are Better at Math · · Score: 1

    If the absolute difference is small but the variance is extremely low, then you can still confidencely differentiate between two means as their distributions may be significantly far apart. Yes, this is a complete strech, but quite possible. It all depends on how they mangled / poorly communicated their findings, so I'm just guessing...

  17. Re:And they call it "science"? on Boys with Longer Ring Fingers are Better at Math · · Score: 1

    That sample size being predictive is purely based on what level of effect they want to observe, and how many hypothesis they are correcting for.

    If you were to flip a coin, your hypothesis was that the coin was unbalanced, and you flipped 10 heads and 0 tails, that would give you the ability to say with 95% confidence that the coin was biased. The effect was so strong that it was measurable. Now, if you were to measure the coin and get 6 heads and 4 tails, you would conclude the coin was unbiased. If you were to flip the coin 10,000 times and get 6000 heads and 4000 tails (same ratio as above), you'd conclude the coin was biased.

    It's about the magnitude of the effect AND the sample size (and of course your alpha threshold) that let you make a statement.

    So, if they say the difference is significant, then it must not be too small.

    Of course, most papers totally screw up the statistics, so they could be full of crap. And, if they aren't correcting for multiple hypothesis testing, then there's a good chance their p-value would turn into garbage.

  18. Re:2 DVD's? on Genome of DNA Pioneer Is Deciphered · · Score: 1

    If you're cool, you'd diff someone's genome against the reference, then compress that result.

    This isn't the first genome sequenced, and I have to wonder if the coverage is anywhere near as deep as the reference. My guess is that the coverage is 2-3x at best, and they used the reference as a scaffold for assembly anyway.

    This is why the shortcut exists to measure 500K to 1M SNPs per person, since it captures 95+% of the genetic diversity of an individual.

  19. Re:completely torn on Genome of DNA Pioneer Is Deciphered · · Score: 1

    IAAG (I am a geneticist, and a bioinformatician, too), and knowing your complete sequence does give us lots of interesting info about your susceptibility of many genes.

    One thing you (and that's the slashdot you) know is that in the last few years we've had a moore's law ^2 increase in the amount of data we're gathering and analyzing. This is leading us to a huge increase in our understanding of humans and disease. 5 years ago, it was a pipe dream (or a million dollar project) to do a complete genome scan of an individual. It's now common place, and costs just a few hundred dollars (thus, we do it on thousands of individuals at a time to have the sample size for proper statistics and sensitivity.)

    We could look at Craig V's sequence, and tell him about all the increased risk he has. On the other hand, I don't know that anyone in the academic community has ANY love for the guy at all.

  20. Re:Damned if you do.. on EVE Online Scandal Deliberate Frame-Job? · · Score: 1
    The best response to your post is a msg I saw in another forum. These are NOT my words.

    Originally Posted by Malloc Memrel

    This is the first and probably only post on eve-o I'll ever make, as I've never been much of a "Game X Forums" kind of guy, but I had to say this.

    As an ex-Blizzard employee, I am flabbergasted at the extent to which developer presence contaminates the player pool. With WoW there wasn't a line between our player accounts and our personal accounts- there was a wall, a moat, a spike-filled trench, and electrified barbed wire. You so much as tried to enter a developer command into the console, you'd be kicked from the server, your account would be flagged, and unless you had a really damn good rason for attempting to bring developer capabilities into the game your ass was fired. You told no one anything about the game behind the curtain, you never told anyone in-game that you even worked for the company, or your ass was fired. The impetus for crossing that line in eve is entirely beyond me.

    And don't start for a second with "We need to see how things work." Rubbish. You've got one of the most robust test servers known to MMOs, you've got ridiculously fluid interaction from your player base (At least from the bottom-up) and if nothing else you could have internal servers to try things on. Having anyone with even the possibility of developer powers in the public server is nothing short of madness. Having powers above and beyond normal players, or having access to information beyond the average player, is akin to putting water in chocolate- a single drop can cause a whole batch to sieze and it's ruined just like that.

    "But what about GMs?" you ask. Fair enough, they need certain powers to set things right. But they should only ever exist in the game when no other option presents itself. They should be invisible, intangible, a last resort for a coding malfunction or dispute that requires GM omniscience to solve. They should not be people but a service, identifiable only to the point that they can be held accountable for their actions. If you tried to log in as a GM account anywhere but at Blizzard's GM center, hell, if you even hinted that you had a GM account, you'd be canned so fast your head would spin. That CCP would willingly and intentionally contaminate the public player base with what amounts to demi-gods with varying degrees of moral fortitude just boggles my mind.

    The thing is, I know some CCPers here on the american side of things, people I've worked with in the past, and I just feel so sorry for them. I just want to say to them, "What the hell is going on over there? What kind of people are you working for?" but I know it isn't their fault.

    Bottom line, CCP doesn't care. What exactly they don't care about, I'm not sure; it could be that they don't care about people being in a position to abuse powers beyond what normal paying customers can do, or it could be that they don't care about the effect establishing an Old Boy's Club with their closest pals has on the rest of the game, or it could be any number of things. But the inevitable conclusion is that there is some aspect of the past and current troubles that they are simply turning their noses up at.

    The sad thing is, I left WoW for EvE because despite all the work I had put into it, EvE struck me as the superior product. Ironically, I was half wrong and half right. Eve has the potential to be a superior product, but this kind of customer relations seems to spit in the face of everyone who wants to play a game with a firm set of established rules applicable throughout the playerbase.

  21. Notes from a talk on Treadmill Workstation · · Score: 3, Informative

    I saw the guy who is organizing the research on this (NEAT), who gave a 90 minute talk at my institution last year (we study the genetics of diabetes.) I figured this might be an interesting place to share my notes. The notes are slightly raw, but might be of interest (and there's nothing that's under NDA in them.)

    -----------

    Non-exercise activity thermogenesis.

    Uses 2x-3x the calories of exercise.

    Varies by up to 2000 calories between individuals

    Note: most people of the world don't exercise

    Neat explains why an active person can burn 2000 calories more than an inactive person of the same size.

    Occupational NEAT:
    chair bound:300
    seated work: 700
    standing: 1000
    active: 1400
    agricultural: 2300

    Women work a heck of a lot more than men. (peak 500 minutes/day women vs. 320/day men)

    A test that overfed people by 1000 calories a day:
    Some people didn't gain weight, they just increased their NEAT.
    Some central mechanisms may be regulating NEAT.

    There are chemical ways to induce neat (Central Orexin)

    Spontaneous physical activity may not be spontaneous!

    People who fail to increase NEAT: maybe they have a NEAT defect?

    They built sensors integrated into clothing to see what body postures were like.

    Looks like lean people stand up more, and obese subjects sit a lot more.

    Overfeed underweight people, underfeed overweight people ->
            Starting obese people still sit more, Starting lean people tend to stand more.

    Perhaps fat people just have 'poor NEAT adaptation'

    Think about this: there's no inherent reason why we ought to be sitting all the time.

    Are there ways to get us all out of our chairs?
    1) Persuade them to stand (behavior modification)
    2) Get rid of the chair (environmental change)

    ------1------
    STRIPES
    Targeted goals help people change behavior.
    Select->Target goals->Reward->identify bariers->Plan->Evaluate->Sustain->Target Goals
    Lady starts at 3 5 second walks a day.
    She's working up to 5 5 minute walks over time.

    Barrier: if you decide to walk your dog in the rain,the rain is the barrier. If you're massivly fat, tying shoes might be the barrier.

    Planning is representative of prioritization.

    ------2-------

    The way you change the environment - do a walk and talk meeting program (at least you get something out of it!) "Walk and talk tag - you are not to be interrupted"
    Make this competitive so that the more times you have meetings that are walk and talk, the more you are 'winning'. Yet, the number of meetings will decline.

    --------------

    They now have a small unit that can measure your posture, etc and measures NEAT every 10 seconds.
    Allows complex phenotyping of people moving, etc.

    Ipod earpiece that detects activity level of the user - for each mile they walk, they get a free download. Kids get into the competition to get free downloads.

    Imagine computers that are on treadmills (or exercise bikes), so you can stand and walk all day instead of sitting, People pick 1 mile an hour to work out, and burn 100 calories an hour.

    If you design a school so kids can stand, they will move around a lot.

    Now, there are Soda machines that say "Thirsty" - this is a cue to your brain to make you think about it, then purchase -also snack machines that say "hungry"

  22. Re:Hell on MIT Media Lab Making Programming Fun For Kids · · Score: 1

    I think I grok a bit of what you're saying in your descriptions of what isn't a narrative context for you. I do also often conceive of things like messaging between objects in a very visual way, and don't think about things like graph theory using words. Actually, I'd draw a parallel to music, where I often think in riffs, not in individual notes.

    I guess my concept of a narrator isn't someone who's whispering "That loud sound you hear...the word for that is 'car'", as much as I might see an image of a car based on a sound. To me, that's still narration - you're just shortcutting language. But that's still "dialog". Your mind isn't calm if you're interpreting your surroundings. The idea of meditation is to let go of that entirely and be unconcerned by it. That's why naming mediation is interesting: you force yourself to say "Car", and in doing so, you let go of it. It's like owning your thoughts and perception.

    I'd hate to try and write code by describing in words patterns and ideas that I'm working on. It makes much more sense to treat them abstractly, more like your crayon.

    Of course, if someone can't think at all abstractly (and I believe that it is a learned skill, to some degree), that's going to be a problem.

    Thanks for an interesting post!

  23. Re:If MSFT were smart... on Microsoft Says Free Software Violates 235 Patents · · Score: 1

    Ok, so I tried to make an analogy, and people got caught in the "HTML? I KNOW this!" syndrome. Let me slim it down to clue by four dimensions:

    Microsoft fully supporting all OS's makes as much sense as all web apps supporting all browsers.

  24. Re:Hell on MIT Media Lab Making Programming Fun For Kids · · Score: 1

    In my teens I tried "meditating" a few times and always found it frustrating that the guides made no sense, with phrasing like "stop your internal monologue"; I finally realized that while most people apparently can't shut the voices in their head up, I have no internal monologue that needs silencing, and consider that a BIG part of what makes me a decent coder)

    You have no internal monolog? What do you do when you think, speak out loud without any thinking ahead of what you're going to say? Let's say you shut your eyes...do you notice anything around you? If you notice anything about your surrounding, then that's part of your monologue. Say you notice a car going by. You're not calm and empty, but you are conscious of the fact that there's a car nearby.

    I've never talked to anyone who was absent an internal monologue.

    So, this isn't a dig, but that just sounds...unusual. If more people on slashdot are absent that trait, I'd love to hear about it.
  25. Re:If MSFT were smart... on Microsoft Says Free Software Violates 235 Patents · · Score: 1

    How does lynx do with AJAX, Flash, etc? Does that mean you don't use those new technologies? Or do you provide alternate navigation systems for lynx? Can you afford all that extra time?