TED Talk: How reliable is your memory?

The legal system heavily relies on eyewitness testimony. The erroneous thinking is that human memory works like a movie: events are committed to an infallible permanent storage system. Instead each time we recall a memory, we recall the memory of an earlier memory. If a detail was missing, then we can fill in information. The danger is that a questioner can lead the witness to plant false information and make people absolutely certain of details that convince a jury but never actually happened. People freed by DNA evidence often were convicted by evidence heavily reliant on eyewitnesses.

Elizabeth Loftus studies false memories.

It might be interesting to control behavior to make people feel disgusted by soda or sugar and enjoy leafy green vegetables. Of course, it is also pretty ethically questionable.

Windows Module Installer

A pain in my side over the past year finally forced me into addressing it. Windows Module Installer runs as TrustedInstaller.exe and for most cases just does its job which is to keep in touch with the Windows Update service and apply the updates sent to it.

Occasionally they develop a memory leak and consume RAM until someone intervenes. We have about 140 servers. About 22 over the past two months about 20 showed this behavior. Only when it uses about 2GB of the 10GB we allocated to these servers do I usually have to intervene. That has been about 3 times over the past 2 months and ten over the past year.

Using Yaketystats to see the trend was far worse than I had noticed, I decided we needed to do one of two things.

  1. Shut it down. Start them when we need them. Shut them down again when we do not. Benefit is we do not have to worry about them getting out of control consuming resources. Unfortunately those wanting to push out updates will have to add a step to start them before pushing them.
  2. Recycle. Routinely shut them down and start back. Relatively easy to automate, so set it and forget it. Recycle

Well, it gets much worse. First, running the commands work inconsistently. For example, I ran

Set-Service TrustedInstaller -startuptype “Automatic”

against every host in a development system. As is my habit, I ran a check to make sure it worked. It did on two of the five. So I ran it again. The other three were fixed. So I did that same process on another development system with five hosts. Three of the five worked the first time and the other two the second. The pattern held true for another three systems all with five servers each. Setting the startuptype to Manual worked the same inconsistent way.

My check:

Get-WmiObject -ComputerName $computer win32_service -Filter “name = ‘trustedinstaller'”

Second, stopping and starting them does not appear to stick. Several minutes after I have stopped all of the services they appear to back in the prior state. Those who were not running stay not. Those who were running are again. And if I start all of them, then at some point those who were not running stop again.

Guess I have a lot of research ahead of me. 🙁

TED Talk: The riddle of experience vs. memory

We tend to think of memory the same as an audio-visual recording of the events in our life. Unfortunately, it is not. Memory captures snapshots which influence what we recall later. So a relatively good experience with a particularly bad ending can bias memory to recall the whole as bad.

If the below video does not display, then try Daniel Kahneman: The riddle of experience vs. memory.

Communication

A while ago, there was some kind of difficulty understanding why we (the DBAs) and another group were unable to read the same words yet not draw the same conclusion. The words in bold are what I wrote on my white board explaining why there was a difficulty.

Communication

  • Vocabulary
    • Standards: Words have agreed upon meanings which we refer to as the definition. However, the same word can have different meanings depending on context. Therefore we need…
    • Experience: Past usage by self and others determine which definition is appropriate during any specific event.
      • Mental Filters: We cannot handle everything which happens to us at once, so our brains cheat. Filters drop everything except the expected. Which filters are in use to expect certain things can be as easy as beginning a conversation with certain keywords.
      • Recall: Getting past the filters gets to memory retrieval.

A lack of common experience means we get primed for different mental filters. Therefore to have a good conversation, everyone needs to draw on common experiences, a process called framing.

This is pretty much as far as we got, I think.

Common experiences could be physically shared. An example could be: “Do you remember the meeting 7 months ago when discussed changing the sourcedid.source for those four schools?” The mental filters for concepts discussed in that meeting are primed.

Common experiences could be metaphorical. Anything someone else should have lots of experience using makes a useful way to convey information without having to go very far. Unfortunately, it is hard to know in advance how much someone actually knows.

Linux Adventure Part 1

For about a week now I’ve been without my personal laptop as anything much more than a brick. I think tonight I am going to copy off the pictures and other important information to my desktop. From there, anything I do to make the situation worse will no longer matter as much.

Monday night, I shutdown the laptop. Microsoft Vista Automatic Updates said it was working on some updates post-logout. Rather than babysit, I went to bed. I should have babysat it.
🙁

The next morning, Tuesday, starting the computer told me I had a corrupted or missing \boot\BCD. The Boot Configuration Data file is pretty important, as without one the Windows operating system doesn’t even give me a command prompt. After some research I found out I needed my Windows installation DVD only 250 miles away. This caused me so much distress I even forgot I had a spare computer with me.

So I decided to download a Linux Live CD and use that while stuck away from home. At least I would be able to research the problem and possibly fix it later. The first Live CD I tried was a downloaded iso flavor called Knoppix, I remembered from many years ago. Ick. Knoppix Adriane is intended for the visually impaired slipped by me, so the computer reading everything got annoying extremely quickly. Finally turned off the reading stuff, but I had a new problem. Wireless wasn’t working.

Macintosh LC III … And I was out of CD-Rs.

So a newer memory was a few years ago, a friend with a barely functioning Macintosh LC III (pictured right) wanted to get her stuff off it. She brought it up again a few times since, the most recent occasion to ask me to explain why her Windows computer cannot just read 3.5″ floppies from the Mac without any computer-ese. A coworker mentioned a Live CD of CentOS could mount the drive and transfer the data.

So, I downloaded an iso of the CentOS Live CD while I went to the store to get some disks to burn. While starting up CentOS, I downloaded Ubuntu just in case this second Live CD failed. It was a good thing because the CentOS Live CD was prettier without any improvement in getting on the wireless.

Nor was the Ubuntu Live CD any better.

By this point, I had found a site offering a torrent to a Vista Recovery CD. The quandary was to go back to Windows or stick with Linux. The recovery CD off a random web site could just not work or at worst infect the non-functioning computer. So I installed BitTorrent and downloaded the recovery CD. I tried the Startup Repair, System Restore, and Command Prompt (to manually rebuild the booter). Since this failed, I decided Windows Vista was dead.

So I started looking into how to make Ubuntu work for me.

Linux Adventure Part 2Linux Adventure Part 3 [SOLVED]

Facebook Usernames

If you cannot find me, then you are not looking. If you search on Facebook for Ezra Freelove, then I am the only result at the moment. Maybe all you knew was Ezra and the city where I lived? Facebook search is not so great you could find me through my first name plus something else you knew about me (other than email or city). Probably this is for the best. We don’t want to make it too easy to stalk people, right?

Allowing users to make a username is a promotion. The blogosphere making a fuss over all this is a Chicken Littleesque. Sure Myspace, Twitter, and a number of other sites have addresses with usernames in them. No one is forcing people opposed to having one to make one. Only in the past month could one choose a username for one’s Google profile. Prior to that it was a hefty large number of numbers.

I think the reason some people prefer usernames comes down to elaborative encoding. To retain something in memory, we associate that something with existing items in memory. Short-term memory has only about 7 slots and digits are each a single item. Assuming a single incrementation per account created and over 200 million users, using a numbers means there ought to be 9 digits worth of numbers to memorize. Words occupy a single slot in short term memory, by far simplifying remembering. Which would you rather try to remember 46202460 or ezrasf?

An argument against usernames comes down to using the memory of the Facebook database or other computer memory. Computer memory is better than human memory for stuff like this.

All of these work and go to the same place:

  1. http://www.facebook.com/profile.php?id=46202460
  2. http://www.facebook.com/ezrasf
  3. http://www.ezrasf.com/fb

Pick your poison. Enjoy.

Forcing Weblogic’s Config.xml

Let’s nevermind why I am working on this in the first place. Namely…

  1. the Blackboard Learning Environment Connector introduced using the hostname and port for applet URLs in Vista 8 Blackboard,
  2. Blackboard dropped WebCT’s support for using a different port for an application when behind a load balancer.
So we found out we could use port 443 as the SSL listen port because we terminate SSL on the load balancer, Weblogic would not bind to port 443, but the Vista application would be tricked into displaying to the end user what we wish.
In the past week, we have put the correct config.xml in place multiple times and found it reverts back to an older version with the port we don’t want. The first time, I was lazy and did not shut down the Weblogic admin server because… well… that was the lazy practice I had used in Weblogic 8.1 and had not had a problem. My shell record shows it was correct then. Within hours it wasn’t correct anymore.
So, we found a few things…
  1. a copy of the config.xml is stored WEBCTDOMAIN/servers/domain_bak/config_prev/,
  2. all files in WEBCTDOMAIN/config/ are pushed to the nodes,
  3. to change this value in the Weblogic console requires turning on a feature to bind to the SSL listen port.
Additionally, we think research into this would show Weblogic stores this information in memory. It will then write changes it makes to the file back to disk on the admin node (destroying our change). Managed nodes will then pick up the change.
The latest shot at this is to purge the #1 and #2 on both the admin server and managed nodes, put the right file in place on the admin nodes, and see if it reverts again.
So now I’ve got to write a script to periodically check if the nodes have the wrong listen port and email us should it change.

The Outsourced Brain

 

I have relinquished control over my decisions to the universal mind. I have fused with the knowledge of the cybersphere, and entered the bliss of a higher metaphysic. The Outsourced Brain – New York Times

Facetiousness aside, it does point out how others are consumed by these tools rather than consume them.

Tom-Tom is pretty cool, but I find the adventure of figuring out where I am going by using a map more fun but not nearly as fun as mentally envisioning where I am located based on memory and probability from what I little know of the area. I’ve ridden in a car where the people had a Tom-Tom or other GPS system. I’d tell them to ignore it and go another way, but they wanted to go where the GPS said to go… So we did and got there by a route I would not have chosen.

Some people suggest one should keep a journal and dump out all the concerns for a good night’s sleep. A low tech external brain if you will… I find writing all that down keeps me up well into the night. 🙁 Outsourcing all thinking? No thanks… I need to keep my brain active to stave off dementia. (Note to self: Pick up Sudoku or Brain Age pronto.)

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RE 2007: Top Ten Disruptive Trends

Rock Eagle 2007

Keynote – David Cearley, Gartner

Way too many unfamiliar acronyms an terminology. It moved really fast without spending much time to explain anything.

Disruptive trends selected by timing, speed, and likelihood.

  1. Multricore to fabric – Core on processors will double every two years through 2015. Applications will have to adapt to multi-cores. Software licensing around cores, influences purchasing. Sets the stage for hybrid systems where power core and cell processor cores integrated. 3D chip (cube of cores) is coming. Next evolution in blade technology is to have shared memory. Fabric allows dynamic allocation and partioning of memory and processors and I/O for servers.
  2. Tera-Archicture Compute Element – Self-assembling and self-managing applications.
  3. Service Oriented Architecture (SOA) – Developers will create modularized applications for a dynamic, flexible environment. They will need new tools, training, vizualization. Way platforms are built change. Vendors will not off the components, instead, we will need to create these ourselves. Pervasive… It will hit every level of the enterprise.
  4. Open Source – Development tools, Application Servers, Security, Operating Systems currently hold the most maturity. It will have viable alternatives for 80% of software choices.
  5. Web 2.0 – Biggest disruption over next 10 years as it has been the last 10 years. Web 2-.0 – applications built on web tech and design prin that may exploit community based development and social networking and/or new web-based business models. Long-term journey for increasing community, business involvement. Web Oriented Architecture = SOA + WWW+ REST. WOA replaces complex public API calls in current SOA model in favor in simple interfaces.
    1. Mashups – Composite applications on the web. Classic portal model built complex APIs. Mashups use WOA using RSS and Atom to provide feeds of info. Typically used in simple, high value applications.
    2. Web Platform – Everything as a service. Service providers offering infrastructure. Google and IBM offering a service to universities to build applications using the Googleplex infrastructure and IBM support.
    3. Symantic Web – Microformats – Simple way offering metadata.
  6. Social software – RS, podcasts, folksonomies, blogs, wiki, social bookmarks, content rating, prediction parket, taste sharing, social networks. The Participatory Web. Threadless makes user designed teeshirts sold back to users. How can we create communities and harness the power of the collective. Start with a purpose. Nuture the community. Open socially mediated spaces work better than technically managed systems. Have a tipping point plan.
  7. Netowrk Virtual Worlds – Games – People are 3D, have a profound impact on people.
  8. Displays – UIs are changing.
  9. Video – Counterfeit reality – how are you sure video has not changed?

Quotes to Make You Think

Also make great signature files! Additional collected quotes are under the blog’s quotes category. Drop a comment to suggest something.

Organized alphabetically by first major word.

Anonymous/Unknown Author

A

Accomplishing the impossible means only the boss will add it to your regular duties.

According to my calculations the problem doesn’t exist.

Adult: A person who has stopped growing at both ends and has started growing in the middle.

Advice is free: The right answer will cost plenty.

After all is said and done, more is said than done.

All the darkness in the world cannot extinguish the flame of a single candle.

Almost anything is easier to get into than out of.

Always remember that you’re unique. Just like everyone else.

Always try to be modest. And be darn proud of it!

Ambition is a poor excuse for not having enough sense to be lazy.

B

Be nice to your kids. They’ll choose your nursing home.

Before you criticize someone, you should walk a mile in their shoes.That way, when you criticize them, you’re a mile away and you have their shoes.

The best part about procrastination is that you are never bored, because you have all kinds of things that you should be doing.

Blessed are the pessimistic for they hath made backups.

By the time a man realizes that maybe his father was right, he usually has a son who thinks he’s wrong.

C

Children may close their ears to advice, but they keep their eyes open to example.

A clean desk is a sign of a cluttered desk drawer.

Cleaning the house while your kids are still growing is like shoveling the walk before it’s stopped snowing .

A clear conscience is a sign of a bad memory.

A company is known by the people it keeps.

A conclusion is the place where you got tired of thinking.

Confidence is the feeling you sometimes have before you fully understand the situation.

A conscience is what hurts when all your other parts feel so good.

The customer is always right but not always pleasant.

D

Don’t be irreplaceable; if you can’t be replaced, you can’t be promoted.

Don’t hate yourself in the morning – sleep till noon.

Duct tape is a lot like the Force. It has a Dark Side, it has a Light Side, and it binds the galaxy together…

E

The early bird may get the worm, but the second mouse gets the cheese.

Endeavor to so live that when you die even the undertaker will be sorry.

Ever stop to think, and forget to start again?

Every time I think I’ve hit the bottom, someone lends me a shovel.

Everyone seems normal until you get to know them.

Experience is a hard teacher because she gives the test first, the lessons afterwards.

Experience is something you don’t get until just after you need it.

F

Few women admit their age, Fewer men act it!

A filing cabinet is where papers get lost alphabetically.

Four-word story of failure: Hired, tired, mired, fired.

G

Generally speaking, you aren’t learning much when your lips are moving.

Go the extra mile. It makes your boss look like a slacker.

A good test for conversation: if you wouldn’t write it and sign your name to it, don’t say it.

Good resolutions are often checks drawn on an account with insufficient funds.

The great essentials of happiness are something to do, something to love and something to hope for.

H

Hard work has a future payoff. Laziness pays off NOW.

The haves and the have-nots can often be traced back to the dids and the did-nots.

The highest reward for man’s toil is not what he gets for it but what he becomes by it.

How many of you believe in telekinesis? Raise my hand….

I

I don’t exaggerate. I just remember bigger than most people.

I don’t suffer from insanity, I enjoy every minute of it!

I have a mind like a steel trap – rusted open.

I haven’t lost my mind. It’s backed up on tape somewhere.

I pretend to work. They pretend to pay me.

If at first you don’t succeed, destroy all evidence that you tried.

If at first you don’t succeed, give up, no use being a damn fool.

If at first you don’t succeed, skydiving is not for you.

If both of us thought alike, one of us would not be necessary.

If everything seems to be going well, you have obviously overlooked something.

If nothing ever sticks to TEFLON, how do they make TEFLON stick to the pan?

IF Pro is the Opposite of Con, What Is The Opposite of Progress? Congress!!

If you’re going in the wrong direction, God allows u-turns.

If you ask a question you don’t want an answer to… expect an answer you don’t want to hear.

If you don’t learn from your mistakes, what’s the point of making them?

If you find a path with no obstacles, it probably doesn’t lead anywhere.

If you tell the truth, you don’t have to remember anything.

If you think nobody cares if you’re alive, try missing a couple of car payments.

If you were somebody else, would you want to be friends with you?

Indecision is the key to flexibility.

It has been determined that research causes cancer in rats.

It is harder to conceal ignorance than to acquire knowledge.

It is when we forget ourselves that we do things that are most likely to be remembered.

It takes less time to do a thing right than to explain why you did it wrong.

It will do no good to get on the right track if you are headed in the wrong direction.

J

Just because someone doesn’t love you the way you want them to doesn’t mean they don’t love you with all they have.

K

Keep your ideals high enough to inspire you and low enough to encourage you.

L

Language is a wonderful thing. It can be used to express our thoughts, to conceal our thoughts, or to replace thinking.

Laugh alone and the world thinks you’re an idiot.

Leaders go down in history — some farther down than others.

Leadership has been defined as the ability to hide your panic from others.

Life is a sexually transmitted disease with a 100% mortality rate.

Life is complex: part real, part imaginary.

Love may be blind, but marriage is a real eye-opener.

M

Many people quit looking for work when they find a job.

The measure of man’s real character is what he would do it he knew he would never get caught.

The mistake a lot of politicians make is forgetting they’ve been appointed and thinking they’ve been anointed.

The more people I meet, the more I like my cat.

The more you know, the more you know you ought to know.

N

Never miss a good chance to shut up.

No matter how far money goes, it still can’t go as far as the next paycheck.

No matter how much I care, some people just don’t care back.

No one is listening until you make a mistake.

O

Of all the things you wear, your expression is the most important.

One of the mysteries of life is how the boy who wasn’t considered good enough to marry the daughter can be the father of the smartest grandchild in the world.

One reason folks get into trouble is that trouble usually starts out being fun.

One trouble with the world is that so many people who stand up vigorously for their rights fall down miserably on their duties.

The only time the world beats a path to your door is if you’re in the bathroom.

P

People who do the world’s real work don’t usually wear neckties.

People will accept your ideas much more readily if you tell them that Benjamin Franklin said it first.

Poor planning on your part does not constitute an emergency on my part.

Practice makes perfect, so be careful what you practice.

A professor is one who talks in someone else’s sleep.

The quickest way to get a lot of undivided attention is to make a mistake.

People who wonder where the younger generation is headed for would do well to consider where it came from.

The problem with the gene pool is that there is no lifeguard.

Q

R

The really productive ups and downs are getting up in the morning and down to work.

The reason we never see ourselves as others see us is that we’d never believe what we saw.

A reckless driver is a person who passes you on the highway in spite of all you can do.

S

Save time… see it my way.

Some people get lost in thought because it’s unfamiliar territory.

Some people spend the first six days of each week sowing wild oats; then go to church on Sunday and pray for a crop failure.

The sooner you fall behind, the more time you’ll have to catch up.

A sure-fire formula for making a good speech: have a good beginning and a good ending–and keep them as close together as possible.

To steal ideas from one person is plagiarism; to steal from many is research.

A synonym is a word you use in place of one you can’t spell.

T

Tact is the ability to close your mouth before somebody else wants to.

There can’t be a crisis today, my schedule is already full.

There is absolutely no substitute for a genuine lack of preparation.

There is nothing so comforting as the patter of little children’s feet about a home, because the moment the sound stops one knows that they are up to something they shouldn’t be.

There is nothing that upsets a person quite as much as having company drop in and see the house looking as it usually does.

There needs to be fewer Republican Senators and fewer Democratic Senators, and many more United States Senators.

Thinking is when your mouth stays shut and your head keeps talking to itself.

This isn’t an office. It’s Hell with fluorescent lighting.

Those who complain about the way the ball bounces are usually the ones who dropped it.

Time may be a great healer, but it certainly is no beauty operator.

Trains stop at train stations
Buses stop at bus stations
On my desk is a workstation.

A true friend is one who thinks you’re a good egg even though you’re slightly cracked.

U

Usually I try to take it one day at a time, but lately several have attacked me at once…

V

W

Warning: Dates in Calendar are closer than they appear.

We hang the petty thieves and appoint the great ones to public office.

What most people want these days is less to do, more time to do it, and more pay for not getting it done.

When adults act like children, they are called silly. When children act like adults, they are called delinquent.

When computing, whatever happens, behave as though you meant it to happen.

When our children are old enough not to say or do anything in public to disgrace us, they have reached an age when the things we do and say embarrass them.

A wise man learns by the mistakes of others, a fool by his own.

Why is ‘abbreviation’ such a long word?

Wild horses couldn’t drag a secret out of most women. Unfortunately, women seldom have lunch with wild horses.

With every right there is a responsibility. Just once, I wish someone would demand his responsibility.

A woman wants one man to meet her every need. A man wants every woman to meet his one need.

A woman will pay $1 for a $2 item she doesn’t want. A man will pay $2 for a $1 item he DOES want.

Work is the easiest thing man has ever invented to escape boredom.

Work like you don’t need money,
Love like you’ve never been hurt,
And dance like no one’s watching.

X

Y

Years wrinkle the skin, but lack of enthusiasm wrinkles the soul.

You are only young once. After that, you have to think up some other excuse.

You can’t keep people from having bad opinions about you, but you can keep them from being true.

You cannot build a reputation on the things you are going to do.

You cannot make someone love you. All you can do is be someone who can be loved. The rest is up to them.

You only live once, but if you live right, once is enough.

Z

Misc.

Comment from a correspondent in Australia on the U.S. political scene: “Thank God you got the puritans while we only got the convicts.”