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Journal Journal: Transcribing WW1 biography 5

My great great grandmother wrote a biography of her three brothers killed in WW1. I'm typing it all into a LaTeX editor and will be adding a family tree along with a sketched outline of their lives and newspaper clippings.

A best-seller it ain't, but it may interest a few here as these guys show autistic traits and are geeks from just over a century ago.

User Journal

Journal Journal: Review: Bird of Prey 4

TL;DR version: 80s dystopian techno-horror geekfest with relatively accurate portrayal of cryptography and hacking.

Long version: Pretty much the same as above. It's a low budget BBC production that scores highly on accuracy of methods, exploits and technology of the era, insofar as TV ever gets.

The premise: a low-rank civil servant, tracking down bank fraud, discovers a trail of blackmail, corruption by intelligence services, deliberate weaknesses in security and criminal gangs operating with impunity.

By season 2, he's keeping himself alive the same way the Wikileaks journalists did, his wife has what we would call severe PTSD and the body count isn't slowing down.

Given trauma was barely understood in the 80s, the portrayal there and the bouts of temporary insanity are extremely close to what happens, again allowing for this being TV drama and not a psychological documentary.

The storyline deals with cryptography, surveillance society, backdoors and institutional corruption. All hot button issues of today. It even covers the inevitable issues of DIY security.

The conspiracy aspect is a trifle OTT bit, again, it's TV. It has to be to have a program.

It's geared to nerds, geeks and dystopia lovers, though, rather than the mainstream. I saw more reviews in computer journals than in TV guides.

It's the sort of show that would really need updating to be watchable by modern audiences, but fans of older shows would likely enjoy it.

It wasn't unusual for the time, which is the great thing

The 80s were a time for really bleak geek television - Codename Icarus (for the younger viewers), Edge of Darkness, Terry Nation's Survivors, Threads - all productions in this decade.

(Even late 70s had some dark stuff, Blake's 7, The Omega Factor, Day of the Triffids, and ABC/Central's Sapphire & Steel were not light watching. You have to go back to the start of the decade and Doomwatch to see a plausible contemporary dystopia.)

The stuff of a thousand bad dreams, these shows.

User Journal

Journal Journal: Teaching history via RPGs 3

There's a new RPG pack under development, called Carved In Stone. Well, it's called an RPG pack, but basically it's a fairly comprehensive history lesson about the Picts that can be used in roleplaying games. This is quite a neat idea and it got me wondering.

There were, at one point, quite a few historical wargames (Britannia, Decline and Fall, etc) but they were mostly about large-scale strategy rather than the history itself (which was mostly an excuse for blowing up other people's counters). History lessons via roleplaying games sounds quite an interesting approach and could be used to cover all kinds of events.

The expansion pack isn't out yet (it's still in kickstart) but there's enough information about it to get a good feel for how much depth there is in there. If it's done well, it could be very effective in the same way "...and then the Huns came and beat the sh*t out of the Romans before leaving again" isn't. Unless you're a Hun.

I'd like to get people's views on the use of roleplaying games and which system would be best for such gaming. Rolemaster? Call of Cthulhu? The ever-present Dungeons and Dragons? ("My 20th level mage casts a fireball at the fleeing Scots" sounds ahistorical.)

User Journal

Journal Journal: Consumer Genetics, the current state of play

Ok, so let's start be defining a few terms, as it is obvious from Facebook genetic genealogy groups that people are truly ignorant on the subject. (Not that I believe this is common on Slashdot, where we're all much more knowledgeable.)

First off, most genetic testing is NOT carried out by sequencing all of your DNA, a widespread belief that resulted in outrage on one Facebook group when I pointed that out.

The vast majority of consumer testing is done by SNP genotyping. They look at very specific genetic markers and see if those markers have changed from one base pair to another. That's the only type of mutation looked for and they typically look at only a few.

So we've our first way to group companies: sequencing vs genotyping.

SNPs (single nucleotide polymorphisms) are, as mentioned above, one type of mutation. Another is called STR (short tandem repeat), where a block of DNA is duplicated.

FamilyTreeDNA does both STR and SNP testing, STRs mostly for the Y chromosome. Both can be used for family history.

Most labs, though, use only SNP tests. It's quicker and cheaper than counting repeats but with many of the more interesting ones covered by patents or kept private by other means, there's a lot more secrecy involved.

(Note: This has doubtless led to a lot of unnecessary deaths, as genetic markers indicating a high probability of getting certain forms of cancer are being milked by private companies for profit. Few people get more than one test, so most people won't know if they carry such markers and can't take action in advance.)

So the second piece of jargon is SNP vs STR.

Finally, we come to the different areas of DNA. There are regions that are especially good for ancestrial reserch (mostly non-coding DNA), then there's the exome (which is where most of the protein coding takes place), you've telomeres (suicidal buffers between chromosomes, which have a function in longevity), and so on. I won't list them all.

The Y chromosome is particularly good for ancestry, but only has 9 coding genes left in it. It's possible it will vanish in time, but it seems to be fairly stable for right now.

Most companies test only DNA that is good for ancestral research in the autosomal regions (aDNA, the regions outside the sex chromosomes). This allows you to identify anyone who is genetically connected, but because you (on average) get just under 50% (remember, there's mutations in each generation and that DNA comes from neither parent) of your DNA from each parent, the distance you can track depends on how many markers are tested (very few). Reliability falls off sharply.

YDNA (Y chromosome DNA) tests only test for paternal ancestry, but if two people have a common paternal-line ancestor, it's a lot more precise once you're past about second cousins. It's popular with anthropologists as it's very good for tracking how men have migrated.

mtDNA (mitochondrial DNA) is only inherited through the maternal line. Again, it's very popular, this time for tracking how women have migrated. There are certain forms of mtDNA that are linked to health benefits and others to genetic diseases, so this one tends to be the most controversial of the ancestral DNA tests. It also changes very slowly, so you don't get high resolution on population movements.

These two (YDNA and mtDNA) tests can tell you a lot about whether societies are open or closed, and whether it was men who travelled to find partners, women, or both. So we can know something of the culture of even long-extinct societies.

The data I have been able to find is for 2019. It shows: Myheritage tests for 702,442 autosomal SNPS, AncestryDNA for 637,639, FTDNA for 612,272 and 23andme for 630,132. This is out of a total of 3 billion base pairs. So the best test that year looked at 0.0023% of the genome.

ISOGG produced a chart as well, but it's far older. Their chart is dated around 2013.

Since you inherit a random 50% from each parent, the assumption that this is statistically meaningful for such a small fraction of the DNA is questionable. It seems to work adequately, but I'm not sure what the error bars are.

FTDNA also tests up to 111 STRs on regular tests and 600+ STRs for their "BigY" (it depends on the quality of the genetic sample).

Companies that do sequencing sometimes offer partial kits (in the order of tens of millions of SNPs) or full sequencing (which is what the same suggests). These are rarer and more expensive.

Most DNA companies allow you to access the raw data, some only allow it if you pay vast sums of money, and some don't allow you to at all. Always check in advance.

When you download your own data, you can use public databases to search for matches (either for relatives or genetic conditions). The quality of public databases is less controlled, both in terms of privacy and quality of data. However, corporate databases will usually be smaller for both types of data and will also usually not contain data from rivals. If you want broad data sets, public databases are the way to go.

I've only tested with 23&Me, FamilyTreeDNA, CRI Genetics and Nebula Genomics, so can't tell you anything much about the quality of the other companies.

(Ok, I also tested with uBiome, a microbiome testing company in the US, but they had their computers seized some time back due to fraud. I have no idea what happened to my data on there, or whether there's a way to access it.)

The quality seems to be reasonable for all four.

FTDNA is the most expensive for a lot of things, but has less of a sticker shock than Nebula and gets more data than 23&Me. It looks like there are a few companies that are better for ancestry but it's one of the best and the one the Genomics Project used. They're the only ancestral company that gives you STRs AFAIK and they give you a much more detailed evaluation of haplogroups than anyone else I've tested with.

Nebula does up to medical grade (100x oversampling) DNA testing, so if you want results a hospital will trust, that's where you part with a vast amount of money.

23&Me is good for a lot of medical stuff and if you want to help with research is probably the best.

CRI Genetics produces a lot of data with much higher reliability than most of the others, but you can't access the raw data and their databases won't be as extensive. However, because you can't access the raw data, you have to test with them to compare against their database.

User Journal

Journal Journal: Tea 7

I have now passed the total of 30 different black teas. Not fruit, not spice, not herbal, not even green, white or red tea. Just black teas. No, blends like PG Tips and Yorkshire Gold don't count either.

Why so many? Aside from being my current monomania, it's because I'm fascinated by how different they are.

I couldn't tell you the chemistry that makes that difference, nor could I tell you what difference it makes in terms of the various compounds affecting alertness or sedation. (It contains both), in terms of health benefits or even in the simplest term of how water is retained in the body.

But I'm determined to find out at least some of this. It'll have to be on my own, as essentially no research is being done on the subject, and I've no idea of what that'll require beyond a very good gas spectrometer (I'm going to have to count molecules, not atoms).

But I think it would be fun to find out, and definitely worth doing as long as I can figure out how to (a) control the parameters, and (b) afford said piece of gear.

User Journal

Journal Journal: Slashdot could recover top spot from Reddit

So Reddit - where most veteran Slashdotters have been hanging out these days - is melting down, and for good reason.

I've been coming back here more lately.

But man, there's things that Reddit does better. No limit on mod points, for one. A better story queue mechanism for another.

There is a window here, if Slashdot admins have the balls to try. Implement Reddit's up vote system and subreddits. Maybe limit the latter to departments more traditional for Slashdot, but allow all users to submit stories in the Reddit manner. Hell, just clone the thing! You'd get a huge amount of your readership back.

Maybe the Slashdot front page is curated a la /r/bestof to get that moderator filtered quality for the front page, but subslashes should be open season.

Is the spirit of Rob Malda still alive in /. HQ? Can a tiger team code this in a hurry? You should.

Ah, nobody will ever read this....

User Journal

Journal Journal: The Trolls 81

Wow, it's been 15 years but I've finally got my own personal troll! :-)

I must apologize to everyone I've ever called a troll now that I've seen a real one. Yeah, there are trollish comments, but this... it's a different league. If you ever wondered who these brain-damaged morons were who set up geocities homepages with blinking purple text on blue background with red dots in Comic Sans - that kind of different league.

Now it does make me wonder about trolls in general. Has there been a study on this? I really wonder if psychologists have tackled this because quite honestly, you cannot be mentally stable and post in this and this content at the same time. So I do wonder if trolls on the Internet (the real trolls, not the people occasionally posting something stupid) do have a mental problem. It definitely looks like it. Probably insecurity issues, definitely an exaggerated need for attention, might be related to borderline syndrome or schizoprenia.

And, of course, the Internet provides:

As someone who has had to deal with family members suffering from mental illness, let me tell you that it's not funny. So despite the fact that they are, in fact, obnoxious, aggravating assholes, these sad little fucks also need help and their miserable little existence is not something you'd want to trade for yours, no matter how much you think your life sucks. Trust me, with a mental illness on top, it'll suck more.

Obviously, we can't offer therapy to people who usually comment anonymously and will often go to great lengths to avoid being tracked down. What we can do, however, is get a better understanding for how they act this way (they can't help it, mental illness is stronger than your conscious mind) and that the best thing we can do for them is to not continue the feedback loop. "Don't feed the trolls" - old wisdom there.

The last link in that list contains a few more ideas.

Now that I'm at the end, I kind of regret the smiley face at the top. But I'm leaving it in because this journal entry is a bit of a journey, even if it is short. Thanks to some Internet resources, a bit of research and connecting the dots, I've come a short way, changing my mind a little on this particular sub-sub-sub-part of life.

-----

A short additional statement on how to treat trolling. From what I've gathered from the resources above, a few comments (both here and in the various spammed threads) and my own life experience:

First, don't feed the trolls. Most of them seek attention, so if you stop giving it to them, they become frustrated and go away. Notice that they seek attention, not validation. A rebuke or an angry rant or even a shootout of personal insults satisfies them as much as anything else. Much like the old PR saying "there is no negative publicity", it is all about the attention itself, not about its content.

Second, stand your ground. Do not leave the site or stop commenting just because you're being trolled. It takes a bit to do that, yes. Trolls consider it a "victory" if they shut you up, either by simple flooding or by frustrating you enough to disappear. In their twisted minds, it gives them validation and somehow proves that they were right.

Third, if you see someone else being trolled, give them support. Doesn't take much - a single sentence is more than enough. Someone under attack by a real troll is being flooded. The troll will commonly post under multiple aliases or otherwise attempt to appear as more than one person. Psychological experiments such as Solomon Asch's show how we humans as social animals experience conformance pressure. So give that other person support by showing him that the flood he's getting is no the only opinion around. It doesn't matter if he consciously knows it's just one troll, the pressure is subconscious.

-----

I'd like to have comments disabled on this journal entry, for obvious reasons, but you can't publish a journal entry with comments disabled, so... 1000:1 bet that he's stalking the journal as well and will add his drivel below?

Also, if the formatting looks atrocious, turn off beta and revert to classic. Seriously.

User Journal

Journal Journal: Continuation on education 13

Ok, I need to expand a bit on my excessively long post on education some time back.

The first thing I am going to clarify is streaming. This is not merely distinction by speed, which is the normal (and therefore wrong) approach. You have to distinguish by the nature of the flows. In practice, this means distinguishing by creativity (since creative people learn differently than uncreative people).

It is also not sufficient to divide by fast/medium/slow. The idea is that differences in mind create turbulence (a very useful thing to have in contexts other than the classroom). For speed, this is easy - normal +/- 0.25 standard deviations for the central band (ie: everyone essentially average), plus two additional bands on either side, making five in total.

Classes should hold around 10 students, so you have lots of different classes for average, fewer for the band's either side, and perhaps only one for the outer bands. This solves a lot of timetabling issues, as classes in the same band are going to be interchangeable as far as subject matter is concerned. (This means you can weave in and out of the creative streams as needed.)

Creativity can be ranked, but not quantified. I'd simply create three pools of students, with the most creative in one pool and the least in a second. It's about the best you can do. The size of the pools? Well, you can't obtain zero gradient, and variations in thinking style can be very useful in the classroom. 50% in the middle group, 25% in each of the outliers.

So you've 15 different streams in total. Assume creativity and speed are normally distributed and that the outermost speed streams contain one class of 10 each. Start with speed for simplicity I'll forgo the calculations and guess that the upper/lower middle bands would then have nine classes of 10 each and that the central band will hold 180 classes of 10.

That means you've 2000 students, of whom the assumption is 1000 are averagely creative, 500 are exceptional and 500 are, well, not really. Ok, because creativity and speed are independent variables, we have to have more classes in the outermost band - in fact, we'd need four of them, which means we have to go to 8000 students.

These students get placed in one of 808 possible classes per subject per year. Yes, 808 distinct classes. Assuming 6 teaching hours per day x 5 days, making 30 available hours, which means you can have no fewer than 27 simultaneous classes per year. That's 513 classrooms in total, fully occupied in every timeslot, and we're looking at just one subject. Assuming 8 subjects per year on average, that goes up to 4104. Rooms need maintenance and you also need spares in case of problems. So, triple it, giving 12312 rooms required. We're now looking at serious real estate, but there are larger schools than that today. This isn't impossible.

The 8000 students is per year, as noted earlier. And since years won't align, you're going to need to go from first year of pre/playschool to final year of an undergraduate degree. That's a whole lotta years. 19 of them, including industrial placement. 152,000 students in total. About a quarter of the total student population in the Greater Manchester area.

The design would be a nightmare with a layout from hell to minimize conflict due to intellectual peers not always being age peers, and neither necessarily being perceptual peers, and yet the layout also has to minimize the distance walked. Due to the lack of wormholes and non-simply-connected topologies, this isn't trivial. A person at one extreme corner of the two dimensional spectrum in one subject might be at the other extreme corner in another. From each class, there will be 15 vectors to the next one.

But you can't minimize per journey. Because there will be multiple interchangeable classes, each of which will produce 15 further vectors, you have to minimize per day, per student. Certain changes impact other vectors, certain vector values will be impossible, and so on. Multivariable systems with permutation constraints. That is hellish optimization, but it is possible.

It might actually be necessary to make the university a full research/teaching university of the sort found a lot in England. There is no possible way such a school could finance itself off fees, but research/development, publishing and other long-term income might help. Ideally, the productivity would pay for the school. The bigger multinationals post profits in excess of 2 billion a year, which is how much this school would cost.

Pumping all the profits into a school in the hope that the 10 uber creative geniuses you produce each year, every year, can produce enough new products and enough new patents to guarantee the system can be sustained... It would be a huge gamble, it would probably fail, but what a wild ride it would be!

Ubuntu

Journal Journal: The End of Ubuntu 4

I have just upgraded my machine from Ubuntu 11.04 to 11.10 and everything is broken.

Everything.

It began with Unity. The horror. If there's a way of finding the main menu, I wasn't able to discover it. Menu bars have entirely disappeared from applications, to be replaced with the mac "menu on top" paradigm, a.k.a. one of the main reasons I've never used a Mac since 1994. You can't even log out of the bloody interface, let alone tweak it. Even the fonts are terrible.

It took me about 15 minutes to figure out how to get rid of Unity and replace it with Gnome 3 and I can't say there's really much of a difference in terms of usability. All of my default Gnome 2 desktop settings have been blown out of the water. Completely. My panels and taskbars and lauchers are either deleted or are all over the place. Even if I wanted to change them back, everything is basically uncustomisable as far as I can tell. You can't move objects around in the taskbars. Yes that's right. You can't move objects around in the taskbars.

Is this what a desktop is supposed to feel like?

I feel like my computer window has been turned into a walled garden, like that on an iDink, which I am permitted to carress and fawn over, but have disallowed from making my own in any way. Will I have to download some kind of "App" from the "Ubuntu App Store" to gain back basic functionality? Do I have to dive into arcane settings and ppa just to get back the system which I had and liked only a few hours ago? Do I have to give up and choose Gnome 3, or move to XFCE, or move everything to the shell, or basically waste the next two weeks getting back what I had?

If that's the price of Ubuntu (and it is) then I am leaving.

Ubuntu and Gnome died the moment they allowed the UI designers to take over. The art students, the inveiglers, the smooth talkers, the wild eyed dreamers, the "visionaries", the people who didn't care what they were doing as long as it made them feel talented and superior. These are the people who have designed unusable,confusing systems and interfaces that delete years of carefully customised menus and discourage serious use of computers.

And as for the "boring" people, the programmers, the testers, the package maintainers, the people who listen to the community, those who put real thought and concern for users into their themes and interfaces, the people who don't go to conferences, who communicate with users directly via forum and newsgroup, who sit at their desks working to make distros better, often for no reward at all; what of them? Are they in charge in this brave new work? No. They are cast down and out, by a brigade of bullshitters too busy bopping on their iPods and blogging than in doing useful work.

If you let the wrong people into an organisation or a community, they can destroy it. Ubuntu and Gnome shows that this can happen to distros and open source projects just as easily and quickly as it has happened in the many industrys, countrys, and economies throughout the word. The destroyers will fail upwards, the blazing heat of their incompetence scortching all new pastures dry. The rest of us will be left behind to pick up the pieces and start again. In 5 years time, Ubuntu may be back on the path to being usable again, but I can't wait that long.

I'm thinking of starting off with Mint.

User Journal

Journal Journal: A Shout Out to my Peeps!

Word up to the Shane of Westgate for confirming all my stories.

DG

Books

Journal Journal: History books can be fun (but usually aren't and this is a Bad Thing) 2

Most people have read "1066 and all that: a memorable history of England, comprising all the parts you can remember, including 103 good things, 5 bad kings and 2 genuine dates" (one of the longest book titles I have ever encountered) and some may have encountered "The Decline and Fall of Practically Everybody", but these are the exceptions and not the rule. What interesting - but accurateish - takes on history have other Slashdotters encountered?

User Journal

Journal Journal: Contact me

If you want to contact me without spamming article discussions (i.e. if you're new here), just reply to this post.

Education

Journal Journal: HOWTO: Run an educational system 1

The topic on Woz inspired me to post something about the ideas I've been percolating for some time. These are based on personal teaching experience, teaching experience by siblings and father at University level and by my grandfather at secondary school, 6th form college and military acadamy. (There's been a lot of academics in the family.)

Anyways, I'll break this down into sections. Section 1 deals with the issues of class size and difference in ability. It is simply not possible to teach to any kind of meaningful standard a group of kids of wildly differing ability. Each subject should be streamed, such that people of similar ability are grouped together -- with one and only one exception: you cannot neglect the social aspect of education. Some people function well together, some people dysfunction well together. You really want to maintain the former of those two groups as much as possible, even if that means having a person moved up or down one stream.

Further, not everyone who learns at the same pace learns in the same way. Streams should be segmented according to student perspective, at least to some degree, to maximize the student's ability to fully process what they are learning. A different perspective will almost certainly result in a different stream. Obviously, you want students to be in the perspective that leads them to be in the fastest stream they can be in.

There should be sufficient divisions such that any given stream progresses with the least turbulence possible. Laminar flow is good. There should also be no fewer than one instructor per ten students at a secondary school level. You probably want more instructors in primary education, less at college/university, with 1:10 being the average across all three.

Section 2: What to teach. I argue that the absolute fundamental skills deal in how to learn, how to research, how to find data, how to question, how to evaluate, how to apply reasoning tools such as deduction, inference, lateral thinking, etc, in constructive and useful ways. Without these skills, education is just a bunch of disconnected facts and figures. These skills do not have to be taught directly from day 1, but they do have to be a part of how things are taught and must become second-nature before secondary education starts.

Since neurologists now believe that what is learned alters the wiring of the brain, the flexibility of the brain and the adult size of the brain, it makes sense that the material taught should seek to optimize things a bit. Languages seem to boost mental capacity and the brain's capacity to be fault-tolerant. It would seem to follow that teaching multiple languages of different language families would be a Good Thing in terms of architecturing a good brain. Memorization/rote-learning seems to boost other parts of the brain. It's not clear what balance should be struck, or what other brain-enhancing skills there might be, but some start is better than no start at all.

Section 3: How to test. If it's essential to have exams (which I doubt), the exam should be longer than could be completed by anyone - however good - within the allowed time, with a gradual increase in the difficulty of the questions. Multiple guess choice should be banned. The mean and median score should be 50% and follow a normal distribution. Giving the same test to an expert system given the same level of instruction as the students should result in a failing grade, which I'd put at anything under 20% on this scale. (You are not testing their ability to be a computer. Not in this system.)

Each test should produce two scores - the raw score (showing current ability) and the score after adjusting for the anticipated score based on previous test results (which show the ability to learn and therefore what should have been learned this time - you want the third-order differential and therefore the first three tests cannot be examined this way). The adjusted score should be on the range of -1 (learned nothing new, consider moving across to a different perspective in the same stream) to 0 (learned at expected rate) to +1 (learning too fast for the stream, consider moving up). Students should not be moved downstream on a test result, only ever on a neutral evaluation of some kind.

Section 4: Fundamentals within any given craft, study or profession should be taught as deeply and thoroughly as possible. Those change the least and will apply even as the details they are intertwined with move in and out of fashion. "Concrete" skills should be taught broadly enough that there is never a serious risk of unemployability, but also deeply enough that the skills have serious market value.

Section 5: Absolutely NO homework. It's either going to be rushed, plagarized or paid-for. It's never going to be done well and it serves no useful purpose. Year-long projects are far more sensible as they achieve the repetitious use of a skill that homework tries to do but in a way that is immediately practical and immediately necessary.

Lab work should likewise not demonstrate trivial stuff, but through repetition and variation lead to the memorization of the theory and its association with practical problems of the appropriate class.

Section 6: James Oliver's advice on diet should be followed within reason - and the "within reason" bit has more to do with what food scientists and cookery scientists discover than with any complaints.

Section 7: Go bankrupt. This is where this whole scheme falls over -- to do what I'm proposing seriously would require multiplying the costs of maintaining and running a school by 25-30 with no additional income. If it had a few billion in starting capital and bought stocks in businesses likely to be boosted by a high-intensity K-PhD educational program, it is just possible you could reduce the bleeding to manageable proportions. What you can never do in this system is turn a profit, although all who are taught will make very substantial profits from such a system.

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