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XL Bully dog - discussion

I think it might be a quite fun Computer Science undergrad dissertation topic, but about as successful as loading the algorithm with a bunch of books and expecting it to be able to look at new strings of words and tell you whether the book it’s from is any good.

You clearly know a lot about DNA and computers. :rolleyes:
 
Someone had gone to the trouble to find a vet who would chop the dogs ears. Not really a sign of a responsible owner. And no good outcome for such a dog either, tbh.
Grand-daughter was attacked by a fucking wolf-dog. The people who own these trophy dogs are pretty disgusting, to my mind...but obviously, I am massively biased by seeing too many useless twats with (all sorts of dogs) who are,effectively, out of control (dogs, but also owners, tbf).
Angry reaction not aimed at you, but at the fucker who's dog bit your grand-daughter. :mad:
 
I imagine it would be quite easy. You could use machine learning and show an algorithm a bunch of DNA sequences and say "these are from a pitbull" and a bunch more and say "these are from a labrador" and before too long it could classify new sequences as pitbull or labrador and the results would agree with a human assessment of that dog.

You imagine wrong.

This kind of genetic testing relies on taking a small set of genetic loci and comparing them to a database. The database will likely not be a very good one. Particularly with dogs, who you can't interview when you take their DNA to ask them what breed they are. So every dog in the database you're comparing to will have been arbitrarily categorised as one 'breed' or another. I don't know much about computer science but I do know that a fundamental law of the universe is 'garbage in, garbage out'.

Then there's the methodology. I'm not familiar with the precise mechanics of dog DNA testing but I would expect them to use either restriction fragment length polymorphism data or microsatellite repeat data. Neither one of these corresponds directly to the function of any gene which affects the dogs morphology, physiology, or anything else. Microsatellites are non-coding, junk DNA. Useful for data science purposes when you've got a big, high quality database extensively cross-referenced with physiological and morphological data as we increasingly do for humans and for other commonly used model organisms like fruit flies, zebrafish, rhesus monkeys, white mice etc. But pretty meaningless for determining the breed of a dog.

Dogs are pretty unique for the range of morphology observed in a single species, and also in the extent of selective breeding they have endured. Not only have they likely been domesticated for longer than any other species, but they're the only species we will deliberately inbreed even at serious cost to health, longevity etc. The only comparable case would probably be broiler chickens, and even they can probably still function as independent organisms better than a fucking pug or similar abomination.

'Machine learning' does not yet exist. What goes by that name is just brute force data analysis but with more brute force. And as with all data analysis, whether by supercomputers or a human with a notebook and a pencil, if you put garbage in you get garbage out.
 
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Couldn't agree more. If a person's ego is that fragile that it needs propping up, they should find some other way.

Fragile male egos account for a lot of terrible things, from mutant weapon-dogs to steroid abuse to ridiculous overpowered cars. I believe the correct amount of risk to the public that should be tolerated in the name of making sad twats temporarily feel a bit less like sad twats is zero.

Not exclusively male egos of course, but let's be honest here, mostly male egos.
 
Bigger than a Husky. About the size of a medium Alsatian, but with front shoulders on steroids and paws bigger than my hands (see pic). He's never shown the slightest bit of aggression towards people and has certainly never bitten anyone, except me, and that was by accident in the early days when he tried to take a ball out of my hand and got it all wrong (hence Dickhead). But accidents do happen. He gets a lot of attention, especially from kids who want to pet him and he loves it, but I keep a hand on his collar and stay very alert. Owners should also realise that not everyone loves your fucking dog, no matter what size it is.
^This! This is the bit that's most important to me.

I have a bit of a dog phobia. A dog went for me when I was a child and I've been scared of dogs ever since. I only escaped by jumping over a wall, otherwise I dread to think what might happen.

What pisses me off the most, if someone's dog starts to run towards me or, worse, jump up at me, and I squeal 'Call your dog off, I'm scared of dogs!' is when the owner nonchalantly replies 'He's only being friendly' 'She doesn't bite' 'Won't do any harm'.

Wtf?!?!? Yes, you're welcome to love your dog and everyone else's dogs. I don't. I do not love your fucking dog. I do not want your fucking dog running towards me. I do not want your fucking dog jumping up at me.

That does not reassure me in the slightest. They're still letting their dog run towards me and jump up at terrified me.

What does reassure me is if the owner whistles and/or calls out 'Fido! Heel!' or 'Fido! Here boy!' and the dog responds obediently. Because then I know that it's a well trained and well behaved dog that likely poses no threat to me.

A dog owner yelling at me 'He's a softy, won't bite you!' doesn't reassure me, because all that does is tell me that the owner doesn't give a shit and doesn't have their animal under control, and thus is more likely to pose a threat to me. And yelling at me that the dog doesn't bite doesn't reassure me either, because you often read in the papers after a savage dog attack that hasn't bitten someone before, 'out of character', 'wouldn't harm a fly' until it savaged someone's face off.

If a dog can't be trusted when it's off leash not to run towards and jump up at random people, then it shouldn't be off leash, frankly, because no, not everyone loves your fucking dog, in fact many people actively dislike dogs and/or are scared of them.
 
You imagine wrong.

This kind of genetic testing relies on taking a small set of genetic loci and comparing them to a database. The database will likely not be a very good one. Particularly with dogs, who you can't interview when you take their DNA to ask them what breed they are. So every dog in the database you're comparing to will have been arbitrarily categorised as one 'breed' or another. I don't know much about computer science but I do know that a fundamental law of the universe is 'garbage in, garbage out'.

Then there's the methodology. I'm not familiar with the precise mechanics of dog DNA testing but I would expect them to use either restriction fragment length polymorphism data or microsatellite repeat data. Neither one of these corresponds directly to the function of any gene which affects the dogs morphology, physiology, or anything else. Microsatellites are non-coding, junk DNA. Useful for data science purposes when you've got a big, high quality database extensively cross-referenced with physiological and morphological data as we increasingly do for humans and for other commonly used model organisms like fruit flies, zebrafish, rhesus monkeys, white mice etc. But pretty meaningless for determining the breed of a dog.

Dogs are pretty unique for the range of morphology observed in a single species, and also in the extent of selective breeding they have endured. Not only have they likely been domesticated for longer than any other species, but they're the only species we will deliberately inbreed even at serious cost to health, longevity etc. The only comparable case would probably be broiler chickens, and even they can probably still function as independent organisms better than a fucking pug or similar abomination.

You‘d use use whole-genome sequencing, RFLP is basically obsolete nowadays. You’d get the breeder organsition wankers to give you pedigree dogs to sample and when you’ve fed it enough sequences vs other dog ones it’d be pretty easy for the algorithm to work out what it needs to see to get pit bull = yes. It would obviously be even be cheaper and easier to do it on physical characteristics though, show it 3D renders of dogs and it will easily be able to distinguish between breeds. It won’t even need a 100% accuracy rate - if the breeder pedigree wankers disagree then the computer will be correct and they will be wrong, and the dog destroyed or whatever. I mean, the dog is banned becuase it has these characteristics, not because of what a breeder says about it. If people don’t want to acquire dogs that might be seized they should get a fucking sausage dog or whatever. It’s not rocket science to avoid skirting the limits of what might be deemed dangerous.
 
You‘d use use whole-genome sequencing, RFLP is basically obsolete nowadays. You’d get the breeder organsition wankers to give you pedigree dogs to sample and when you’ve fed it enough sequences vs other dog ones it’d be pretty easy for the algorithm to work out what it needs to see to get pit bull = yes. It would obviously be even be cheaper and easier to do it on physical characteristics though, show it 3D renders of dogs and it will easily be able to distinguish between breeds. It won’t even need a 100% accuracy rate - if the breeder pedigree wankers disagree then the computer will be correct and they will be wrong, and the dog destroyed or whatever. I mean, the dog is banned becuase it has these characteristics, not because of what a breeder says about it. If people don’t want to acquire dogs that might be seized they should get a fucking sausage dog or whatever. It’s not rocket science to avoid skirting the limits of what might be deemed dangerous.

Yes but all this is based on the assumption that any given dog is a mixture of 'pure' breeds x, y and z. This is false. Most dogs will have no pure anything in their ancestry, and are merely dogs. Even 'pure breeds' are not consistent over time; not least because severely inbreeding animals leads to an accumulation of deleterious traits. Compare a pedigree english bulldog with one from 100 years ago; what was once a strong, handsome creature is now degenerate lump of flesh that can't breathe or walk properly. Sourcing your data from the very people responsible for this systematic abuse of living creatures does not seem like a good way to get information. And nobody wants accurate information anyway. The kind of twats who would send of a sample of their dog's DNA and pay cash money to find out what it is, is not going to be happy to learn that said dog is 100% pure mongrel. Nobody is going to recommend that service to a friend, even though it would be much more accurate than any of this '34.8% labrador, 14.61% chihuahua' bollocks.

And I seriously doubt anyone is sequencing an entire dog genome for one pointless test. And even if they did, you'd still need to run your comparison based on specific genetic loci. And again, the unique history of dogs as a species makes false positives as a result of convergent evolution much more likely, as different people will have selected different populations of dogs for similar characteristics on multiple occasions. So I would say a shared genetic locus in two dogs was less likely to be informative of shared ancestry than it would be in an undomesticated species. These kind of caveats are also not going to go in the report of your dog's DNA score, because again the service is one that only an idiot would use in the first place.

e2a: The website of the dog testing company linked to early states that they use microsatellite data, not whole-genome sequencing. Microsatellites are non-coding sequences, which has advantages like reducing the likely effects of convergent evolution, but disadvantages in that the information you're considering has no bearing on morphology, which is how we actually assign dogs to 'breeds' in the real world.
 
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^This! This is the bit that's most important to me.

I have a bit of a dog phobia. A dog went for me when I was a child and I've been scared of dogs ever since. I only escaped by jumping over a wall, otherwise I dread to think what might happen.

What pisses me off the most, if someone's dog starts to run towards me or, worse, jump up at me, and I squeal 'Call your dog off, I'm scared of dogs!' is when the owner nonchalantly replies 'He's only being friendly' 'She doesn't bite' 'Won't do any harm'.

Wtf?!?!? Yes, you're welcome to love your dog and everyone else's dogs. I don't. I do not love your fucking dog. I do not want your fucking dog running towards me. I do not want your fucking dog jumping up at me.

That does not reassure me in the slightest. They're still letting their dog run towards me and jump up at terrified me.

What does reassure me is if the owner whistles and/or calls out 'Fido! Heel!' or 'Fido! Here boy!' and the dog responds obediently. Because then I know that it's a well trained and well behaved dog that likely poses no threat to me.

A dog owner yelling at me 'He's a softy, won't bite you!' doesn't reassure me, because all that does is tell me that the owner doesn't give a shit and doesn't have their animal under control, and thus is more likely to pose a threat to me. And yelling at me that the dog doesn't bite doesn't reassure me either, because you often read in the papers after a savage dog attack that hasn't bitten someone before, 'out of character', 'wouldn't harm a fly' until it savaged someone's face off.

If a dog can't be trusted when it's off leash not to run towards and jump up at random people, then it shouldn't be off leash, frankly, because no, not everyone loves your fucking dog, in fact many people actively dislike dogs and/or are scared of them.
I'm the same with dogs. I'm quite scared of them. If you allowed a child to behave in the way some not so good dog owners let their dogs behave you'd be ostracised.
 
I'm the same with dogs. I'm quite scared of them. If you allowed a child to behave in the way some not so good dog owners let their dogs behave you'd be ostracised.

You say that but there are plenty of feral children about. And some dogs may be dangerous but at least they don't talk, and cannot operate potentially destructive things like bluetooth speakers or fire.
 
^This! This is the bit that's most important to me.

I have a bit of a dog phobia. A dog went for me when I was a child and I've been scared of dogs ever since. I only escaped by jumping over a wall, otherwise I dread to think what might happen.

What pisses me off the most, if someone's dog starts to run towards me or, worse, jump up at me, and I squeal 'Call your dog off, I'm scared of dogs!' is when the owner nonchalantly replies 'He's only being friendly' 'She doesn't bite' 'Won't do any harm'.

Wtf?!?!? Yes, you're welcome to love your dog and everyone else's dogs. I don't. I do not love your fucking dog. I do not want your fucking dog running towards me. I do not want your fucking dog jumping up at me.

That does not reassure me in the slightest. They're still letting their dog run towards me and jump up at terrified me.

What does reassure me is if the owner whistles and/or calls out 'Fido! Heel!' or 'Fido! Here boy!' and the dog responds obediently. Because then I know that it's a well trained and well behaved dog that likely poses no threat to me.

A dog owner yelling at me 'He's a softy, won't bite you!' doesn't reassure me, because all that does is tell me that the owner doesn't give a shit and doesn't have their animal under control, and thus is more likely to pose a threat to me. And yelling at me that the dog doesn't bite doesn't reassure me either, because you often read in the papers after a savage dog attack that hasn't bitten someone before, 'out of character', 'wouldn't harm a fly' until it savaged someone's face off.

If a dog can't be trusted when it's off leash not to run towards and jump up at random people, then it shouldn't be off leash, frankly, because no, not everyone loves your fucking dog, in fact many people actively dislike dogs and/or are scared of them.
Absolutely all this. I'm not keen on dogs and hate when they jump up and owners come out with that stuff too.

My sister was bitten by a huge Alsatian when she was a kid. 35 years later, she'll literally cross the road if she sees one coming towards her on the pavement. :(
 
Makes me wonder how many times kids get literally knocked over by these thoughtless people's dogs. A toddler is tiny compared to even a medium-sized dog.
 
Makes me wonder how many times kids get literally knocked over by these thoughtless people's dogs. A toddler is tiny compared to even a medium-sized dog.


Not so much thoughtless, but when my children were young, we had large dogs.

On many occasions, the dog's wagging tail slammed the kids into a wall or threw them off balance in the yard.

Now they are adults, I asked them it if bothered them. They had no problem with it, taught them about "spatial awareness".
 
On knocking children over, that's up to six months in jail for the owner:

"A dog shall be regarded as dangerously out of control on any occasion on which there are grounds for reasonable apprehension that it will injure any person or assistance dog, whether or not it actually does so"
 
You say that but there are plenty of feral children about. And some dogs may be dangerous but at least they don't talk, and cannot operate potentially destructive things like bluetooth speakers or fire.

I pondered for a bit there on whether "bluetooth speakers" was an autocorrect error.
But the most lexically plausible think I could come up with was "bazookas", which I'm sure I would have heard about.
 
Unfortunately, this isn’t true.

The tip is to stick anything up it’s arse, and that may be your finger or thumb. If you’re lucky, the dog will be shocked and distracted enough to give you some space to pull out of the maw. A pencil probably isn’t going to have any effect at all in such a scenario.

But if a dog has a lock-on jaw it probably won’t give much attention to anything being shoved up it’s bum
Has anyone ever tried giving them a wank instead?
 
A good friend of mine had a half-pibble many years back. Very lovable, friendly dog and all that. I'm not a dog person, but I quite enjoyed having her about. But it was still a dog. Treat with caution, and never, ever raise your voice to the Master. And that's how I felt with a well-raised dog and a good owner. Now for some of these clowns out there... Well.

That said, most dog injuries happen in the home, and often with children. I don't understand how dog owners seem to forget that it's an animal and not a human being. Most cat owners (or the ones with all their limbs intact) wouldn't dream of pulling the cat's ears and then shoving their face in front of theirs for the quite correct reason that they'd stand a rather good chance of losing an eye to the experience. There's something in a lot of dog owners that short circuits this defence mechanism and they think it's quite alright to expose other people to their idiocy.
 
I've had both large.... Long hair German Shepherds and a Great Dane, along with small dogs.... Westies and a Lhasa apso, over the years.
The German Shepherd was soft as a brush but he would kill to save me, of that I have no doubt...when I was 6 I fell through the roof of the farm next door, I was screaming because I'd landed on top of a milking machine and couldn't move...my older brother always relates this story :rolleyes:..he was standing in the garden when he heard me screaming and the next minute the male dog cleared the 8 ft barn wall like it wasn't there and the female one ran like the wind down the lanes to get to me, they stood guarding me and would not let anyone, including my father get anywhere close until I told them to lie down....only time I witness them like that..we used to ride on their backs as kids and I used to dress him up in bonnets and little daisy chains, plaited his tail, just normal irritating kid stuff...never any reactions just love and loyalty.

The male Westie was a right nasty little get at times, really couldn't trust him at all. The lhasa is quite growly and snappy with people she doesn't know.
The Great Dane was soft as muck and as strong as hell.....Mr S is 6ft 5 and built light the proverbial...she once was playing with him and he held on to her collar in a bear hug type grip, she dragged him up onto his feet from sitting on the floor if one easy movement, it took us totally by surprise!

Moral of the story....you really can't foresee what dogs are capable of no matter how well you think you know them.
 
I haven’t read this.


I have now. There's quite a lot of it.
Some things, like some odd interpretations of basic genetics terminology stated in a very forceful and authoritative manner made me wonder about the author's academic background.

A Google on the author brought me straight here:


Obviously doesn't mean pit bulls aren't a problem or anything like that, but this particular source doesn't look so kosher.
 
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