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A Faster Jigsaw Solving Algorithm
mikejuk writes "Andrew Gallagher at Cornell University in Ithaca, New York has improved the standard approach to automated jigsaw solving by copying what humans do in finding groups of pieces that best match and working outwards from there. With a speed of 10,000 pieces per 24 hours, it can solve large puzzles. Not only that, but the type of jigsaw it solves is more difficult than the usual in that the pieces are square and can be placed in any orientation. It is so good it can even solve problems consisting of a number of mixed up pieces without being told how many or their dimensions. Of course, as well as having fun beating humans at another recreational pastime, the technique could be used to unscramble shredded documents, as per the recent DARPA challenge."
My Second First Post bitches!
The march of progress goes on. Every month, new announcements are made that indicate machine intelligence is moving a couple of steps forward. Some are seemingly trivial, some are dubbed merely "interesting," but all contribute to the overall forward march of functional machine reasoning. To date, most of the major advances might be deemed as mere pieces of a much larger puzzle, but ongoing integration of such bits will undoubtedly yield much more interesting results.
Speaking as someone who started his journey into the wonders of computing in the 1980s, things are indeed moving at an accelerated rate these days, and the rate is only continuing to increment. The imaginings of my childhood and early adulthood, as told by Asimov, Gibson, Stephenson, and in some respects even Card, are beginning to reflect reality when viewed through the prism of what is regarded as mundane present day media coverage.
In light of this, my message is simple. If you're working in the information technology arena, and your job doesn't involve focused application of creativity, the time to start refocusing your career objectives is now.
Write failed: Broken pipe
Obviously I don't understand the complexity here but it seems like that is a long time.
By my logic:
- pick 1 of the pieces as a start and pick 1 side of that piece
- now pick another piece and there are 4 possible arrangements to match your selected starting side (assuming square-ish pieces)
- on average, you'll need to check 1/2 of the remaining 9,999 pieces to get the matching one and each of 4 orientations
- so the first side of the first piece will requires, on average, 19998 checks
- next edge you select will need 19996 checks
- and so on
So that basically totals 99 million checks over 24 hours ...
At a implied rate of 1100 or so comparisons per second ... ok - dont worry ... I guess that's pretty good when you have to decide whether each combination is a match of not.
Sounds like an interesting problem - guess I should read the paper !
any possible way of carrying a microsd card inside the tip of a penis without surgery?
Finally someone has made real progress in solving one of the world's most pressing problems.
Now that jigsaw puzzles can be solved much more quickly, world peace is an achievable goal!.
Uhh, no... this algorithm cannot be generalized. It lacks a means to determine whether a proposed solution is valid or invalid. It simply proposes solutions. But it can fail to satisfy problems with known solutions. This is a strategy, not a solution method.
Let's give it the american politicial system layout.
The march of progress goes on. Every month, new announcements are made that indicate machine intelligence is moving a couple of steps forward.
Where's the "intelligence" in this algorithm?
ever spun around when urinating in a public restroom and stating over and over in a monotone robotic voice:
âoeDrop it!â âoeI am Robocop!â âoeThank you for your cooperation!â
On the morning of May 3rd, Sichuan Chengdu city resident Lin Zhaoqiang carried 50,000 yuan in torn 100 yuan bills from Chengdu Jintang to the Bank of China Sichuan Branch, looking for help. May 1st, Lin Zhaoqiang's wife all of a sudden had a fit and tore the 50,000 yuan life-saving money into pieces. Facing thousands of pieces of cash, 12 bank employees sorted and spliced for 6 hours only to piece together a single 100 yuan bill. The remaining money, if unable to be pieced back together, face the unfortunate possibility of being declared null and invalid. Because this money is for treating his wife's mental illness, Lin Zhaoqiang said he won't give up.
One of the commenters said they should just weigh the cash, but obviously that would be too simple. Nothing is simple when dealing with Chinese banks and their ridiculous rules. They'll flat-out refuse to take small bills or coins ("What the heck are we going to do with all these jiao notes? What are we, a bank or something?")
Shutting down free speech with violence isn't fighting fascism. It IS fascism!
A possible improvement to the algorithm would be to check all new edges during a merge of two components rather than just testing for whether the constraint of planarity is violated. This would avoid errors in merges - many of the sample images show components that join well on one or two edges, but badly on others.
it piece back together a shredded document which has been put through incineration.
The original paper was written at Eastman Kodak Research Laboratories. I am guessing we won't be seeing a follow up paper from him.
Why cut the picture up into pieces in the first place?
Your paper shredder is no longer sufficient. I am here to market to you a paper burner!
insert inflammatory comment here!
"There has NEVER been, in the whole field of AI, a logical leap to join two abstract concepts. There has never been discovery or invention (no matter how minor) on the same scale as even a pigeon. No machine ever worked out something that it wasn't told how to do DOWN TO THE LETTER."
None of this is true. You are simply ignorant of the facts of AI programs, which include proof-finding programs.
Correct. Grandparent post is symptomatic of someone who has not actually studied A.I. or one of its subfields and assumes that Kinect is the "nearest thing we had recently to intelligence." The problem of joining two abstract concepts is long ago solved by inference engines.
Pet peeve: Profane people propagating perfunctory pedantry.
Here every edge has a color distribution and another edge of another tile with matching distribution. The fundamental solution was proposed originally in a Perry Mason novel by Erle Stanley Gardener. (As reported by Donald Knuth in his book/manual on TeX ). Perry Mason asks Paul Drake to find the two rentals by the same person just half an hour apart. Paul Drake says, "there are thousands of rental records, I would never find the match in time". Perry Mason says, "Nah. Just sort all the records by name, and look for duplicates".
Sorting by name, is grandiloquently called "Lexicographic Ordering" in comp sci. Create a lexicographic value for the color distribution on each edge, sort it by that order and look for duplicates. Here areas of uniform color would get multiple duplicates and one has to prune the tree. That is where these guys claim to have made some improvement. It is a nice problem I would give to some master's students learning heavy duty scientific computing. But I think shape matching has a lot more potential in developing antibodies and medicines.
sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
About six months ago, I was overexerting myself trying to get rid of a terrible virus on a client's PC (I own a PC repair shop and have been fixing computers for over 10 years). Given my level of expertise, I thought I'd be able to get rid of it fairly quickly and without hassle, but as was made evident by my colossal failure, I was horribly, horribly wrong.
I couldn't remove the virus no matter what method I used. I tried all the latest anti-virus software and all the usual tricks, but it was all in vain. Failure after failure, my life was slowly being sucked away as I spent more and more of my time trying to get rid of this otherworldly virus.
Frustrated and stressed by my own failure, I began distancing myself from my wife and children. After a few days, I began verbally abusing them, and it eventually escalated into physical abuse. I was slowly losing what remaining sanity I had left. If this had continued for much longer, it is highly probable that I would have committed suicide. A mere shell of what I once was, I barricaded myself in my bedroom and cried myself to sleep for days on end.
That's when it happened: I found MyCleanPC! I installed MyCleanPC right on the client's PC, ran a scan, and it immediately got rid of all the viruses without a single problem. MyCleanPC accomplished in record time what I was unable to accomplish after a full week. Wow! Such a thing!
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-----------
A few weeks ago, I foolishly ran a strange executable file that one of my acquaintances sent me by email. As someone who doesn't know much about computers, at the time, I thought nothing of it. "Why would my acquaintance want to hurt me?" Following this line of thought, I ran the file without question.
How naive I was. Despite having what was supposedly the best anti-virus software out right then, a virus took over my computer and held it hostage. It was pretending to be a warning from Windows telling me to buy some strange anti-virus software I'd never heard of from a company I'd never heard of to remove the virus.
This immediately set alarm bells off in my head. "How could this happen? My anti-virus is supposed to be second to none!" Faced with this harsh reality, I decided to take it to a PC repair shop for repair. They gladly accepted the job, told me it'd be fixed in a few days, and sent me off with a smile.
A few days later, they called me and told me to come pick up my computer. At the time, I noticed that they sounded like whimpering animals, but I concluded that it must just be stress from work. When I arrived, they, with tears in their eyes, told me that the virus was so awful and merciless that they were unable to remove it. "Ah," I thought. "That must be why they sounded so frustrated and pathet
About six months ago, I was overexerting myself trying to get rid of a terrible virus on a client's PC (I own a PC repair shop and have been fixing computers for over 10 years). Given my level of expertise, I thought I'd be able to get rid of it fairly quickly and without hassle, but as was made evident by my colossal failure, I was horribly, horribly wrong.
I couldn't remove the virus no matter what method I used. I tried all the latest anti-virus software and all the usual tricks, but it was all in vain. Failure after failure, my life was slowly being sucked away as I spent more and more of my time trying to get rid of this otherworldly virus.
Frustrated and stressed by my own failure, I began distancing myself from my wife and children. After a few days, I began verbally abusing them, and it eventually escalated into physical abuse. I was slowly losing what remaining sanity I had left. If this had continued for much longer, it is highly probable that I would have committed suicide. A mere shell of what I once was, I barricaded myself in my bedroom and cried myself to sleep for days on end.
That's when it happened: I found MyCleanPC! I installed MyCleanPC right on the client's PC, ran a scan, and it immediately got rid of all the viruses without a single problem. MyCleanPC accomplished in record time what I was unable to accomplish after a full week. Wow! Such a thing!
MyCleanPC is outstanding! My client's computer is running faster than ever! I highly recommend you install MyCleanPC right this minuteness, run a scan, and then boost your PC speed in record time! MyCleanPC came through with flying colours where no one else could!
My client's response? "MyCleanPC totally cleaned up my system, and increased my speed!" All the PC repair professionals are using MyCleanPC to solve all of their problems. This should be reason enough for you to switch to MyCleanPC! It'll speed up your computer, rid it of all viruses, and you'll be able to work productively again! Wow!
Even if you're not having any obvious computer problems, you could still be in danger. That's why I very highly recommend that you still use MyCleanPC. After all, it will boost your PC & internet speed to levels you never would think are possible!
MyCleanPC: For a Cleaner, Safer PC.
-----------
A few weeks ago, I foolishly ran a strange executable file that one of my acquaintances sent me by email. As someone who doesn't know much about computers, at the time, I thought nothing of it. "Why would my acquaintance want to hurt me?" Following this line of thought, I ran the file without question.
How naive I was. Despite having what was supposedly the best anti-virus software out right then, a virus took over my computer and held it hostage. It was pretending to be a warning from Windows telling me to buy some strange anti-virus software I'd never heard of from a company I'd never heard of to remove the virus.
This immediately set alarm bells off in my head. "How could this happen? My anti-virus is supposed to be second to none!" Faced with this harsh reality, I decided to take it to a PC repair shop for repair. They gladly accepted the job, told me it'd be fixed in a few days, and sent me off with a smile.
A few days later, they called me and told me to come pick up my computer. At the time, I noticed that they sounded like whimpering animals, but I concluded that it must just be stress from work. When I arrived, they, with tears in their eyes, told me that the virus was so awful and merciless that they were unable to remove it. "Ah," I thought. "That must be why they sounded so frustrated and pathet
About six months ago, I was overexerting myself trying to get rid of a terrible virus on a client's PC (I own a PC repair shop and have been fixing computers for over 10 years). Given my level of expertise, I thought I'd be able to get rid of it fairly quickly and without hassle, but as was made evident by my colossal failure, I was horribly, horribly wrong.
I couldn't remove the virus no matter what method I used. I tried all the latest anti-virus software and all the usual tricks, but it was all in vain. Failure after failure, my life was slowly being sucked away as I spent more and more of my time trying to get rid of this otherworldly virus.
Frustrated and stressed by my own failure, I began distancing myself from my wife and children. After a few days, I began verbally abusing them, and it eventually escalated into physical abuse. I was slowly losing what remaining sanity I had left. If this had continued for much longer, it is highly probable that I would have committed suicide. A mere shell of what I once was, I barricaded myself in my bedroom and cried myself to sleep for days on end.
That's when it happened: I found MyCleanPC! I installed MyCleanPC right on the client's PC, ran a scan, and it immediately got rid of all the viruses without a single problem. MyCleanPC accomplished in record time what I was unable to accomplish after a full week. Wow! Such a thing!
MyCleanPC is outstanding! My client's computer is running faster than ever! I highly recommend you install MyCleanPC right this minuteness, run a scan, and then boost your PC speed in record time! MyCleanPC came through with flying colours where no one else could!
My client's response? "MyCleanPC totally cleaned up my system, and increased my speed!" All the PC repair professionals are using MyCleanPC to solve all of their problems. This should be reason enough for you to switch to MyCleanPC! It'll speed up your computer, rid it of all viruses, and you'll be able to work productively again! Wow!
Even if you're not having any obvious computer problems, you could still be in danger. That's why I very highly recommend that you still use MyCleanPC. After all, it will boost your PC & internet speed to levels you never would think are possible!
MyCleanPC: For a Cleaner, Safer PC.
-----------
A few weeks ago, I foolishly ran a strange executable file that one of my acquaintances sent me by email. As someone who doesn't know much about computers, at the time, I thought nothing of it. "Why would my acquaintance want to hurt me?" Following this line of thought, I ran the file without question.
How naive I was. Despite having what was supposedly the best anti-virus software out right then, a virus took over my computer and held it hostage. It was pretending to be a warning from Windows telling me to buy some strange anti-virus software I'd never heard of from a company I'd never heard of to remove the virus.
This immediately set alarm bells off in my head. "How could this happen? My anti-virus is supposed to be second to none!" Faced with this harsh reality, I decided to take it to a PC repair shop for repair. They gladly accepted the job, told me it'd be fixed in a few days, and sent me off with a smile.
A few days later, they called me and told me to come pick up my computer. At the time, I noticed that they sounded like whimpering animals, but I concluded that it must just be stress from work. When I arrived, they, with tears in their eyes, told me that the virus was so awful and merciless that they were unable to remove it. "Ah," I thought. "That must be why they sounded so frustrated and pathet
About six months ago, I was overexerting myself trying to get rid of a terrible virus on a client's PC (I own a PC repair shop and have been fixing computers for over 10 years). Given my level of expertise, I thought I'd be able to get rid of it fairly quickly and without hassle, but as was made evident by my colossal failure, I was horribly, horribly wrong.
I couldn't remove the virus no matter what method I used. I tried all the latest anti-virus software and all the usual tricks, but it was all in vain. Failure after failure, my life was slowly being sucked away as I spent more and more of my time trying to get rid of this otherworldly virus.
Frustrated and stressed by my own failure, I began distancing myself from my wife and children. After a few days, I began verbally abusing them, and it eventually escalated into physical abuse. I was slowly losing what remaining sanity I had left. If this had continued for much longer, it is highly probable that I would have committed suicide. A mere shell of what I once was, I barricaded myself in my bedroom and cried myself to sleep for days on end.
That's when it happened: I found MyCleanPC! I installed MyCleanPC right on the client's PC, ran a scan, and it immediately got rid of all the viruses without a single problem. MyCleanPC accomplished in record time what I was unable to accomplish after a full week. Wow! Such a thing!
MyCleanPC is outstanding! My client's computer is running faster than ever! I highly recommend you install MyCleanPC right this minuteness, run a scan, and then boost your PC speed in record time! MyCleanPC came through with flying colours where no one else could!
My client's response? "MyCleanPC totally cleaned up my system, and increased my speed!" All the PC repair professionals are using MyCleanPC to solve all of their problems. This should be reason enough for you to switch to MyCleanPC! It'll speed up your computer, rid it of all viruses, and you'll be able to work productively again! Wow!
Even if you're not having any obvious computer problems, you could still be in danger. That's why I very highly recommend that you still use MyCleanPC. After all, it will boost your PC & internet speed to levels you never would think are possible!
MyCleanPC: For a Cleaner, Safer PC.
-----------
A few weeks ago, I foolishly ran a strange executable file that one of my acquaintances sent me by email. As someone who doesn't know much about computers, at the time, I thought nothing of it. "Why would my acquaintance want to hurt me?" Following this line of thought, I ran the file without question.
How naive I was. Despite having what was supposedly the best anti-virus software out right then, a virus took over my computer and held it hostage. It was pretending to be a warning from Windows telling me to buy some strange anti-virus software I'd never heard of from a company I'd never heard of to remove the virus.
This immediately set alarm bells off in my head. "How could this happen? My anti-virus is supposed to be second to none!" Faced with this harsh reality, I decided to take it to a PC repair shop for repair. They gladly accepted the job, told me it'd be fixed in a few days, and sent me off with a smile.
A few days later, they called me and told me to come pick up my computer. At the time, I noticed that they sounded like whimpering animals, but I concluded that it must just be stress from work. When I arrived, they, with tears in their eyes, told me that the virus was so awful and merciless that they were unable to remove it. "Ah," I thought. "That must be why they sounded so frustrated and pathet
About six months ago, I was overexerting myself trying to get rid of a terrible virus on a client's PC (I own a PC repair shop and have been fixing computers for over 10 years). Given my level of expertise, I thought I'd be able to get rid of it fairly quickly and without hassle, but as was made evident by my colossal failure, I was horribly, horribly wrong.
I couldn't remove the virus no matter what method I used. I tried all the latest anti-virus software and all the usual tricks, but it was all in vain. Failure after failure, my life was slowly being sucked away as I spent more and more of my time trying to get rid of this otherworldly virus.
Frustrated and stressed by my own failure, I began distancing myself from my wife and children. After a few days, I began verbally abusing them, and it eventually escalated into physical abuse. I was slowly losing what remaining sanity I had left. If this had continued for much longer, it is highly probable that I would have committed suicide. A mere shell of what I once was, I barricaded myself in my bedroom and cried myself to sleep for days on end.
That's when it happened: I found MyCleanPC! I installed MyCleanPC right on the client's PC, ran a scan, and it immediately got rid of all the viruses without a single problem. MyCleanPC accomplished in record time what I was unable to accomplish after a full week. Wow! Such a thing!
MyCleanPC is outstanding! My client's computer is running faster than ever! I highly recommend you install MyCleanPC right this minuteness, run a scan, and then boost your PC speed in record time! MyCleanPC came through with flying colours where no one else could!
My client's response? "MyCleanPC totally cleaned up my system, and increased my speed!" All the PC repair professionals are using MyCleanPC to solve all of their problems. This should be reason enough for you to switch to MyCleanPC! It'll speed up your computer, rid it of all viruses, and you'll be able to work productively again! Wow!
Even if you're not having any obvious computer problems, you could still be in danger. That's why I very highly recommend that you still use MyCleanPC. After all, it will boost your PC & internet speed to levels you never would think are possible!
MyCleanPC: For a Cleaner, Safer PC.
-----------
A few weeks ago, I foolishly ran a strange executable file that one of my acquaintances sent me by email. As someone who doesn't know much about computers, at the time, I thought nothing of it. "Why would my acquaintance want to hurt me?" Following this line of thought, I ran the file without question.
How naive I was. Despite having what was supposedly the best anti-virus software out right then, a virus took over my computer and held it hostage. It was pretending to be a warning from Windows telling me to buy some strange anti-virus software I'd never heard of from a company I'd never heard of to remove the virus.
This immediately set alarm bells off in my head. "How could this happen? My anti-virus is supposed to be second to none!" Faced with this harsh reality, I decided to take it to a PC repair shop for repair. They gladly accepted the job, told me it'd be fixed in a few days, and sent me off with a smile.
A few days later, they called me and told me to come pick up my computer. At the time, I noticed that they sounded like whimpering animals, but I concluded that it must just be stress from work. When I arrived, they, with tears in their eyes, told me that the virus was so awful and merciless that they were unable to remove it. "Ah," I thought. "That must be why they sounded so frustrated and pathet
Don't worry fellow humans. I bet it has no chance at solving the jig saw puzzles in the new iPad game called JiggleSaw. The pictures aren't fixed but constantly changing. That would require a huge amount of processing power.
"With a speed of 10,000 pieces per 24 hours" is not useful. What is the time complexity?
That is an easy problem to solve if you don't care which side of the document you recover.
They should program in virtual 3 year old to attempt occasional toddler attacks on the puzzle, attempting to eat, and occasionally succeeding in carting off pieces it then the system has to scour it's house (system files?) to find...
"Of course, as well as having fun beating humans at another recreational pastime, the technique could be used to unscramble shredded documents, as per the recent DARPA challenge."
Now I have a valid reason to put a burning barrel in my office. Now, if I can only find a reason to stock Thunderbird and some 'bos, it'd be a pleasurable place to work.
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