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I'm not quite how accurate to say that the "best AI work now is in video games and movies".
I think that, like in graphics, the best looking technology is often in industry, but it isn't necessarily what will give us intelligent machines or computers, just things that appear plausibly realistic.
Mike Kulas, one of the original authors of Descent, told me that when he was in CS grad school studying AI, one of his professors told him that nothing interesting in AI will happen in the professor's lifetime. Obviously, the difference is that for commercial purposes, new just means "new to me" whereas in academia, new really means new, where nobody has done it before.
Posted by: Andrew Wu at December 16, 2002 2:14 PM
It's true that the word "best" as applied to A.I. is pretty subjective. After all, there's no single goal of A.I. Some people are working on ontologies and mapping out common-sense knowledge, like Doug Lenat with Cyc. Others are developing content-analysis tools like the Latent Semantic Analysis guys. Some are still slugging away at the original Turing proposition, like the chatbot guys. It's hard to say that one is "better" than the others, true, since each is pursuing quite different goals.
Posted by: Clive at December 16, 2002 2:44 PM
I think that, like in graphics, the best looking technology is often in industry, but it isn't necessarily what will give us intelligent machines or computers, just things that appear plausibly realistic.
Posted by: logo at January 8, 2004 8:37 AM
I think that, like in graphics, the best looking technology is often in industry, but it isn't necessarily what will give us intelligent machines or computers, just things that appear plausibly realistic.
Posted by: sonneries at January 8, 2004 8:47 AM
Posted by: Online Casino at January 16, 2004 11:53 AM
This code should compile and run just fine, and you should see no changes in how the program works. So why did we do all of that?
Posted by: Gentile at January 20, 2004 11:23 AM
This is another function provided for dealing with the heap. After you've created some space in the Heap, it's yours until you let go of it. When your program is done using it, you have to explicitly tell the computer that you don't need it anymore or the computer will save it for your future use (or until your program quits, when it knows you won't be needing the memory anymore). The call to simply tells the computer that you had this space, but you're done and the memory can be freed for use by something else later on.
Posted by: Annanias at January 20, 2004 11:24 AM
For this program, it was a bit of overkill. It's a lot of overkill, actually. There's usually no need to store integers in the Heap, unless you're making a whole lot of them. But even in this simpler form, it gives us a little bit more flexibility than we had before, in that we can create and destroy variables as we need, without having to worry about the Stack. It also demonstrates a new variable type, the pointer, which you will use extensively throughout your programming. And it is a pattern that is ubiquitous in Cocoa, so it is a pattern you will need to understand, even though Cocoa makes it much more transparent than it is here.
Posted by: Agnes at January 20, 2004 11:24 AM
Earlier I mentioned that variables can live in two different places. We're going to examine these two places one at a time, and we're going to start on the more familiar ground, which is called the Stack. Understanding the stack helps us understand the way programs run, and also helps us understand scope a little better.
Posted by: Digory at January 20, 2004 11:24 AM
Seth Roby graduated in May of 2003 with a double major in English and Computer Science, the Macintosh part of a three-person Macintosh, Linux, and Windows graduating triumvirate.
Posted by: Vincent at January 20, 2004 11:25 AM
For this program, it was a bit of overkill. It's a lot of overkill, actually. There's usually no need to store integers in the Heap, unless you're making a whole lot of them. But even in this simpler form, it gives us a little bit more flexibility than we had before, in that we can create and destroy variables as we need, without having to worry about the Stack. It also demonstrates a new variable type, the pointer, which you will use extensively throughout your programming. And it is a pattern that is ubiquitous in Cocoa, so it is a pattern you will need to understand, even though Cocoa makes it much more transparent than it is here.
Posted by: Gabriel at January 20, 2004 11:25 AM
This is another function provided for dealing with the heap. After you've created some space in the Heap, it's yours until you let go of it. When your program is done using it, you have to explicitly tell the computer that you don't need it anymore or the computer will save it for your future use (or until your program quits, when it knows you won't be needing the memory anymore). The call to simply tells the computer that you had this space, but you're done and the memory can be freed for use by something else later on.
Posted by: Reginald at January 20, 2004 11:25 AM
When compared to the Stack, the Heap is a simple thing to understand. All the memory that's left over is "in the Heap" (excepting some special cases and some reserve). There is little structure, but in return for this freedom of movement you must create and destroy any boundaries you need. And it is always possible that the heap might simply not have enough space for you.
Posted by: Vincent at January 20, 2004 11:25 AM
This code should compile and run just fine, and you should see no changes in how the program works. So why did we do all of that?
Posted by: Thomas at January 20, 2004 11:26 AM
Let's take a moment to reexamine that. What we've done here is create two variables. The first variable is in the Heap, and we're storing data in it. That's the obvious one. But the second variable is a pointer to the first one, and it exists on the Stack. This variable is the one that's really called favoriteNumber, and it's the one we're working with. It is important to remember that there are now two parts to our simple variable, one of which exists in each world. This kind of division is common is C, but omnipresent in Cocoa. When you start making objects, Cocoa makes them all in the Heap because the Stack isn't big enough to hold them. In Cocoa, you deal with objects through pointers everywhere and are actually forbidden from dealing with them directly.
Posted by: Tobias at January 20, 2004 11:26 AM
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I'm not quite how accurate to say that the "best AI work now is in video games and movies".
I think that, like in graphics, the best looking technology is often in industry, but it isn't necessarily what will give us intelligent machines or computers, just things that appear plausibly realistic.
Mike Kulas, one of the original authors of Descent, told me that when he was in CS grad school studying AI, one of his professors told him that nothing interesting in AI will happen in the professor's lifetime. Obviously, the difference is that for commercial purposes, new just means "new to me" whereas in academia, new really means new, where nobody has done it before.
Posted by: Andrew Wu at December 16, 2002 2:14 PM
It's true that the word "best" as applied to A.I. is pretty subjective. After all, there's no single goal of A.I. Some people are working on ontologies and mapping out common-sense knowledge, like Doug Lenat with Cyc. Others are developing content-analysis tools like the Latent Semantic Analysis guys. Some are still slugging away at the original Turing proposition, like the chatbot guys. It's hard to say that one is "better" than the others, true, since each is pursuing quite different goals.
Posted by: Clive at December 16, 2002 2:44 PM
I think that, like in graphics, the best looking technology is often in industry, but it isn't necessarily what will give us intelligent machines or computers, just things that appear plausibly realistic.
Posted by: logo at January 8, 2004 8:37 AM
I think that, like in graphics, the best looking technology is often in industry, but it isn't necessarily what will give us intelligent machines or computers, just things that appear plausibly realistic.
Posted by: sonneries at January 8, 2004 8:47 AM
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Posted by: Online Casino at January 16, 2004 11:53 AM
This code should compile and run just fine, and you should see no changes in how the program works. So why did we do all of that?
Posted by: Gentile at January 20, 2004 11:23 AM
This is another function provided for dealing with the heap. After you've created some space in the Heap, it's yours until you let go of it. When your program is done using it, you have to explicitly tell the computer that you don't need it anymore or the computer will save it for your future use (or until your program quits, when it knows you won't be needing the memory anymore). The call to simply tells the computer that you had this space, but you're done and the memory can be freed for use by something else later on.
Posted by: Annanias at January 20, 2004 11:24 AM
For this program, it was a bit of overkill. It's a lot of overkill, actually. There's usually no need to store integers in the Heap, unless you're making a whole lot of them. But even in this simpler form, it gives us a little bit more flexibility than we had before, in that we can create and destroy variables as we need, without having to worry about the Stack. It also demonstrates a new variable type, the pointer, which you will use extensively throughout your programming. And it is a pattern that is ubiquitous in Cocoa, so it is a pattern you will need to understand, even though Cocoa makes it much more transparent than it is here.
Posted by: Agnes at January 20, 2004 11:24 AM
Earlier I mentioned that variables can live in two different places. We're going to examine these two places one at a time, and we're going to start on the more familiar ground, which is called the Stack. Understanding the stack helps us understand the way programs run, and also helps us understand scope a little better.
Posted by: Digory at January 20, 2004 11:24 AM
Seth Roby graduated in May of 2003 with a double major in English and Computer Science, the Macintosh part of a three-person Macintosh, Linux, and Windows graduating triumvirate.
Posted by: Vincent at January 20, 2004 11:25 AM
For this program, it was a bit of overkill. It's a lot of overkill, actually. There's usually no need to store integers in the Heap, unless you're making a whole lot of them. But even in this simpler form, it gives us a little bit more flexibility than we had before, in that we can create and destroy variables as we need, without having to worry about the Stack. It also demonstrates a new variable type, the pointer, which you will use extensively throughout your programming. And it is a pattern that is ubiquitous in Cocoa, so it is a pattern you will need to understand, even though Cocoa makes it much more transparent than it is here.
Posted by: Gabriel at January 20, 2004 11:25 AM
This is another function provided for dealing with the heap. After you've created some space in the Heap, it's yours until you let go of it. When your program is done using it, you have to explicitly tell the computer that you don't need it anymore or the computer will save it for your future use (or until your program quits, when it knows you won't be needing the memory anymore). The call to simply tells the computer that you had this space, but you're done and the memory can be freed for use by something else later on.
Posted by: Reginald at January 20, 2004 11:25 AM
When compared to the Stack, the Heap is a simple thing to understand. All the memory that's left over is "in the Heap" (excepting some special cases and some reserve). There is little structure, but in return for this freedom of movement you must create and destroy any boundaries you need. And it is always possible that the heap might simply not have enough space for you.
Posted by: Vincent at January 20, 2004 11:25 AM
This code should compile and run just fine, and you should see no changes in how the program works. So why did we do all of that?
Posted by: Thomas at January 20, 2004 11:26 AM
Let's take a moment to reexamine that. What we've done here is create two variables. The first variable is in the Heap, and we're storing data in it. That's the obvious one. But the second variable is a pointer to the first one, and it exists on the Stack. This variable is the one that's really called favoriteNumber, and it's the one we're working with. It is important to remember that there are now two parts to our simple variable, one of which exists in each world. This kind of division is common is C, but omnipresent in Cocoa. When you start making objects, Cocoa makes them all in the Heap because the Stack isn't big enough to hold them. In Cocoa, you deal with objects through pointers everywhere and are actually forbidden from dealing with them directly.
Posted by: Tobias at January 20, 2004 11:26 AM
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