
	Where results make sense

Topic: Blocks world

	Blocks world - Wikipedia, the free encyclopedia
		The blocks world is one of the most famous planning domains in artificial intelligence.
		The catch is that only one block may be moved at a time: it may be either placed on the table or placed atop another block.
		The simplicity of this toy world lends itself readily to symbolic or classical A.I. approaches, in which the world is modelled as a set of abstract symbols which may be reasoned about.
	en.wikipedia.org /wiki/Blocks_world (153 words)

	Urea blocks
		Blocks formed in metal moulds were removed immediately from the moulds and those made in small plastic moulds were removed after 16 to 24 hours.
		Ten percent cement in the blocks without poultry litter gave satisfactory results (formula 2, Table 1) whereas, with poultry litter, the block was of medium H and C. Increasing the level of cement (Table 1, formula 5) to 15% gave good blocks even in the presence of litter.
		Blocks can be made using a variety of agricultural by-products and animal wastes; the choice of ingredients should be made according to their availability, nutritional value, ease of handling and their overall effect on the quality of the block.
	www.cipav.org.co /lrrd/lrrd5/3/syria1.htm (3123 words)

	Tower block - Wikipedia, the free encyclopedia
		A tower block, block of flats, or apartment block, is a multi-unit high-rise apartment building.
		Tower blocks were first built in the UK after the Second World War, in many cases as a "quick-fix" to cure problems caused by crumbling and unsanitary 19th century dwellings or to replace buildings destroyed by aerial bombing.
		In the United States tower blocks are commonly referred to as midrise or highrise apartment buildings, depending on their height, while buildings that house fewer flats (apartments), or are not as tall as the tower blocks, are called lowrise apartment buildings.
	en.wikipedia.org /wiki/Tower_block (807 words)

	The Blocks Problem
		where a and b are block numbers, puts block a onto the top of the stack containing block b, after returning any blocks that are stacked on top of block a to their initial positions.
		All blocks on top of block b are moved to their initial positions prior to the pile taking place.
		If there is at least a block on it, the colon must be followed by one space, followed by a list of blocks that appear stacked in that position with each block number separated from other block numbers by a space.
	acm.uva.es /problemset/v1/101.html (556 words)

	Blocks World Knowledge (Site not responding. Last check: 2007-11-03)
		For example, to use means-ends analysis, it is useful to generate operators based on the goal, such as operators to move block B on top of block C. Apply an operator to transform a state. TK6: The operator that moves a block changes two characteristics of the state.
		The block that was moved is no longer on top of the object that was supporting it (namely, another block or the table), and it is now on top of either another block or the table.
		SK2: If there are two operators that move blocks into their desired position in the same tower, prefer the operator whose block in the desired state is lower in the tower.
	www.isi.edu /soar/users-manual/html/soar6-manual.info.Blocks_World_Knowledge.html (480 words)

	Actions in the Blocks World
		We choose to model four types of action in the blocks world, all performed by the robot gripper: grasping a block, picking up a block, putting a block down onto another, and putting a block down onto the table.
		The post-condition of an action is traditionally split into two separate structures: the add-set, holding those literals made true by the effect of the action, and the delete-set, holding only those literals made false by the effect of the action.
		The actions moving the other blocks b,c,d can all be written in exactly the same form, giving a total of 36 action instances (4 grasp's, 4 liftup's from the table, 4 putdown's onto the table, 12 putdown's between blocks and 12 liftup's between blocks).
	scom.hud.ac.uk /scomtlm/book/node150.html (476 words)

	CogSci 108b: The Blocks-World Problem Solver
		The location where the block is to be moved might already have blocks on it, and those blocks need to be moved elsewhere.
		Putting a block down on another one is fairly simple, as the problem solver has already made sure that there is room for the grasped block.
		It is given two blocks: the first is the block to be moved, and the second is the block to be moved.
	cogsci.ucsd.edu /~batali/108b/lectures/blocks.html (2314 words)

	SATLIB - Benchmark Problems
		Given an initial and a goal configuration of blocks, the problem is to find a sequence of operators which, when applied to the initial configuration, leads to the goal situation.
		Blocks can only be moved when they are clear, i.e., no other block is piled on top of them, and they can be only moved on top of blocks which are clear or onto the table.
		There is an optimisation and a decision variant of the Blocks World Planning problem: In the optimisation variant, the goal is to find a shortest plan, whereas in the decision variant, the question is to decide whether a plan of a given length exists.
	cs.ubc.ca /~hoos/SATLIB/Benchmarks/SAT/PLANNING/BlocksWorld/descr.html (666 words)

	All About Blocks
		Little wonder that the block area is where math, science, literacy, and social skills come alive in a variety of fun, yet meaningful learning experiences.
		Another reason blocks provide such a language-rich environment is because of the pretend play that often goes along with them.
		Preschoolers are wonderful at using simple blocks to represent characters, or to create a set so that they can recreate a favorite story or experience (going to the beach with mom and dad) over and over again.
	www.scholastic.com /earlylearner/experts/learning/3_5_blocks.htm (1083 words)

	World Products - LS7X - Block & Head — Overview — GM High Tech (Site not responding. Last check: 2007-11-03)
		World claims it is of much higher yield strength than any of the alloys GM uses.
		World claims that the alloy is so strong that the need for helicoils is actually eliminated.
		World's oiling system also allows the cam tunnel to be bored out to 60 mm; do this on a GM block...
	www.gmhightechperformance.com /tech/0603htp_world_products_ls7x_block_head_review (2148 words)

	4.3 Blocks World
		We implemented a classical Blocks World domain with the two operators in Figure 2.
		However, it is trivial to generate a correct, but suboptimal, plan in linear time using the naive algorithm: put all blocks on the table and build the desired towers from the bottom up.
		This planner is a programmatic implementation of the naive algorithm using the facilities introduced in Section 3.4.2.
	www.cs.cmu.edu /afs/cs/project/jair/pub/volume15/ambite01a-html/node25.html (587 words)

	nintendope: more tomfoolery from doctor poppycock
		While playing super mario brothers for the millionth time a rumour arises about something called a "minus world." It is suposedly a secret world in the game that was only accesible by breaking certain blocks in World 1-2.
		In world 1-1 at the end with the pipe: you break every brick on the ceiling, by jumping, except the very last one.
		The truth about the Minus World is that it DOES exist, and it is accessed by the method described by fellow Canadian Dave Standish earlier.
	nintendope.iodized.net /minusworld (860 words)

	A Blocks World Learning Example -- Winston (1975) (Site not responding. Last check: 2007-11-03)
		The goal is to construct representation of the definitions of concepts in this domain.
		Concepts such a house - brick (rectangular block) with a wedge (triangular block) suitably placed on top of it, tent - 2 wedges touching side by side, or an arch - two non-touching bricks supporting a third wedge or brick, were learned.
		Input was a line drawing of a blocks world structure.
	www.cs.cf.ac.uk /Dave/AI2/node145.html (189 words)

	An example task---The Blocks World (Site not responding. Last check: 2007-11-03)
		A block is either on the table or centered on top of another block.
		The blocks can be moved one at a time from the table to the top of a clear block, from on top of a block to the table, or from on top of a block to a clear block.
		We will use the initial configuration where block A is on block B, and blocks B and C are on the table.
	www.isi.edu /soar/users-manual/html/soar6-manual.info.An_example_task---The_Blocks_World.html (148 words)

	Proposal of the initial state (Site not responding. Last check: 2007-11-03)
		For subgoals that are applying an operator, the initial state is usually either the same as the superstate (the state to which the operator was being applied), or it is a new state with a pointer back to the superstate.
		Below is an example for the Blocks World where the same state is used.
		As a convention, the attribute ^superstate is used for superstates and ^io-state is used for the top state in which all input and output is performed.
	www.isi.edu /soar/users-manual/html/soar6-manual.info.Proposal_of_the_initial_state.html (397 words)

	Blocks World Page (Site not responding. Last check: 2007-11-03)
		The Blocks World is an artificial planning domain of little direct practical significance.
		We began a research project on Blocks World in 1994, found it fascinating and continued to write papers, technical reports and programs about it, intensively for two years and sporadically ever since.
		Blocks World Tamed: Ten Thousand Blocks in Under a Second (Slaney/Thiébaux, 1995).
	arp.anu.edu.au /~jks/bw.html (347 words)

	Blocks World (Site not responding. Last check: 2007-11-03)
		A block can be moved by selecting it (clicking on it) and then clicking on the destination location.
		After a while, a goal configuration can be set in the smaller blocks world (labelled Goal state) and the system can be asked to solve the reconfiguration problem by clicking on the Solve button.
		A solution is a sequence of block configurations starting with the current configuration in the bigger blocks world and ending with the goal configuration as requested in the smaller blocks world.
	www.csun.edu /~andrzej/Neurosolver/BlocksWorld.html (156 words)

	Logic in the Blocks: Science News Online, Aug. 17, 2002 (Site not responding. Last check: 2007-11-03)
		A player starts with rectangular blocks shaped like cars and trucks, each in a given location on a square tray, and figures out a sequence of moves that frees a target vehicle from the traffic jam and gets it to the exit.
		The subject of dozens of research papers during the past few decades, Blocks World requires sorting and combining several stacks of colored blocks to match a taller stack.
		If and only if either block A or block B slides outward, a sequence of moves permits C to slide in.
	www.sciencenews.org /20020817/bob10.asp (2357 words)

	The Blocks World as an Approximate Theory (Site not responding. Last check: 2007-11-03)
		Whether block x is on block y may be ambiguous in the real world.
		Block x may be partly on and partly off.
		approximates a theory in which blocks can be in different orientations on each other or in the air or on the table in quite different sense than numerical approximation.
	www-formal.stanford.edu /jmc/approximate/node6.html (300 words)

	Blocks World (Site not responding. Last check: 2007-11-03)
		Block block1 = new Block("block", "b1", 2, 2, 0, 0, "Nil", 0, "Nil");
		Block block2 = new Block("block", "b2", 2, 2, 2, 0, "Nil", 0, "Nil");
		Block block3 = new Block("block", "b3", 4, 4, 4, 0, "Nil", 0, "Nil");
	www.ecst.csuchico.edu /~depontje/CSCI322/lab4/ReadMeToo.htm (614 words)

	Macromedia - Developer Center : Using Blackboard Building Blocks with Macromedia Flash MX Technology (Site not responding. Last check: 2007-11-03)
		Blackboard Building Blocks is a free framework for developing external applications and "hooking" them directly into Blackboard.
		Blackboard Building Blocks allows third-party vendors, developers, and institutions to use the Blackboard platform to build new applications, extend existing technologies, and integrate them into external (back-office) systems.
		Utilizing the numerous objects and methods exposed via the Building Blocks API's, these applications and tools extend the Blackboard platform in areas such as content management, instant messaging, and handheld support.
	www.macromedia.com /desdev/mx/blackboard/articles/blocks.html (952 words)

	Depth-first search in blocks world (Site not responding. Last check: 2007-11-03)
		We can representation a state of blocks world as a list of stacks, like '((a b c)(d e)()(f g)).
		The answer is a list of worlds in which c has been moved to each of the other three stacks.
		Now we are ready to move one block on top of another, given an initial world.
	www.csm.astate.edu /~rossa/cs4-5483/blocksearch.html (472 words)

	Bwstates Page (Site not responding. Last check: 2007-11-03)
		Consider the familiar planning domain Blocks World (BW) with just two blocks, a and b.
		Blocks World is by far the most frequently used example in the planning literature.
		Despite the fact that much contemporary work in AI planning is moving away from such artificial examples, almost everyone who produces a formalism or a planner refers to the blocks at least for illustration.
	users.rsise.anu.edu.au /~jks/bwstates.html (295 words)

	Lego Land
		In this virtual world the visitor creates five blocks and is able to move and orient them anywhere in the room.
		To select a block, hold the wand near the red sphere that is attached to the block and press the button.
		When the virtual world setup is finished, place the real world blocks in the same configuration.
	www.cs.unc.edu /~dorianm/academics/comp239/legoland.html (389 words)

	World- Iran Blocks Access to Web Site - AOL News (Site not responding. Last check: 2007-11-03)
		TEHRAN, Iran (AP) - Iran has blocked access to the popular video-sharing Web site YouTube.com, and a media rights group warned Tuesday that Internet censorship in the Islamic state is on the rise.
		Iran's Shiite cleric-run government regularly blocks opposition Web sites, including blogs, and the number of sites that bring up the "unauthorized" message has been increasing over the past year.
		From the latest from Iraq and Iran, to the rest of the world around us, we deliver the information you need.
	news.aol.com /world/story/_a/iran-blocks-access-to-web-site/n20061205165009990040 (557 words)

	GAMEVIL USA \| The Best in Mobile Games (Site not responding. Last check: 2007-11-03)
		Experience a fun world of 3D wonder and excitement with Blocks, a non-stop action puzzle game for all ages!
		• Explore 15 stages, hopping from block to block and completing a variety of missions.
		Blocks challenges your visualization skills as you solve puzzles and navigate through the colorful and fun Blocks world in 3D.
	www.gamevil.com /eng_new/game_view.jsp?game_id=9&category=3 (159 words)

	The World of Blocks
		In heart blocks (AV Blocks), the third degree is the worst, so if this helps you remember, more power to you.
		Depending on where the problem or block is, the EKG strip is telling you where the ischemia is. Now I need to bring this concept to light here.
		In this block, which is the most serious of all the blocks, there is no communication at all between the Atrium and the Ventricles.
	www.randylarson.com /acls/blocks.html (1332 words)

	Logic in the Blocks: Science News Online, Aug. 17, 2002
		Only the block atop a stack can be picked up and placed on top of another stack.
		Rush Hour's computational complexity is greater than that of Blocks World, whose time to a solution increases algebraically rather than exponentially.
		Further information about Blocks World is available at http://arp.anu.edu.au/~jks/bw.html.
	www.sciencenews.org /articles/20020817/bob10.asp (2357 words)

	People's Weekly World - ‘Building blocks, crossing borders’
		The basketball and arts activities, hosted by families and block leaders, are scheduled to take place on different blocks each week, alternating between the east and west sides of the working-class community of Little Village.
		Jesus Garcia, LVCDC’s executive director, told the World that this program is important because it is “a positive alternative for youth and families to come together and engage in creative energy and sports.” Garcia also hopes the program will fuel enthusiasm for a new park in the neighborhood.
		The blocks will be closed to traffic each Friday evening, ensuring a safe space with face painting, barbecuing and information booths on health and safety.
	www.pww.org /article/articleview/9437/1/329 (778 words)

	Assignment 1: Blocks World Planning Problem (Site not responding. Last check: 2007-11-03)
		For example, when you want to move block b from the top of x to the top of block y, b has to be on top of x to start with, and there must not be any blocks on top of x and y (except when y is the table).
		The easiest-to-understand approach to this problem is to move every block to the top of the table and stack them up according to the goal state.
		The most obvious and extreme example is when you are given an initial state that is the same as the final state, then it is a total waste of time to take all the blocks away and put them back in their position.
	carbon.cudenver.edu /~tdai/assignment01.html (603 words)

	Help... Crisis in Blocks World
		The 'Prolog' approach-- In this case, I notice that it is the relationships between a given group of objects that actually define the world.
		Second, having the Prolog-like ability to infer certain things about objects and their relationships to eachother in the blocks world would be great.
		In addition, there would also have to be an automatic engine that would move other objects around to preserve the coordinate relationships between other objects as much as possible when the location of one were either refined or introduced.
	www.comphelpone.com /new-5970623-5149.html (845 words)

Try your search on: Qwika (all wikis)