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On Fuzzy Join Operators
"... Interval spaces form a quite extensive branch of abstract convexity theory and was introduced by J.Calder.In [4], fuzzy interval spaces are defined. In this paper, certain concepts like denseness, straightness and Ramification Property of fuzzy interval spaces are introduced and discussed. Furthermo ..."
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Cited by 2 (2 self)
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. Furthermore, fuzzy join operators are defined and some properties are studied.
kArbiter Join Operation *
"... kArbiter is a useful concept for solving the distributed hout ofk resources allocation problem. The distributed hout ofk resources allocation algorithms based on karbiter have the benefits of high faulttolerance and low communication cost. However, according to the definition of karbiter, it ..."
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arbiter, it is required to have a nonempty intersection among any (k+1) quorums in a karbiter. Consequently, constructing karbiters is difficult. The coterie join operation proposed by Neilsen and Mizuno produces a new and larger coterie by joining known coteries. In this paper, by extending the coterie join operation
Join Operations in Temporal Databases
, 2002
"... Joins are arguably the most important relational operators. Poor implementations are tantamount to computing the Cartesian product of the input relations. In a temporal database, the problem is more acute for two reasons. First, conventional techniques are designed for the evaluation of joins with ..."
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Cited by 16 (0 self)
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Joins are arguably the most important relational operators. Poor implementations are tantamount to computing the Cartesian product of the input relations. In a temporal database, the problem is more acute for two reasons. First, conventional techniques are designed for the evaluation of joins
XJoin: A ReactivelyScheduled Pipelined Join Operator
 IEEE DATA ENGINEERING BULLETIN
, 2000
"... Widearea distribution raises significant performance problems for traditional query processing techniques as data access becomes less predictable due to link congestion, load imbalances, and temporary outages. Pipelined query execution is a promising approach to coping with unpredictability in such ..."
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Cited by 137 (8 self)
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in such environments as it allows scheduling to adjust to the arrival properties of the data. We have developed a nonblocking join operator, called XJoin, which has a small memory footprint, allowing many such operators to be active in parallel. XJoin is optimized to produce initial results quickly and can hide
Locally finite spaces and the join operator
"... Abstract The importance of digital geometry in image processing is well documented. To understand global properties of digital spaces and manifolds we need a solid understanding of local properties. We shall study the join operator, which combines two topological spaces into a new space. Under the n ..."
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Abstract The importance of digital geometry in image processing is well documented. To understand global properties of digital spaces and manifolds we need a solid understanding of local properties. We shall study the join operator, which combines two topological spaces into a new space. Under
The Skyline Operator
 IN ICDE
, 2001
"... We propose to extend database systems by a Skyline operation. This operation filters out a set of interesting points from a potentially large set of data points. A point is interesting if it is not dominated by any other point. For example, a hotel might be interesting for somebody traveling to Nass ..."
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Cited by 558 (3 self)
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to Nassau if no other hotel is both cheaper and closer to the beach. We show how SQL can be extended to pose Skyline queries, present and evaluate alternative algorithms to implement the Skyline operation, and show how this operation can be combined with other database operations (e.g., join and Top N).
> Inclass JOIN operation.
"... Group operations (queries and methods) on complex objects of RxOsystem [1] are described in the paper formally. The state of any object is presumed to be represented as set of relation values. This presumption makes possible the formal transformation of complex object data to set of relations. Oper ..."
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Group operations (queries and methods) on complex objects of RxOsystem [1] are described in the paper formally. The state of any object is presumed to be represented as set of relation values. This presumption makes possible the formal transformation of complex object data to set of relations
Benchmarking Spatial Join Operations with Spatial Output
 Proceedings of the 21st International Conference on Very Large Data Bases
, 1998
"... The spatial join operation is benchmarked using variants of wellknown spatial data structures such as the Rtree, R tree, R + tree, and the PMR quadtree. The focus is on a spatial join with spatial output because the result of the spatial join frequently serves as input to subsequent spatial ..."
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Cited by 34 (8 self)
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The spatial join operation is benchmarked using variants of wellknown spatial data structures such as the Rtree, R tree, R + tree, and the PMR quadtree. The focus is on a spatial join with spatial output because the result of the spatial join frequently serves as input to subsequent
MJoin: A metadataaware stream join operator
 In DEBS
, 2003
"... Join algorithms must be redesigned when processing stream data instead of persistently stored data. Data streams are potentially infinite and the query result is expected to be generated incrementally instead of once only. Data arrival patterns are often unpredictable and the statistics of the data ..."
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Cited by 7 (3 self)
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needs to be maintained by the join operator to guarantee the precision of the result. In this paper, we propose a metadataaware stream join operator called MJoin which is able to exploit metadata to (1) detect and purge useless materialized data to save computation resources and (2) optimize
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