+86 0371 8654 9132

what is recursive aggregates

(PDF) Recursive Aggregates in Disjunctive Logic Programs ...

recursive aggregates, most others dif fer, and many of them do not satisfy desirable cri-teria, such as minimality 4. Relevant progress towards a suitable semantics for recursi ve.

More

Semantics and complexity of recursive aggregates in

2017-3-4  Aggregates significantly enhance the language of answer set programming (ASP), allowing for natural and concise mod-elling of many problems. Non-recursive (also called stratified) aggregates have clear semantics and capture a large class of meaningful problem specifications.

More

Semantics and Complexity of Recursive Aggregates in

2015-9-6  Semantics and Complexity of Recursive Aggregates in Answer Set Programming Wolfgang Faber, Gerald Pfeifer, Nicola Leone Department of Mathematics, University of Calabria, 87030 Rende (CS), Italy Abstract The addition of aggregates has been one of the most relevant enhancements to the language of answer set programming (ASP).

More

Semantics and complexity of recursive aggregates in

2011-1-1  Previous semantic definitions typically agree in the case of non-recursive aggregates, but the picture is less clear for aggregates involved in recursion. Some proposals explicitly avoid recursive aggregates, most others differ, and many of them do not satisfy desirable criteria, such as minimality or coincidence with answer sets in the ...

More

[1507.03923] Rewriting recursive aggregates in answer set ...

2015-7-15  A prototype system allows for experimenting with arbitrary recursive aggregates, which are also supported in the recent version 4.5 of the grounder \textsc{gringo}, using the methods presented in this paper. To appear in Theory and Practice of Logic Programming (TPLP), Proceedings of ICLP 2015.

More

Rewriting recursive aggregates in answer set programming ...

Rewriting recursive aggregates in answer set programming: back to monotonicity - Volume 15 Issue 4-5

More

(PDF) Rewriting recursive aggregates in answer set ...

A prototype system allows for experimenting with arbitrary recursive aggregates, which are also supported in the recent version 4.5 of the grounder gringo , using the methods presented in this paper.

More

Towards an efficient evaluation of recursive aggregates in ...

This paper is devoted to the evaluation of aggregates (avg, sum,) in deductive databases. Aggregates have proved to be a necessary modeling tool for a wide range of applications in non-deductive relational databases. They also appear to be important in connection with recursive rules, as shown by thebill of materials example. Several recent papers have studied the problem of semantics for ...

More

Optimizing Recursive Queries with Monotonic

2014-8-21  recursive graph algorithms with aggregates had played a role, DeALShas been designed as a very general system seeking to satisfy the many needs and lessons that had been learned in the course of a long experience with logic-based data languages,

More

sql - Aggregate functions are not allowed in a recursive ...

2019-7-31  ERROR: aggregate functions are not allowed in a recursive query's recursive term This is cause by avg(r.rank) in the recursive part of the query. Postgresql doesn't allow aggregate functions to be called in the recursive part of the query. Is there an alternative way to write this?

More

[PDF] Rewriting recursive aggregates in answer set ...

A prototype system allows for experimenting with arbitrary recursive aggregates, which are also supported in the recent version 4.5 of the grounder gringo, using the methods presented in this paper. Abstract Aggregation functions are widely used in answer set programming for representing and reasoning on knowledge involving sets of objects ...

More

Monotonic Properties of Completed Aggregates in

2019-10-20  Monotonic Properties of Completed Aggregates in Recursive Queries. 10/20/2019 ∙ by Carlo Zaniolo, et al. ∙ 0 ∙ share . The use of aggregates in recursion enables efficient and scalable support for a wide range of BigData algorithms, including those used in graph applications, KDD applications, and ML applications, which have proven difficult to be expressed and supported efficiently in ...

More

SSRS recursive count - how to get aggregates only for the ...

2016-1-12  I have a hierarchy of employees and managers which I had Reporting Services build using the Recursive Parent property. Here's a crude representation:-Jim Bob Ray -Steve Ricky Bobby Terry For example, I need a count of the people under Steve, but when I call Count(Fields!EmployeeID.Value, "Details", Recursive) I get 3 instead of 2. Of course, I ...

More

RaSQL (Recursive-aggregate-SQL)

2019-11-9  RaSQL (Recursive-aggregate-SQL) RaSQL language is an extension of the current SQL standard by allowing the use of the aggregates such as min, max, count and sum in the Common Table Expression (CTE) by which recursive queries can be expressed in the current standard.The exclusion of aggregates from the Recursive CTE of current standards was largely due to concerns about

More

(PDF) Recursive aggregates in disjunctive logic programs ...

Recursive aggregates in disjunctive logic programs: Semantics and complexity. Nicola Leone. Related Papers. Using unfounded sets for computing answer sets of programs with recursive aggregates. By Nicola Leone. Logic Programming and Nonmonotonic Reasoning: 8th International Conference, LPNMR 2005, Diamante, Italy, September 5-8, 2005, Proceedings.

More

Semantics and Complexity of Recursive Aggregates in

2015-9-6  Semantics and Complexity of Recursive Aggregates in Answer Set Programming Wolfgang Faber, Gerald Pfeifer, Nicola Leone Department of Mathematics, University of Calabria, 87030 Rende (CS), Italy Abstract The addition of aggregates has been one of the most relevant enhancements to the language of answer set programming (ASP).

More

Semantics and complexity of recursive aggregates in

2017-3-4  Aggregates significantly enhance the language of answer set programming (ASP), allowing for natural and concise mod-elling of many problems. Non-recursive (also called stratified) aggregates have clear semantics and capture a large class of meaningful problem specifications.

More

Semantics and complexity of recursive aggregates in

2011-1-1  Previous semantic definitions typically agree in the case of non-recursive aggregates, but the picture is less clear for aggregates involved in recursion. Some proposals explicitly avoid recursive aggregates, most others differ, and many of them do not satisfy desirable criteria, such as minimality or coincidence with answer sets in the ...

More

Rewriting recursive aggregates in answer set programming ...

Rewriting recursive aggregates in answer set programming: back to monotonicity - Volume 15 Issue 4-5

More

[PDF] Rewriting recursive aggregates in answer set ...

A prototype system allows for experimenting with arbitrary recursive aggregates, which are also supported in the recent version 4.5 of the grounder gringo, using the methods presented in this paper. Abstract Aggregation functions are widely used in answer set programming for representing and reasoning on knowledge involving sets of objects ...

More

Grounding Recursive Aggregates: Preliminary Report -

In this paper, we elaborate upon the treatment of aggregates during grounding in Gringo series 4. Consequently, our approach is applicable to grounding based on semi-naive database evaluation techniques. In particular, we provide a series of algorithms detailing the treatment of recursive aggregates and illustrate this by a running example.

More

(PDF) Rewriting recursive aggregates in answer set ...

A prototype system allows for experimenting with arbitrary recursive aggregates, which are also supported in the recent version 4.5 of the grounder gringo , using the methods presented in this paper.

More

Problem with recursion aggregates in SSRS 2008

The recursive aggregates works ok, until i have only first recursive group. When I try to add child group, the aggregates fails. works only on child group, on the parent - recursive group doesn't work. I tried to migrate the original report (version SSRS 2000) to SSRS2008 and i

More

Recursive Relationships in ER diagrams - GeeksforGeeks

2021-6-10  Recursive Relationships in ER diagrams. A relationship between two entities of a similar entity type is called a recursive relationship. Here the same entity type participates more than once in a relationship type with a different role for each

More

CiteSeerX — Recursive Aggregates in Disjunctive Logic ...

Nonrecursive (also called stratified) aggregates have clear semantics and capture a large class of meaningful prob-lem specifications. However, there are relevant problems for which recursive (unstratified) aggregate formulations are natural; the Company Control problem, illustrated next,is a typical example, cf. [1-4]. Example 1.

More

Problem with recursion aggregates in SSRS 2008

The recursive aggregates works ok, until i have only first recursive group. When I try to add child group, the aggregates fails. works only on child group, on the parent - recursive group doesn't work. I tried to migrate the original report (version SSRS 2000) to SSRS2008 and i

More

RaSQL (Recursive-aggregate-SQL)

2019-11-9  RaSQL (Recursive-aggregate-SQL) RaSQL language is an extension of the current SQL standard by allowing the use of the aggregates such as min, max, count and sum in the Common Table Expression (CTE) by which recursive queries can be expressed in the current standard.The exclusion of aggregates from the Recursive CTE of current standards was largely due to concerns about

More

(PDF) Recursive aggregates in disjunctive logic programs ...

Recursive aggregates in disjunctive logic programs: Semantics and complexity. Nicola Leone. Related Papers. Using unfounded sets for computing answer sets of programs with recursive aggregates. By Nicola Leone. Logic Programming and Nonmonotonic Reasoning: 8th International Conference, LPNMR 2005, Diamante, Italy, September 5-8, 2005, Proceedings.

More

Semantics and complexity of recursive aggregates in

2017-3-4  Aggregates significantly enhance the language of answer set programming (ASP), allowing for natural and concise mod-elling of many problems. Non-recursive (also called stratified) aggregates have clear semantics and capture a large class of meaningful problem specifications.

More

Rewriting recursive aggregates in answer set

2015-7-4  arbitrary recursive aggregates, which are also supported in the recent version 4.5 of the grounder GRINGO , using the methods presented in this paper. KEYWORDS: answer set programming; polynomial, faithful, and modular translation; aggregation

More

Semantics and Complexity of Recursive Aggregates in

2015-9-6  Semantics and Complexity of Recursive Aggregates in Answer Set Programming Wolfgang Faber, Gerald Pfeifer, Nicola Leone Department of Mathematics, University of Calabria, 87030 Rende (CS), Italy Abstract The addition of aggregates has been one of the most relevant enhancements to the language of answer set programming (ASP).

More

Semantics and complexity of recursive aggregates in

2011-1-1  Previous semantic definitions typically agree in the case of non-recursive aggregates, but the picture is less clear for aggregates involved in recursion. Some proposals explicitly avoid recursive aggregates, most others differ, and many of them do not satisfy desirable criteria, such as minimality or coincidence with answer sets in the ...

More

Semantics and complexity of recursive aggregates in

The addition of aggregates has been one of the most relevant enhancements to the language of answer set programming (ASP). They strengthen the modelling power of ASP in terms of natural and concise problem representations. Previous semantic definitions typically agree in the case of non-recursive aggregates, but the picture is less clear for aggregates involved in recursion.

More

It’s Who You Know: Graph Mining Using Recursive

2011-6-2  The aggregates can be computed over any real-valued feature (in-cluding other recursive features). We compute the means and sums of all feature values. Moreover, when applicable, we compute these for incoming and outgoing edges separately. 2.2.2 Pruning Recursive Features Clearly, the number of possible recursive features is infinite and

More

Problem with recursion aggregates in SSRS 2008

The recursive aggregates works ok, until i have only first recursive group. When I try to add child group, the aggregates fails. works only on child group, on the parent - recursive group doesn't work. I tried to migrate the original report (version SSRS 2000) to SSRS2008 and i

More

Recursive Relationships in ER diagrams - GeeksforGeeks

2021-6-10  Recursive Relationships in ER diagrams. A relationship between two entities of a similar entity type is called a recursive relationship. Here the same entity type participates more than once in a relationship type with a different role for each

More

15.00 - Recursive View Definition Restrictions - Teradata ...

Recursive View Definition Restrictions Three categorical sets of operators, clauses, and other miscellaneous features either cannot be used in the definition of a recursive view, or are restricted in their use in the definition. The categories of restriction are as follows. Restrictions defined by the ANSI SQL:2011 SQL...

More

Rewriting recursive aggregates in answer set programming ...

A prototype system allows for experimenting with arbitrary recursive aggregates, which are also supported in the recent version 4.5 of the grounder gringo, using the methods presented in this paper. AB - Aggregation functions are widely used in answer set

More

Monetary Aggregates and Monetary Policy

2010-11-19  M3. We disregard the other two monetary aggregates, M2+ and M2++, because some of the interest rate series used in these aggregates are unavailable. As shown in Table 1, M1, M1+, M1++, M2, and M3 are constructed by means of a recursive form of accounting that starts with M1 and adds blocks of items to M1 until the broadest of these aggregates ...

More