Query rewriting and answering under constraints in data integration
... relations in Ψ, A = A1 , . . . , An (n ≥ 0) is a sequence of attributes of r1 , and B = B1 , . . . , Bn is a sequence of attributes of r2 . (iii) ΣK is a set of key dependencies (KDs), i.e., a set of assertions of the form key(r) = A, where r is a relation in the global schema, and A = A1 , . . . , ...
... relations in Ψ, A = A1 , . . . , An (n ≥ 0) is a sequence of attributes of r1 , and B = B1 , . . . , Bn is a sequence of attributes of r2 . (iii) ΣK is a set of key dependencies (KDs), i.e., a set of assertions of the form key(r) = A, where r is a relation in the global schema, and A = A1 , . . . , ...
Introduction to AI, Basic Search Methods
... …the study of solving ill-formed problems …"nothing more" than advanced algorithms research …cool stuff! Machine learning, data mining, speech, language, vision, web agents…and you can actually get paid a lot for having fun! …what other CS folks don’t yet know how to do, and we AIers aren’t always t ...
... …the study of solving ill-formed problems …"nothing more" than advanced algorithms research …cool stuff! Machine learning, data mining, speech, language, vision, web agents…and you can actually get paid a lot for having fun! …what other CS folks don’t yet know how to do, and we AIers aren’t always t ...
Introduction of Markov Decision Process
... For n ≥ 2 (greater than or equal to two weeks decision), it is better to do advertisement. For this problem, convergence seems to have taken place at n = 2. But for general problem, it is usually difficult to quantify. Some limitations of this value-iteration method: What about infinite stages? What ...
... For n ≥ 2 (greater than or equal to two weeks decision), it is better to do advertisement. For this problem, convergence seems to have taken place at n = 2. But for general problem, it is usually difficult to quantify. Some limitations of this value-iteration method: What about infinite stages? What ...
European and German Grid Projects
... the widespread uptake of e-Science applications throughout the European Research Area • Four key objectives: – integrating Grid technological developments from across Europe; – establishing a Europe-wide Grid infrastructure for science and industry with a focus on heterogeneity and interoperability; ...
... the widespread uptake of e-Science applications throughout the European Research Area • Four key objectives: – integrating Grid technological developments from across Europe; – establishing a Europe-wide Grid infrastructure for science and industry with a focus on heterogeneity and interoperability; ...
Visibility with a Moving Point of View
... scene is viewed from a sequence of different points of view. More specifically, successive images correspond to perspective views of a polygonal scene from sample points along a straight trajectory, or flightpath. Though this problem is quite basic, it is also widely applicable in flight simulation ...
... scene is viewed from a sequence of different points of view. More specifically, successive images correspond to perspective views of a polygonal scene from sample points along a straight trajectory, or flightpath. Though this problem is quite basic, it is also widely applicable in flight simulation ...
Variation and Mathematics Pedagogy
... these indications that a learner has experienced mathematics? These activities are no doubt related to mathematics, but are they critical enough to ensure the occurrence of a genuine mathematical experience? To address this question, I may ask the metaphysical question of what mathematics is, but su ...
... these indications that a learner has experienced mathematics? These activities are no doubt related to mathematics, but are they critical enough to ensure the occurrence of a genuine mathematical experience? To address this question, I may ask the metaphysical question of what mathematics is, but su ...
THE PROGRAMME SPECIFICATION 1. Programme title and designation
... (computer architecture, networks and communications etc.) and programming concepts and various programming paradigms. 3. Systematic development of large scale software (systems analysis, design, implementation and evaluation). 4. Modern information technology (parallel/distributed computing, network ...
... (computer architecture, networks and communications etc.) and programming concepts and various programming paradigms. 3. Systematic development of large scale software (systems analysis, design, implementation and evaluation). 4. Modern information technology (parallel/distributed computing, network ...
Analyses Ethnomathematics. Part 1
... Vikings, with their ship-building, their navigation instruments and their symbols were, and still are, intriguing. I was impressed by the long length of the days and by the fact that in the Northern part of the region, which I visited later, the days lasted six months! How was the cosmovision of the ...
... Vikings, with their ship-building, their navigation instruments and their symbols were, and still are, intriguing. I was impressed by the long length of the days and by the fact that in the Northern part of the region, which I visited later, the days lasted six months! How was the cosmovision of the ...
Equational Reasoning, Intended Semantics
... Going higher is also wrong (violating a precondition gets you to the top) If you go up, you can then go down a different path to get a wrong result ...
... Going higher is also wrong (violating a precondition gets you to the top) If you go up, you can then go down a different path to get a wrong result ...
Theoretical computer science
Theoretical computer science is a division or subset of general computer science and mathematics that focuses on more abstract or mathematical aspects of computing and includes the theory of computation.It is not easy to circumscribe the theory areas precisely and the ACM's Special Interest Group on Algorithms and Computation Theory (SIGACT) describes its mission as the promotion of theoretical computer science and notes:Template:""To this list, the ACM's journal Transactions on Computation Theory adds coding theory, computational learning theory and theoretical computer science aspects of areas such as databases, information retrieval, economic models and networks. Despite this broad scope, the ""theory people"" in computer science self-identify as different from the ""applied people."" Some characterize themselves as doing the ""(more fundamental) 'science(s)' underlying the field of computing."" Other ""theory-applied people"" suggest that it is impossible to separate theory and application. This means that the so-called ""theory people"" regularly use experimental science(s) done in less-theoretical areas such as software system research. It also means that there is more cooperation than mutually exclusive competition between theory and application.