منابع مشابه
Let a Single FLWOR Bloom
To globally optimize execution plans for XQuery expressions, a plan generator must generate and compare plan alternatives. In proven compiler architectures, the unit of plan generation is the query block. Fewer query blocks mean a larger search space for the plan generator and lead to a generally higher quality of the execution plans. The goal of this paper is to provide a toolkit for developer...
متن کاملLet a hundred flowers bloom; let a hundred schools of thought contend
Economics over the years has become more and more abstract and divorced from events in the real world. Economists, by and large, do not study the workings of the actual economic system. They theorize about it. As Ely Devons, an English economist, once said at a meeting, “If economists wished to study the horse, they wouldn’t go and look at horses. They’d sit in their studies and say to themselv...
متن کاملFirst Year Programming: Let All the Flowers Bloom
We describe our criterion-referenced grading scheme for a first year programming subject, which has been designed to allow all participating students to achieve their full potential. Traditional norm-referenced grading schemes, where all students work on the same assessment tasks, result in tasks that may be effective for the middle-achieving student, but the tasks do not allow the weakest stud...
متن کاملAIDS vaccine development: let a thousand flowers bloom.
Chemotherapy against HIV infection has progressed rapidly, with the almost immediate discovery of a partially eVective drug, azidothymidine (AZT), followed by the chemically related dideoxy nucleoside analogues ddI, ddC, 3TC, and more recently the viral protease inhibitors. 2 In comparison, scientific work towards development of an eVective vaccine against HIV has moved far more slowly and ther...
متن کاملLet a Single FLWOR Bloom (to improve XQuery plan generation)
To globally optimize execution plans for XQuery expressions, a plan generator must generate and compare plan alternatives. In proven compiler architectures, the unit of plan generation is the query block. Fewer query blocks mean a larger search space for the plan generator and lead to a generally higher quality of the execution plans. The goal of this paper is to provide a toolkit for developer...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 2009
ISSN: 0028-0836,1476-4687
DOI: 10.1038/457974a