The Case for Determinism in Database Systems doc

... presents anintriguing future avenue of research.3. THE CASE FOR NONDETERMINISMBefore making the case for disallowing nondeterministicbehavior in database systems, it is important to revisit the arguments ... transactionclasses for which this may not be possible. We examinethese cases in depth in Section 4.2. For the purposes of the comparisons presented in the next section, however, weconsider a very straightforward ... decline in throughput in the two warehouse case relative to ten warehouse case as the percentage of mul-tipartition transactions increases. Hence the increasedcontention of the two warehouse case...

An Analysis of Geometric Modeling in Database Systems docx

... engineering database systems investigated in the remainder of this section. 3.1 The (Pure) Relational Database Systems In the introduction to this paper we cited a few reasons why database management ... systems have not been extensively used in technical applications. The main reason is that the data-modeling capabilities of the traditional database systems are insufficient for engineering ... Phrases: Engineering database systems, geometric modeling, object-oriented database systems INTRODUCTION Motivation The last few years have shown a rapid increase in the use of robots in mechanical...

Less Than Zero -The Case for a Falling Price Level in a Growing Economy (Hobart Papers) docx

... onlyprovidedthat the numberofdistinctfactorsofproductioncontinuedtobelessthan the numberofdistinctfinal goods.22 In everyother case, includingones in whichall-aroundchanges in productivityarecombinedwithidiosyncraticchangesinvolvingoneindustryorgroupofindustries, the totalnumberofpricechangesrequiredunderzeroinflationwill ... aresultofsomechange in the nominalquantityorvelocityofmoney,leadingtoachange in the overalldemand for finalgoodsandseIVices,thatis, in aggregatespendingor'nominalincome'.Acentralbankmight, in principleatleast,manage the stockofmoneyso astopreventsuchchanges in nominalincome,therebykeeping the pricelevelconstant.Byassumption,consumerpreferencesandtechnologyarenotchanging,sothat the onlyinformationconveyed ... astopreventsuchchanges in nominalincome,therebykeeping the pricelevelconstant.Byassumption,consumerpreferencesandtechnologyarenotchanging,sothat the onlyinformationconveyed byanypricelevelmovementisinformationconcerning the centralbank'sfailuretomaintaina stablevalueofnominalspending.Ananalogy...

The Case for Controlled-Atmosphere Killing of Poultry in Transport Containers Prior to Shackling as a Humane Alternative to Electrical Stunning doc

... problems for billions of birds each year in the U.S. alone. On the other hand, the controlled-atmosphere killing of birds in their transport containers (prior to shackling)—using a mixture of inert ... the many problems inherent in electrical stunning methods and the resulting animal suffering—especially in the U.S., where settings are kept disturbingly low—there is no reason for producers to ... the case, concluded that the pre-stun shocks were indeed cruel (Wolfson 1999). Other birds are able to completely avoid the stun bath by lifting their heads or flapping their wings, and these...

Tài liệu Security Essentials Day 2 Threat and the Need for Defense in Depth docx

... from these well-known attacks. In each case, there was a computer system vulnerability, and it was exploited. In each of the cases, there was an absence of defense in depth. In fact, in the case ... such as the Indexing Services exploited by the Code Red variants, are running. For an auditor this is an important starting point in hardening a system. By disabling unneeded services the likelihood ... compromising that system. Then the vulnerable host that got compromised can be used to attack other systems, either in the same facility or in other organizations. This is one reason for the statement...

Tài liệu Báo cáo khoa học: "Unsupervized Word Segmentation: the case for Mandarin Chinese" doc

... preprocessing (which theycall “settings”). In their settings 1 and 2, Wang etal. (2011) try not to rely on punctuation and char-acter encoding information (such as distinguishingLatin and Chinese ... characters). However, they opti-mize their parameter for each setting. We thereforeconsider that their system does take into account the level of processing which is performed on Latin char-acters ... the n-grams in a corpus)to decrease as we increase the length of the se-quence. Therefore the variation of the branching en-tropy (VBE) should be negative. When we observethat it is not the...

Tài liệu The Development of the Feeling for Nature in the Middle Ages and Modern Times doc

... singing in the green hedge, it fills the hills and valleyswith its voice. The night is stooping to the west, the day is rising from the east, the morning red is leapingfrom the clouds, the sun ... and naive feeling (the hunter is starting for the hunt in the early morning):When I come into the forest, still and silent everywhere, There's a look of slumber in it, but the air is fresh ... Country, Vintage, Evening, May, The Rose, Summer and Wine, Winter Night, Longing for Spring_, etc.Many are fresh and full of warm feeling, especially the Spring Songs:See the blossoming of Spring!...

Báo cáo "Photochemical smog introduction and episode selection for the ground-level ozone in Hanoi, Vietnam " docx

... present in the highest concentrations. In addition, the aerosols formed during the chemical reactions cause a marked reduction in visibility with a brownish cast in the atmosphere [13]. PAN in ... humans and other living organisms. Today, the use of cleaner (than coal) fuels has greatly reduced the occurrence of industrial smog in the industrialized areas. However, the massive burning of ... - industrial or winter smog (e.g. London smog) and photochemical or summer smog (e.g. Los Angeles smog). The industrial revolution has been the main cause for the increase of pollutants in...

Decoupled Query Optimization for Federated Database Systems docx

... these to includeother factors, assuming they can be easily estimated. Sincewe assume that the onlyinformation we have aboutthe costsof operations is through the interface to the bidders, the ... Bidding Granularity and Intra-site Pipelining : The bidding granularity refers to the choice of the opera-tions for which the optimizer requests costs. For maximumﬂexibility in scheduling the ... on the base tables.3. Request costs from the bidders for these join and scanoperations. Note that for each join, we only request the cost of performing that individual join, assuming thatthe...

The Case for Mindless Economics† docx

... shift in the demand for agood. For psychologists, the craving for drugs by seeing drug-dealers in the neighborhoodis similar to the craving f or cigarettes caused by drinking coﬀee. On the other ... brain — one for guessing how likely one is to win a nd lose, and another for 24evaluating the hedonic pleasure and pain of winning and losing-and another brainregion which combines probability ... choice),while certain processes in other parts (presumably in the midbrain) represent overwhelmingphysiological in uences (i.e., the hijac king of the primitiv e reward circuitry).“Many of the processes...

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