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517
Data cube: A relational aggregation operator generalizing groupby, crosstab, and subtotals
, 1996
"... Abstract. Data analysis applications typically aggregate data across many dimensions looking for anomalies or unusual patterns. The SQL aggregate functions and the GROUP BY operator produce zerodimensional or onedimensional aggregates. Applications need the Ndimensional generalization of these op ..."
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Cited by 860 (11 self)
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of these operators. This paper defines that operator, called the data cube or simply cube. The cube operator generalizes the histogram, crosstabulation, rollup, drilldown, and subtotal constructs found in most report writers. The novelty is that cubes are relations. Consequently, the cube operator can be imbedded
Data Cube: ARelational Aggregation Operator Generalizing GroupBy, CrossTab, and SubTotals
"... : Data analysis applications typically aggregate data across many dimensions looking for unusual patterns. The SQL aggregate functions and the GROUP BY operator produce zerodimensional or onedimensional answers. Applications need the Ndimensional generalization of these operators. This paper defi ..."
Abstract

Cited by 2 (0 self)
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defines that operator, called the data cube or simply cube. The cube operator generalizes the histogram, crosstabulation, rollup, drilldown, and subtotal constructs found in most report writers. The cube treats each of the N aggregation attributes as a dimension of Nspace. The aggregate of a
Data Cube: A Relational Aggregation Operator Generalizing GroupBy, CrossTab, and SubTotals Jim Gray
"... Abstract: Data analysis applications typ&ally aggregate data across many dimensions looking for unusual patterns. The SQL aggregate functions and the GROUP BY operator produce zerodimensional or onedimensional answers. Applications need the Ndimensional generalization of these operators. This ..."
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. This paper defines that operator, called the data cube or simply cube. The cube operator generalizes the histogram, crosstabulation, rollup, drilldown, and subtotal constructs found in most report writers. The cube treats each of the N aggregation attributes as a dimension of Nspace. The aggregate
Data Cube: A Relational Aggregation Operator
"... Data analysis applications typically aggregate data across many dimensions looking for unusual patterns. The SQL aggregate functions and the GROUt' BY operator produce zerodimensional or onedimensional answers. Applications need the Ndimensional generalization of these operators. This paper ..."
Abstract
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defines that operator, called the data cube or simply cube. The cube operator generalizes the histogram, crosstabulation, rollup, drilldown, and subtotal constructs found in most report writers. The cube treats each of the N aggregation attributes as a dimension of Nspace. The aggregate of a
Computing person and firm effects using linked longitudinal employeremployee data,” Center for Economic Studies, US Census Bureau,
, 2002
"... Abstract In this paper we provide the exact formulas for the direct least squares estimation of statistical models that include both person and firm effects. We also provide an algorithm for determining the estimable functions of the person and firm effects (the identifiable effects). The computati ..."
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Cited by 141 (16 self)
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The function J(i,t) indicates the employer j of i at date t where There are T i observations per individual and T N * total observations. The first component of equation In order to state the basic statistical relations more clearly we restate equation Identification and Estimation by Fixedeffect Methods
Matching and Record Linkage
 Business Survey Methods
, 1995
"... INTRODUCTION Matching has a long history of uses in statistical surveys and administrative data development. A business register consisting of names, addresses, and other identifying information such as total financial receipts might be constructed from tax and employment data bases (see chapters b ..."
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Cited by 123 (15 self)
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INTRODUCTION Matching has a long history of uses in statistical surveys and administrative data development. A business register consisting of names, addresses, and other identifying information such as total financial receipts might be constructed from tax and employment data bases (see chapters
Longerterm effects of Head Start
 American Economic Review
, 2002
"... Abstract Public early intervention programs like Head Start are often justified as investments in children. Yet nothing is known about the longterm effects of Head Start. This paper draws on unique data from the Panel Study of Income Dynamics to provide new evidence on the effects of Head Start on ..."
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Cited by 131 (5 self)
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describe these experiments before discussing the issue of nonrandom assignment. Sample summary statistics are reported in The data have been weighted so that our sample is representative of the 1995 white and African American populations. Specifically, we have constructed weights so that the joint
BUNDLE CONSTRUCTIONS OF Calibrated . . .
, 2004
"... We construct calibrated submanifolds of R 7 and R 8 by viewing them as total spaces of vector bundles and taking appropriate subbundles which are naturally defined using certain surfaces in R 4. We construct examples of associative and coassociative submanifolds of R 7 and of Cayley submanifolds ..."
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Cited by 2 (0 self)
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We construct calibrated submanifolds of R 7 and R 8 by viewing them as total spaces of vector bundles and taking appropriate subbundles which are naturally defined using certain surfaces in R 4. We construct examples of associative and coassociative submanifolds of R 7 and of Cayley submanifolds
Utilization of building waste in road construction
"... Roads are major consumers of aggregate and the influence of aggregate cost is more in total construction cost of the roads. In order to reduce the cost of construction of roads, the possibility of using building waste as aggregate in subbase and base course has been studied. Experimental studies we ..."
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Roads are major consumers of aggregate and the influence of aggregate cost is more in total construction cost of the roads. In order to reduce the cost of construction of roads, the possibility of using building waste as aggregate in subbase and base course has been studied. Experimental studies
Association of Researchers in Construction Management
"... The embodied energy (EE) of a residential building is estimated at 2040% of operation energy over its total usable life. However, this varies from one context to the other due to the primary energy used, technological advancement of a particular context and the methods used for the inventory analy ..."
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The embodied energy (EE) of a residential building is estimated at 2040% of operation energy over its total usable life. However, this varies from one context to the other due to the primary energy used, technological advancement of a particular context and the methods used for the inventory
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517