منابع مشابه
Smart Drill Down
We present smart drill-down, an operator for interactively exploring a relational table to discover and summarize “interesting” groups of tuples. Each group of tuples is described by a rule. For instance, the rule (a, b, ?, 1000) tells us that there are a thousand tuples with value a in the first column and b in the second column (and any value in the third column). Smart drill-down presents an...
متن کاملThe Drill Down Benchmark
Data Mining places specific requirements on DBMS query performance that cannot be evaluated satisfactorily using existing OLAP benchmarks. The DD Benchmark defined here provides a practical case and yardstick to explore how well a DBMS is able to support Data Mining applications. It was derived from real-life data mining tasks performed by our Data SurveyorTM tool running on a variety of DBMS b...
متن کاملA “Real” Drill-Down Java Graph
SAS/GRAPH® software enables you to summarize your data and present a summary using various charting options and view it from different directions. Drill down graphs let you slice and dice ONLY what you see in the main chart. To literally drill into a graph for additional information and charting, further coding is required, but easy to do. The method presented makes a chart vastly more dynamic....
متن کاملLiquidation Risk
Turmoil in financial markets is often accompanied by a significant decrease in market liquidity. Here, we investigate how such key risk measures as likelihood of insolvency, value at risk, and expected tail loss respond to bid– ask spreads that are likely to widen just when positions must be liquidated to maintain capital ratios. Our results show that this sort of illiquidity causes significant...
متن کاملEecient Roll-up and Drill-down Analysis in Relational Databases
Large collections of data, e.g. archives of POS (point-of-sale) in the consumer packaged goods as well as in prescription drugs, are typically iteratively classiied by a hierarchy 6] on the members of some attributes. Most of the fortune 500 businesses have found ways to consolidate the data archive into a relational database manager. One of the most common steps in \investigative data explorat...
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ژورنال
عنوان ژورنال: Ear, Nose & Throat Journal
سال: 2002
ISSN: 0145-5613,1942-7522
DOI: 10.1177/014556130208100608