In terms of the data relationships found by data mining, associations refers to:
A: patterns that describe a group to which an item belongs.
B: occurrences linked to a single event.
C: undiscovered groupings.
D: events linked over time.
A: patterns that describe a group to which an item belongs.
B: occurrences linked to a single event.
C: undiscovered groupings.
D: events linked over time.
B
举一反三
- Which of the followings are correct about difference-in-difference(DID) quasi-experiment study? A: time series data can be used for DID analysis B: panel data can be used for DID analysis C: DID analysis compares the changes over time in an outcome of the treatment group to changes over the same time period in the outcome of the control group. D: DID analysis is the changes over time in an outcome of the treatment group
- B______ d______ refers to extremely large data sets that may be analyzed computationally to reveal patterns, trends, and associations, especially related to human behavior and interactions.（Spelling check）
- Which kinds of the following data are currently published as Linked data in libraries? (目前在图书馆中下列哪种数据被主要发布为关联数据？) A: Bibliographic data (书目数据) B: User data (用户数据) C: Controlled vocabularies (受控词表) D: Scientific data (科学数据)
- 单选题 In a linked list, each element contains (). A: data B: a link C: a record D: a and b
- Q7 HashingQ7.1 Which critical operation is generally faster in a hash table than in a linked list?[img=673x100]18034cff9781dc9.png[/img] A: inserting an element into the data structure B: testing for the membership of an element in the data structure C: （无） D: （无）
内容
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单选题 An empty linked list consists of (). A: a variable B: two nodes C: data and a link D: a null head pointer
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单选题 () is a fixed-size, sequenced collection of elements of the same data type. A: An array B: A record C: A linked list D: A variable
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【填空题】________ graphs show data points over time.
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Data Mining：
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Which of the following is the definition of CAS latency？（） A: CAS latency is the ratio between the column access time and the clock cycle time. B: CAS latency is the ratio between the row access time and the clock cycle time. C: CAS latency is the ratio between the column access time and the data burst transfer time. D: CAS latency is the ratio between the row access time and the data burst transfer time.