METHOD, ELECRONIC DEVICE AND COMPUTER PROGRAM PRODUCT FOR SAMPLE SELECTION

• US 20200133954A1
• Filed: 10/17/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Active Grant

• Current Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Original Assignee: Emc IP Holding Company LLC (Dell Technologies Inc.)
• Inventors: Xu, Maoyang, Ma, Qiang, Zhang, Sheng, Chen, Peng, Wang, Hua, Chen, Rui
• Granted Patent: US 12,032,579 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 16/1734 Details of monitoring file system events, e.g. by the use of hooks, filter drivers, logs
• CPC Class Codes: G06F 16/24542 Plan optimisation
• CPC Class Codes: G06F 16/24568 Data stream processing; Continuous queries
• CPC Class Codes: G06F 16/24578 using ranking
• CPC Class Codes: G06F 16/248 Presentation of query results
• CPC Class Codes: G06F 16/951 Indexing; Web crawling techniques
• CPC Class Codes: G06F 16/9535 Search customisation based on user profiles and personalisation
• CPC Class Codes: G06F 16/9536 Search customisation based on social or collaborative filtering

Abstract

Techniques perform sample selection. Such techniques involve: in response to receiving a query time range for samples input by a user, obtaining a plurality of groups of samples from a sample set, each group of samples being collected within a corresponding time range. Such techniques further involve: determining a relationship between the query time range and time ranges corresponding to the plurality of groups of samples. Such techniques further involve: determining, based on the determined relation and from the plurality of groups of samples, a group of samples with a corresponding time range matching the query time range. Accordingly, these sets of samples may be presented accurately and efficiently to the user in a selective manner.

Claims

1. A method for sample selection, comprising:

in response to receiving a query time range for samples input by a user, obtaining a plurality of groups of samples from a sample set, each group of samples being collected within a corresponding time range;

determining a relationship between the query time range and a plurality of time ranges corresponding to the plurality of groups of samples; and

determining, based on the determined relationship and from the plurality of groups of samples, a group of samples with a corresponding time range matching the query time range.

2. The method according to claim 1, wherein determining the group of samples comprises:

determining at least one group of samples from the plurality of groups of samples, time ranges corresponding to the at least one group of samples covering the query time range;

calculating, in each group of the at least one group of samples, the number of samples within the query time range; and

determining the group of samples from the at least one group of samples, the number of samples within the query time range in the determined group of samples being closest to a preset number.

3. The method according to claim 1, wherein determining the group of samples comprises:

determining at least one group of samples from the plurality of groups of samples, time ranges corresponding to the at least one group of samples partially overlapping the query time range;

calculating, in each group of the at least one group of samples, a ratio of a first time range partially overlapping the query time range to the query time range; and

determining the group of samples from the at least one group of samples, the ratio corresponding to the determined group of samples exceeding a predetermined threshold.

4. The method according to claim 1, further comprising providing the user with at least one of the following:

the group of samples;

a sampling interval of the group of samples; and

a time range of the group of samples.

5. The method according to claim 1, wherein determining the relationship between the query time range and the plurality of time ranges corresponding to the plurality of groups of samples comprises:

comparing the query time range with each of the plurality of time ranges according to at least one of the following groups of information;

a start time and a length; and

a start time and an end time.

6. An electronic device, comprising:

at least one processing unit; and

at least one memory, which is coupled to the at least one processing unit and stores machine executable instructions, the instructions, when executed by the at least one processing unit, causing the electronic device to perform acts, comprising;

in response to receiving a query time range for samples input by a user, obtaining a plurality of groups of samples from a sample set, each group of samples being collected within a corresponding time range;

determining a relationship between the query time range and a plurality of time ranges corresponding to the plurality of groups of samples; and

determining, based on the determined relationship and from the plurality of groups of samples, a group of samples with a corresponding time range matching the query time range.

7. The device according to claim 6, wherein determining the group of samples comprises:

determining at least one group of samples from the plurality of groups of samples, time ranges corresponding to the at least one group of samples covering the query time range;

calculating, in each group of the at least one group of samples, the number of samples within the query time range; and

determining the group of samples from the at least one group of samples, the number of samples within the query time range in the determined group of samples being closest to a preset number.

8. The device according to claim 6, wherein determining the group of samples comprises:

determining at least one group of samples from the plurality of groups of samples, time ranges corresponding to the at least one group of samples partially overlapping the query time range;

calculating, in each group of the at least one group of samples, a ratio of a first time range partially overlapping the query time range to the query time range; and

determining a group of samples from the at least one group of samples, the ratio corresponding to the determined group of samples exceeding a predetermined threshold.

9. The device according to claim 6, wherein the instructions, when executed by the at least one processing unit, further cause the electronic device to:

provide the user with at least one of the following;

the group of samples;

a sampling interval of the group of samples; and

a time range of the group of samples.

10. The device according to claim 6, wherein determining the relationship between the query time range and plurality of the time ranges corresponding to the plurality of groups of samples comprises:

comparing the query time range with each of the plurality of time ranges according to at least one of the following groups of information;

a start time and a length; and

a start time and an end time.

11. A computer program product having a non-transitory computer readable medium which stores a set of instructions to perform sample selection;

the set of instructions, when carried out by computerized circuitry, causing the computerized circuitry to perform a method of;

in response to receiving a query time range for samples input by a user, obtaining a plurality of groups of samples from a sample set, each group of samples being collected within a corresponding time range;

determining a relationship between the query time range and a plurality of time ranges corresponding to the plurality of groups of samples; and

determining, based on the determined relationship and from the plurality of groups of samples, a group of samples with a corresponding time range matching the query time range.