Method and apparatus for data search, system, device and computer readable storage medium

1. A data search method, comprising:

determining semantic-understanding information corresponding to a received search term by subjecting the search term to semantic understanding;

analyzing the semantic-understanding information to obtain timeliness requirement information of the search term;

determining an acquisition mode of resource result corresponding to the search term based on the timeliness requirement information of the search term; and

obtaining the resource result corresponding to the search term by using the determined acquisition mode,

wherein the acquisition mode of resource result comprises a mode of retrieving an existing resource result from a preset cache and a mode of triggering penetration of the preset cache to obtain an updated resource result from a back end,

wherein the step of analyzing the semantic-understanding information to obtain the timeliness requirement information of the search term comprises:

calculating the timeliness requirement information of the search term according to an information item in the semantic-understanding information and a preset weight coefficient corresponding to the information item in the semantic-understanding information, wherein the semantic-understanding information comprises at least one of the following information items: literal meaning, semantic integrity and probability of burst keyword, and

wherein the step of determining the acquisition mode of resource result corresponding to the search term based on the timeliness requirement information of the search term comprises:

determining, when a calculated value of the timeliness requirement information of the search term is greater than or equal to a preset first score, that the acquisition mode of resource result corresponding to the search term is the mode of triggering penetration of the preset cache to obtain the updated resource result from the back end, and

determining, when the calculated value of the timeliness requirement information of the search term is less than the preset first score, that the acquisition mode of resource result corresponding to the search term is the mode of retrieving the existing resource result from the preset cache.

2. The method of claim 1 , wherein the step of determining the acquisition mode of resource result corresponding to the search term based on the timeliness requirement information of the search term comprises:

determining system information corresponding to the search term;

comprehensively analyzing timeliness and machine cost of the search term according to the timeliness requirement information and the system information of the search term to obtain a comprehensive analysis result of the search term; and

determining the acquisition mode of resource result corresponding to the search term according to the comprehensive analysis result of the search term.

3. The method of claim 2 , wherein the step of comprehensively analyzing the timeliness and the machine cost of the search term according to the timeliness requirement information and the system information of the search term to obtain the comprehensive analysis result of the search term comprises:

calculating the timeliness requirement information of the search term according to an information item in the semantic-understanding information and a preset weight coefficient corresponding to the information item in the semantic-understanding information;

calculating machine cost information of the search term according to an information item in the system information and a preset weight coefficient corresponding to the information item in the system information; and

obtaining the comprehensive analysis result of the search term according to a combination of the timeliness requirement information and the machine cost information of the search term.

4. The method of claim 1 , after calculating the timeliness requirement information of the search term, further comprising:

determining retrieval-related information of the search term comprising at least one of a search frequency of the search term and a total number of recalled results corresponding to the search term;

calculating timeliness-related information of the search term according to the retrieval-related information and a preset weight coefficient corresponding to the retrieval-related information; and

taking the obtained timeliness requirement information and the timeliness-related information of the search term as the timeliness requirement information of the search term.

5. The method of claim 2 , before comprehensively analyzing the timeliness and the machine cost of the search term according to the timeliness requirement information and the system information of the search term, further comprising:

preprocessing the timeliness information and the system information, wherein a preprocess comprises at least one of data normalization and feature standardization.

6. The method of claim 3 , before comprehensively analyzing the timeliness and the machine cost of the search term according to the timeliness requirement information and the system information of the search term, further comprising:

preprocessing the timeliness information and the system information, wherein a preprocess comprises at least one of data normalization and feature standardization.

7. The method of claim 1 , wherein

the preset cache is a cache corresponding to a predetermined back-end process comprising at least one of the following processes: recall-layer process, sorting-layer process, fusion-layer process and access-layer process; and

the preset cache comprises at least one of the following caches: a fusion-layer cache and a sorting-layer cache.

8. The method of claim 7 , wherein

the information item in the system information comprises at least one of system capacity, system response time, system response speed, system load, and total number of resource requests; and

the different back-end processes correspond to different information items in the semantic-understanding information, and also correspond to different information items in the system information, and the weight coefficient corresponding to an information item in the system information varies when the search term is searched for at different times.

9. The method of claim 2 , wherein

the preset cache is a cache corresponding to a predetermined back-end process comprising at least one of the following processes: recall-layer process, sorting-layer process, fusion-layer process and access-layer process; and

the preset cache comprises at least one of the following caches: a fusion-layer cache and a sorting-layer cache.

10. The method of claim 9 , wherein

the information item in the system information comprises at least one of system capacity, system response time, system response speed, system load, and total number of resource requests; and

the different back-end processes correspond to different information items in the semantic-understanding information, and also correspond to different information items in the system information, and the weight coefficient corresponding to an information item in the system information varies when the search term is searched for at different times.

11. The method of claim 3 , wherein

the preset cache is a cache corresponding to a predetermined back-end process comprising at least one of the following processes: recall-layer process, sorting-layer process, fusion-layer process and access-layer process; and

the preset cache comprises at least one of the following caches: a fusion-layer cache and a sorting-layer cache.

12. The method of claim 11 , wherein

the information item in the system information comprises at least one of system capacity, system response time, system response speed, system load, and total number of resource requests; and

the different back-end processes correspond to different information items in the semantic-understanding information, and also correspond to different information items in the system information, and the weight coefficient corresponding to an information item in the system information varies when the search term is searched for at different times.

13. A data search apparatus, comprising:

an information acquisition module configured to determine semantic-understanding information corresponding to a received search term by subjecting the search term to semantic understanding;

an information analysis module configured to analyze the semantic-understanding information to obtain timeliness requirement information of the search term;

a mode determining module configured to determine an acquisition mode of resource result corresponding to the search term based on the timeliness requirement information of the search term; and

a result obtaining module configured to obtain the resource result corresponding to the search term by using the determined acquisition mode,

wherein the acquisition mode of resource result comprises a mode of retrieving an existing resource result from a preset cache and a mode of triggering penetration of the preset cache to obtain an updated resource result from a back end,

wherein the information analysis module is configured to:

calculate the timeliness requirement information of the search term according to an information item in the semantic-understanding information and a preset weight coefficient corresponding to the information item in the semantic-understanding information, wherein the semantic-understanding information comprises at least one of the following information items: literal meaning, semantic integrity and probability of burst keyword, and

wherein the mode determining module is configured to:

determine, when a calculated value of the timeliness requirement information of the search term is greater than or equal to a preset first score, that the acquisition mode of resource result corresponding to the search term is the mode of triggering penetration of the preset cache to obtain the updated resource result from the back end, and

determine, when the calculated value of the timeliness requirement information of the search term is less than the preset first score, that the acquisition mode of resource result corresponding to the search term is the mode of retrieving the existing resource result from the preset cache.

14. An information service system, comprising:

an input module configured to receive an input search term; and

a processing module configured to perform the data search method of claim 1 on the received search term, and obtain an acquisition mode of resource result corresponding to the search term and the resource result.

15. An electronic device, comprising:

one or more processors;

a memory having one or more programs stored thereon, wherein the one or more processors perform the data search method of claim 1 when the one or more programs are executed by the one or more processors; and

one or more I/O interfaces connected between the processor and the memory and configured to enable information interaction between the processor and the memory.

16. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the data search method of claim 1 is implemented when the computer program is executed by a processor.