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Question-answer knowledge base and establishing method thereof, intelligent question-answering method and system

An intelligent question answering and knowledge base technology, applied in the field of information search, can solve the problems of different similarity values, reduce information search efficiency, prolong information search time, etc., achieve the effect of less memory, improve information search efficiency, and save the number of items

Active Publication Date: 2016-08-31
SHANGHAI XIAOI ROBOT TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

Subsequently, when the user inputs the user request information, and calculates the similarity between the user request information and the above-mentioned many semantic expressions one by one, the similarity values ​​of different expressions with the same semantic meaning are different due to the difference in weight, which prolongs the information search time. time, reducing the efficiency of information search

Method used

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  • Question-answer knowledge base and establishing method thereof, intelligent question-answering method and system

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no. 1 example

[0048] In the first embodiment of the present invention, a question-and-answer knowledge base includes a plurality of knowledge points, each knowledge point includes one or more questions, at least some of the questions have semantic expressions, and the semantic expressions include one or more A first-level part of speech, the first-level part of speech includes a plurality of related words, at least part of the first-level part of speech in the semantic expressions of the number of questions also includes semantic fragments, and the semantic fragments include more than one second Class of speech, the second class of speech includes a plurality of related words.

[0049] Specifically, in this embodiment, a semantic segment may not only include parts of speech, but may also include words. The first-level part of speech includes words and semantic fragments; the second-level part of speech can also include words in the semantic fragment.

[0050] For more complex questions in ...

no. 3 example

[0077] The third embodiment of the present invention is an intelligent question-and-answer method, using the question-and-answer knowledge base in the first embodiment or the question-and-answer knowledge base established by the second embodiment, and the knowledge points in the question-and-answer knowledge base also include answers; figure 2 As shown, the method includes:

[0078] Step S201, obtaining user request information;

[0079] Step S202, perform semantic similarity calculation on the user request information and the questions in the question-and-answer knowledge base, and provide the answer corresponding to the question with the highest semantic similarity value to the user.

[0080] Specifically, when performing semantic similarity calculation, the weights of each word in the first-level part of speech and each second-level part of speech in the semantic expression of the question in the question-and-answer knowledge base used are the same.

[0081] Since this em...

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Abstract

The invention brings forward a question-answer knowledge base and an establishing method thereof, an intelligent question-answering method and system. The question-answer knowledge base comprises multiple knowledge points. Each knowledge point comprises one or more questions. At least a number of problems are with semantic expressions. Each semantic expression comprises one or more first-stage word classes. The first-stage word class comprises multiple related words. A part of first-stage word classes in semantic expressions of questions in at least partial number further comprises semantic segments. Each semantic segment comprises more than one second-stage word class including multiple related words. The question-answer knowledge base and the establishing method thereof, the intelligent question-answering method and system have following beneficial effects: time cost for semantic expansion when knowledge engineers write semantic expressions so that information search efficiency of the intelligent question-answering system is improved.

Description

technical field [0001] The invention relates to the technical field of information search, in particular to a question-and-answer knowledge base and its establishment method, an intelligent question-and-answer method and system. Background technique [0002] Among Chinese words, many words are composed of many different words, such as "payment" is composed of "payment" and "payment". Compound words have many synonyms, for example, the synonyms of "payment" include "payment", "payment" and so on. In this case, when knowledge engineers write corresponding expressions for standard questions or extended questions in the knowledge base, due to the consideration of compound words and their synonyms, it is necessary to write multiple semantic expressions composed of different words with the same meaning Expressions, for example: for the standard question "when to pay" in the knowledge base, the expressions written by knowledge engineers are: 1) "when" + "pay", 2) "when" + "pay" + ...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F17/27G06K9/62
CPCG06F16/90332G06F40/284G06F18/22
Inventor 曾永梅李波朱频频
Owner SHANGHAI XIAOI ROBOT TECH CO LTD
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