CN105718447A - Time information extracting method and apparatus, and smart question and answer system - Google Patents
Time information extracting method and apparatus, and smart question and answer system Download PDFInfo
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Abstract
The present invention discloses a time information extracting method and apparatus, and a smart question and answer system. The time information extracting method comprises the steps of extracting Chinese time information from a current text; according to a predetermined conversion rule, converting a Chinese time phrase in the Chinese time information, so as to obtain digital year information, digital month information, and/or digital data information; and according to the digital year information, digital month information, and/or digital data information, calculating digital time information in accordance with a predetermined time format. According to the method, the demand of a user for extracting diversified time information for the smart question and answer system can be met.
Description
Technical field
The present invention relates to the communications field, especially relate to a kind of temporal information extracting method and device, Intelligent Answer System.
Background technology
Traditional Customer Service Center based on telephone contact center, but the development of the Internet, number of users increase and under the impact of the factor such as customer problem multiformity, traditional Customer Service Center can not meet the needs of client gradually.In this case, a lot of large-scale service enterprisees are constantly expanding the intelligent customer service center of more economical and efficient (such as, intelligent online customer service, smart mobile phone application etc.), to reduce cost of labor, strengthen Consumer's Experience.Wherein, the core of intelligent customer service is Intelligent Answer System, and Intelligent Answer System can provide answer brief, accurate for the problem of user's input, can solve the problem that traditional customer service cannot meet user's needs by this way.
Along with Intelligent Answer System is extensively studied in a large number and applies, the correlation technique of Intelligent Answer System and Related product cause the great interest of domestic and international many scientific research institutions and company, have had many products to occur, have been well adapted for the demand in market.But, Chinese Intelligent Answer System causes not mature enough owing to starting late, and this is also relevant with the many factors such as complexity of the syntax and semantics of Chinese certainly.
In customer service processes, the temporal information how extracting user input text is a key issue, for instance, inquire about the telephone expenses of which moon, inquiring about which day weather condition etc., the accuracy of extracting time information is directly connected to the accuracy that Intelligent Answer System furnishes an answer.In Chinese is expressed, the expression way of temporal information has two kinds: one is to use direct temporal expressions, for instance, December in 2014 30 days, November two bimillennium ride on Bus No. 11 etc.；Another kind is that use time word is expressed, for instance, last year, last month, tomorrow etc..Generally, except adopting the temporal information of aforesaid way expression in general content of text, there is also the special time words such as dialect.In the face of so complicated Chinese temporal information expression way, the temporal information extraction scheme of traditional fixed single cannot meet the needs of user.
But, for above-mentioned situation, prior art does not provide a kind of effective temporal information extraction scheme, the diversified demand of temporal information fully to meet user.
Summary of the invention
A kind of temporal information extracting method of offer and device, Intelligent Answer System are provided, with solve that prior art exists in the face of complicated Chinese temporal information expression way, the problem that the temporal information extraction scheme of traditional fixed single cannot meet the needs of user.
In order to achieve the above object, the invention provides a kind of temporal information extracting method, including: from current text, extract Chinese temporal information；According to predetermined transformational rule, the Chinese time phrase in Chinese temporal information is changed, obtain numeral year information, numeral month information and/or numeral number of days information；The digital time information meeting scheduled time form is calculated according to numeral year information, numeral month information and/or numeral number of days information.
Preferably, transformational rule includes: the time numeral of the time difference X+ current year of numeral year information=be pre-configured with, and wherein, time difference X represents the digital difference of the Chinese time in Chinese time phrase and current year；Numeral month information=be pre-configured with month difference Y+ current month month numeral, wherein, represents the digital difference of the Chinese month in Chinese time phrase and current month month difference Y；The number of days numeral of the current number of days of number of days difference Z+ of numeral number of days information=be pre-configured with, wherein, number of days difference Z represents the digital difference of the Chinese number of days in Chinese time phrase and current number of days.
Preferably, according to predetermined transformational rule, before the Chinese time phrase in Chinese temporal information is changed, including: convert the Chinese figure in Chinese temporal information to Arabic numerals；Numeral year information, numeral month information and/or numeral number of days information is extracted respectively, when extracting unsuccessfully, it is determined that need to use transformational rule that Chinese time phrase is changed from Arabic numerals.
Preferably, from current text, extract Chinese temporal information, including: according to predetermined text segmentation rule, current text is split, obtains short text；According to predetermined extracting rule, from short text, extract Chinese temporal information.
Preferably, text segmentation rule includes: according to punctuation mark, user input text is split；Extracting rule includes: extract from short text including at least the text message of at least one word in three words of year, month, day according to the order of year, month, day.
Preferably, the digital time information meeting scheduled time form is calculated according to numeral year information, numeral month information and/or numeral number of days information, including: according to the feature that the number of days of 12 calendar months of each calendar year is different, in order numeral number of days information, numeral month information and/or numeral year information it is updated and combines, obtaining digital time information；Form output digital time information to schedule.
The invention provides a kind of temporal information extraction element, including: the first extraction module, for extracting Chinese temporal information from current text；First modular converter, for according to predetermined transformational rule, the Chinese time phrase in Chinese temporal information being changed, obtains numeral year information, numeral month information and/or numeral number of days information；Computing module, for calculating, according to numeral year information, numeral month information and/or numeral number of days information, the digital time information meeting scheduled time form.
Preferably, transformational rule includes: the time numeral of the time difference X+ current year of numeral year information=be pre-configured with, and wherein, time difference X represents the digital difference of the Chinese time in Chinese time phrase and current year；Numeral month information=be pre-configured with month difference Y+ current month month numeral, wherein, represents the digital difference of the Chinese month in Chinese time phrase and current month month difference Y；The number of days numeral of the current number of days of number of days difference Z+ of numeral number of days information=be pre-configured with, wherein, number of days difference Z represents the digital difference of the Chinese number of days in Chinese time phrase and current number of days.
Preferably, this device also includes: the second modular converter, is used at the first modular converter according to predetermined transformational rule, before the Chinese time phrase in Chinese temporal information is changed, converts the Chinese figure in Chinese temporal information to Arabic numerals；Second extraction module, for extracting numeral year information, numeral month information and/or numeral number of days information from Arabic numerals respectively, when extracting unsuccessfully, it is determined that need to be used transformational rule that Chinese time phrase is changed by the first modular converter.
Preferably, the first extraction module includes: cutting unit, for according to predetermined text segmentation rule, current text being split, obtains short text；Extraction unit, for according to predetermined extracting rule, extracting Chinese temporal information from short text.
Preferably, text segmentation rule includes: according to punctuation mark, user input text is split；Extracting rule includes: extract from short text including at least the text message of at least one word in three words of year, month, day according to the order of year, month, day.
Present invention also offers a kind of Intelligent Answer System, including: above-mentioned temporal information extraction element.
Compared with prior art, temporal information extracting method of the present invention and device, Intelligent Answer System, the Chinese figure relevant with the time and time phrase can be extracted from text, time Chinese figure is converted to temporal information, according to transformational rule set in advance, time phrase is changed, obtain temporal information, and finally output meets the temporal information of scheduled time form, by such mode, it is possible to meet user and Intelligent Answer System is extracted the demand of multiformity temporal information.
Accompanying drawing explanation
Fig. 1 is temporal information extracting method flow chart according to embodiments of the present invention；
Fig. 2 is that the date extracts flow chart according to the preferred embodiment of the invention；
Fig. 3 is date calculation flow chart according to the preferred embodiment of the invention；
Fig. 4 is the structured flowchart of temporal information extraction element according to embodiments of the present invention；
Fig. 5 is the schematic diagram of temporal information extraction element according to the preferred embodiment of the invention；
Fig. 6 is the structured flowchart of Intelligent Answer System according to embodiments of the present invention；And
Fig. 7 is the structural representation of Intelligent Answer System according to the preferred embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtains under the premise not making creative work, broadly fall into the scope of protection of the invention.
For prior art lacks a kind of effective temporal information extraction scheme, the problem of the diversified demand of temporal information fully to meet user, the invention provides and a kind of Chinese temporal information in text can be extracted, and convert the mode of the temporal information output of standard date format or Custom dates form to.
Embodiments provide a kind of temporal information extracting method.Fig. 1 is temporal information extracting method flow chart according to embodiments of the present invention, as it is shown in figure 1, this flow process comprises the following steps (step S102-step S106):
Step S102, extract from current text Chinese temporal information.
In the present embodiment, this step can be accomplished by: first according to predetermined text segmentation rule, current text is split, obtains short text；According still further to predetermined extracting rule, from short text, extract Chinese temporal information.
Wherein, text segmentation rule can adopt such rule: according to punctuation mark, user input text is split；Extracting rule can adopt such rule: extracts from short text including at least the text message of at least one word in three words of year, month, day according to the order of year, month, day.Certainly, text segmentation rule adopted here and extracting rule are only one preferably embodiment, in actual applications, can adopt other text segmentation rule and extracting rule completely.
In actual applications, owing to the expression way of year, month, day is had multiple by Chinese, therefore when the Chinese temporal information in text is extracted, can support the date stamp field of year, month, day is extended (can configure before temporal information extracting method is implemented), such as, can be by the date stamp field that acquiescence uses: year: year, month: the moon, day: day, number, when configuring, can pass through to add extending marking word in year, month, day, realize the interpolation of other date stamp word.
By this step, current text is divided into multiple short text, it is possible to more accurately extract Chinese temporal information, extracts the omission caused to avoid directly being made directly from current text or produce mistake.And, after the date stamp words such as year, month, day are extended, it is possible to can extraction process with the year, month, day similar word of the meaning in text, it is prevented that omit the generation of situation.
Step S104, according to predetermined transformational rule, the Chinese time phrase in Chinese temporal information is changed, obtains numeral year information, numeral month information and/or numeral number of days information.
In the present embodiment, the transformational rule used in this step may is that the time numeral of the time difference X+ current year of numeral year information=be pre-configured with, and wherein, time difference X represents the digital difference of the Chinese time in Chinese time phrase and current year；Numeral month information=be pre-configured with month difference Y+ current month month numeral, wherein, represents the digital difference of the Chinese month in Chinese time phrase and current month month difference Y；The number of days numeral of the current number of days of number of days difference Z+ of numeral number of days information=be pre-configured with, wherein, number of days difference Z represents the digital difference of the Chinese number of days in Chinese time phrase and current number of days.
In actual applications, during for passing through Chinese time word expression date and time information, need the Chinese time phrase in text (possibly even including voice) is changed according to transformational rule (can configure in advance), configuration process for transformational rule, can adopt in such a way: arrange time word with when the year before last, the current moon, when the phase difference of the day before yesterday, i.e. " XX=num ", XX is time word, and num is time word and the distance of current year, month, day.Such as, " last year=-1 " (last year and this year differ-1), " next month=1 " (next month and the current moon differ 1), " day after tomorrow=3 " (day after tomorrow and today differ 3).
It can be seen that in this way, it is possible to Chinese time phrase is converted to exactly and when the day before yesterday, the moon, the numeral that differ day, thus can draw the alphanumeric data that Chinese time phrase is intended by.
Step S106, according to numeral year information, numeral month information and/or numeral number of days information calculate the digital time information meeting scheduled time form.
In the present embodiment, this step can be realized by such mode: first according to the feature that the number of days of 12 calendar months of each calendar year is different, in order numeral number of days information, numeral month information and/or numeral year information it is updated and combines, obtaining digital time information；Digital time information is exported according still further to scheduled time form.Wherein, scheduled time form can be adopted in such a way: yyyymmdd, mmddyyyy, ddmmyyyy, and wherein, yyyy represents year, and mm represents the moon, and dd represents day.
In the present embodiment, before performing step S104, first can also convert the Chinese figure (direct temporal information) in Chinese temporal information to Arabic numerals, numeral year information, numeral month information and/or numeral number of days information is extracted again respectively from Arabic numerals, when extracting unsuccessfully, it is determined that need to use transformational rule that Chinese time phrase is changed.Certainly, this is one preferably embodiment, in actual applications, after performing step S102, directly performs step S104.
In actual applications, when text uses direct temporal information (i.e. above-mentioned Chinese figure) expression time, the corresponding time is needed to be converted to digital form, therefore upon execution between in configuration process before information retrieval, it is configurable to: " X=digtial ", wherein, X is the Chinese expression of numeral, and digtial is concrete numeral.Such as, " one=1 ", " two=2 " etc..
Pass through the present embodiment, can use transformational rule set in advance that time phrase in Chinese temporal information is carried out the operations such as conversion, obtain meeting the temporal information of scheduled time form, by such mode, it is possible to meet user and Intelligent Answer System is extracted the demand of multiformity temporal information.
For ease of understanding the implementation process of the temporal information extracting method that the present embodiment provides, carry out further description below in conjunction with preferred embodiment and Fig. 2, Fig. 3.
In one section of text, it is possible to comprising many words (i.e. time phrase) with time correlation, this step extracts the concrete time, process for follow-up step.Cutting text, by Segmentation of Punctuation text, forms short text, short text is extracted.
Fig. 2 is that the date extracts flow chart according to the preferred embodiment of the invention, as in figure 2 it is shown, this flow process includes:
Step S202, by punctuate meet segmentation input text, obtain short text；
Step S204, judge whether text only comprises in three marker word of year, month, day, if it is, perform step S214, otherwise, perform step S206；
Step S206, judge whether text comprises three marker word of year, month, day, if it is, perform step S214, otherwise, perform step S208；
Step S208, judge whether text comprises year, the moon two marker word, if it is, perform step S214, otherwise, perform step S210；
Step S210, judge whether text comprises year, day two marker word, if it is, perform step S214, otherwise, perform step S212；
Step S212, judge whether text comprises the moon, day two marker word, if it is, perform step S214, otherwise, process ends；
Step S214, judge whether that the order according to year, month, day is by from left to right occurring successively, if it is, perform step S216, otherwise, process ends；
Step S216, extracts the word comprising above-mentioned marker word.
Fig. 3 is date calculation flow chart according to the preferred embodiment of the invention, as it is shown on figure 3, this flow process comprises the following steps:
Step S302, extracts direct temporal information and time phrase, and text carries out once numeral conversion, and the numeral of Chinese form is converted to Arabic numerals, and as one is converted to 1, two are converted to 2 etc..
Step S304, extracts year information from time phrase, namely extracts numeral year information, if being directly digital form, directly obtain the numeral time, if not extracting the corresponding time, extract the time according to time word, through calculating, the time is converted to concrete numeral according to configuration information.
Step S306, extracts month information from time phrase, namely extracts numeral month information, if being directly digital form, directly obtain numeral month, if not extracting corresponding month, month is extracted, according to configuration information through calculating being converted to concrete numeral month according to time word.
Step S308, extracts number of days information from time phrase, namely extracts numeral number of days information, if being directly digital form, directly obtain numeral number of days, if not extracting corresponding number of days, extract number of days according to time word, through calculating, number of days is converted to concrete numeral according to configuration information.
Step S310, date calculates, the year, month, day obtained by above step also needs to be calculated, such as, " yesterday " was said January 1, the year, month, day on date all can change, per diem, in the process of the order once-through operation of the moon, calculate the number of days impact on month, calculate the month impact on the time again, according to the number of days obtained, calculate the change in month, it is thus achieved that final month (MM), and calculate the natural law (dd) that generation is last, according to the month obtained, calculate the change in time, it is thus achieved that the final time (yyyy).
Step S312, output date form, convert yyyy, MM, dd of obtaining after calculating to concrete output format (such as, yyyyMMdd, yyyy-MM), final output date.
Corresponding to above-mentioned temporal information extracting method, present invention also offers a kind of temporal information extraction element, be used for performing above-mentioned temporal information extracting method.
Fig. 4 is the structured flowchart of temporal information extraction element according to embodiments of the present invention, and as shown in Figure 4, this device includes: the first extraction module the 10, first modular converter 20 and computing module 30, wherein:
First extraction module 10, for extracting Chinese temporal information from current text；First modular converter 20, for according to predetermined transformational rule, the Chinese time phrase in Chinese temporal information being changed, obtains numeral year information, numeral month information and/or numeral number of days information；Computing module 30, for calculating, according to numeral year information, numeral month information and/or numeral number of days information, the digital time information meeting scheduled time form.
In the present embodiment, transformational rule may include that the time numeral of the time difference X+ current year of numeral year information=be pre-configured with, and wherein, time difference X represents the digital difference of the Chinese time in Chinese time phrase and current year；Numeral month information=be pre-configured with month difference Y+ current month month numeral, wherein, represents the digital difference of the Chinese month in Chinese time phrase and current month month difference Y；The number of days numeral of the current number of days of number of days difference Z+ of numeral number of days information=be pre-configured with, wherein, number of days difference Z represents the digital difference of the Chinese number of days in Chinese time phrase and current number of days.
Fig. 5 is the schematic diagram of temporal information extraction element according to the preferred embodiment of the invention, as shown in Figure 5, this device can further include: the second modular converter 40, for at the first modular converter 20 according to predetermined transformational rule, before Chinese time phrase in Chinese temporal information is changed, convert the Chinese figure in Chinese temporal information to Arabic numerals；Second extraction module 50, for extracting numeral year information, numeral month information and/or numeral number of days information from Arabic numerals respectively, when extracting unsuccessfully, it is determined that need to be used transformational rule that Chinese time phrase is changed by the first modular converter 20.
In the apparatus, the first extraction module 10 may further include: cutting unit 12, for according to predetermined text segmentation rule, current text being split, obtains short text；Extraction unit 14, for according to predetermined extracting rule, extracting Chinese temporal information from short text.
In the present embodiment, text segmentation rule may include that and according to punctuation mark, user input text split；Extracting rule includes: extract from short text including at least the text message of at least one word in three words of year, month, day according to the order of year, month, day.
Present invention also offers a kind of Intelligent Answer System, be used for performing above-mentioned temporal information extracting method.Fig. 6 is the structured flowchart of Intelligent Answer System according to embodiments of the present invention, and as shown in Figure 6, this Intelligent Answer System includes the temporal information extraction element shown in Fig. 4 or Fig. 5.
Fig. 7 is the structural representation of Intelligent Answer System according to the preferred embodiment of the invention, as it is shown in fig. 7, this Intelligent Answer System specifically includes that operation layer, algorithm layer and data management layer.Operation layer is primarily directed to concrete application and realizes different demands；Algorithm engine is core layer, it is provided that the Treatment Analysis of text, and output result；Data management layer is used to different business datums is processed, the various data that generating algorithm engine needs.Separately, this design can make an algorithm engine support multiple different application for algorithm engine and service application, as intelligence is inquired about, inquired about question and answer etc..
By this intelligent answer, system inputs text (namely a problem) for one, mate through problem pretreatment, case study and problem, find the answer required for problem, wherein, different according to each problem answers, need to use different parameters, such as, it is to be appreciated that place and time during inquiry weather, inquiry bill is it is to be appreciated that concrete month etc..
In sum, the embodiment of the present invention relates generally to extraction and the switch technology of Chinese temporal information, more specifically, it is that the Chinese temporal information in the text of user's input in intelligence system is extracted, convert Chinese format digital to Arabic numerals, and Chinese time phrase is carried out according to semanteme the extraction of temporal information, the temporal information of last outputting standard date or self-defining date format.
The above is the preferred embodiment of the present invention; it should be pointed out that, for the person of ordinary skill of the art, under the premise without departing from principle of the present invention; can also making some improvements and modifications, these improvements and modifications also should be considered to be encompassed within protection scope of the present invention.
Claims (12)
1. a temporal information extracting method, it is characterised in that including:
Chinese temporal information is extracted from current text；
According to predetermined transformational rule, the Chinese time phrase in Chinese temporal information is changed, obtain numeral year information, numeral month information and/or numeral number of days information；
The digital time information meeting scheduled time form is calculated according to described numeral year information, described numeral month information and/or described numeral number of days information.
2. method according to claim 1, it is characterised in that described transformational rule includes:
The time numeral of the time difference X+ current year of described numeral year information=be pre-configured with, wherein, described time difference X represents the digital difference in the Chinese time in described Chinese time phrase and described current year；
Described numeral month information=be pre-configured with month difference Y+ current month month numeral, wherein, represent the digital difference in the Chinese month in described Chinese time phrase and described current month described month difference Y；
The number of days numeral of the current number of days of number of days difference Z+ of described numeral number of days information=be pre-configured with, wherein, described number of days difference Z represents the digital difference of the Chinese number of days in described Chinese time phrase and described current number of days.
3. method according to claim 1, it is characterised in that according to predetermined transformational rule, before the Chinese time phrase in Chinese temporal information is changed, including:
Convert the Chinese figure in described Chinese temporal information to Arabic numerals；
Numeral year information, numeral month information and/or numeral number of days information is extracted respectively, when extracting unsuccessfully, it is determined that need to use described transformational rule that described Chinese time phrase is changed from described Arabic numerals.
4. method according to claim 1, it is characterised in that extract Chinese temporal information from current text, including:
According to predetermined text segmentation rule, described current text is split, obtains short text；
According to predetermined extracting rule, from described short text, extract described Chinese temporal information.
5. method according to claim 4, it is characterised in that
Described text segmentation rule includes: according to punctuation mark, described user input text is split；
Described extracting rule includes: extract from described short text including at least the text message of at least one word in three words of year, month, day according to the order of year, month, day.
6. method according to any one of claim 1 to 5, it is characterised in that calculate the digital time information meeting scheduled time form according to described numeral year information, described numeral month information and/or described numeral number of days information, including:
According to the feature that the number of days of 12 calendar months of each calendar year is different, in order described numeral number of days information, described numeral month information and/or described numeral year information it is updated and combines, obtaining described digital time information；
Described digital time information is exported according to described scheduled time form.
7. a temporal information extraction element, it is characterised in that including:
First extraction module, for extracting Chinese temporal information from current text；
First modular converter, for according to predetermined transformational rule, the Chinese time phrase in Chinese temporal information being changed, obtains numeral year information, numeral month information and/or numeral number of days information；
Computing module, for calculating, according to described numeral year information, described numeral month information and/or described numeral number of days information, the digital time information meeting scheduled time form.
8. device according to claim 7, it is characterised in that described transformational rule includes:
The time numeral of the time difference X+ current year of described numeral year information=be pre-configured with, wherein, described time difference X represents the digital difference in the Chinese time in described Chinese time phrase and described current year；
Described numeral month information=be pre-configured with month difference Y+ current month month numeral, wherein, represent the digital difference in the Chinese month in described Chinese time phrase and described current month described month difference Y；
The number of days numeral of the current number of days of number of days difference Z+ of described numeral number of days information=be pre-configured with, wherein, described number of days difference Z represents the digital difference of the Chinese number of days in described Chinese time phrase and described current number of days.
9. device according to claim 7, it is characterised in that also include:
Second modular converter, is used at described first modular converter according to predetermined transformational rule, before the Chinese time phrase in Chinese temporal information is changed, converts the Chinese figure in described Chinese temporal information to Arabic numerals；
Second extraction module, for extracting numeral year information, numeral month information and/or numeral number of days information from described Arabic numerals respectively, when extracting unsuccessfully, it is determined that need to be used described transformational rule that described Chinese time phrase is changed by described first modular converter.
10. the device according to any one of claim 7 to 9, it is characterised in that described first extraction module includes:
Cutting unit, for according to predetermined text segmentation rule, splitting described current text, obtain short text；
Extraction unit, for according to predetermined extracting rule, extracting described Chinese temporal information from described short text.
11. device according to claim 10, it is characterised in that
Described text segmentation rule includes: according to punctuation mark, described user input text is split；
Described extracting rule includes: extract from described short text including at least the text message of at least one word in three words of year, month, day according to the order of year, month, day.
12. an Intelligent Answer System, it is characterised in that including: the temporal information extraction element according to any one of claim 7 to 11.
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