WO2020001616A1 - 本体构建方法及装置 - Google Patents
本体构建方法及装置 Download PDFInfo
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- WO2020001616A1 WO2020001616A1 PCT/CN2019/093683 CN2019093683W WO2020001616A1 WO 2020001616 A1 WO2020001616 A1 WO 2020001616A1 CN 2019093683 W CN2019093683 W CN 2019093683W WO 2020001616 A1 WO2020001616 A1 WO 2020001616A1
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
- G06F16/215—Improving data quality; Data cleansing, e.g. de-duplication, removing invalid entries or correcting typographical errors
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2455—Query execution
Definitions
- the present disclosure relates to the field of computer technology, and in particular, to a method and device for constructing an ontology.
- Ontology is a description of entities (such as people or things) in the real world, events involved in the entities, and relationships between entities. People can query the objects described by the ontology in the ontology.
- each object described by the ontology has a variety of attributes, such as the attributes of a person: name, gender, and ID number.
- the ontology can describe the object by recording the attribute information of the object.
- a computer device when constructing an ontology, a computer device needs to instantiate a specified data set, thereby obtaining instance attribute information of each object (such as an entity, event, or relationship), and performing instance attribute information of each object. storage.
- the present disclosure provides a method and device for constructing an ontology.
- the technical solution is as follows:
- a method for constructing an ontology includes:
- the instance attribute information of the plurality of objects is stored to construct the ontology.
- the multiple objects include entities, and the time-dimensional attribute information of the entities includes one or more of the following:
- a surviving identification used to record whether the entity is dead
- the persistence event identifier of the entity and the persistence event identifier is used to record a trigger event when the entity's time-dimensional attribute information changes.
- storing the instance attribute information of the multiple objects includes:
- the instance attribute information of the i-th entity in the plurality of objects it is detected whether the historical instance attribute information of the i-th entity is stored locally, 1 ⁇ i ⁇ k, where k is the number of entities in the plurality of objects. number;
- the instance attribute information of the i-th entity is used to cover its historical instance attribute information.
- the multiple objects include relationships between entities, and the time-dimensional attribute information of the relationships includes one or more of the following:
- a version identifier of the relationship wherein each of the relationships has at least one version identifier, and each of the version identifiers uniquely corresponds to a time period maintained by the relationship;
- the source event identifier of the relationship and the source event identifier is used to record an event related to each version identifier of the relationship.
- storing the instance attribute information of the multiple objects includes:
- the cleanable historical instance attribute information of the hth relationship stored locally is moved to a peripheral for recycling So that the number of remaining historical instance attribute information of the h-th relationship is less than or equal to the preset number threshold; wherein the historical instance attribute information of the h-th relationship includes: the h-th Cleanable historical instance attribute information of the relationship and remaining historical instance attribute information of the h-th relationship;
- the relationship version in the remaining historical instance attribute information is a remaining relationship version
- the relationship version in the cleanable historical instance attribute information is a cleanable relationship version
- the time period corresponding to the remaining relationship version is after the time period corresponding to the cleanable relationship version.
- the method further includes: obtaining an ontology template and an instantiation rule, wherein the ontology template is used to record attribute information of multiple object groups, each Each object group includes objects belonging to the same type, and the multiple object groups are related in a hierarchical form;
- the instantiating the specified data set includes: performing the instantiating process on the data set according to the ontology template and the instantiation rule;
- the instance attribute information of each of the plurality of objects is information extracted in the data set based on the attribute information recorded in the ontology template.
- the method further includes:
- the data to be processed is instantiated according to the current ontology template and the current instantiation rule to obtain multiple update objects Instance attribute information, wherein the data to be processed is data to be instantiated indicated by the current instantiation rule in the current data set;
- the stored instance attribute information is overwritten by the instance attribute information of the multiple update objects to update the ontology.
- the method further includes:
- the target instance attribute information exists in the ontology
- the target instance attribute information is acquired.
- the acquiring target query conditions include:
- the initial query condition includes the time condition, determining that the initial query condition is the target query condition;
- a preset time condition is added to the initial query condition to obtain the target query condition.
- the method further includes:
- the time condition is used to record a specified time period, and the target data is data generated in the data set within the specified time period.
- an ontology construction device in a second aspect, includes:
- a first processing module configured to instantiate a specified data set, and obtain instance attribute information of each of a plurality of objects
- a storage module configured to store instance attribute information of the plurality of objects according to a specified storage structure to construct the ontology
- the instance attribute information of each object includes: time-dimensional attribute information of each object in a time dimension.
- the multiple objects include entities, and the time-dimensional attribute information of the entities includes one or more of the following:
- a surviving identification used to record whether the entity is dead
- the persistence event identifier of the entity and the persistence event identifier is used to record a trigger event when the entity's time-dimensional attribute information changes.
- the storage module is used for:
- attribute information of the i-th entity in the plurality of objects it is detected whether historical instance attribute information of the i-th entity is stored locally, 1 ⁇ i ⁇ k, where k is the number of entities in the plurality of objects. number;
- the instance attribute information of the i-th entity is used to cover its historical instance attribute information.
- the multiple objects include relationships between entities, and the time-dimensional attribute information of the relationships includes one or more of the following:
- a version identifier of the relationship wherein each of the relationships has at least one version identifier, and each of the version identifiers uniquely corresponds to a time period maintained by the relationship;
- the source event identifier of the relationship and the source event identifier is used to record an event related to each version identifier of the relationship.
- the storage module is used for:
- the cleanable historical instance attribute information of the hth relationship stored locally is moved to a peripheral for recycling So that the number of remaining historical instance attribute information of the h-th relationship is less than or equal to the preset number threshold; wherein the historical instance attribute information of the h-th relationship includes: the h-th Cleanable historical instance attribute information of the relationship and remaining historical instance attribute information of the h-th relationship;
- the relationship version in the remaining historical instance attribute information is a remaining relationship version
- the relationship version in the cleanable historical instance attribute information is a cleanable relationship version
- the time period corresponding to the remaining relationship version is after the time period corresponding to the cleanable relationship version.
- the ontology construction device further includes:
- a first obtaining module is used to obtain an ontology template and an instantiation rule, wherein the ontology template is used to record attribute information of multiple object groups, and each object group includes objects of the same type, and the multiple object groups are based on Hierarchical formal association
- the first processing module is configured to perform the instantiation processing on the data set according to the ontology template and the instantiation rule;
- the instance attribute information of each of the plurality of objects is information extracted in the data set based on the attribute information recorded in the ontology template.
- the ontology construction device further includes:
- a detection module configured to detect whether the ontology template, the instantiation rule, and the data set are updated respectively
- a second processing module configured to instantiate the data to be processed according to the current ontology template and the current instantiation rule when one or more of the ontology template, the instantiation rule, and the data set are updated To obtain instance attribute information of multiple update objects, where the data to be processed is data to be instantiated indicated by the current instantiation rule in the current data set;
- An overlay module is configured to overwrite the stored instance attribute information of the multiple update objects to update the ontology.
- the ontology construction device further includes:
- a second obtaining module configured to obtain a target query condition, where the target query condition includes: a time condition;
- a first query module configured to query, according to the target query condition, whether there is target instance attribute information in the ontology that meets the target query condition;
- a third obtaining module is configured to obtain the target instance attribute information when the target instance attribute information exists in the ontology.
- the second obtaining module is configured to:
- the initial query condition includes the time condition, determining that the initial query condition is the target query condition;
- a preset time condition is added to the initial query condition to obtain the target query condition.
- the ontology construction device further includes:
- a second query module configured to query whether the target instance attribute information exists in the peripheral recycle bin when the ontology does not include the target instance attribute information
- the third obtaining module is further configured to perform the step of obtaining the target instance attribute information when the target instance attribute information exists in the peripheral recycle bin;
- a third processing module configured to instantiate the target data in the data set according to the current ontology template and the current instantiation rule when the target instance attribute information does not exist in the peripheral recycle bin, To obtain the target instance attribute information;
- the time condition is used to record a specified time period, and the target data is data generated in the data set within the specified time period.
- a computer device including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the bus; the memory is used to store a computer program; the processor For executing a program stored in a memory to implement the method described in the first aspect.
- a computer-readable storage medium stores a computer program, and the computer program implements the method according to the first aspect when executed by a processor.
- a computer program product containing instructions is provided, and when the computer program product is run on a computer, the computer is caused to execute the method described in the first aspect.
- FIG. 1 is a method flowchart of an ontology construction method according to an embodiment of the present disclosure
- FIG. 3 is a schematic diagram of an ontology template provided by an embodiment of the present disclosure.
- FIG. 4 is a schematic diagram of another ontology template provided by an embodiment of the present disclosure.
- FIG. 5 is a flowchart of a method for obtaining an ontology template according to an embodiment of the present disclosure
- FIG. 6 is a schematic structural diagram of an ontology construction device according to an embodiment of the present disclosure.
- FIG. 7 is a schematic structural diagram of another ontology construction device according to an embodiment of the present disclosure.
- Ontology is a description of entities in the real world, the events involved in the entities, and the relationships between entities.
- the entities, events, and relationships are the objects that the ontology describes.
- an entity can be a student, teacher, police, car, etc.
- the entity-related events can be: entity-related events such as student attending a class, police arresting a thief, and the relationship between entities can be: teachers and students between students and teachers Relationship, etc.
- Each object (such as an entity, event, or relationship) described by an ontology has multiple attributes.
- the attributes of a student include: name, gender, grade, ID number, etc.
- the attributes of a car include: nameplate and number of the car.
- the ontology can describe the object by recording the instance attribute information of the object.
- the embodiment of the present disclosure provides a method for constructing an ontology.
- the method can be applied to a computer device.
- the computer device may include a device or a device cluster composed of multiple devices, which is not limited in the embodiments of the present disclosure.
- the computer device may include: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the bus; the computer device may communicate with other external devices through the communication interface; the memory It can be used to store computer programs; the processor is used to execute the programs stored on the memory to implement the ontology construction method.
- FIG. 1 is a method flowchart of an ontology construction method according to an embodiment of the present disclosure. As shown in FIG. 1, the ontology construction method may include:
- Step 101 Instantiate a specified data set to obtain instance attribute information of each object in a plurality of objects.
- Step 102 Store instance attribute information of the plurality of objects according to a specified storage structure to construct the ontology.
- the instance attribute information of each object includes: time-dimensional attribute information of each object in a time dimension.
- the instance attribute information obtained in the embodiment of the present disclosure includes time-dimensional attribute information of the time dimension
- the ontology constructed based on the instance attribute information can describe the relationship between the object and time. In this way, the object described by the ontology Being able to unify with the objects in the real world improves the accuracy of the ontology.
- FIG. 2 is a method flowchart of another ontology construction method according to an embodiment of the present disclosure. As shown in FIG. 2, the ontology construction method may include:
- Step 201 Obtain an ontology template and instantiation rules.
- the ontology template may be used to record attributes of multiple object groups, and the attributes of each object group may include time-dimensional attributes in a time dimension.
- Each object group includes objects belonging to the same type, such as an object group composed of students belonging to the type of students, an object group composed of objects belonging to the doctor type, etc., an object group composed of objects belonging to the kinship type, and objects belonging to public welfare events Group of objects.
- the attributes of the next-level object group include the attributes of the previous-level object group, that is, the next-level object.
- a group has the attributes of a group of objects one level up.
- the object group on the upper layer is a person, and the object group on the lower layer may be a student, a police officer, or the like.
- the lower-level object group can be referred to as a child object group of the upper-level object group
- the upper-level object group can be referred to as the parent object group of the lower-level object group
- the lower-level object group inherits the previous-level object group.
- the top-level object group can be called the ancestor object group of other layer object groups.
- the ontology template can record the attribute information of each object group in multiple implementable ways, and the embodiments of the present disclosure will explain two of the implementable ways.
- the ontology template records: attribute information corresponding to each object group, and the attribute information corresponding to each object group is attribute information of each object group.
- FIG. 3 is a schematic diagram of an ontology template provided by an embodiment of the present disclosure.
- the plurality of object groups may include: a top-level object group, a person object group, a student object group, a police object group, and a car object group.
- the person object group and the vehicle object group are both associated with the top object group and are both located one level below the top object group.
- the student object group and the police object group are both associated with the person object group and both are located one level below the person object group.
- the top-level object group is located at the top level of these object groups.
- the student object group, police object group, and car object group are all at the bottom level of these object groups, that is, the object group not associated with the next-level object group is the bottom-level object group.
- the attribute information corresponding to the top-level object group includes: an identification code, a birth time, and a name.
- Each object in the real world is a type of the top-level object group, such as a person object group and a car object group, respectively Two types in an object group.
- the attribute information corresponding to the human object group includes: an ID number (the identification code in the attribute information corresponding to the top-level object group is used to describe the same attribute), the date of birth (the birth time in the attribute information corresponding to the top-level object group is used for Describe the same attribute), name (same name in attribute information corresponding to the top-level object group), gender (each attribute information corresponding to the top-level object group is used to describe different attributes), level (corresponding to the top-level object group) Each attribute information is used to describe different attributes).
- the attribute information corresponding to the vehicle object group includes: the license plate number (the identification code in the attribute information corresponding to the top-level object group is used to describe the same attribute), the production date (the birth time in the attribute information corresponding to the top-level object group is used to describe The same attribute), name (the name in the attribute information corresponding to the top-level object group is the same), mobile (each attribute information corresponding to the top-level object group is used to describe different attributes), brand (each corresponding to the top-level object group) Each attribute information is used to describe different attributes).
- the human object group may include two types: a student object group and a police object group.
- the attribute information corresponding to the student object group may include: an ID number (the ID number in the attribute information corresponding to the human object group is the same), a date of birth (the date of birth in the attribute information corresponding to the human object group is the same), First name (same name in attribute information corresponding to person object group), gender (same gender in attribute information corresponding to person object group), grade (level in attribute information corresponding to person object group) is used to describe the same Attributes), school name (each attribute information corresponding to a person object group is used to describe a different attribute).
- the attribute information corresponding to the police object group may include: ID number (identical number in the attribute information corresponding to the person object group), date of birth (same birth date in the attribute information corresponding to the person object group), and name ( The name in the attribute information corresponding to the person object group is the same), the gender (the same gender in the attribute information corresponding to the person object group), the job title (the level in the attribute information corresponding to the person object group is used to describe the same attribute), The name of the police station (each attribute information corresponding to the person object group is used to describe different attributes).
- the ontology template records: attribute information corresponding to each object group.
- the attribute information of the top-level object group in the multiple object groups includes: the attribute information corresponding to the top-level object group; in each two-level object group, the types of the attribute information of the upper-level object group include: direct inheritance classes and indirect inheritance classes; lower-level inheritance classes; The types of attribute information corresponding to an object group include: implementation classes.
- the attribute information of the lower-level object group includes attribute information of the directly inherited class corresponding to the upper-level object group, and attribute information corresponding to the lower-level object group.
- the attribute information of the indirect inheritance class corresponding to the upper-level object group is different from the attribute information of the implementation class corresponding to the lower-level object group and is used to describe the same attribute; the attribute information of the direct-inherited class corresponding to the upper-level object group corresponds to the lower-level object group.
- the property information of the implementation class is used to describe different properties.
- FIG. 4 is a schematic diagram of another ontology template provided by an embodiment of the present disclosure.
- the attribute information corresponding to an object group is the same as attribute information corresponding to an upper-level object group associated with it, the attribute information corresponding to the lower-level object group needs to delete the certain attribute information, so that an ontology template as shown in FIG. 4 can be obtained.
- the attribute information of the person object group includes: ID number, date of birth, gender, and level, and because the attribute information corresponding to the top-level object group includes a name, the attribute information corresponding to the person object group does not include: a name.
- the attribute information of the car object group includes: the license plate number, the production date, the motor, and the brand, and because the attribute information corresponding to the top-level object group includes the name, the attribute information corresponding to the car object group does not include: the name.
- the attribute information of the student object group may include: grade, school name, and because the attribute information corresponding to the human object group includes ID card number, date of birth, name, and gender, the attribute information corresponding to the student object group does not include: ID number , Date of birth, name, gender.
- the attribute information of the police object group may include: the job title, the name of the police station where it belongs, and because the attribute information corresponding to the person object group includes the ID number, date of birth, name, and gender, the attribute information corresponding to the police object group does not include: identity ID number, date of birth, name, gender.
- the ontology template can record the attribute information of each object group by recording the attribute information corresponding to each object group, and the attribute information of each non-top-level object group can be partially omitted, which can reduce the ontology template
- the attribute information recorded in the simplifies the ontology template, which can save more space for storing the ontology template, and can effectively reduce the storage cost.
- the types of attribute information corresponding to the lower-level object group include: implementation classes and custom classes
- the attribute information corresponding to the upper-level object group includes: the same attributes described in the attribute information of each implementation class corresponding to the lower-level object group Attribute information, and does not include the same attribute information described in the attribute information of each custom class corresponding to the lower-level object group.
- the ID number and the date of birth in the attribute information corresponding to the person object group are attribute information of the implementation class
- the gender and level are attribute information of the custom class.
- the attribute information corresponding to the top-level object group includes: the same attribute information (identification code) as the attribute described by the ID number, and the same attribute (birth time) as the attribute described on the date of birth, excluding the gender and level Describes attributes with the same attribute information.
- a top-level object group a person object group, a car object group, a student object group, and a police object group.
- multiple object groups may also be It includes other object groups, such as a teacher object group, a building object group, a kinship object group, and a teacher-student relationship object group, which are not limited in the embodiments of the present disclosure.
- the attribute information of each object may also include information not mentioned in the above embodiments, such as the instance attribute information of a person may also include: ethnicity; the attribute information of the relationship may also include: the type of relationship (such as kinship, teacher-student relationship And other types of relationships), which are not described in the embodiment of the present disclosure.
- the computer device may obtain the ontology template in multiple ways in step 201, and the embodiment of the present disclosure will take the way shown in FIG. 5 as an example.
- FIG. 5 is a flowchart of a method for obtaining an ontology template according to an embodiment of the present disclosure. As shown in FIG. 5, the process of obtaining the ontology template may include:
- Step 2011 Determine attribute information of each object group in the multiple object groups.
- the ontology construction method may be applied to computer equipment.
- the computer equipment may use one or more of historical data and expert experience values (such as historical data, expert experience values, or historical data). And expert experience) to determine the attribute information of each object group.
- expert experience values such as historical data, expert experience values, or historical data.
- step 2012 it is detected whether the i-th object group in the multiple object groups meets the pull-up condition and the sinking condition.
- the multiple object groups need to be related in a hierarchical form, and then, it is checked whether the i-th object group in the multiple object groups meets the pull-up condition and the sinking condition.
- the pull-up condition includes: the attribute described in the attribute information of each lower-level object group associated with the i-th object group includes the first attribute, and the attribute described in the attribute information of the i-th object group does not include the first An attribute, 1 ⁇ i ⁇ j, where j is the number of object groups in multiple object groups.
- the attributes described by the attribute information of the student object group and the police object group both include level attributes.
- the grade in the attribute information of the student object group is used to describe the level attribute
- the title in the attribute information of the police object group is used to describe Level attributes. If the attribute described by the attribute information of the person object group does not include the level attribute, it can be determined that the person object group satisfies the pull-up condition.
- the sinking condition includes: the attribute described in the attribute information of the i-th object group includes a second attribute, and the attribute described in the attribute information of each lower-layer object group associated with the i-th object group does not include the first Two attributes. For example, suppose the level in the attribute information of the person object group is used to describe the level attribute. If the attributes described by the attribute information of the student object group and the police object group do not include the level attribute, for example, the attribute information of the student object group does not include the grade, The attribute information of the police object group does not include the job title, it can be determined that the human object group meets the sinking condition.
- Step 2013 When the i-th object group satisfies the pull-up condition, attribute information describing the first attribute is added to the attribute information of the i-th object group to update the attribute information of the plurality of object groups.
- Attribute information describing the first attribute may be added to the attribute information of the i-th object group to update the attribute information of the i-th object group. That is, the attributes required by the upper-level object group are obtained from the attribute information of the multiple lower-level object groups, so that the attribute information of the upper-level object group can be adjusted according to the attributes of the multiple lower-level object groups to avoid lack of experience or experts Carelessness, missing some attribute information of the upper object group.
- Step 2014 When the i-th object group meets the sinking condition, remove the attribute information describing the second attribute from the attribute information of the i-th object group to update the attribute information of the plurality of object groups.
- the attribute information describing the second attribute in the attribute information of the i-th object group may be removed to update the attribute information of the i-th object group. That is, attribute information that is not required by the upper-level object group is derived from the attribute information of the multiple lower-level object groups, so that the attribute information of the upper-level object group can be adjusted according to the attribute information of the multiple lower-level object groups to avoid lack of experience. Or the negligence of the expert, it is determined that the attribute information of the upper-level object group is redundant.
- Step 2015 Determine an ontology template according to the updated attribute information of multiple object groups.
- Step 202 Instantiate the specified data set according to the ontology template and the instantiation rules to obtain instance attribute information of multiple objects.
- the specified data set is data that needs to be instantiated. Processing the data set can obtain instance attribute information of multiple objects.
- the computer device needs to first determine attribute information of each underlying object group according to the ontology template.
- the computer device can directly obtain the attribute information corresponding to each underlying object group from the ontology template, and correspondingly obtain each object group obtained.
- the attribute information is determined as the attribute information of each object group.
- the computer device needs to first obtain the attribute information corresponding to each underlying object group from the ontology template, and obtain the previous layer object associated with each underlying object group. Attribute information of the group; after that, the obtained attribute information (the attribute information corresponding to each underlying object group and the attribute information of the upper-level object group associated with each object group) can be determined as each underlying layer The attribute information of the object group.
- the attribute information of the upper-level object group is attribute information corresponding to the upper-level object group; when the upper-level object group is not a top-level object group, For the process of obtaining the attribute information of the upper-level object group, refer to the process of obtaining the attribute information of each lower-level object group.
- a preset instantiation rule can also be obtained. Then, based on the attribute information of each underlying object group, combined with the instantiation rules, instantiate the data collection to extract instance attribute information of multiple objects in the data collection.
- the instance attribute information of Xiaohong can include: 6XXXX ... XXX (instantiation of ID number), 198X years December X (instantiation of birth date), Xiaohong (instantiation of name), female (instantiation of gender), third grade (instantiation of grade), third elementary school (instantiation of school name). It should be noted that the "X" means "some”.
- the instance attribute information of each object obtained by the final instantiation process may include: each object Time-dimensional attribute information in the time dimension.
- the objects described by the ontology can be: entities, relationships between entities, or entity-related events.
- the time-dimensional attribute information in the instance attribute information of these three objects will be explained below. Instructions.
- the time-dimensional attribute information of the entity may include: a surviving identifier for recording whether the entity is deceased.
- the time-dimensional attribute information of the entity may further include indication information of one or more of an entity's birth time and an entity's extinction time.
- the time-dimensional attribute information of the entity may further include: a surviving event identifier of the entity, and the surviving event identifier is used to record a triggering event when the time-dimensional attribute information of the entity changes.
- the time-dimensional attribute information of a person may include: a surviving identifier 1, a date of birth (instruction information for recording a person's birth date), and a date of death (instruction information for recording a person's demise time) , Survival event identification.
- the surviving mark 1 is used to record that the person is alive
- the surviving mark 0 is used to record that the person has died.
- the time-dimensional attribute information of a car (an entity) may include: survival identifier 0, production date (instruction information used to record the birth date of the car), scrap date (instruction information used to record the death time of the car), and survival events Logo.
- the surviving mark 1 is used to record that the car has not been scrapped
- the surviving mark 0 is used to record that the car has been scrapped.
- the time-dimensional attribute information of the event may include: whether it is directed, active, passive, event start time, and event end time. It should be noted that the event directed means that the event is initiated by one entity and the other entity is passively involved; the event non-directed means that the event is initiated and participated by all participating entities.
- the time-dimensional attribute information of the relationship includes: a version identifier of the relationship, wherein each relationship has one or more version identifiers, and each version identifier uniquely corresponds to a time period maintained by the relationship.
- the time-dimensional attribute information of the relationship further includes one or more of a start time and an end time of the relationship.
- the time-dimensional attribute information of the relationship further includes: a source event identifier of the relationship, and the source event identifier is used to record an event related to each version identifier of the relationship.
- Zhang San and Li Si had a living-dwelling relationship.
- the relationship version of Zhang San's and Li Si's living-dwelling relationship could be relationship version 1.
- the time period corresponding to this relationship version 1 was September 2, 2017 ⁇ September 5, 2017;
- Zhang San and Li Si had a cohabitation relationship again.
- the relationship version of Zhang San and Li Si's cohabitation relationship can be relationship version 2, the time corresponding to this relationship version 2.
- the segment is from October 2, 2017 to October 5, 2017.
- the attribute information of the object recorded in the ontology template includes attribute information for describing the attribute
- the instantiation of the attribute information of the object may be left blank, or the attribute information may not be instantiated.
- the indication information of the extinction event in the entity's time-dimensional attribute information can be left blank, or the attribute information is not instantiated, so that the data After the collection is instantiated, the indication information of the extinction event will not be obtained.
- Step 203 Store instance attribute information of multiple objects according to the specified storage structure to construct an ontology.
- instance attribute information may be stored in different ways according to the type of the object.
- the computer device can detect whether the historical instance attribute information of the i-th entity is stored locally, 1 ⁇ i ⁇ k, where k is multiple The number of entities in each object; when historical instance attribute information is stored locally with the i-th entity, the computer device may use the instance attribute information of the i-th entity to cover its historical instance attribute information. That is, once the computer device has the latest instance attribute information of an entity, it can overwrite the latest instance attribute information of the entity to ensure that the computer device always stores the latest instance attribute information locally, so that the computer The instance attribute information stored locally on the device is consistent with the attribute information of the entities in the real world. When the historical instance attribute information of the i-th entity is not stored locally, the computer device may directly store the instance attribute information of the i-th entity.
- the computer equipment can directly store the instance attribute information of the i-th event among the instance attribute information of multiple objects.
- the computer device may first determine the number of historical instance attribute information of the h-th relationship stored locally, 1 ⁇ h ⁇ p, p is the number of relations in the plurality of objects. For example, the computer device may determine the number of relationship versions of the h-th relationship stored locally as the number of historical instance attribute information of the h-th relationship stored locally.
- the computer device needs to determine whether the number of historical instance attribute information of the h-th relationship stored locally is greater than a preset number threshold; and the number of historical instance attribute information of the h-th relationship stored locally is greater than a preset number
- the peripheral recycle bin periodically deletes the data stored in it.
- the peripheral recycle bin can periodically delete data according to the instructions of the computer equipment.
- the relationship version in the remaining historical instance attribute information is the remaining relationship version
- the relationship version in the cleanable historical instance attribute information is the cleanable relationship version
- the time period indicated by the remaining relationship version is in the cleanable relationship version. After the time period.
- the time period indicated by the remaining relationship version is: October 2, 2017-October 5, 2017, and the relationship can be cleared
- the version is relationship version 1.
- the time period indicated by the cleanable relationship version is from September 2, 2017 to September 5, 2017.
- Step 204 Update the ontology when the target parameters are updated.
- the target parameter may include one or more of an ontology template, an instantiation rule, and a data set.
- the target parameters include an ontology template, an instantiation rule, and a data set.
- the ontology template, instantiation rules, and data collection can be stored on a peripheral storage medium of a computer device, and the ontology template, instantiation rules, and data collection can be stored on different peripheral storage media.
- the disclosed embodiments are not limited thereto.
- the staff can update the ontology template on the peripheral storage medium.
- the computer device may detect whether the ontology template, the instantiation rule, and the data set are updated.
- the computer device may The current instantiation rule instantiates the data to be processed to obtain instance attribute information of multiple update objects, where the data to be processed is the data to be instantiated indicated by the current instantiation rule in the current data set .
- the computer device may overwrite the stored instance attribute information with the instance attribute information of multiple update objects to update the ontology.
- the ontology created in the embodiment of the present disclosure can be changed with the target parameters and time, so that the ontology created in the embodiment of the present disclosure is not static but is a dynamically changing ontology. Dynamic Ontology.
- Step 205 Obtain a target query condition.
- the target query condition includes: a time condition.
- the initial conditions may include: time conditions (September 1, 2017-September 5, 2017), relationship type (cohabitation relationship), active party (Zhang San), passive party (Li Si).
- the computer equipment needs to determine whether the initial query condition includes a time condition, and when the initial query condition includes a time condition, determine that the initial query condition is a target query condition. It should be noted that if the initial query condition does not include a time condition, the computer device may add a preset time condition to the initial query condition to obtain a target query condition.
- the preset time condition may be used to record a recent time period, such as a time period from a certain historical time to a current time. For example, if the current time is October 1, 2018, the preset time condition can be used to record: the period from September 1, 2018 to October 1, 2018.
- Step 206 Query whether there is target instance attribute information that satisfies the target query condition in the ontology according to the target query condition.
- step 207 is performed; when the target instance attribute information does not exist in the ontology, step 208 is performed.
- Step 207 Obtain attribute information of the target instance.
- the target query conditions include: time condition (September 1, 2017-September 5, 2017), relationship type (cohabitation relationship), active party (Zhang San), passive party (Li Si), then According to the target query condition, the target instance attribute information can be found in the ontology: the instance attribute information of Zhang San and Li Si's cohabitation relationship from September 1, 2017 to September 5, 2017.
- Step 208 Query whether there is target instance attribute information in the peripheral recycle bin.
- step 207 is performed; when the target instance attribute information does not exist in the peripheral recycle bin, step 209 is performed.
- the target instance attribute information may be moved to the peripheral recycle bin. Therefore, the peripheral recycle bin can continue to query whether the target instance attribute information exists.
- the target instance attribute information in the peripheral recycle bin can be obtained.
- Step 209 Process the target data in the data set by using a preset processing method to obtain target instance attribute information.
- the processing of the target data in the data set by using a preset processing method may include: instantiating the target data in the data set according to the current ontology template and the current instantiation rule to obtain target instance attribute information.
- the computer device can obtain the target data in the data set, the target data is data generated in the data set within a specified time period, and the specified time period is time The time period indicated by the condition. Thereafter, the computer device may process the target data according to the current ontology template (ie, the latest ontology template) and the current instantiation rule (ie, the latest instantiation rule) to obtain target instance attribute information.
- the current ontology template ie, the latest ontology template
- the current instantiation rule ie, the latest instantiation rule
- the instance attribute information obtained in the embodiment of the present disclosure includes time-dimensional attribute information of the time dimension
- the ontology constructed based on the instance attribute information can describe the relationship between the object and time. In this way, the object described by the ontology Being able to unify with the objects in the real world improves the accuracy of the ontology.
- an ontology template is first obtained, and then instance attribute information of multiple objects is obtained according to the ontology template. Because the ontology template can associate multiple object groups in a hierarchical form according to attributes, it can sort and group multiple and disordered objects in the real world in an orderly manner, so that the objects that the ontology needs to describe can be classified. The ordering of the sequence therefore reduces the complexity of the ontology construction process.
- multiple object groups are associated in a hierarchical manner according to attributes, so that multiple and disordered objects in the real world can be ordered and classified into multiple layers, so that the attribute information of the objects in the ontology is The accuracy is higher.
- Grouping in the related art is based on the type of the object, so the granularity level of this method of grouping is type, and the granularity level of the method of grouping in the embodiments of the present disclosure is an attribute. Therefore, the embodiment of the present disclosure realizes the transition from grouping by type to grouping by attribute, realizes the transition from grouping at coarse grain level to grouping at fine grain level, and refines grouping of objects.
- FIG. 6 is a schematic structural diagram of an ontology construction device according to an embodiment of the present disclosure. As shown in FIG. 6, the ontology construction device may include:
- a first processing module 601 configured to instantiate a specified data set to obtain instance attribute information of each of a plurality of objects
- a storage module 602 configured to store instance attribute information of multiple objects according to a specified storage structure to construct an ontology
- the instance attribute information of each object includes: time-dimensional attribute information of each object in the time dimension.
- the instance attribute information obtained by the first processing module in the embodiment of the present disclosure includes time-dimensional attribute information of the time dimension
- the ontology constructed by the storage module based on the instance attribute information can describe the relationship between the object and time.
- the objects described by the ontology can be unified with those in the real world, which improves the accuracy of the ontology.
- multiple objects include entities, and the time-dimensional attribute information of the entities includes one or more of the following:
- Survival event ID of the entity is used to indicate the trigger event when the entity's time-dimensional attribute information changes.
- the storage module 602 is configured to:
- the instance attribute information of the i-th entity is used to cover its historical instance attribute information.
- the multiple objects include relationships between entities, and the time-dimensional attribute information of the relationship includes one or more of the following:
- a version identifier of the relationship wherein each relationship has at least one version identifier, and each version identifier uniquely corresponds to a time period maintained by the relationship;
- the source event ID of the relationship is used to indicate events related to each version ID of the relationship.
- the storage module is used for:
- attribute information of the h-th relationship in multiple objects determine the number of historical instance attribute information of the h-th relationship stored locally, 1 ⁇ h ⁇ p, where p is the number of relationships in multiple objects;
- the cleanable historical instance attribute information of the hth relationship stored locally is moved to the peripheral recycle bin, so that the hth relationship
- the number of remaining historical instance attribute information of each relationship is less than or equal to a preset number threshold; wherein the historical instance attribute information of the h-th relationship includes: cleanable historical instance attribute information of the h-th relationship and the information of the h-th relationship Remaining historical instance attribute information;
- the relationship version in the remaining historical instance attribute information is the remaining relationship version
- the relationship version in the cleanable historical instance attribute information is the cleanable relationship version
- the time period corresponding to the remaining relationship version is after the time period corresponding to the cleanable relationship version.
- FIG. 7 is a schematic structural diagram of another ontology construction device according to an embodiment of the present disclosure. As shown in FIG. 7, based on FIG. 6, the ontology construction device further includes:
- a first obtaining module 603 is configured to obtain an ontology template and an instantiation rule.
- the ontology template is used to record attribute information of multiple object groups.
- Each object group includes objects of the same type, and multiple object groups are related in a hierarchical form.
- the first processing module 601 is configured to: instantiate the data set according to the ontology template and the instantiation rules; wherein the instance attribute information of each object in the multiple objects is based on the attribute information recorded in the ontology template. Extracted information.
- a detection module 604 configured to detect whether an ontology template, an instantiation rule, and a data set are updated
- the second processing module 605 is configured to instantiate the data to be processed according to the current ontology template and the current instantiation rule when one or more of the ontology template, the instantiation rule, and the data set are updated, so as to obtain multiple Update the instance attribute information of the object, where the data to be processed is the data to be instantiated indicated by the current instantiation rule in the current data set;
- the overwriting module 606 is configured to overwrite the stored instance attribute information of the multiple update objects to update the ontology.
- the second obtaining module 607 is configured to obtain a target query condition, and the target query condition includes: a time condition;
- a first query module 608, configured to query whether there is target instance attribute information that satisfies the target query condition in the ontology according to the target query condition;
- the third obtaining module 609 is configured to obtain target instance attribute information when the target instance attribute information exists in the ontology.
- a second query module 610 configured to query whether the target instance attribute information exists in the peripheral recycle bin when the ontology does not include the target instance attribute information
- the third obtaining module 609 is further configured to execute the step of obtaining the target instance attribute information when the target instance attribute information exists in the peripheral recycle bin;
- the third processing module 611 is configured to instantiate the target data in the data set according to the current ontology template and the current instantiation rule when the target instance attribute information does not exist in the peripheral recycle bin to obtain the target instance. Attribute information
- the time condition is used to indicate a specified time period
- the target data is data generated in the data set within the specified time period
- the second obtaining module 608 is configured to: receive the initial query condition; determine whether the initial query condition includes a time condition; when the initial query condition includes the time condition, determine that the initial query condition is the target query condition; when the initial query condition does not include the time condition, The preset time condition is added to the initial query condition to obtain the target query condition.
- the instance attribute information obtained by the first processing module in the embodiment of the present disclosure includes time-dimensional attribute information of the time dimension
- the ontology constructed by the storage module based on the instance attribute information can describe the relationship between the object and time.
- the objects described by the ontology can be unified with those in the real world, which improves the accuracy of the ontology.
- An embodiment of the present disclosure also provides a computer-readable storage medium.
- a computer program is stored in the storage medium, and the computer program is executed by a processor to implement the ontology construction method.
- An embodiment of the present disclosure also provides a computer program product containing instructions, which causes the computer to execute the ontology construction method described above when the computer program product runs on the computer.
- the embodiment of the ontology construction method and the embodiment of the ontology construction device provided by the embodiments of the present disclosure may refer to each other, and the embodiments of the present disclosure do not limit this.
- the order of the steps of the method embodiments provided by the embodiments of the present invention can be appropriately adjusted, and the steps can be increased or decreased according to the situation. Any person skilled in the art can easily think of changes within the technical scope disclosed by the present invention. The methods should all be covered by the protection scope of the present invention, so they will not be described again.
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Abstract
Description
Claims (24)
- 一种本体构建方法,其特征在于,所述方法包括:对指定的数据集合进行实例化处理,得到多个对象中每个对象的实例属性信息;其中,所述每个对象的实例属性信息包括:所述每个对象在时间维度上的时维属性信息;按照指定的存储结构,存储所述多个对象的实例属性信息,以构建所述本体。
- 根据权利要求1所述的方法,其特征在于,所述多个对象包括实体,所述实体的时维属性信息包括以下一种或多种:用于记载所述实体是否消亡的存续标识;所述实体的诞生时间的指示信息;所述实体的消亡时间的指示信息;所述实体的存续事件标识,所述存续事件标识用于记载所述实体的时维属性信息发生变化的触发事件。
- 根据权利要求2所述的方法,其特征在于,所述存储所述多个对象的实例属性信息,包括:对于所述多个对象中第i个实体的实例属性信息,检测本地是否存储有所述第i个实体的历史实例属性信息,1≤i≤k,k为所述多个对象中实体的个数;在本地存储有与所述第i个实体的历史实例属性信息时,采用所述第i个实体的实例属性信息覆盖其历史实例属性信息。
- 根据权利要求1至3任一所述的方法,其特征在于,所述多个对象包括实体间的关系,所述关系的时维属性信息包括以下一种或多种:所述关系的版本标识,其中,每个所述关系具有至少一个版本标识,每个所述版本标识唯一对应所述关系所维持的一个时间段;所述关系的起始时间的指示信息;所述关系的结束时间的指示信息;所述关系的来源事件标识,所述来源事件标识用于记载与所述关系的每个 版本标识相关的事件。
- 根据权利要求4所述的方法,其特征在于,所述存储所述多个对象的实例属性信息,包括:对于所述多个对象中第h个关系的实例属性信息,确定本地存储的所述第h个关系的历史实例属性信息的个数,1≤h≤p,p为所述多个对象中关系的个数;判断本地存储的所述第h个关系的历史实例属性信息的个数是否大于预设个数阈值;在本地存储的所述第h个关系的历史实例属性信息的个数大于所述预设个数阈值时,将本地存储的所述第h个关系的可清理历史实例属性信息移动至外设回收站,以使得所述第h个关系的剩余历史实例属性信息的个数小于或等于所述预设个数阈值;其中,所述第h个关系的历史实例属性信息包括:所述第h个关系的可清理历史实例属性信息和所述第h个关系的剩余历史实例属性信息;存储所述第h个关系的实例属性信息。
- 根据权利要求5所述的方法,其特征在于,所述剩余历史实例属性信息中的关系版本为剩余关系版本,所述可清理历史实例属性信息中的关系版本为可清理关系版本;所述剩余关系版本所对应的时间段在所述可清理关系版本所对应的时间段之后。
- 根据权利要求1至6任一所述的方法,其特征在于,在所述对指定的数据集合进行实例化处理之前,所述方法还包括:获取本体模板和实例化规则,其中,所述本体模板用于记载多个对象组的属性信息,每个对象组包括属于同一类型的对象,所述多个对象组以层级的形式关联;所述对指定的数据集合进行实例化处理,包括:根据所述本体模板和所述实例化规则,对所述数据集合进行所述实例化处理;其中,所述多个对象中每个对象的实例属性信息为基于所述本体模板所记载的属性信息,在所述数据集合中提取的信息。
- 根据权利要求7所述的方法,其特征在于,在存储所述多个对象的实例属性信息之后,所述方法还包括:分别检测所述本体模板、所述实例化规则以及所述数据集合是否更新;当所述本体模板、所述实例化规则以及所述数据集合中的一个或多个更新时,根据当前的本体模板和当前的实例化规则对待处理数据进行实例化处理,以得到多个更新对象的实例属性信息,其中,所述待处理数据为当前的数据集合中所述当前的实例化规则所指示的待进行实例化处理的数据;将所述多个更新对象的实例属性信息覆盖已存储的实例属性信息,以更新所述本体。
- 根据权利要求1至8任一所述的方法,其特征在于,在基于所述多个对象的实例属性信息构建所述本体之后,所述方法还包括:获取目标查询条件,所述目标查询条件包括:时间条件;根据所述目标查询条件,查询所述本体中是否存在满足所述目标查询条件的目标实例属性信息;在所述本体中存在所述目标实例属性信息时,获取所述目标实例属性信息。
- 根据权利要求9所述的方法,其特征在于,所述获取目标查询条件,包括:接收初始查询条件;判断所述初始查询条件是否包括所述时间条件;在所述初始查询条件包括所述时间条件时,确定所述初始查询条件为所述目标查询条件;在所述初始查询条件不包括所述时间条件时,将预设的时间条件加入所述初始查询条件,以得到所述目标查询条件。
- 根据权利要求9所述的方法,其特征在于,所述方法还包括:在所述本体不包括所述目标实例属性信息时,查询外设回收站中是否存在所述目标实例属性信息;在所述外设回收站中存在所述目标实例属性信息时,执行获取所述目标实 例属性信息的步骤;在所述外设回收站中不存在所述目标实例属性信息时,根据当前的本体模板和当前的实例化规则对所述数据集合中的目标数据进行实例化处理,以得到所述目标实例属性信息;其中,所述时间条件用于记载指定时间段,所述目标数据为所述数据集合中在所述指定时间段内生成的数据。
- 一种本体构建装置,其特征在于,所述本体构建装置包括:第一处理模块,用于对指定的数据集合进行实例化处理,得到多个对象中每个对象的实例属性信息;其中,所述每个对象的实例属性信息包括:所述每个对象在时间维度上的时维属性信息;存储模块,用于按照指定的存储结构,存储所述多个对象的实例属性信息,以构建所述本体。
- 根据权利要求12所述的本体构建装置,其特征在于,所述多个对象包括实体,所述实体的时维属性信息包括以下一种或多种:用于记载所述实体是否消亡的存续标识;所述实体的诞生时间的指示信息;所述实体的消亡时间的指示信息;所述实体的存续事件标识,所述存续事件标识用于记载所述实体的时维属性信息发生变化的触发事件。
- 根据权利要求13所述的本体构建装置,其特征在于,所述存储模块用于:对于所述多个对象中第i个实体的实例属性信息,检测本地是否存储有所述第i个实体的历史实例属性信息,1≤i≤k,k为所述多个对象中实体的个数;在本地存储有与所述第i个实体的历史实例属性信息时,采用所述第i个实体的实例属性信息覆盖其历史实例属性信息。
- 根据权利要求12至14任一所述的本体构建装置,其特征在于,所述 多个对象包括实体间的关系,所述关系的时维属性信息包括以下一种或多种:所述关系的版本标识,其中,每个所述关系具有至少一个版本标识,每个所述版本标识唯一对应所述关系所维持的一个时间段;所述关系的起始时间的指示信息;所述关系的结束时间的指示信息;所述关系的来源事件标识,所述来源事件标识用于记载与所述关系的每个版本标识相关的事件。
- 根据权利要求15所述的本体构建装置,其特征在于,所述存储模块用于:对于所述多个对象中第h个关系的实例属性信息,确定本地存储的所述第h个关系的历史实例属性信息的个数,1≤h≤p,p为所述多个对象中关系的个数;判断本地存储的所述第h个关系的历史实例属性信息的个数是否大于预设个数阈值;在本地存储的所述第h个关系的历史实例属性信息的个数大于所述预设个数阈值时,将本地存储的所述第h个关系的可清理历史实例属性信息移动至外设回收站,以使得所述第h个关系的剩余历史实例属性信息的个数小于或等于所述预设个数阈值;其中,所述第h个关系的历史实例属性信息包括:所述第h个关系的可清理历史实例属性信息和所述第h个关系的剩余历史实例属性信息;存储所述第h个关系的实例属性信息。
- 根据权利要求16所述的本体构建装置,其特征在于,所述剩余历史实例属性信息中的关系版本为剩余关系版本,所述可清理历史实例属性信息中的关系版本为可清理关系版本;所述剩余关系版本所对应的时间段在所述可清理关系版本所对应的时间段之后。
- 根据权利要求12至17任一所述的本体构建装置,其特征在于,所述本体构建装置还包括:第一获取模块,用于获取本体模板和实例化规则,其中,所述本体模板用 于记载多个对象组的属性信息,每个对象组包括属于同一类型的对象,所述多个对象组以层级的形式关联;所述第一处理模块用于:根据所述本体模板和所述实例化规则,对所述数据集合进行所述实例化处理;其中,所述多个对象中每个对象的实例属性信息为基于所述本体模板所记载的属性信息,在所述数据集合中提取的信息。
- 根据权利要求18所述的本体构建装置,其特征在于,所述本体构建装置还包括:检测模块,用于分别检测所述本体模板、所述实例化规则以及所述数据集合是否更新;第二处理模块,用于在所述本体模板、所述实例化规则以及所述数据集合中的一个或多个更新时,根据当前的本体模板和当前的实例化规则对待处理数据进行实例化处理,以得到多个更新对象的实例属性信息,其中,所述待处理数据为当前的数据集合中所述当前的实例化规则所指示的待进行实例化处理的数据;覆盖模块,用于将所述多个更新对象的实例属性信息覆盖已存储的实例属性信息,以更新所述本体。
- 根据权利要求12至19任一所述的本体构建装置,其特征在于,所述本体构建装置还包括:第二获取模块,用于获取目标查询条件,所述目标查询条件包括:时间条件;第一查询模块,用于根据所述目标查询条件,查询所述本体中是否存在满足所述目标查询条件的目标实例属性信息;第三获取模块,用于在所述本体中存在所述目标实例属性信息时,获取所述目标实例属性信息。
- 根据权利要求20所述的本体构建装置,其特征在于,所述第二获取模块用于:接收初始查询条件;判断所述初始查询条件是否包括所述时间条件;在所述初始查询条件包括所述时间条件时,确定所述初始查询条件为所述目标查询条件;在所述初始查询条件不包括所述时间条件时,将预设的时间条件加入所述初始查询条件,以得到所述目标查询条件。
- 根据权利要求20所述的本体构建装置,其特征在于,所述本体构建装置还包括:第二查询模块,用于在所述本体不包括所述目标实例属性信息时,查询外设回收站中是否存在所述目标实例属性信息;所述第三获取模块还用于在所述外设回收站中存在所述目标实例属性信息时,执行获取所述目标实例属性信息的步骤;第三处理模块,用于在所述外设回收站中不存在所述目标实例属性信息时,根据当前的本体模板和当前的实例化规则对所述数据集合中的目标数据进行实例化处理,以得到所述目标实例属性信息;其中,所述时间条件用于记载指定时间段,所述目标数据为所述数据集合中在所述指定时间段内生成的数据。
- 一种计算机设备,其特征在于,包括处理器、通信接口、存储器和通信总线,其中,处理器,通信接口,存储器通过总线完成相互间的通信;存储器,用于存放计算机程序;处理器,用于执行存储器上所存放的程序,实现权利要求1至11任一所述的方法。
- 一种计算机可读存储介质,其特征在于,所述存储介质内存储有计算机程序,所述计算机程序被处理器执行时实现权利要求1至11任一所述的方法。
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