CN108182295A - A kind of Company Knowledge collection of illustrative plates attribute extraction method and system - Google Patents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
- G06F16/36—Creation of semantic tools, e.g. ontology or thesauri
- G06F16/367—Ontology
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Abstract
Description
Claims (10)
- A kind of 1. Company Knowledge collection of illustrative plates attribute extraction method, which is characterized in that include the following steps:Define the entity class, event category, entity attribute structure of training sample;Training sample language material prepares and mark;Training entity attribute extraction model;Target text input entity attribute extraction model is obtained into target text entity attribute;Entity attribute fusion is performed to target text.
- 2. a kind of Company Knowledge collection of illustrative plates attribute extraction method according to claim 1, which is characterized in thatThe entity class, event category, entity attribute structure for defining training sample includes,It is enterprise's factor or/and individual factor to define entity class;Definition event category for judgement document, law court's bulletin, announcement of court session, bidding, equity, strategy, occurrences in human life, finance, debt, It is a variety of or a kind of in product, marketing, brand, accident;The field of defined attribute is type field, a variety of or a kind of in time field, tag field, body field;Training sample language material prepares and mark includes, the event category of each text and entity attribute structure mark to training sample database Note.
- 3. a kind of Company Knowledge collection of illustrative plates attribute extraction method according to claim 1, which is characterized in thatTraining entity attribute extraction model includes the following steps:S1:It is marked by word, inputs, obtain using N*K dimension word vector matrixs as the first two-way long short-term memory Recognition with Recurrent Neural Network The N*T dimension mark class probability distribution matrixes of each word, wherein N is batch dimensional values, and K is embedded in vector length for word, and T is marked for word Classification number, the position of maximum value corresponds to the label of current word, and obtains the word embedding data of each word;S2:Determine training sample main information;S3:Event vector is defined as the following formula, wherein, eventEmbedding is event vector, wjRepresent j-th word in sentence Vector, n represent the sentence within main body longitudinal separation n;It is marked by event, using N*K dimension event vector matrixes as the second two-way long short-term memory Recognition with Recurrent Neural Network initial input, Wherein N is batch dimensional values, and K is embedded in vector length for word, and L is the classification number of event mark, and the position of maximum value, which has corresponded to, works as The label of preceding event;Defining Bayes network is:P (A, B, C, D)=P (D | A, B) * P (C | A) * P (B | A) P (A),A is the probability whether text describes certain class event,B is the successful probability of event extraction,C is the probability containing temporal information,D is the probability of the vocabulary containing specific area,Wherein the value of B by N*L tie up mark class probability distribution matrix output label it is whether identical with training sample mark determine, if It is identical, B be assigned a value of 1 if differing B be assigned a value of 0,The first N*L dimension matrixes are obtained from the second two-way long short-term memory Recognition with Recurrent Neural Network and the first N*L is tieed up into Input matrix shellfish The 2nd N*L dimension matrixes of Bayesian network output and the first N*L dimension matrixes are performed Fusion Features, feature are melted by this network of leaf It closes result and feeds back to the second two-way long short-term memory Recognition with Recurrent Neural Network;S4:The output that loss function is defined as the two-way long each timing node of short-term memory Recognition with Recurrent Neural Network is beaten with training sample The mean square error of data is marked, repeats step S3 to loss function convergence.
- 4. a kind of Company Knowledge collection of illustrative plates attribute extraction method as claimed in any of claims 1 to 3, feature exist In,Entity attribute extraction model, including,The first N*L dimension matrixes are obtained to hidden layer and tie up the first N*L before the second two-way long short-term memory Recognition with Recurrent Neural Network The 2nd N*L dimension matrixes of Bayesian network output are performed feature with the first N*L dimension matrixes and melted by Input matrix Bayesian network It closes, using Fusion Features result as the input to hidden layer after the second two-way long short-term memory Recognition with Recurrent Neural Network;Alternatively,The first N*L dimension matrixes are obtained from the second two-way long short-term memory Recognition with Recurrent Neural Network output layer and the first N*L is tieed up into matrix Bayesian network is inputted, the 2nd N*L dimension matrixes of Bayesian network output and the first N*L dimension matrixes are performed into Fusion Features, it will Input of the Fusion Features result as the second two-way long short-term memory Recognition with Recurrent Neural Network input layer.
- 5. a kind of Company Knowledge collection of illustrative plates attribute extraction method according to claim 1, which is characterized in thatEntity attribute fusion is performed to target text to include the following steps:A selectes the foundation structure of event solid data as substrate value according to the similitude with stay in place form;B traverses Candidate Set event, by tree depth-first sequence match attribute;C is when two events compare, it then follows following rule:If existence foundation structure node attribute value lacks, directly supplement;If in existence foundation structure, corresponding node attribute values clash, if quality evaluation functions obtain the attribute of Candidate Set Value is more excellent, and the non-null value of substrate is replaced;If substrate attribute is listings format, increase the table of substrate non-duplicate element exclusive in Candidate Set;D repeat step B and step C can not continue to attribute it is perfect.
- 6. a kind of Company Knowledge collection of illustrative plates attribute extraction system, which is characterized in that including with lower unit:Definition unit, for defining the entity class of training sample, event category, entity attribute structure;Mark unit, for the preparation of training sample language material and mark;Training unit, for training entity attribute extraction model;Entity attribute extracting unit, for target text input entity attribute extraction model to be obtained target text entity attribute;Attribute integrated unit, for performing entity attribute fusion to target text.
- 7. a kind of Company Knowledge collection of illustrative plates attribute extraction system according to claim 6, which is characterized in thatThe entity class, event category, entity attribute structure that definition unit defines training sample include,It is enterprise's factor or/and individual factor to define entity class;Definition event category for judgement document, law court's bulletin, announcement of court session, bidding, equity, strategy, occurrences in human life, finance, debt, It is a variety of or a kind of in product, marketing, brand, accident;The field of defined attribute is type field, a variety of or a kind of in time field, tag field, body field;The training sample language material prepares and mark includes to training sample database the event category of each text and entity attribute structure Mark.
- 8. a kind of Company Knowledge collection of illustrative plates attribute extraction system according to claim 6, which is characterized in thatTraining unit trains entity attribute extraction model using following steps:S1:It is marked by word, inputs, obtain using N*K dimension word vector matrixs as the first two-way long short-term memory Recognition with Recurrent Neural Network The N*T dimension mark class probability distribution matrixes of each word, wherein N is batch dimensional values, and K is embedded in vector length for word, and T is marked for word Classification number, the position of maximum value corresponds to the label of current word, and obtains the word embedding data of each word;S2:Determine training sample main information;S3:Event vector is defined as the following formula, wherein, eventEmbedding is event vector, wjRepresent j-th word in sentence Vector, n represent the sentence within main body longitudinal separation n;It is marked by event, using N*K dimension event vector matrixes as the second two-way long short-term memory Recognition with Recurrent Neural Network initial input, Wherein N is batch dimensional values, and K is embedded in vector length for word, and L is the classification number of event mark, and the position of maximum value, which has corresponded to, works as The label of preceding event;Defining Bayes network is:P (A, B, C, D)=P (D | A, B) * P (C | A) * P (B | A) P (A),A is the probability whether text describes certain class event,B is the successful probability of event extraction,C is the probability containing temporal information,D is the probability of the vocabulary containing specific area,Wherein the value of B by N*L tie up mark class probability distribution matrix output label it is whether identical with training sample mark determine, if It is identical, B be assigned a value of 1 if differing B be assigned a value of 0,The first N*L dimension matrixes are obtained from the second two-way long short-term memory Recognition with Recurrent Neural Network and the first N*L is tieed up into Input matrix shellfish The 2nd N*L dimension matrixes of Bayesian network output and the first N*L dimension matrixes are performed Fusion Features, feature are melted by this network of leaf It closes result and feeds back to the second two-way long short-term memory Recognition with Recurrent Neural Network;S4:The output that loss function is defined as the two-way long each timing node of short-term memory Recognition with Recurrent Neural Network is beaten with training sample The mean square error of data is marked, repeats step S3 to loss function convergence.
- 9. a kind of Company Knowledge collection of illustrative plates attribute extraction system according to any one in claim 6 to 8, feature exist In,Entity attribute extraction model, including,The first N*L dimension matrixes are obtained to hidden layer before the second two-way long short-term memory Recognition with Recurrent Neural Network, and the first N*L is tieed up The 2nd N*L dimension matrixes of Bayesian network output are performed feature with the first N*L dimension matrixes and melted by Input matrix Bayesian network It closes, using Fusion Features result as the input to hidden layer after the second two-way long short-term memory Recognition with Recurrent Neural Network;Alternatively,The first N*L dimension matrixes are obtained from the second two-way long short-term memory Recognition with Recurrent Neural Network output layer and the first N*L is tieed up into matrix Bayesian network is inputted, the 2nd N*L dimension matrixes of Bayesian network output and the first N*L dimension matrixes are performed into Fusion Features, it will Input of the Fusion Features result as the second two-way long short-term memory Recognition with Recurrent Neural Network input layer.
- 10. a kind of Company Knowledge collection of illustrative plates attribute extraction system according to claim 6, which is characterized in thatAttribute integrated unit takes following steps to perform entity attribute fusion to target text:A selectes the foundation structure of event solid data as substrate value according to the similitude with stay in place form;B traverses Candidate Set event, by the pairs of match attribute of tree depth-first sequence;C is when two events compare, it then follows following rule:If existence foundation structure node attribute value lacks, directly supplement;If in existence foundation structure, corresponding node attribute values clash, if quality evaluation functions obtain the attribute of Candidate Set Value is more excellent, and the non-null value of substrate is replaced;If substrate attribute is listings format, increase the table of substrate non-duplicate element exclusive in Candidate Set;D repeat step B and step C can not continue to attribute it is perfect.
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