Research On The Construction Technology Of News Chapter Event Chain Based On Verb-argument Structure

News is one of the key messages of concern,with the arrival of large data age,in the vast ocean of data filled with a variety of news,every day updated countless news,how to achieve a smaller price faster,More effective news information is an urgent task to solve.In this paper,according to the problem of obtaining news text information points,the news text is expressed as the information point,and the key information of the text is obtained by using the event chain construction technology.The verb is based on the structure of the verb structure,The event framework defines the type of event,builds the event chain based on the event context link event,and uses the event chain to describe the evolution of the news event.The event chain reflects the context of the news text,which is closely related to the lexicon.This paper mainly from the following four aspects of research:(1)Constructing the verb-argument structure of corpusAfter preprocessing the news text,mark the verb,pruning the nodes that can not bear the predicate role in the dependent tree,reduce the number of instances input to the dependent distance classifier,and then use the conditional random field The semantic roles are used to classify the semantic roles,and the verb is used to construct the corpus.On the Formation of Verbs-Argument-Structure Expression.(2)the construction of event framework libraryThe event framework library is composed of a semantic cognitive structure that is formalized into a framework to describe a set of concepts of a class of events.Specifically,the framework contains the name of the framework,the definition,the core framework elements and non-core framework elements,the framework of the target word element and the relationship between the framework.Define the event information The description framework is the event type of the described event,and the framework relationship is the event relationship.(3)the construction of the event chainThe definition of the event chain is divided into two parts:the definition of the event and the definition of the event chain.The event is the basic unit of the event chain,which is mainly described by the verb-argument structure expression.The event chain will mainly extract the event according to certain Relationships are linked to each other.That is,the verb-argument structure expression as the basic unit,the lexical chain and the event framework as the basis,according to the event relationship to build the news text of the event chain.(4)Using the above research results,the journal education text as the object of specific experiments,design and implementation of the event chain to build the prototype system.