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Xibin Gao , North Carolina State University, Raleigh
Munindar P. Singh , North Carolina State University, Raleigh
ABSTRACT
Contracts are legally binding descriptions of business service engagements. In particular, we consider business events as elements of a service engagement. Business events such as purchase, delivery, bill payment, bank interest accrual not only correspond to essential processes but are also inherently temporally constrained. Identifying and understanding the events and their temporal relationships can help a business partner determine what to deliver and expect from others as it participates in the specified service engagement. However, contracts are expressed in unstructured text and their insights are buried therein. Our contributions are threefold. We develop a novel approach employing a hybrid of surface patterns, grammar parsing, and classification to (1) extract business events and (2) their temporal constraints from contract text. We use topic modeling to (3) automatically organize the event terms into clusters. An evaluation on a real-life contract dataset demonstrates the viability and promise of our hybrid approach, yielding an F-measure of 0.89 in event extraction and 0.90 in temporal constraints extraction. The topic model yields event term clusters with an average match of 85% between two independent human annotations and an expert-assigned set of class labels for the clusters.
INDEX TERMS
Aspects of Business Requirements, Services Computing, Services Lifecycle, General, Services Engagement, Services Composition
CITATION
Xibin Gao, Munindar P. Singh, "Mining Contracts for Business Events and Temporal Constraints in Service Engagements", IEEE Transactions on Services Computing, , no. 1, pp. 1, PrePrints PrePrints, doi:10.1109/TSC.2013.21
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