Model driven optimization of annotator execution in question answering system
First Claim
1. A method, in a data processing system comprising a processor and a memory, for scheduling execution of pre-execution operations of an annotator of a question and answer (QA) system pipeline, the method comprising:
- using, by the data processing system, a model to represent a system of annotators of the QA system pipeline, wherein the model represents each annotator in the system of annotators as a node having one or more performance parameters for indicating a performance of an execution of an annotator corresponding to the node, wherein each annotator in the s stem of annotators is a program that takes a portion of unstructured input text, extracts structured information from the portion of the unstructured input text, and generates annotations or metadata that are attached by the annotator to a source of the unstructured input text, wherein, for each node in the model, the one or more performance parameters corresponding to the node comprise an arrival rate parameter and a service rate parameter of the annotator associated with the node, wherein the arrival rate parameter indicates a number of jobs arriving in the node per second, and wherein the service rate parameter indicates a number of jobs being serviced by the node per second;
determining, by the data processing system, for each annotator in a set of annotators of the system of annotators, an effective response time for the annotator based on the one or more performance parameters;
calculating, by the data processing system, a pre-execution start interval for a first annotator based on an effective response time of a second annotator, wherein execution of the first annotator is sequentially after execution of the second annotator; and
scheduling, by the data processing system, execution of pre-execution operations associated with the first annotator based on the calculated pre-execution start interval for the first annotator.
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Abstract
Mechanisms are provided for scheduling execution of pre-execution operations of an annotator of a question and answer (QA) system pipeline. A model is used to represent a system of annotators of the QA system pipeline, where the model represents each annotator as a node having one or more performance parameters indicating a performance of an execution of an annotator corresponding to the node. For each annotator in a set of annotators of the system of annotators, an effective response time for the annotator is calculated based on the performance parameters. A pre-execution start interval for a first annotator based on an effective response time of a second annotator is calculated where execution of the first annotator is sequentially after execution of the second annotator. Execution of pre-execution operations associated with the first annotator is scheduled based on the calculated pre-execution start interval for the first annotator.
17 Citations
6 Claims
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1. A method, in a data processing system comprising a processor and a memory, for scheduling execution of pre-execution operations of an annotator of a question and answer (QA) system pipeline, the method comprising:
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using, by the data processing system, a model to represent a system of annotators of the QA system pipeline, wherein the model represents each annotator in the system of annotators as a node having one or more performance parameters for indicating a performance of an execution of an annotator corresponding to the node, wherein each annotator in the s stem of annotators is a program that takes a portion of unstructured input text, extracts structured information from the portion of the unstructured input text, and generates annotations or metadata that are attached by the annotator to a source of the unstructured input text, wherein, for each node in the model, the one or more performance parameters corresponding to the node comprise an arrival rate parameter and a service rate parameter of the annotator associated with the node, wherein the arrival rate parameter indicates a number of jobs arriving in the node per second, and wherein the service rate parameter indicates a number of jobs being serviced by the node per second; determining, by the data processing system, for each annotator in a set of annotators of the system of annotators, an effective response time for the annotator based on the one or more performance parameters; calculating, by the data processing system, a pre-execution start interval for a first annotator based on an effective response time of a second annotator, wherein execution of the first annotator is sequentially after execution of the second annotator; and scheduling, by the data processing system, execution of pre-execution operations associated with the first annotator based on the calculated pre-execution start interval for the first annotator. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification