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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zweig, G. Siohan, O. Saon, G. Ramabhadran, B. Povey, D. Mangu, L. Kingsbury, B. |
| Copyright Year | 2006 |
| Description | Author affiliation: IBM Thomas J. Watson Res. Center (Zweig, G.; Siohan, O.; Saon, G.; Ramabhadran, B.; Povey, D.; Mangu, L.; Kingsbury, B.) |
| Abstract | This paper describes an automated system for assigning quality scores to recorded call center conversations. The system combines speech recognition, pattern matching, and maximum entropy classification to rank calls according to their measured quality. Calls at both end of the spectrum are flagged as "interesting" and made available for further human monitoring. In this process, pattern matching on the ASR transcript is used to answer a set of standard quality control questions such as "did the agent use courteous words and phrases," and to generate a question-based score. This is interpolated with the probability of a call being "bad," as determined by maximum entropy operating on a set of ASR-derived features such as "maximum silence length" and the occurrence of selected n-gram word sequences. The system is trained on a set of calls with associated manual evaluation forms. We present precision and recall results from IBM's North American Help Desk indicating that for a given amount of listening effort, this system triples the number of bad calls that are identified, over the current policy of randomly sampling calls |
| Sponsorship | The Inst. of Electr. and Electron. Eng., Inc. Circuits and Syst. Soc. (IEEE CASS) |
| File Size | 353626 |
| File Format | |
| ISBN | 142440469X |
| ISSN | 15206149 |
| DOI | 10.1109/ICASSP.2006.1660089 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-05-14 |
| Publisher Place | France |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Computerized monitoring Automatic speech recognition Entropy Humans Pattern matching Sampling methods Speech recognition Quality control Costs Interpolation |
| Content Type | Text |
| Resource Type | Article |
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