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The system supports spoken language queries regarding stock market information and simulated personal portfolios. The conversational interface is augmented with a screen display that can capture mouse-clicks as well as textual input by typing or stylus-writing. Real-time information is retrieved directly from a dedicated Reuters satellite feed. ISIS provides a system test-bed for our work in multilingual speech recognition and generation, speaker authentication, language understanding and dialog modeling. This article reports on our new explorations within the context of ISIS, including: (i) adaptivity to knowledge scope expansion; (ii) asynchronous human-computer interaction by task delegation to software agents; (iii) multi-threaded online interaction and offline delegation dialogs with interruptions for task switching.<\/jats:p>","DOI":"10.1145\/1017494.1017497","type":"journal-article","created":{"date-parts":[[2004,10,7]],"date-time":"2004-10-07T17:38:56Z","timestamp":1097170736000},"page":"268-299","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":8,"title":["ISIS"],"prefix":"10.1145","volume":"11","author":[{"given":"Helen","family":"Meng","sequence":"first","affiliation":[{"name":"The Chinese University of Hong Kong, Shatin, Hong Kong, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P. C.","family":"Ching","sequence":"additional","affiliation":[{"name":"The Chinese University of Hong Kong, Shatin, Hong Kong, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuk Fong","family":"Chan","sequence":"additional","affiliation":[{"name":"The Chinese University of Hong Kong, Shatin, Hong Kong, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yee Fong","family":"Wong","sequence":"additional","affiliation":[{"name":"The Chinese University of Hong Kong, Shatin, Hong Kong, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cheong Chat","family":"Chan","sequence":"additional","affiliation":[{"name":"The Chinese University of Hong Kong, Shatin, Hong Kong, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2004,9]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1016\/0167-6393(95)00028-M"},{"key":"e_1_2_1_2_1","volume-title":"Proceedings of the International Conference on Spoken Language Technologies (ICSLP-00)","volume":"1","author":"Bazzi J.","unstructured":"Bazzi , J. and Glass , J . 2000. 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IEEE, Volume 2, 229--232.]] 10.1109\/ICASSP.2000.859188"},{"volume-title":"Proceedings of the International Conference on Spoken Language Processing (ICSLP-02)","author":"Meng H.","key":"e_1_2_1_30_1","unstructured":"Meng , H. , Ching , P. C. , Wong , Y. F. , and Chan , C. C . 2002b. A multi-modal, trilingual, distributed spoken dialog system developed with CORBA, JAVA, XML and KQML . In Proceedings of the International Conference on Spoken Language Processing (ICSLP-02) , Denver. 2561--2564.]] Meng, H., Ching, P. C., Wong, Y. F., and Chan, C. C. 2002b. A multi-modal, trilingual, distributed spoken dialog system developed with CORBA, JAVA, XML and KQML. In Proceedings of the International Conference on Spoken Language Processing (ICSLP-02), Denver. 2561--2564.]]"},{"key":"e_1_2_1_31_1","first-page":"1551","article-title":"ISIS: A learning system with combined interaction and delegation dialogs. In Proceedings of the 7th European Conference on Speech Communication and Technology (Eurospeech-01)","volume":"3","author":"Meng H.","year":"2001","unstructured":"Meng , H. , Chan , S. F. , Wong , Y. F , Chan , C. C. , Wong , Y. W. , Fung , T. Y. , Tsui , W. C. , Chen , K. , Wang , L. , Wu , T. Y. , Li , X. L. , Lee , T. , Choi , W. N. , Ching , P. C. , and Chi , H. S. 2001 . ISIS: A learning system with combined interaction and delegation dialogs. In Proceedings of the 7th European Conference on Speech Communication and Technology (Eurospeech-01) . Scandinavia. Volume 3 , 1551 -- 1554 .]] Meng, H., Chan, S. F., Wong, Y. F, Chan, C. C., Wong, Y. W., Fung, T. Y., Tsui, W. C., Chen, K., Wang, L., Wu, T. Y., Li, X. L., Lee, T., Choi, W. N., Ching, P. C., and Chi, H. S. 2001. ISIS: A learning system with combined interaction and delegation dialogs. In Proceedings of the 7th European Conference on Speech Communication and Technology (Eurospeech-01). Scandinavia. 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