1. Cutler, R., Rui, Y., Gupta, A., Cadiz, J., Tashev, T., He, L., Colburn, A., Zhang, Z., Liu, Z., Silverberg, S.: Distributed meetings: A meeting capture and broadcasting system. In: Proc. ACM Multimedia 2002, pp. 503–512 (2002)
2. Bett, M., Gross, R., Yu, H., Zhu, X., Pan, Y., Yang, J., Waibel, A.: Multimodal meeting tracker. In: Proc. RIAO 2000: Content-Based Multimodal Inform. Access (2000)
3. Heylen, D., Es, I.V., Nijholt, A., Dijk, B.V.: Experimenting with the gaze of a conversational agent. In: Proc. Int. CLASS Workshop on Natural Intelligent and Effective Interaction in Multimodal Dialogue Systems, pp. 93–100 (2002)
4. McCowan, I., Perez, D., Bengio, S., Lathoud, G., Barnard, M., Zhang, D.: Automatic analysis of multimodal group actions in meetings. IEEE Trans. PAMI 27 (2005)
5. Zhang, D., Perez, D.G., Bengio, S., McCowan, I., Lathoud, G.: Modeling individual and group actions in meetings: A two-layer HMM framework. In: Proc. 2nd. IEEE Workshop on Event Mining (2004)