In this article, a distributed medium access scheme called EDCF, which is adopted in an upcoming standard IEEE802.11e to allow prioritized medium access for applications with QoS requirements, is described and discussed. Its performance is also evaluated via simulations. This work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy in whole or in p...

We describe the semantics of the plan representation in Collagen and how it supports the generation, recognition and communication of intentions in human-computer collaboration. This integrated architecture is made possible in large part because of the foundations of the representation in collaborative discourse theory. AAAI Spring Symposium 2007 This work may not be copied or reproduced in who...

We propose several 8-dimensional modulation formats for coherent fiber-optic communications. For spectral efficiencies of 1.75 and 2 b/s/Hz/pol, the proposed modulations offer up to 1 dB gain over DP-QPSK. European Conference and Exhibition on Optical Communication (ECOC) This work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy in whole or in ...

In this paper we present a novel algorithm for reconstructing 3D scenes from a setwith other methods. Symposium on Geometry Processing, 2003 This work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy in whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copie...

this empirical study deals with language contact phenomena in sistan. code-copying is viewed as a strategy of linguistic behavior when a dominated language acquires new elements in lexicon, phonology, morphology, syntax, pragmatic organization, etc., which can be interpreted as copies of a dominating language. in this framework persian is regarded as the model code which provides elements for b...

In this research, we propose the task of question summarization. We first analyzed question-summary pairs extracted from a Community Question Answering (CQA) site, and found that a proportion of questions cannot be summarized by extractive approaches but requires abstractive approaches. We created a dataset by regarding the question-title pairs posted on the CQA site as question-summary pairs. ...