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Dong Zhang

Cette personne a quitté l’EPFL

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Publications associées (5)

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Synthesis, Crystal Structure, and Magnetic Properties of the Copper Selenite Chloride Cu-5(SeO3)(4)Cl-2

Helmuth Berger, Dong Zhang

A new copper selenite chloride Cu-5(SeO3)(4)Cl-2 has been prepared by chemical vapor transport reactions. Its crystal structure was determined by single-crystal X-ray diffraction. The title compound crystallizes in the monoclinic space group P2(1)/c with t ...

2010

Crystal Structure and Magnetic Properties of Two New Antiferromagnetic Spin Dimer Compounds; FeTe3O7X (X = Cl, Br)

Jia Liu, Helmuth Berger, Dong Zhang

Two new isostructural layered oxohalides FeTe3O7X (X = Cl, Br) were synthesized by chemical vapor transport reactions, and their crystal structures and magnetic properties were characterized by single-crystal X-ray diffraction, Raman spectroscopy, magnetic ...

2011

Separation of the Oxide and Halide Part in the Oxohalide Fe3Te3O10Cl Due to High Lewis Acidity of the Cations

Helmuth Berger, Dong Zhang

A new iron tellurite halide Fe3Te3O10Cl has been identified that crystallizes in the monoclinic space group P2(1)/c. The crystal structure comprises channels where the Cl ions and also the stereochemically active lone-pair electrons on Te4+ are located. Th ...

2009

Probabilistic graphical models for human interaction analysis

Dong Zhang

The objective of this thesis is to develop probabilistic graphical models for analyzing human interaction in meetings based on multimodel cues. We use meeting as a study case of human interactions since research shows that high complexity information is mo ...

EPFL2006

Automatic Analysis of Multimodal Group Actions in Meetings

Daniel Gatica-Perez, Samy Bengio, Dong Zhang, Mark Barnard, Guillaume Lathoud

This paper investigates the recognition of group actions in meetings. A statistical framework is proposed in which group actions result from the interactions of the individual participants. The group actions are modelled using different HMM-based approache ...

2005