S2-09 SESSION 2

TEDR PROGRAMME 09:00-09:15 Registration 09:15-09:30 Opening session

Empirical studies of static and dynamic diagrams have traditionally collected outcome data indicating the effectiveness of these depictions with respect to comprehension and learning. Because outcome measures alone provide limited insights as to why diagrams are or are not effective, there has been growing interest in studying how people process these depictions. In some cases, the aim of this ...

S2-bundles over 2-orbifolds

Let M be a closed 4-manifold with π = π1(M) 6= 1 and π2(M) ∼= Z, and let u : π → Aut(π2(M)) be the natural action. If π ∼= Ker(u) × Z/2Z then M is homotopy equivalent to the total space of an RP -bundle over an aspherical surface. We show here that if π is not such a product then M is homotopy equivalent to the total space of an S-orbifold bundle over a 2orbifold B. There are at most two such o...

Session 2

Abstracts—session 2

S — SESSION 2 Sunday 10 October 2004, 15.00–16.30 Prevalence and significance of neck node metastases from oesophageal and stomach cancer at presentation J F Griffith, A T Ahuja, A C W Chan, E Ng, S F Leung#, C N Ng, D K Leung, L T C Chow@ and S C S Chung Departments of Diagnostic Radiology and Organ Imaging, Surgery, #Clinical Oncology and @Anatomical and Cellular Pathology, Prince of Wales, C...

Session 2: Language Modeling

This session presented four interesting papers on statistical language modeling aimed for improved large-vocabulary speech recognition. The basic problem in language modeling is to derive accurate underlying representations from a large amount of training data, which shares the same fundamental problem as acoustic modeling. As demonstrated in this session, many techniques used for acoustic mode...