In this paper we present the results of experiments comparing (a) rich syntactic and semantic feature sets and (b) big context windows, for the TempEval time expression and event segmentation and classification tasks. We show that it is possible for models using only lexical features to approach the performance of models using rich syntactic and semantic feature sets.

Eysenhardtia polystachya is widely used in folk medicine as an anti-rheumatic and analgesicagent, but no systematic study of its effects on several markers associated with rheumatoidarthritis and its ethnomedical use as analgesic agent has been performed. We evaluated theanti-arthritic and antinociceptive properties of an ethanolic extract of E. polystachya (EE) barkand its rich-flavonoids frac...

The distributions of peculiar velocities of rich clusters and of groups of galaxies are investigated for different cosmological models and are compared with observations. Four cosmological models are studied: standard (Ω = 1) CDM, low-density CDM, HDM (Ω = 1), and PBI. We find that rich clusters of galaxies exhibit a Maxwellian distribution of peculiar velocities in all models, as expected from...

This paper presents a new approach to distortion (phrase reordering) in phrasebased machine translation (MT). Distortion is modeled as a sequence of choices during translation. The approach yields trainable, probabilistic distortion models that are global: they assign a probability to each possible phrase reordering. These “segment choice” models (SCMs) can be trained on “segment-aligned” sente...

BACKGROUND One essential outcome after breast cancer treatment is recurrence of the disease. Treatment decision is based on assessment of prognostic factors of breast cancer recurrence. This study was to investigate the prognostic factors for postmastectomy locoregional recurrence (LRR) and survival in those patients. METHODS 114 patients undergoing mastectomy and adjuvant radiotherapy in Can...