CO2 injection has recently been shown to provide significant enhanced oil
recovery from naturally fractured reservoirs1. Li et al. (2000) performed CO2
injection at 1750 psig on artificially-fractured cores after water flooding in a
dead-oil system. Gravity drainage was suggested to be the dominant recovery
mechanism in these tests, with significant tertiary oil recovery after water
flooding. The authors observed that the recovery of initial oil at the start of the
CO2 injection declined as the rock permeability decreased and the initial water
In this paper, we present an audio-based event detection approach
shown to be effective when applied to the Sports broadcast data.
The main benefit of this approach is the ability to recognise patterns
that indicate high levels of crowd response which can be correlated to
The subjects then used an online system to perform the
experimental task. A copy of the text specification with
the example diagram was placed in front of the computer
for easy reference, and the UML experimental diagrams
were presented in random order for each subject. The
subjects gave a yes/no response to each presented
diagram, indicating whether they thought the diagram
matched the specification or not: two keys on the
keyboard were used for this input.
16 practice diagrams (randomly selected from the 21
experimental diagrams) were presented first.
We present a new approach to stochastic modeling of constraintbased grammars that is based on loglinear models and uses EM for estimation from unannotated data. The techniques are applied to an LFG grammar for German. Evaluation on an exact match task yields 86% precision for an ambiguity rate of 5.4, and 90% precision on a subcat frame match for an ambiguity rate of 25. Experimental comparison to training from a parsebank shows a 10% gain from EM training.