2 research outputs found
A Cloud-based Machine Learning Pipeline for the Efficient Extraction of Insights from Customer Reviews
The efficiency of natural language processing has improved dramatically with
the advent of machine learning models, particularly neural network-based
solutions. However, some tasks are still challenging, especially when
considering specific domains. In this paper, we present a cloud-based system
that can extract insights from customer reviews using machine learning methods
integrated into a pipeline. For topic modeling, our composite model uses
transformer-based neural networks designed for natural language processing,
vector embedding-based keyword extraction, and clustering. The elements of our
model have been integrated and further developed to meet better the
requirements of efficient information extraction, topic modeling of the
extracted information, and user needs. Furthermore, our system can achieve
better results than this task's existing topic modeling and keyword extraction
solutions. Our approach is validated and compared with other state-of-the-art
methods using publicly available datasets for benchmarking
Sulfur Ion Implantations Into Condensed CO2: Implications for Europa
The ubiquity of sulfur ions within the Jovian magnetosphere has led to suggestions that the implantation of these ions into the surface of Europa may lead to the formation of SO2. However, previous studies on the implantation of sulfur ions into H2O ice (the dominant species on the Europan surface) have failed to detect SO2 formation. Other studies concerned with similar implantations into CO2 ice, which is also known to exist on Europa, have offered seemingly conflicting results. In this letter, we describe the results of a study on the implantation of 290 keV S+ ions into condensed CO2 at 20 and 70 K. Our results demonstrate that SO2 is observed after implantation at 20 K, but not at the Europa-relevant temperature of 70 K. We conclude that this process is likely not a reasonable mechanism for SO2 formation on Europa, and that other mechanisms should be explored instead