Št. zadetkov: 27
Video in druga učna gradiva
Oznake:
computer science;natural language processing
An analysis of the role that the ontology plays in determining verb meaning and semantic roles is presented. The discussion will contrast the current approaches to semantic role labeling using supervised machine learning methods to semantic approaches that rely on the ontology and verb sub-categoriz ...
Leto:
2011
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;machine learning
Current methods of drought assessment utilize drought indices, such as the standardized precipitation index and Palmer drought severity index, that rely on subjective thresholds and hence cannot be universally applied across different climatic regions. In addition, most of the existing drought indic ...
Leto:
2011
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;data mining;applications
The increase in demand for air traffic over the past several years has been accompanied by increased delays in the National Airspace System (NAS). The main causes of these delays have been weather and traffic volume, especially near airports. In this talk, I will use examples drawn from airport surf ...
Leto:
2011
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;machine learning;regression
Regression problems on massive data sets are ubiquitous in many application domains
including the Internet, earth and space sciences, and finances. Gaussian Process regression is a popular technique for modeling the input-output relations of a set of variables under the assumption that the weight ve ...
Leto:
2011
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;data mining;applications
We describe the development of a system for an automated, iterative, real‐time classification of transient events discovered in synoptic sky surveys. The system under development incorporates a number of Machine Learning techniques, mostly using Bayesian approaches, due to the sparse nature, heterog ...
Leto:
2011
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;data mining;time series analysis
Many processes in atmosphere-ocean science develop multiscale temporal and spatial
patterns, with complex underlying dynamics and time-dependent external forcings. Because of the possible advances in our understanding and prediction of climate phenomena, extracting that variability empirically from ...
Leto:
2011
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;text mining
With the advent and expansion of social networking, the amount of generated text
data has seen a sharp increase. In order to handle such a huge volume of text data, new and
improved text mining techniques are a necessity. One of the characteristics of text data that makes text mining difficult, is m ...
Leto:
2011
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;crowdsourcing;earth sciences
There is increasing pressure on the science community not only to understand how recent and projected changes in climate are likely to impact our global environment and the natural resources on which we depend, but also to design solutions to mitigate or cope with the likely impacts. Responding to t ...
Leto:
2011
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;data mining;statistical & consensus methods
Atmospheric Infrared Sounder (AIRS), a sensor aboard NASA’s Aqua satellite, has been collect-
ing temperatures, water vapor mass-mixing ratios, cloud fractions at various atmosphere pressure levels, and other atmospheric observations. AIRS level 2 data has a 45 km ground footprint with global covera ...
Leto:
2011
Vir:
videolectures.net
Video in druga učna gradiva
Oznake:
computer science;text mining
A fundamental problem for analysis of multidimensional text databases is efficient
and effective support of various kinds of online applications, such as summarizing the content
of text cells and comparing the contents across multiple text cells. In this paper, we propose
a new infrastructure called ...
Leto:
2011
Vir:
videolectures.net