نتایج جستجو برای: vhr semantic labeling

تعداد نتایج: 162844  

2007
Mona T. Diab Alessandro Moschitti Daniele Pighin

In this paper, we present a system for Arabic semantic role labeling (SRL) based on SVMs and standard features. The system is evaluated on the released SEMEVAL 2007 development and test data. The results show an Fβ=1 score of 94.06 on argument boundary detection and an overall Fβ=1 score of 81.43 on the complete semantic role labeling task using gold parse trees.

2004
Vasin Punyakanok Dan Roth Wen-tau Yih Dav Zimak

We present a system for the semantic role labeling task. The system combines a machine learning technique with an inference procedure based on integer linear programming that supports the incorporation of linguistic and structural constraints into the decision process. The system is tested on the data provided in CoNLL2004 shared task on semantic role labeling and achieves very competitive resu...

2005
Tuong Thuy Vu Masashi Matsuoka Fumio Yamazaki

The focus of this study was to thoroughly exploit the capability of very high-resolution VHR satellite imagery such as Ikonos and QuickBird for disaster mitigation. An efficient automated methodology that detects damage was implemented to derive the rich information available from VHR satellite imagery. Consequently, the detected results and the VHR satellite imagery are attractively presented ...

Journal: :Remote Sensing 2021

Extracting water-bodies accurately is a great challenge from very high resolution (VHR) remote sensing imagery. The boundaries of water body are commonly hard to identify due the complex spectral mixtures caused by aquatic vegetation, distinct lake/river colors, silts near bank, shadows surrounding tall plants, and so on. diversity semantic information features need be increased for better extr...

Journal: :JAMA surgery 2014
Benjamin S Brooke David H Stone Jack L Cronenwett Brian Nolan Randall R DeMartino Todd A MacKenzie David C Goodman Philip P Goodney

IMPORTANCE Follow-up with a primary care provider (PCP) in addition to the surgical team is routinely recommended to patients discharged after major surgery despite no clear evidence that it improves outcomes. OBJECTIVE To test whether PCP follow-up is associated with lower 30-day readmission rates after open thoracic aortic aneurysm (TAA) repair and ventral hernia repair (VHR), surgical proc...

2009
Zheng Chen Heng Ji

In this paper, we present a Chinese event extraction system. We point out a language specific issue in Chinese trigger labeling, and then commit to discussing the contributions of lexical, syntactic and semantic features applied in trigger labeling and argument labeling. As a result, we achieved competitive performance, specifically, F-measure of 59.9 in trigger labeling and F-measure of 43.8 i...

2006
Olga Babko-Malaya Ann Bies Ann Taylor Szuting Yi Martha Palmer Mitchell P. Marcus Seth Kulick Libin Shen

The PropBank primarily adds semantic role labels to the syntactic constituents in the parsed trees of the Treebank. The goal is for automatic semantic role labeling to be able to use the domain of locality of a predicate in order to find its arguments. In principle, this is exactly what is wanted, but in practice the PropBank annotators often make choices that do not actually conform to the Tre...

1998
Michael Schröder Klaus Seidel Mihai Datcu

In this paper we present an intuitive way of semantic labeling of image content suited for query by image content from remote sensing image databases. The space of image content understanding is separated into a syntactic and a semantic space. The syntactic space contains objective, signaloriented classes of certain types of structures and the semantic space contains subjective, user-oriented c...

2004
Joon-Ho Lim Young-Sook Hwang So-Young Park Hae-Chang Rim

In this paper, we propose a semantic role labeling method using a maximum entropy model, which enables not only to exploit rich features but also to alleviate the data sparseness problem in a well-founded model. For applying the maximum entropy model to semantic role labeling, we take a incremental approach as follows: firstly, the semantic roles are assigned to the arguments in the immediate c...

Journal: :Computational Linguistics 2012
Hagen Fürstenau Mirella Lapata

Large-scale annotated corpora are a prerequisite to developing high-performance semantic role labeling systems. Unfortunately, such corpora are expensive to produce, limited in size, and may not be representative. Our work aims to reduce the annotation effort involved in creating resources for semantic role labeling via semi-supervised learning. The key idea of our approach is to find novel ins...

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