نتایج جستجو برای: gold extraction
تعداد نتایج: 247363 فیلتر نتایج به سال:
a simple, sensitive and selective method for solvent extraction and spectrophotemetric determination of lanthanum (ii) europium (iii), and cerium (iii) is described , the rare earth metals are extracted into chloroform solution of n-phenylbenzohydroxamic acid (pbha) at ph 9-10 various parameters are studied to optimize the extraction conditions. the molar absorptivity is found to increase from ...
We present a method of bilingual terminology extraction from parallel corpora and a few heuristics and experiments with improving the performance of the basic variant of the method. An evaluation is given using a small gold standard manually prepared for EnglishCzech language pair from DGT translation memory [1]. The bilingual terminology extraction (ABTE3) is available for several languages in...
Intrator (1990) proposed a feature extraction method that is related to recent statistical theory (Huber, 1985; Friedman, 1987), and is based on a biologically motivated model of neuronal plasticity (Bienenstock et al., 1982). This method has been recently applied to feature extraction in the context of recognizing 3D objects from single 2D views (Intrator and Gold, 1991). Here we describe expe...
Information extraction is concerned with the location of specific items in textual documents. Common process models for this task use ad-hoc testing methods against a gold standard. This paper presents an approach for the testdriven development of complex information extraction systems. We propose a process model for test-driven information extraction, and discuss its implementation using the r...
In this paper, we discuss practical and methodological issues of the creation of reference term lists (RTLs) for the evaluation of monolingual and bilingual term candidate extraction from comparable corpora in the domains of wind energy and mobile technology. These reference term lists are intended to serve as a ”gold standard” for the qualitative and quantitative evaluation of automatic term e...
As large on-line corpora become more prevalent, a number of attempts have been made to automatically extract thesaurus-like relations directly from text using knowledge poor methods. In the absence of any specific application, comparing the results of these attempts is difficult. Here we propose an evaluation method using gold standards, i.e., pre-existing hand-compiled resources, as a means of...
As large on-line corpora become more prevalent, a number of attempts have been made to automatically extract thesaurus-like relations directly from text using knowledge poor methods. In the absence of any speciic application, comparing the results of these attempts is diicult. Here we propose an evaluation method using gold standards , i.e., pre-existing hand-compiled resources, as a means of c...
Gold extraction and its commercialization in the Amazon region is mainly by rudimentary procedures. Therefore, during the process of extraction and recovery of this precious metal, large amounts of mercury vapors are thrown into the environment. This paper is an attempt to establish a correlation between the concentration of total mercury in the urine of workers at the gold shop in the Municipa...
We introduce an approach to the automatic generation of biological pathway diagrams from scientific literature. It is composed of the automatic extraction of single interaction relations which are typically found in the full text (rather than the abstract) of a scientific publication, and their subsequent integration into a complex pathway diagram. Our focus is here on relation extraction from ...
In this paper a method and a flexible tool for performing monolingual term extraction is presented, based on the use of syntactic analysis where information on parts-of-speech, syntactic functions and surface syntax tags can be utilised. The standard approaches to evaluating term extraction, namely by manual evaluation of the top n term candidates or by comparing to a gold standard consisting o...
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