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Chemical aspects of gel extraction
Chemical Engineering Science, 1986Abstract Dilute aqueous solutions can be effectively concentrated with crosslinked partially hydrolysed polyacrylamide gels. Because the gels are near their critical point, they can be regenerated with small changes in pH. The selectivity of concentrating nonelectrolyte solutes can be adjusted by changes in gel crosslinking; the selectivity of ...
Gerald P. Andrews +2 more
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Weakly Supervised Domain Adaptation for Aspect Extraction via Multilevel Interaction Transfer
IEEE Transactions on Neural Networks and Learning Systems, 2021Fine-grained aspect term extraction is an essential subtask in aspect-based opinion analysis. It aims to identify the aspect terms (also known as opinion targets) of a product or service in each sentence.
Tao Liang, Wenya Wang, Fengmao Lv
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TADC: A Topic-Aware Dynamic Convolutional Neural Network for Aspect Extraction
IEEE Transactions on Neural Networks and Learning Systems, 2021Aspect extraction is one of the key tasks in fine-grained sentiment analysis. This task aims to identify explicit opinion targets from user-generated documents.
Zusheng Zhang +4 more
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TECHNICAL ASPECTS OF EXTRACTIVE ENZYME PURIFICATION
Annals of the New York Academy of Sciences, 1981We see the advantages of extraction processes for large-scale enzyme isolation and purification in the high capacity of the method, savings in process time and energy, high activity yields and the possibilities for continuous processing at all stages.
Horst Schütte +3 more
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Practical Aspects of In-Situ Electrokinetic Extraction
Journal of Environmental Engineering, 1999Electrokinetic extraction in an emerging technology that can be used to remove contaminants from heterogeneous fine-grained soils in situ. Contaminants in the subsurface are removed by the application of a direct-current electric field across the contaminated soil.
Alshawabkeh, AN, Yeung, AT, Bricka, MR
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BERT-based implicit aspect extraction
2021 IEEE 3rd International Conference on Civil Aviation Safety and Information Technology (ICCASIT), 2021The traditional implicit aspect extraction methods require too much manual feature engineering, which are inefficient when processing large-scale data. To address the problem, BERT-based model with different kinds of classifiers is proposed.
Lanlan Wang, C. Yao, Xu Li, Xiaoqiang Yu
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Noise Robustness in Aspect Extraction Task [PDF]
2018 International Conference on Artificial Intelligence Applications and Innovations (IC-AIAI), 2018 Aspect extraction from user reviews is one of the sources to make dialog systems, which are on the rise now. A typical user of a conversation system has no time to check the spelling or grammar in his or her utterances. Due to that user utterances contain typos and spelling errors, so the noise robustness should be considered as a significant feature ...
Taras Khakhulin, Valentin Malykh
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Development of a two-step LDA based aspect extraction technique for review summarization
, 2021Summarization of online reviews by customers is a popular practice for evaluation of products or services. As the reviews accumulate, the large size and the unstructured nature of the reviews hinder manual summarization.
S. Das, Riki Murakami, B. Chakraborty
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Some aspects of synergic extractions with chelating extractants
Journal of Radioanalytical Chemistry, 1979With the exception of the formation of coordinatively saturated adducts, synergic extractions using chelating extractants are reviewed. Emphasis is laid on less common synergic systems. These include the formation of adducts containing also inorganic anions, extraction of chelates in the presence of bulky organic cations, influence of various anions on
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Physicochemical aspects of fluid extraction
Fluid Phase Equilibria, 1983Abstract The present review considers some physicochemical properties of fluid mixtures that are important for fluid extraction, supercritical fluid chromatography (SFC) and other applications. Firstly, the most important types of phase diagrams involving liquid-gas, liquid-liquid and gas-gas equilibria are treated.
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