منابع مشابه
Automated Coding of Open-Ended Survey Responses
Background: Manual coding of open-ended survey responses is time-consuming, expensive, and error-prone. However, this task can be recast as a multi-label text classification problem, to which natural language processing and machine learning techniques can be applied. Aim: The aim of this work is to assess the suitability of various machine learning techniques to the problem of automated coding ...
متن کاملk-resonance of open-ended carbon nanotubes
An open-ended carbon nanotube or a tubule is a part of some regular hexagonal tessellation of a cylinder. A tubule T is said to be k-resonant if for every k (or fewer) pairwise disjoint hexagons, the subgraph obtained from T by deleting all the vertices of these hexagons must have a Kekule structure (perfect matching) or must be empty. The 1-resonant tubules can be constructed by an approach pr...
متن کاملAutomated Coding of Open-ended Surveys: Technical and Ethical Issues
This paper presents some technical and ethical issues arising from the use of automated methods to solve a typical social science problem: the coding of surveys including answers to open-ended questions. Coding an open-ended survey, which may include thousands of interviews, means to assign symbolic predefined labels to its answers according to their meaning. The increasing amount of informatio...
متن کاملCO2 adsorption on the surface and open ended of Single wall carbon nanotubes (SWCNTs): A Comparative study
Adsorption of CO2 on the surface of Single-wall zigzag (5,0) and armchair (4,4) carbon nanotubes (SWCNTs) were studied through using density functional theory (DFT) calculations. Optimizations of geometric were performed at the B3PW91 level of 6-311++G** method standard basis set using GAUSSIAN 03 package of program [1]. Structural models were optimized and adsorption energies, band gap, charge...
متن کاملCO2 adsorption on the surface and open ended of Single wall carbon nanotubes (SWCNTs): A Comparative study
Adsorption of CO2 on the surface of Single-wall zigzag (5,0) and armchair (4,4) carbon nanotubes (SWCNTs) were studied through using density functional theory (DFT) calculations. Optimizations of geometric were performed at the B3PW91 level of 6-311++G** method standard basis set using GAUSSIAN 03 package of program [1]. Structural models were optimized and adsorption energies, band gap, charge...
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ژورنال
عنوان ژورنال: Nature
سال: 1962
ISSN: 0028-0836,1476-4687
DOI: 10.1038/1931072a0