Comparison of Features in Content Coverage and Presentation of Complex Numbers in Textbooks of China, Japan and Singapore

Chen, Yuelan; Jun, Xie

doi:10.1142/9789814713955_0002

Cited by 2 publications

(2 citation statements)

References 127 publications

(176 reference statements)

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“…The selection of vertex weights is an important aspect in the terrain simplification algorithm for irregular triangulated networks, and this study proposes a terrain simplification algorithm based on the average features of the terrain. [17] Secondly, the data elevation points are judged to be deleted or not according to the current data level threshold, and if they are deleted, the local triangulation network is re-profiled and the topological relationships between the current data points are re-recorded at the same time.…”

Section: Terrain Lod Model Constructionmentioning

confidence: 99%

Modeling technology for fusion of massive strip 3D terrain and feature models

Li,

Feng,

et al. 2023

International Conference on Remote Sensing, Mapping, and Geographic Systems (RSMG 2023)

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In order to solve the problem that traditional GIS methods are difficult to handle massive data, complex spatial relationships and accurate geographic phenomenon modeling. By fusing terrain and feature models, geographic phenomena can be efficiently and accurately represented and analyzed to provide a reliable basis for decision making.This paper proposes a fusion modeling technique for massive strip 3D terrain and feature models, aiming to solve the problem of effective fusion and modeling of 3D terrain and feature models for strip data in large-scale spatial data processing. Based on open-source geographic information technology, the traditional method is designed to unify and model 2D vector data, raster data, BIM data and 3D data from different sources, formats and scales to form a standardized spatial data set, in response to the problems of high computational complexity, large storage requirements and data redundancy in processing massive data. For the characteristics of strip data and 3D terrain and feature models, geometric matching and semantic matching methods are used to fuse and process vector data representing the same entity with different attribute information and spatial location information to solve the problem of data redundancy and duplication; it is used to describe the different levels and precision of spatial data, and the appropriate data precision can be flexibly selected in the fusion modeling process, so as to achieve a balance between data quality and calculation The purpose of balancing data quality and computational efficiency. Based on LOD hierarchical detail technology fusion processing of terrain-independent BIM models, terrain-dependent fusion of linear 3D feature models, to achieve the surface fitting of multi-source 3D model data in a specific scene, to improve the 3D scene display effect.In terms of data processing efficiency: traditional GIS methods may face bottlenecks in computation and storage when dealing with massive data. The efficiency of data processing can be improved by adopting fusion modeling technology for massive data. For spatial relationship accuracy: fusion modeling technology can capture the complex spatial relationships between terrain and features more accurately, providing more accurate simulation and analysis results.

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Section: Terrain Lod Model Constructionmentioning

confidence: 99%

Modeling technology for fusion of massive strip 3D terrain and feature models

Li,

Feng,

et al. 2023

International Conference on Remote Sensing, Mapping, and Geographic Systems (RSMG 2023)

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“…As the main concern of this study was to examine cultural representations in an Iranian EFL textbook, in line with Chen (2005), I have sought not only to explore why a particular image is required pedagogically, and if it is possible to do without it, but also to find out whether the image has successfully accomplished one of its main missions, which is making students critically mature and culturally aware through exposing them to multicultural, global, multifaceted resources. Finally, it can be argued that although the two studies by Weninger and Kiss (2013) and Chen (2010) analysed the cultural representations in English as a second/foreign language textbooks through analysing textbook elements by implementing the semiotic approach, none of them probed into the image-text-task complementarity from the vantage point of students, teachers, and teacher educators, who are the key participants in the educational system, the main consumers of textbooks, and thus researchers should consider their perspectives as the main agents in the use of textbooks and the analysis of their contents.…”

Section: Introductionmentioning

confidence: 99%

‘Should textbook images be merely decorative?’: Cultural representations in the Iranian EFL national textbook from the semiotic approach perspective

Derakhshan

2021

Language Teaching Research

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Studies examining culture representation in language textbooks have rarely adopted the semiotic approach, despite its potential for presenting and (re)creating cultural meanings at their various levels (i.e. cultural, intercultural, multicultural, and transcultural) in the co-instantiations of texts, tasks, and images. To address this issue, a qualitative analysis, embarking on the Peircean semiotic theory, was applied on the text-image-task semiotic relationship. It explored its potential for constructing and reconstructing cultural meanings relative to the Iranian national English as a foreign language (EFL) textbook, Vision 1, from the perspectives of Iranian EFL students, teachers, and teacher educators. Content and thematic analyses of the interview records revealed three themes: first, the co-instantiation of the image and text was indexical, cultural awareness and connotations were almost untouched; second, the textual and visual components driving intercultural meanings and interpretations were not in accordance with the tasks; and, third, some alternative more culturally engaging images were provided by the interviewees. On the whole, the findings confirmed the previous findings that the discourse of this brand-new Iranian localized EFL textbook leaves little space to raise cultural awareness for its users. Based on the findings, a dynamic model for evaluating cultural representations in textbooks is suggested, hoping to show how EFL textbooks can be developed, implemented, and received more effectively in instructional settings.

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Comparison of Features in Content Coverage and Presentation of Complex Numbers in Textbooks of China, Japan and Singapore

Cited by 2 publications

References 127 publications

Modeling technology for fusion of massive strip 3D terrain and feature models

Modeling technology for fusion of massive strip 3D terrain and feature models

‘Should textbook images be merely decorative?’: Cultural representations in the Iranian EFL national textbook from the semiotic approach perspective

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