Identity

2019 ◽  
pp. 117-142
Author(s):  
Georges Dicker
Keyword(s):  
Space Time ◽  
General View ◽  
Relative Identity ◽  
Time Path

This chapter expounds, formulates in analytical style, and defends Locke’s general view of identity. It interprets Locke’s puzzling statement that existing at the same time and place isn’t necessary for synchronic identity. It focuses mainly, following Locke, on diachronic identity. Locke never suggests that X is diachronically identical with Y iff they house the same substance-substratum; indeed his account of diachronic identity undermines the argument from change for substance-substratum. For Locke, X is diachronically identical with Y iff X is spatiotemporally continuous with Y, and every segment of the space-time path between X and Y is occupied either by something of the same sort as X or by something of the same sort as Y. This account applies to inanimate objects, plants, and animals. Its appeal to sortals makes it a version of the “relative identity” view. The chapter defends that view against the charge that it is self-contradictory.

scholarly journals The Visualization Representation of Space-Time-Path in The Space-Time-Cube

2021 ◽  
Vol 906 (1) ◽  
pp. 012030
Author(s):  
Bingbing Song ◽  
Yanlin Wang ◽  
Fang Li
Keyword(s):  
Three Dimensional ◽  
Temporal Changes ◽  
Space Time ◽  
Temporal Data ◽  
Processing Technologies ◽  
Spatial Object ◽  
Time Path ◽  
Visual Clutter ◽  
Spatio Temporal ◽  
The Impact

Abstract Map is a traditional visualization tool to represent distribution and interaction of spatial objects or spatial phenomenon. However, with the continuous development of acquisition and processing technologies for spatio-temporal data, traditional map can hardly meet the visualization requirement for this type of data. In other words, the dynamic information about spatial object or phenomenon cannot be expressed fully by traditional map. The Space-Time-Cube (STC), as a three-dimensional visualization environment, whose base represents the two-dimensional geographical space and whose height represents the temporal dimension, can simultaneously represent the spatial distribution as well as the temporal changes of spatio-temporal data. For some spatial object or phenomenon, its moving trajectory can be visualized in STC as a Space-Time-Path (STP), by which the speed and state of motion can be clearly reflected. Noticeably, the problem of visual clutter about STP is inevitably due to the complexity of three-dimensional visualization. In order to reduce the impact of visual clutter, this paper discusses different aspects about visualization representation of STP in the STC. The multiple scales representation and the multiple views display can promote interactive experience of users, and the application of different visual variables can help to represent different kinds of attribute information of STP. With the visualization of STP, spatio-temporal changes and attributive characters of spatial object or phenomenon can be represented and analysed.

scholarly journals An Analysis of Movement by Visualizing Spatio-Temporal Characteristics of Logdata

2019 ◽  
Vol 2 ◽  
pp. 1-3
Author(s):  
Nahye Cho ◽  
Youngok Kang
Keyword(s):  
Spatial Clustering ◽  
Space Time ◽  
Spatiotemporal Data ◽  
Measuring Time ◽  
Log Data ◽  
Temporal Characteristics ◽  
Time Path ◽  
Density Based Clustering ◽  
Spatio Temporal

<p><strong>Abstract.</strong> In this study, we visualized and analyzed log data in order to analyze the spatiotemporal characteristics of “moving” and “staying activities”. As a case study, we collected and preprocessed GPS log data generated by students participating in field activities. STP (Space-Time Path) was used to visualize movement logs. “Movement” and staying places were distinguished through density-based clustering, and the time “stayed” and activities performed at staying places were examined. The problem of over-measuring time at some staying places was examined. To resolve this, the 3D Density-Based Spatial Clustering of Application with Noise (DBSCAN) was used to more accurately measure the time spent at staying places. We propose 3D DBSCAN as methodology to accurately measure spatiotemporal data. We believe this method will remain effective even as this data becomes more numerous.</p>

A Study on the Space-time Path Analysis of COVID-19 Patients through Geovisualization of Spatiotemporal Data

2020 ◽  
Vol 20 (3) ◽  
pp. 13-22
Author(s):  
Jaseong Ahn ◽  
◽  
Jinmu Choi ◽  
Sangwon Lee ◽  
Jung Soo Ham
Keyword(s):  
Path Analysis ◽  
Space Time ◽  
Spatiotemporal Data ◽  
Time Path

Statistical Study of the Rotation Effect of Am Stars

1976 ◽  
Vol 32 ◽  
pp. 675-683
Author(s):  
Keiichi Kodaira
Keyword(s):  
Statistical Study ◽  
Rotation Velocity ◽  
General View ◽  
Slow Rotation ◽  
Rotation Effect

SummaryExcess of [m1] index of Am stars, relative to normal stars, is statistically found to be correlated with rotation velocity; the coefficient is estimated at ∆׀m1׀ /∆V(km/sec) ˜ - 0.0007 among Am stars. This result supports the general view that slow rotation is essential for Am phenomena.

Space, Time and Einstein

2002 ◽  
Author(s):  
J. B. Kennedy
Keyword(s):  
Space Time

Spinors and Space-Time

1984 ◽  
Author(s):  
Roger Penrose ◽  
Wolfgang Rindler
Keyword(s):  
Space Time
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