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Topic Review

Site Sesselfelsgrotte

Both the nature and the scope of fire use by Neanderthals in Europe are often debated, as some scholars advocate limited use, without the capability to produce fire at will and with full reliance on natural fire occurrences, while others suggest advanced use, including fire-production knowledge and the application of pyrotechnologies.

510
25 Oct 2023

Topic Review

The Nara Palace Site

The Nara period in Japan was a short but volatile historical era that left behind a huge amount of cultural property across the country. Most of the related sites have been recognized by UNESCO as deserving of World Cultural Heritage status or are classified by the Japanese government as particularly important national heritage. This is especially true of the Nara Palace site, with its outstanding conservation achievements and reconstruction of Japanese architectural heritage.

503
11 Jan 2024

Topic Review

Drone Photogrammetry for Underwater Cutural Heritage Documentation

Underwater cultural heritage (UCH) is an irreplaceable resource with intrinsic value that requires preservation, documentation, and safeguarding. Documentation is fundamental to increasing UCH resilience, providing a basis for monitoring, conservation, and management. Advanced UCH documentation and virtualization technologies are increasingly important for dissemination and visualization purposes, domain expert study, replica reproduction, degradation monitoring, and all other outcomes after a metric survey of cultural heritage (CH). Among the different metric documentation techniques, underwater photogrammetry is the most widely used for UCH documentation. It is a non-destructive and relatively inexpensive method that can produce high-resolution 3D models and 2D orthomosaics of underwater sites and artifacts. However, underwater photogrammetry is challenged by the different optical properties of water, light penetration, visibility and suspension, radiometric issues, and environmental drawbacks that make underwater documentation difficult.

484
11 Mar 2024

Topic Review

Profiling (Non-)Nascent Entrepreneurs

System-level feature sets with four machine learning modeling algorithms: multivariate adaptive regression spline (MARS), support vector machine (SVM), random forest (RF), and AdaBoost.

481
01 Apr 2022

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