Prediction and classification of chemical composition of ancient glass objects based on generalized Shapley functions

  • 0Shandong University of Science and Technology, Jinan, China.

|

|

Summary

This summary is machine-generated.

This study develops a method to identify ancient glass by analyzing its chemical composition, even after weathering. The approach helps accurately categorize artifacts, aiding archaeological research.

Area Of Science

  • Archaeometry
  • Materials Science
  • Analytical Chemistry

Background

  • Ancient glass artifacts undergo chemical changes due to burial environments and weathering.
  • These alterations complicate accurate identification and classification.
  • Understanding chemical composition is crucial for archaeological provenance studies.

Purpose Of The Study

  • To predict and identify the chemical composition of ancient glass products.
  • To establish the relationship between weathering and glass type, decoration, and color.
  • To develop a method for determining chemical composition before weathering for accurate artifact classification.

Main Methods

  • Multivariate statistical ANOVA test to analyze factors influencing chemical composition.
  • Data imputation for missing values and distance discrimination for weathering assessment.
  • Gray prediction modeling and generalized Shapley function for composition analysis.

Main Results

  • Identified laws governing chemical composition changes in weathered and unweathered ancient glass.
  • Successfully predicted pre-weathering chemical composition using gray prediction.
  • Quantified correlations and differences between various indicators and chemical compositions.

Conclusions

  • The proposed scheme effectively addresses challenges in archaeological category judgment.
  • Accurate chemical composition analysis aids in the identification of ancient glass.
  • This method significantly contributes to advancing archaeological research and artifact analysis.

Related Concept Videos

Molecular Models 02:00

38.3K

Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.

Skeletal Model

Simpler two-dimensional representations of chemical compounds are accomplished using skeletal models. The illustration shows only the molecular framework or bonds without explicitly showing the atoms. In this representation, many of the carbon atoms...

Predicting Molecular Geometry 02:27

34.3K

VSEPR Theory for Determination of Electron Pair Geometries

The following procedure uses VSEPR theory to determine the electron pair geometries and the molecular structures:


Write the Lewis structure of the molecule or polyatomic ion.
Count the number of electron groups (lone pairs and bonds) around the central atom. A single, double, or triple bond counts as one region of electron density.
Identify the electron-pair geometry based on the number of electron groups: linear, trigonal planar,...

Glassware Calibration 01:11

230

Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...

Classifying Matter by Composition 03:35

71.1K

Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures. 
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated. 
A mixture is composed of two or...

Qualitative Analysis 01:10

246

Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
There are two main approaches to qualitative analysis:...