historical sequences
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2021 ◽  
Vol 16 (1) ◽  
pp. 1-21
Author(s):  
Jianliang Gao ◽  
Xiaoting Ying ◽  
Cong Xu ◽  
Jianxin Wang ◽  
Shichao Zhang ◽  
...  

The stock market investors aim at maximizing their investment returns. Stock recommendation task is to recommend stocks with higher return ratios for the investors. Most stock prediction methods study the historical sequence patterns to predict stock trend or price in the near future. In fact, the future price of a stock is correlated not only with its historical price, but also with other stocks. In this article, we take into account the relationships between stocks (corporations) by stock relation graph. Furthermore, we propose a Time-aware Relational Attention Network (TRAN) for graph-based stock recommendation according to return ratio ranking. In TRAN, the time-aware relational attention mechanism is designed to capture time-varying correlation strengths between stocks by the interaction of historical sequences and stock description documents. With the dynamic strengths, the nodes of the stock relation graph aggregate the features of neighbor stock nodes by graph convolution operation. For a given group of stocks, the proposed TRAN model can output the ranking results of stocks according to their return ratios. The experimental results on several real-world datasets demonstrate the effectiveness of our TRAN for stock recommendation.


2021 ◽  
Vol 35 (2) ◽  
pp. 437-444
Author(s):  
Wahyu Tyas PRAMONO ◽  
◽  
Swastika Dhesti ANGGRIANI ◽  
Nanda Harda Pratama MEIJI ◽  
Norsidah UJANG ◽  
...  

Kajoetangan or Kayutangan kampong heritage is a new tourist spot in Malang that emphasizes the empowerment of local communities in realizing settlement-based sustainable tourism that existed during the colonial era which was composed of dozens of Indische architecture in the late 19th to early 20th centuries. Kayutangan heritage villages are composed of settlements with a small size with access in the form of a small footpath combined with a mural and various outdoor plants. The houses in the area have not changed for nearly a hundred years, which have been passed down from generation to generation. Descriptive qualitative method is used in this research by combining the data obtained based on in-depth interviews, survey and combined with literature studies. Purpose of this research is to explore historical sequences and processes of sustainable tourism management controlled by local residents with financial assistance from various partners. The results of the study show that the role of local communities is quite positive in efforts to support tourists either by being directly or indirectly involved by building supporting facilities for core tourism such as culinary spots and souvenirs. Collaboration with several government agencies, universities and banks also makes the additions and directions in making and using additional facilities more structured.


2021 ◽  
Vol 5 (1) ◽  
pp. 60-72
Author(s):  
V. V. Vinokurov

The paper treats the topic of hermeticism — an esoteric tradition of teachings — with the view to its origins and varying interpretations. In setting research objectives, the text aims at identifying the common structural foundations of myths and ideas of the hermetic genesis and to establish the main vectors of the formation and transformation of esoteric teachings presented in the spiritual domain and reflected in the material culture of Western Europe from the 4th century BC to the present. For the needs of such a comparative study that embraces philosophical, religious and historical phenomena of culture, the following methods are used. As it is mostly the texts that are analyzed, the methodological framework consists of the interpretation of texts and artifacts – all along the line of presentation of historical sequences, of their recursion, of structural and functional aspects. The sources included not only texts, mathematical operations and chemical formulas of previously known alchemic artifacts are also introduced into the comprehensive analysis. The examination of cultural phenomena leads to the systematization of religious origins, historical and philosophical traditions and scientific achievements that underlie the formation of hermeticism. This structuralisation is possible due to the tools for the analysis of the hermetic body developed in this text. The mapping of the historical development of hermeticism is proposed in a three-level paradigm model based on the image of the Thrice-Great Hermes. It is concluded that the basis of the image of Hermes is the invariant of the historical three-level model of cognition of esoteric teachings, for descriptions of which the terms of ABC — paradigm are introduced. Each of the Hermea has own disciplinary paradigm. The first level of Hermes I, the author of cosmogonic visions, A — paradigm, is represented by inner visions (revelations of the cosmic mind or daimonic visions), thus forming the cultural level of mythology, theology. The level of Hermes II, the founder of writing and counting, lies in the realm of concepts of visions ‒ e.g. the Platonic philosophy, geometry, mathematics (B — paradigm). The third level (C — paradigm) is represented by texts and alchemical artifacts (Alexandrian crystal) of Hermes III, the founder of the art of healing and chemistry, that further embodied in empirical sciences, chemistry and astronomy, as well as ancient technological knowledge of the production of metals, glass and dyes. In general, all hermetic disciplines and practices emerge on the basis of this three-level paradigm.


2021 ◽  
Author(s):  
Hal Caswell ◽  
Xi Song

Background: Kinship models generally assume time-invariant demographic rates, and compute the kinship structures implied by those rates. It is important to compute the consequences of time variation in demographic rates for kinship stuctures. Objectives: Our goal is to develop a matrix model for the dynamics of kinship networks subject to arbitrary temporal variation in survival, fertility, and population structure. Methods: We develop a system of equations for the dynamics of the age structure of each type of kin of a Focal individual. The matrices describing survival and fertility vary with time. The initial conditions in the time-invariant model are replaced with a set of boundary conditions for initial time and initial age. Results: The time-varying model maintains the network structure of the time-invariant model. In addition to the results of the time-invariant model, it provides kinship structures by period, cohort, and age. It applies equally to historical sequences of past rates and to projections of future rates. As an illustration, we analyze the kinship structure of Sweden from 1891 to 2120. Contribution: The time-varying kinship model makes it possible to analyze the consequences of changing demographic rates, in the past or the future. It is easily computable, requires no simulations, and is readily extended to include additional, more distant relatives in the kinship network. The method can also be used to show the growth of families, lineages, and dynasties in populations across time and place and between social groups.


2021 ◽  
Vol 03 (03) ◽  
pp. 483-497
Author(s):  
Riyam Saleh ABBAS

The research concerned me to study the concept of fantasy in contemporary environmental sculptural formation، and the research contained the methodological framework for the research starting with the problem that raises many questions about the changes in the style of implementing sculptures that ended with the following question: Fantasia in contemporary environmental sculptural formation? As for the importance of the research، it lies in the fact that it sheds light on fantasy topics as conceptual structures in contemporary environmental sculpture، which constitutes a new reading of the sculptural texts of that period with its historical sequences، and in order to solve the research problem، the researcher sought to set the goal of the research to study the current، which is to identify fantasy in sculptural formation It also included the boundaries of the research that are defined objectively by the environmental sculptural product، and spatially: America، Europe، and temporal: (1930-2012)، after which the researcher enumerated the research population of (10) and then selected the research sample from this community that amounted to (3) A model and after that the researcher analyzed the sample in light of these results، the researcher reached a set of conclusions، the most important of which are: The contemporary artist employed many techniques and methods in presenting fantasy concepts، in a way that serves the sculptural text and intensifies its artistic and aesthetic connotations، followed by the recommendations and proposals that came to it The current study.


2020 ◽  
Vol 38 (1) ◽  
pp. 1-15
Author(s):  
John D. Skrentny

The concept of “region” is widespread in the social sciences but rarely theorized. I argue here that region is a multivalent concept similar to ethnicity, nation, and race. Building on the work of Bourdieu, Brubaker, and Griswold, I show that all four concepts can be understood as both “categories of analysis” and “categories of practice.” Moreover, all four have fundamental similarities regarding (1) ontology and relation to space; (2) historical sequences and relation to time; and (3) protean boundaries that may change with social scientists’ research questions. Among the payoffs to this approach are improved precision and appropriateness of regional boundaries when social scientists use regions as independent or control variables and greater appreciation for how regions, as categories of practice, are made over time.


2019 ◽  
Vol 85 (1) ◽  
pp. 113-131
Author(s):  
Mark F. Seeman ◽  
Amanda N. Colucci ◽  
Charles Fulk

Hunter-gatherer societies held sway in midwestern North America for at least 11,000 years. Those at the end of this period were more complex and less mobile, and they supported larger populations than those at the beginning, but there are relatively few general conceptions as to when and how this took place. Here we examine the fit of gradual, one-way social change as it relates to the size and shape of lithic supply zones for Upper Mercer and Flint Ridge flint as well as the inflow of exotic materials. Our results show no singular cline either in the size of successive lithic supply zones or in the inflow of exotic materials. Hunter-gatherer societies can make remarkable behavioral changes through time and not necessarily in any consistent (unilineal) direction. Such differences impose more contingency—and less directionality—into particular historical sequences.


2019 ◽  
Vol 116 (25) ◽  
pp. 12226-12231 ◽  
Author(s):  
Alison K. Carter ◽  
Miriam T. Stark ◽  
Seth Quintus ◽  
Yijie Zhuang ◽  
Hong Wang ◽  
...  

The 9th–15th century Angkorian state was Southeast Asia’s greatest premodern empire and Angkor Wat in the World Heritage site of Angkor is one of its largest religious monuments. Here we use excavation and chronometric data from three field seasons at Angkor Wat to understand the decline and reorganization of the Angkorian Empire, which was a more protracted and complex process than historians imagined. Excavation data and Bayesian modeling on a corpus of 16 radiocarbon dates in particular demand a revised chronology for the Angkor Wat landscape. It was initially in use from the 11th century CE with subsequent habitation until the 13th century CE. Following this period, there is a gap in our dates, which we hypothesize signifies a change in the use of the occupation mounds during this period. However, Angkor Wat was never completely abandoned, as the dates suggest that the mounds were in use again in the late 14th–early 15th centuries until the 17th or 18th centuries CE. This break in dates points toward a reorganization of Angkor Wat’s enclosure space, but not during the historically recorded 15th century collapse. Our excavation data are consistent with multiple lines of evidence demonstrating the region’s continued ideological importance and residential use, even after the collapse and shift southward of the polity’s capital. We argue that fine-grained chronological analysis is critical to building local historical sequences and illustrate how such granularity adds nuance to how we interpret the tempo of organizational change before, during, and after the decline of Angkor.


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