Incorporating dynamic flight network in SEIR to model mobility between populationsApplied Network Science - Tập 6 - Trang 1-24 - 2021
Xiaoye Ding, Shenyang Huang, Abby Leung, Reihaneh Rabbany
Current efforts of modelling COVID-19 are often based on the standard compartmental models such as SEIR and their variations. As pre-symptomatic and asymptomatic cases can spread the disease between populations through travel, it is important to incorporate mobility between populations into the epidemiological modelling. In this work, we propose to modify the commonly-used SEIR model to account fo...... hiện toàn bộ
Fact-checking strategies to limit urban legends spreading in a segregated societyApplied Network Science - Tập 4 - Trang 1-19 - 2019
Marcella Tambuscio, Giancarlo Ruffo
We propose a framework to study the spreading of urban legends, i.e., false stories that become persistent in a local popular culture, where social groups are naturally segregated by virtue of many (both mutable and immutable) attributes. The goal of this work is identifying and testing new strategies to restrain the dissemination of false information, focusing on the role of network polarization....... hiện toàn bộ
Khám phá dựa trên đồ thị và phân tích phân cụm các không gian ngữ nghĩa Dịch bởi AI Applied Network Science - Tập 4 Số 1 - Trang 1-26 - 2019
Veremyev, Alexander, Semenov, Alexander, Pasiliao, Eduardo L., Boginski, Vladimir
Mục tiêu của nghiên cứu này là nhằm chứng minh cách mà các công cụ và khái niệm trong khoa học mạng và lý thuyết đồ thị có thể được sử dụng hiệu quả để khám phá và so sánh các không gian ngữ nghĩa của các vector từ và cơ sở dữ liệu từ vựng. Cụ thể, chúng tôi xây dựng các mạng ngữ nghĩa dựa trên các biểu diễn word2vec của các từ, được "học" từ các tập văn bản lớn (tin tức Google, đánh giá Amazon), ...... hiện toàn bộ
#khoa học mạng #lý thuyết đồ thị #mạng ngữ nghĩa #từ điển học #máy học
Modeling the structure and dynamics of transnational illicit networks: an application to cigarette traffickingApplied Network Science - Tập 5 Số 1 - 2020
Cecilia Meneghini, Alberto Aziani, Marco Dugato
AbstractMany illicit markets are transnational in nature: illicit products are consumed in a country different from the one in which they were produced. Therefore, reconstructing the trafficking network and estimating the size of cross-border illicit flows are crucial steps to gain better understanding of these crimes and to enforce actions aimed at countering them...... hiện toàn bộ
Community structure based on circular flow in a large-scale transaction networkApplied Network Science - Tập 4 - Trang 1-23 - 2019
Yuichi Kichikawa, Hiroshi Iyetomi, Takashi Iino, Hiroyasu Inoue
The objective of this study is to shed new light on the industrial flow structure embedded in microscopic supplier-buyer relations. We first construct directed networks from actual data from interfirm transaction relations in Japan; as one example, the dataset compiled by the Tokyo Shoko Research, Ltd. in 2016 contains five million links between one million firms. Then, we analyze the industrial f...... hiện toàn bộ
Improving accuracy of expected frequency of uncertain roles based on efficient ensemblingApplied Network Science - Tập 7 - Trang 1-21 - 2022
Soshi Naito, Takayasu Fushimi
This study tackles the problem of extracting the node roles in uncertain graphs based on network motifs. Uncertain graphs are useful for modeling information diffusion phenomena because the presence or absence of edges is stochastically determined. In such an uncertain graph, the node role also changes stochastically according to the presence or absence of edges, so approximate calculation using a...... hiện toàn bộ
Ego-zones: non-symmetric dependencies reveal network groups with large and dense overlapsApplied Network Science - Tập 4 Số 1 - 2019
Miloš Kudělka, Eliška Ochodková, Šárka Zehnalová, Jakub Plesnik
AbstractThe existence of groups of nodes with common characteristics and the relationships between these groups are important factors influencing the structures of social, technological, biological, and other networks. Uncovering such groups and the relationships between them is, therefore, necessary for understanding these structures. Groups can either be found by...... hiện toàn bộ