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Sensors, Vol. 23, Pages 6367: An Interface Setup Optimization Method Using a Throughput Estimation Model for Concurrently Communicating Access Points in a Wireless Local Area Network
Shihao Fang The IEEE 802.11 wireless local-area network (WLAN) has been deployed around the globe as a major Internet access medium due to its low cost and high flexibility and capacity. Unfortunately, dense wireless networks can suffer from poor performance due to high levels of radio interference resulting from adjoining access points (APs). To address this problem, we studied the AP transmission power optimization method, which selects the maximum or minimum power supplied to each AP so that the average signal-to-interference ratio (SIR) among the concurrently communicating APs is maximized.However, this method requ...
Source: Sensors - July 13, 2023 Category: Biotechnology Authors: Fatema Akhter Nobuo Funabiki Ei Ei Htet Bin Wu Dezheng Kong Shihao Fang Tags: Article Source Type: research

Sensors, Vol. 22, Pages 8089: Towards East Asian Facial Expression Recognition in the Real World: A New Database and Deep Recognition Baseline
a Liu In recent years, the focus of facial expression recognition (FER) has gradually shifted from laboratory settings to challenging natural scenes. This requires a great deal of real-world facial expression data. However, most existing real-world databases are based on European-American cultures, and only one is for Asian cultures. This is mainly because the data on European-American expressions are more readily accessed and publicly available online. Owing to the diversity of huge data, FER in European-American cultures has recently developed rapidly. In contrast, the development of FER in Asian cultures is limited ...
Source: Sensors - October 22, 2022 Category: Biotechnology Authors: Shanshan Li Liang Guo Jianya Liu Tags: Article Source Type: research

Sensors, Vol. 22, Pages 1800: Estimating the Emotional Information in Japanese Songs Using Search Engines
hi Kiyota Several studies have shown that music can reduce unpleasant emotions. Based on the results of this research, several systems have been proposed to suggest songs that match the emotions of the audience. As a part of the system, we aim to develop a method that can infer the emotional value of a song from its Japanese lyrics with higher accuracy, by applying the technology of inferring the emotions expressed in sentences. In addition to matching with a basic emotion dictionary, we use a Web search engine to evaluate the sentiment of words that are not included in the dictionary. As a further improvement, as a...
Source: Sensors - February 24, 2022 Category: Biotechnology Authors: Akaishi Sakata Yoshinaga Nakano Koshi Kiyota Tags: Article Source Type: research