Zhongwen Guo

Zhongwen Guo
Ocean University of China | OUC

About

126
Publications
24,612
Reads
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1,537
Citations
Citations since 2016
45 Research Items
1042 Citations
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2016201720182019202020212022050100150

Publications

Publications (126)
Article
Full-text available
Edge Computing has shown significant potential in the development of IoT. However, most existing constrained intelligent edge devices cannot provide sufficient resources for edge computing. Such as the existing acoustic 2-D tracking approaches for portable devices require at least two microphones, incapable for universal devices. In this paper, we...
Article
The next-generation of wireless network 6G is envisioned to achieve seamless global full coverage, and provide ultra-high-speed and extreme low delay network to connect the Internet of Everything (IoE) on the Earth. To this end, as the space-air-ground-underwater integrated network is a solid foundation of 6G, it is critical to develop reliable and...
Article
Full-text available
Freehand exercises help improve physical fitness without any requirements for devices or places. Existing fitness assistant systems are typically restricted to wearable devices or exercising at specific positions, compromising the ubiquitous availability of freehand exercises. In this paper, we develop MobiFit, a contactless freehand exercise assis...
Article
Full-text available
Short-term prediction of fishing effort distributions will guide fishery management in a dynamic way. However, it meets two unique challenges: the randomness of fishers’ behaviors and the diversity of marine meteorology such as sea storms in the short period. This study proposes short-term prediction system of fishing effort distribution by mining...
Article
Full-text available
An efficient and low-cost communication system has great significance in maritime communication, but it faces enormous challenges because of high communication costs, incomplete communication infrastructure, and inefficient routing algorithms. Delay Tolerant Vessel Networks (DTVNs), which can create low-cost communication opportunities among vessel...
Conference Paper
Full-text available
Freehand exercises help improve physical fitness without any requirements on devices, or places (e.g., gyms). Existing fitness assistant systems require wearing smart devices or exercising at specific positions, which compromises the ubiquitous availability of freehand exercises. This work proposes MobiFit, a contactless freehand exercise assistant...
Conference Paper
Full-text available
An efficient and low-cost communication system has great significance in the field of maritime communication, but it faces great challenges because of high communication cost, incomplete communication infrastructure, and inefficient data delivery algorithms. In this paper, we develop a long-term accurate trajectory prediction model by Bidirec-tiona...
Chapter
Full-text available
An efficient and low-cost communication system has great significance in the field of maritime communication, but it faces great challenges because of high communication cost, incomplete communication infrastructure, and inefficient data delivery algorithms. In this paper, we develop a long-term accurate trajectory prediction model by Bidirectional...
Article
Full-text available
With the rapid development of marine IoT (Internet of Things), ocean MDTN (Mobile Delay Tolerant Network) has become a research hot spot. Long-term trajectory prediction is a key issue in MDTN. There are no long-term fine-grained trajectory prediction methods proposed for ocean vessels because a vessel's mobility pattern lacks map topology support...
Article
Full-text available
Localization has always been an essential application of Underwater Acoustic Sensor Networks(UASNs), which plays an important role in routing strategies design, node recycling, and so on. The complex ocean condition, prior infrastructure deployment, and time synchronization among beacons challenge the application of UASNs localization. To solve the...
Article
Full-text available
Indoor pedestrian tracking has been identified as a key technology for indoor location-based services such as emergency locating, advertising, and gaming. However, existing smartphone-based approaches to pedestrian tracking in indoor environments have various limitations including a high cost of infrastructure constructing, labor-intensive fingerpr...
Conference Paper
Full-text available
Low-cost large-scale maritime communication problem has not been properly solved, due to the high cost of ocean base station construction and satellite communication. D2D communication, which make full use of spectrum resources and create low-cost communication opportunities among devices has recently attracted considerable attention. In this paper...
Conference Paper
Social platforms such as Weibo, Facebook and Twitter have become a part of daily life, where people can exchange information. In this process, people's behaviors often influence each other. Social influence prediction has become one of the hot issues at present. In this paper, NNMLInf social influence prediction model is constructed based on neural...
Article
Full-text available
Vessel Monitoring System (VMS) provides a new opportunity for quantified fishing research. Many approaches have been proposed to recognize fishing activities with VMS trajectories based on the types of fishing vessels. However, one research problem is still calling for solutions, how to identify the fishing vessel type based on only VMS trajectorie...
Article
Full-text available
Existing extended one-versus-rest multi-label support vector machine (OVR-ESVM) adopting non-linear kernel is seriously restricted by excessive training time when it is applied to large-scale data set. In order to overcome this problem, we improve the OVR-ESVM by introducing the principle of approximate extreme points and new approximate ranking lo...
Article
Full-text available
Localization is a critical issue for Underwater Acoustic Sensor Networks (UASNs). Existing localization algorithms mainly focus on localizing unknown nodes (location-unaware) by measuring their distances to beacon nodes (location-aware), whereas ignoring additional challenges posed by harsh underwater environments. Especially, underwater nodes move...
Article
Full-text available
Under the framework of multi-label classification, the excessive training time restricts the availability of non-linear kernel SVM (Support Vector Machine) classification algorithm on large-scale data sets. To solve this problem, this paper provides a fast multi-label SVM classification algorithm based on approximate extreme points (AEMLSVM). First...
Article
Full-text available
Localization is one of the critical services in Underwater Acoustic Sensor Networks (UASNs). Due to harsh underwater environments, the nodes often move with currents continuously. Consequently, the acoustic signals usually propagate with varying speeds in non-straight lines and the noise levels change frequently with the motion of the nodes. These...
Conference Paper
Full-text available
Trajectory prediction is a key problem in MDTN(Mobile Delay Tolerant Network). Because Vessel’s moving pattern is in free space and easily influenced by the fish moratorium, tide, weather, etc., it brings new challenges in free-space vessel trajectory prediction. In addition, the trajectory characteristics of a vessel are different from that on lan...
Chapter
Full-text available
Trajectory prediction is a key problem in MDTN (Mobile Delay Tolerant Network). Because Vessel’s moving pattern is in free space and easily influenced by the fish moratorium, tide, weather, etc., it brings new challenges in free-space vessel trajectory prediction. In addition, the trajectory characteristics of a vessel are different from that on la...
Article
Full-text available
The ocean covers nearly two-thirds of the surface on the Earth, and there has been great interest in developing underwater wireless sensor networks (UWSNs) to help us explore the ocean realm. A great deal of efforts have been devoted to it, and significant progress has been made since the beginning of 2000s. However, most of the networks are isolat...
Article
Full-text available
Vessel Monitoring System (VMS) provides a new opportunity for quantified fishing research. Many approaches have been proposed to recognize fishing activities with VMS trajectories based on the types of fishing vessels. However, one research problem is still calling for solutions, how to identify the fishing vessel type based on only VMS trajectorie...
Chapter
Feature selection is an important step of data processing. When feature selection is conducted for multi-label classification problem in online learning fashion, it is the problem of online multi-label feature selection. Online feature selection is very appropriate for some actual situations in which the data is not available in advance, the data s...
Article
Multi-label learning deals with data associated with multiple labels simultaneously. It has been extensively studied in diverse areas such as information retrieval, bioinformatics, image annotation, etc. Explosive growth of multi-label-related data has brought challenges of how to efficiently learn these labelled data and automatically label the un...
Article
Full-text available
Due to lack of the coverage of 3G/4G network, satellite communication which costs excessively is the main approach used in ocean to provide network service. Ocean mobile delay tolerant network (OMDTN) can provide low-cost data transmission service in the network by utilizing the contact chances of moving vessels. Spatio-temporal contact pattern is...
Conference Paper
Full-text available
Vessel Monitoring Systems (VMS) provide trajectory data of fishing vessels to discover the spatial-temporal pattern of fishing activities. Although previous researches exhibit the fishing resource distribution in space and time, the information on vessel sailing activities traveling from one fishing region to another are lost. These kinds of activities...
Article
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Ocean and water basically cover the major parts of our planet. To obtain the best utilization of the underlying resources on these parts of the Earth, people have made some research advancements. Specifically, the research on underwater wireless acoustic sensor networks (UWA-SNs) has made great progress. However, wide deployment of UWA-SNs is far f...
Article
Full-text available
Virtual instrument is a program that implements functions of an instrument by software which could replace the work of real instrument to save resources. The functions of these sensor-based systems are limited and they commonly can not manage related information, such as sensors and monitoring objects, due to special requirements. The procedure of...
Conference Paper
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We present WFID, a passive device-free indoor human iden- tification system with one pair of WiFi signal transmitter and receiver. WFID design is motivated by the observation that PHY layer Channel State Information (CSI) is capable of capturing the frequency diversity of wideband channel, such that the human body curve may be uniquely identified b...
Conference Paper
Full-text available
This paper presents a new biometric trait, finger snapping, which can be applied for person authentication. We extract a set of features from finger snapping traces according to time and frequency domain analysis. A prototype is developed on Android smartphones to realize authentication for users. We collect 6160 snapping traces from 22 subjects fo...
Conference Paper
Full-text available
Recently, the satellite-based Vessel Monitoring Systems (VMS) have been widely deployed on fishing vessels. Recognition of fishing activity is the key task for various applications. Previous approaches are basically according to change of vessel's speed; or rely on the validated data from logbooks or documented observations. In this paper, with a r...
Conference Paper
Full-text available
The traditional routing protocols for delay tolerant networks (DTN) usually take the strategy of spreading multiple copies of one message to the networks. When one copy reaches destination, the transmission of other copies not only waste the bandwidth but also deprive other messages of the opportunities for transmission. This paper brings up a mech...
Article
A great deal of ocean sensor observation data exists, for a wide range of marine disciplines, derived from in situ and remote observing platforms, in real-time, near-real-time and delayed mode. Ocean monitoring is routinely completed using sensors and instruments. Standardization is the key requirement for exchanging information about ocean sensors...
Conference Paper
Full-text available
User authentication is important to protect sensitive and private information for smartphone users. We propose Waving Authentication (WA) which is a motion gesture authentication system based on accelerometer. WA utilizes eight distinguishing features hiding in the acceleration traces of motion gestures and exploits one-class Support Vector Machine...
Article
Ocean information management is of great importance as it has been employed in many areas of ocean science and technology. However, the developments of Ocean Information Systems (OISs) often suffer from low efficiency because of repetitive work and continuous modifications caused by dynamic requirements. In this paper, the basic requirements of OIS...
Conference Paper
Full-text available
High accurate indoor localization and tracking of smart phones is critical to pervasive applications. Most radio-based solutions either exploit some error prone power-distance models or require some labor-intensive process of site survey to construct RSS fingerprint database. This study offers a new perspective to exploit RSS readings by their cont...
Article
Ocean observing in global and regional scale is an important part of Internet of Things. Traditional virtual instruments have their limitations when applied in ocean observing, resulting in poor data usability and low development efficiency. In this paper, the complex virtual instruments with enhanced capabilities for ocean observing is introduced...
Conference Paper
Lifetime prolonging is one significant research issue in underwater acoustic sensor networks (UASNs). First this paper analyzes the relationship between the receiving energy consumption and the transmission energy consumption in the acoustic communication of UASNs. The routing tree is built up on the factor of optimal transmission range. Then a hyb...
Conference Paper
Full-text available
As the sleeping quality of a person would decline with repeated waking at night, similarly, for a sensor node in wireless sensor networks (WSN), waking up from dormancy frequently could cause energy waste by repeatedly switching on/off circuits and shorten the hardware lifetime. Existing sleeping schemes for WSN mainly focus on the maximization of...
Article
Full-text available
Time synchronization plays an important role in wireless sensor network applications and energy conservation. In this paper, we focus on the need of time synchronization in underwater acoustic mobile sensor networks (UAMSNs). Several time synchronization algorithms have been carried out in this issue. But most of them are proposed for RF-based wire...
Article
Measurement-based product testing management systems (MPTMS) are widely used during the life cycle of products to validate the design and test the products. Unfortunately, measurement data from measurement systems are isolated with testing task information in the MPTMSs. Furthermore, the development of MPTMSs often begins from scratch, which leads...
Conference Paper
Full-text available
Virtual instrument system has received amounts of attention and become a common practice in many fields. Virtual instrument is a program that implements functions of an instrument by software which could replace the work of real instrument to save resources. The functions of these systems are limited and they commonly have little related informatio...
Article
Full-text available
Time synchronization is the basis for collaboration across multiple sensor nodes. Underwater sensor networks (UWSNs) have different characteristics from the terrestrial wireless sensor networks, where communication is primarily via acoustic signals, producing new challenges to time synchronization. This paper first illustrates the definitions of th...
Conference Paper
Full-text available
Data collection and transmission are crucial tasks in current marine surveillance systems. Each node samples in a specific area and transmits its sensing data back to the land by satellites. In this paper, we propose a methodology of a vessel-based ocean monitoring delay tolerant networking (VOM-DTN) which is a cost saving DTN utilizing the existin...