As one of the cyber–physical–social systems that plays a key role in people's daily activities, smart city is producing considerable amount industrial data associated with transportation, healthcare, business, social and so on. Effectively efficiently fusing mining such from multiple sources can contribute much to development improvements various applications. However, collected are often sensitive contain partial user privacy as spatial–temporal context information. Therefore, it becoming...

The development of Internet Vehicles (IoV) has produced a considerable amount real-time traffic data. These data constitute kind digital twin that connects the physical vehicles and their virtual representation via 5G communications. Generally, through analyzing data, administrators can optimize scheduling alleviate jams. However, exceptions IoV sensors inevitably raise an issue sparsity consequently influence scientific decisions. Inspired by this drawback, in article, twin-assisted...

Recommending appropriate product items to the target user is becoming key ensure continuous success of E-commerce. Today, many E-commerce systems adopt various recommendation techniques, e.g., Collaborative Filtering (abbreviated as CF)-based technique, realize item recommendation. Overall, present CF can perform very well, if owns similar friends (user-based CF), or purchased and preferred by own one more (item-based CF). While due sparsity big rating data in E-commerce, may be both absent...

Cloud computing has promoted the success of big data applications such as medical analyses. With abundant resources provisioned by cloud platforms, quality service (QoS) services that process could be boosted significantly. However, due to unstable network or fake advertisement, QoS published providers is not always trusted. Therefore, it becomes a necessity evaluate in trustable way, based on services' historical records. evaluation efficiency would low and cannot meet users' quick response...

Abstract The homoterpenes (3E)-4,8-dimethyl-1,3,7-nonatriene (DMNT) and (E,E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene (TMTT) are the major herbivore-induced plant volatiles that help in defense directly by acting as repellants indirectly recruiting insects’ natural enemies. In this study, DMNT TMTT were confirmed to be emitted from citrus (Citrus sinensis) leaves infested with Asian psyllid (Diaphorina citri Kuwayama; ACP), two cytochrome P450 (CYP) genes (CsCYP82L1 CsCYP82L2) newly...

Summary Because of the strong demands physical resources big data, it is an effective and efficient way to store process data in clouds, as cloud computing allows on‐demand resource provisioning. With increasing requirements for provisioned by platforms, Quality Service (QoS) services management becoming significantly important. Big has character sparseness, which leads frequent accessing processing, thereby causes huge amount energy consumption. Energy cost plays a key role determining...

Summary Traffic hotline discovery is necessary for rational and scientific urban transportation planning in the new living quarters economic zones. Cloud of Things (CoT) a newly emerging concept, involving with two advanced technologies, that is, Computing Internet (IoT). CoT provides promising opportunities traffic discovery. However, it still challenge to discover hotlines over CoT. In view this challenge, method by using big taxi GPS data proposed paper. Specifically, principle presented...

The generation of an optical vortex array (OVA) by using diffraction grating is presented. At first a produced with computer and displayed on spatial light modulator (SLM) which controlled the computer. Then let plane irradiate SLM vertically. transmitted lights after can produce regular be observed adjusting distance grating. principle discussed distribution intensity properties at different are also discussed. simulations completed results show that generated well grating, simple easy to...

The paper proposes two protocol independent traffic policing algorithms, the loose generic bucket policer (LGBP) and strict (SGBP), both of which are based on well known cell rate algorithm (GCRA). Both LGBP SGBP can be configured to support GCRA. We also prove that as a token policer. Furthermore, new design for shaper is proposed. Using algorithms update time stamps, guarantee conformance flows individual profile.

Exploration and research on technology alliance partner selection based imperfect information dynamic game is the premise guarantee to further promote knowledge collaboration efficiency of Enterprise, University Research Institute, sustainable development alliance.This paper analyzes connotation cooperative partners in alliance, discusses Technology Alliance Cooperative process basis theory, studies effective screening for shows that performance improvement cooperation competition are two...

Studies on path dependence (PD) and lock-in have indicated several limitations, such as chaotic literature information, interdisciplinarity complexity, evolution vagueness. In this study, are obtained from the database of Web Science Core Collection 2001 to 2017. The knowledge mining model is constructed based process content. area also explored. Results show that can be categorized follows: (1) English, American, German scholars led research lock-in. (2) topics undergone four stages. (3)...