This research proposes a two-stage user-based collaborative filtering process using an artificial immune system for the prediction of student grades, along with filter professor ratings in course recommendation college students. We test cosine similarity and Karl Pearson (KP) correlation affinity calculations clustering prediction. uses information datasets Yuan Ze University from years 2005–2009 purpose testing training. The mean average error confusion matrix analysis form parameters. A...

Uncontrolled wound bleeding and bacterial infection are the most common problems in healing/skin regeneration, failure to provide effective care will obviously increase risk of other diseases reduce quality healing. The ideal strategy is prepare a simple dressing with rapid hemostasis durable antimicrobial activity as an alternative conventional hemostatic gauze facilitate satisfactory In this study, Ag-doped TiO 2 nanoparticles modified unsaturated carbon–carbon double bonds (Ag@M-TiO )...

To support a hypothesis that there is an intrinsic interplay between coronary artery disease (CAD) and type 2 diabetes (T2D), we used RNA-seq to identify unique gene expression signatures of CAD, T2D, coexisting conditions. After transcriptome sequencing, differential analysis was performed each disordered state normal control group. By comparing profiles conditions, common specific patterns were displayed. verify the CAD or data GSE23561 extracted. A strong overlap 191 genes across T2D...

Anode-free lithium and sodium metal batteries (N:P = 0:1) are regarded as a promising method to significantly improve the energy density of rechargeable batteries. Studies concerning separator modification anode-free K (AF-KMBs) rare. Herein, reduced graphene oxide (rGO) served special coating layer with high conductivity porosity achieve high-performance AF-KMBs good dynamic characteristics. In addition, rGO can help form stable solid electrolyte interface (SEI) soft host on Cu foil for...

This research combines artificial immune system with user and item based collaborative filtering to create an efficient accurate recommendation system. By applying the characteristic of antibodies antigens in using Pearson correlation coefficient as affinity threshold cluster data, our can effectively find useful users items for rating prediction. uses MovieLens dataset testing target evaluate effectiveness algorithm developed this study. The experimental results show that accurately predict...

With1 the continuous application of evolutionary algorithms in various combinatorial optimization problems, traditional are prone to premature convergence and fall into local solutions as complexity problems increases. To solve this problem, paper proposes a hybrid algorithm combining Generative adversarial nets (GAN) Genetic Algorithm (GA). The is based on introducted GAN sample another generated model. expected more abundant information through mining, got advantage training GA. It makes...

Potassium-ion batteries (KIB) have similar energy storage mechanism with lithium-ion battery, but the potassium (K) resource is rich, which shows great potential for large-scale system. Recently, anode materials of KIB studied mainly include carbon materials, transition metal oxides, and alloy materials. The amorphous hard best comprehensive performance, its intercalation close to 0 V (versus K

Abstract Liquid sodium‐potassium (Na‐K) alloy has the characteristics of high abundance, low redox potential, capacity, and no dendrites, which become an ideal alternative material for potassium/sodium metal anodes. However, surface tension liquid sodium potassium at room temperature makes it inconvenient in practical use. Here, Na‐K as reducing agent treats with hydrazone linkages covalent organic frameworks (COFs) obtain carbon‐oxygen radical COFs (COR‐Tf‐DHzDM‐COFs). The preparation...

The recent introduction of depth cameras like Leap Motion Controller allows researchers to exploit the information recognize hand gesture more robustly. This paper proposes a novel recognition system with Controller. A series features are extracted from tracking data, we feed these along HOG feature sensor images into multi-class SVM classifier performed gesture, dimension reduction and weighted fusion also discussed. Our results show that our model is much accurate than previous work.

Capacitated Vehicle Routing Problem (CVRP) is a variant of (VRP), where CVRP only considered the capacity restrictions, and object to minimize cost vehicles serve all customers. In this study, we proposed an approach which hybrid two-phase sweep algorithm (SA) greedy search for solving CVRP. At first stage SA, customers are clustered by SA define each cluster as block. The second reconstruct neighbour clusters based on stage. Then applied vehicle. Finally, computational result standard...

The package delivery industry has become one of the more prominent industries worldwide, which is indispensable to many people's daily lives. Clients expect their packages be delivered as promptly possible, and this end, leading agencies like Amazon DHL have begun use drones for delivery. Drones are aircraft or flying machines either controlled by trained pilots autonomously follow a pre-programmed route. However, companies using deliveries experienced several problems. In particular, time...

Iron and nitrogen codoped carbons (Fe-Nx-C) are potential nonprecious metal catalysts to substitute Pt for oxygen reduction reaction (ORR). The essential goal Fe-Nx-C is obtain high-density well-dispersed Fe-Nx active sites. Herein, we demonstrate that this can be realized by a NaCl crystallites-templated copyrolysis of iron phthalocyanine (FePc) zinc (ZnPc), in which Zn vitally induces rich micropores stabilizes the edge-doped N atoms, thus providing effective footholds formation...

Background construction is the base of object detection and tracking for machine vision system. Traditional background modeling methods often require complicated computations are sensitive to illumination changes shadow interference. In this paper, we propose a block-based method, which fully utilizes color texture characteristics each incoming frame. The proposed method quite efficient capable resisting disturbance. Experimental results show that our suitable real-word scenes real-time applications.