Video Question Answering via Attribute-Augmented Attention Network Learning

Video Question Answering is a challenging problem in visual information retrieval, which provides the answer to the referenced video content according to the question. However, the existing visual question answering approaches mainly tackle the problem of static image question, which may be ineffectively for video question answering due to the insufficiency of modeling the temporal dynamics of video contents. In this paper, we study the problem of video question answering by modeling its temporal dynamics with frame-level attention mechanism. We propose the attribute-augmented attention network learning framework that enables the joint frame-level attribute detection and unified video representation learning for video question answering. We then incorporate the multi-step reasoning process for our proposed attention network to further improve the performance. We construct a large-scale video question answering dataset. We conduct the experiments on both multiple-choice and open-ended video question answering tasks to show the effectiveness of the proposed method.Comment: Accepted for SIGIR 201

The effect of dominant index finger fatigue on the force production of contralateral homologous muscle and biceps brachii

Non-local muscle fatigue (NLMF) has been examined but the literature is inconsistent. Differences in the protocols contribute to the inconsistent results. Most NLMF studies focus on large muscle groups only (elbow flexors or knee extensors), with few NLMF studies involving small muscles as either fatigued or tested muscles. Furthermore, the NLMF effect from a small fatigued muscle to a larger heterologous muscle is unknown. Hence, the objective of the present study was to examine the effect of small muscle fatigue on the force production and activation of contralateral homologous and a larger heterologous muscles

Service quality of facilities management based on users’ expectation and perception in residential community

In recent years, the increasing amount of facilities management companies and residential communities has raise together with the complaint rate that concerning the quality of service in facilities management. The same situation occurred in Dragon Spring Residential Community in Shijiazhuang, China. Consequently, this study was conducted to analysis the service quality of facilities management based on the residents‟ expectation and perception in Dragon Spring Residential Community. The objectives of this study are (1) to identify the service level based on the residents‟ expectations and their perceptions and (2) to identify the factors which can influence the service quality. Questionnaires were distributed to a residential community in Shijiazhuang of Hebei Province, China. A total of 105 residents from Dragon Spring Residential Community were randomly selected to be the respondents of the study. Five dimensions included 22 items of measure service quality were named: reliability, assurance, empathy, responsiveness and tangible. In this study, the descriptive analysis, gap analysis and Kruskal-Wallis Test were used to analyze the data. This study found that the residents are dissatisfied with the service quality level provided by the FM Company because the entire gap between residents‟ expectation and perception which is negative, and there is significant positive relationship between service quality, as well as the gender and age factors (p﹤0.05). At the end of this study, some recommendation was suggested to the FM Company and guided them to improve the service quality

Two-Dimensional Field Effect Transistor

As silicon-based field-effect transistors (FETs) approach their physical limits with channel lengths approaching 5 nm, the search for new semiconductor materials that can surpass this limit has become urgent. Two-dimensional layered semiconductor nanomaterials, represented by graphene, have emerged as promising candidates due to their unique physical, mechanical, and chemical properties. Unlike traditional silicon-based FETs, two dimensional (2D) layered nanomaterials are held together by van der Waals forces between layers, with no dangling bonds on the material surface, which can effectively address the short-channel effect issue faced by traditional silicon-based FETs. However, unlike traditional silicon-based FETs, which have matured fabrication systems, the semiconductor material acquisition and fabrication techniques for 2D FETs are still under exploration. In this paper, we investigate 2D material FETs and Gate-All-Around (GAA) FETs, including their structural design and fabrication methods, and study their electrical performance. We first introduce various methods for obtaining and transferring 2D semiconductor materials, and describe the specific fabrication process of 2D FET devices, including electrode design, lithography, deposition, and oxide layer growth. Then, we fabricate FETs using 2D MoS2 and test the output characteristics and transfer characteristics of the back-gate and top-gate of the devices, respectively. Finally, we investigate the impact of different metal-semiconductor contacts on device performance, but the devices fabricated did not show the expected improvement, possibly due to the thickness of MoS2 being too thick. To further improve the performance of 2D FETs, we design 2D GAA FETs and analyze and compare two different methods for the transfer oxide layer, each with its advantages and disadvantages, which should be chosen based on specific usage scenarios

Service quality of facilities management based on users’ expectation and perception in residential community

In recent years, the increasing amount of facilities management companies and residential communities has raise together with the complaint rate that concerning the quality of service in facilities management. The same situation occurred in Dragon Spring Residential Community in Shijiazhuang, China. Consequently, this study was conducted to analysis the service quality of facilities management based on the residents‟ expectation and perception in Dragon Spring Residential Community. The objectives of this study are (1) to identify the service level based on the residents‟ expectations and their perceptions and (2) to identify the factors which can influence the service quality. Questionnaires were distributed to a residential community in Shijiazhuang of Hebei Province, China. A total of 105 residents from Dragon Spring Residential Community were randomly selected to be the respondents of the study. Five dimensions included 22 items of measure service quality were named: reliability, assurance, empathy, responsiveness and tangible. In this study, the descriptive analysis, gap analysis and Kruskal-Wallis Test were used to analyze the data. This study found that the residents are dissatisfied with the service quality level provided by the FM Company because the entire gap between residents‟ expectation and perception which is negative, and there is significant positive relationship between service quality, as well as the gender and age factors (p﹤0.05). At the end of this study, some recommendation was suggested to the FM Company and guided them to improve the service quality