Figure - uploaded by Said A. Salloum
Content may be subject to copyright.
Source publication
In the case of compromised databases or interested database managers, CryptDB has been built for validated and realistic protection. CryptDB operates through encrypted data while executing SQL queries. The key concept of the SQL-aware encryption technique is to map SQL operations to encryption methods, adjustable query-driven encryption which facil...
Similar publications
Citations
... For query optimization, prevailing techniques like the deep learning-based GRU method [6] were primarily employed [7]. For enhancing QP, the machine learning-based Support Vector Machine classified queries [8,9,10]. Nevertheless, the userintentions of queries that degraded the accurate QP were not concentrated by these techniques. ...
Query Processing (QP) is optimized by a Cloud-based cache by storing the frequently accessed data closer to users. Nevertheless, the lack of focus on user intention type in queries affected the efficiency of QP in prevailing works. Thus, by using a Contextual Fuzzy Linguistic Inference System (CFLIS), this work analyzed the informational, navigational, and transactional-based intents in queries for enhanced QP. Primarily, the user query is parsed using tokenization, normalization, stop word removal, stemming, and POS tagging and then expanded using the WordNet technique. After expanding the queries, to enhance query understanding and to facilitate more accurate analysis and retrieval in query processing, the named entity is recognized using Bidirectional Encoder UnispecNorm Representations from Transformers (BEUNRT). Next, for efficient QP and retrieval of query information from the semantic cache database, the data is structured using Epanechnikov Kernel-Ordering Points To Identify the Clustering Structure (EK-OPTICS). The features are extracted from the structured data. Now, sentence type is identified and intent keywords are extracted from the parsed query. Next, the extracted features, detected intents and structured data are inputted to the Multi-head Gated Recurrent Learnable Attention Unit (MGR-LAU), which processes the query based on a semantic cache database (stores previously interpreted queries to expedite effective future searches). Moreover, the query is processed with a minimum latency of 12856ms. Lastly, the Semantic Similarity (SS) is analyzed between the retrieved query and the inputted user query, which continues until the similarity reaches 0.9 and above. Thus, the proposed work surpassed the previous methodologies.
... The failure in delivering the material to the students may lead to failure in achieving learning objectives. Therefore the interactive learning media can incorporate a variety of audio and video material that suits the development of the digital era Habes, Salloum, Alghizzawi, & Mhamdi, 2019;Al-Maroof et al., 2021a,b,c;Mouzaek et al., 2021;Yousuf et al., 2021). To be able to transfer the audio and video material efficiently, an information technology system is required (Mutia, Gimin, & Mahdum, 2020;Rosa, 2015;Sudibyo, 2013). ...
Recently audio and video material has been used significantly in various online platforms. The audio- video materials enhance the teaching and learning process by facilitating the transformation of the data and providing a richer interactive environment, hence gaining wide intention within the educational realm. However, empirical studies have not examined the acceptance of the audio and video material depending on a conceptual model where acceptance is the key factor. The present study attempts to overcome this gap in the literature review by investigating the effects of media richness, speed and vividness, perceived concentration, perceived ease of use, perceived usefulness on the acceptance of audio-video material. What distinguishes the current study is the fact that content richness is considered as a mediator that affects all other factors in the conceptual model. The data is collected by distributing the online survey to college students. The results provide mostly insight and support for students’ intention to use audio-visual resources in a conceptual model. The technology characteristics of speed and vividness as well as TAM constructs were significant predictors of technology acceptance. However, it is concluded that the external factor of the perceived
concentration has no impact on the students’ perception and intention to use audio-visual resources. In the recommendation, some theoretical and practical implications are stated along with the focus on technology designers, change managers, and users.
This paper consolidates academic studies on knowledge sharing and acquisition. An effort is made to synthesize and establish the research perspectives and the link between knowledge sharing and knowledge acquisition in higher educational institutions based on a systematic review of literature retrieved from sources such as Google Scholar and the various journals listed on Scopus. Many articles were identified that studied these two processes separately. However, the number of works that investigate the relationship between knowledge sharing and knowledge acquisition is extremely limited, particularly in the context of higher education institutions (HEI). This systematic review finds papers that explain techniques of information sharing and knowledge acquisition in higher education institutions and examines the impact of knowledge sharing on knowledge acquisition. The papers chosen draw a link between knowledge sharing and knowledge acquisition and outline the criteria that facilitate knowledge sharing.
The purpose of this study is to review the research on the function and impact of project management offices (PMOs) in knowledge management (KM) and to establish the current body of knowledge by addressing the following questions: What function does the PMO play in the knowledge management process, and what types of knowledge does the PMO deal with? The study includes a systematic literature review for six papers on project management office (PMO) role and impact on knowledge management. PRISMA guidelines were used to select the papers and the research focused on the most important six papers to investigate the research questions. The study findings revealed that PMO plays a vital role in boosting information usefulness by sharing the correct knowledge with the right people at the right time. Furthermore, PMO is important for maintaining knowledge repositories, which comprise knowledge generated from projects in the form of lessons learned, updated project management standards, and individual learning that becomes organizational learning.
Knowledge sharing between employees in positions at different levels in the organization chart is always a big challenge. It is important to study the main factors that affects employees' knowledge. A number of literature reviews that sheds the light on knowledge management (KM) was conducted, which focuse on the employee knowledge sharing motivations. However, analyzing the knowledge sharing among employees is still questioned and requires further examination. The main objective of this systematic review is to analyze the state-of-the-are KM studies that involved the factors that affect employees' intention to share their tacit knowledge. In this systematic review, we explored the tacit knowledge sharing and reviewed 115 recent papers. After filtering and reviewing we extracted many factors, then we categorize them into twelve categories: (ordered by most frequent studied), namely: trusting environment, culture, organization encouragement, rewards, Information system, intrinsic motivations, equal opportunities, job security, the community of practice, time pressure, knowledge confidence and accuracy, and years of experience. This systematic review is important to organizations which seek to share, preserve tacit knowledge and experiences, and gain competitive edge.
