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Mahoor Khan

Abstract: Consumer-created reviews of services are a critical driver of everyday decision-making. A service that has a higher average review or rating usually gets picked against a similar service with less favourable reviews. Customer feedbacks are useful for restaurants in order for them to recognize their strengths and weaknesses, and therefore generate ideas to enhance their services. Social media applications already provide us with an option of sharing our reviews which helps a new visitor to know the place in advance, but it is really hard to get a holistic view of the restaurant mainly due to the fact that almost anyone can submit a review regardless of whether they have actually visited the restaurant or not. Some mischievous people deliberately put-up misleading reviews about a particular restaurant due to which other people get a bad image of that restaurant, thus bringing down the business. This paper aims to address all these concerns specifically. The objective was to build an interface that would prevent malicious users uploading deceptive reviews about a restaurant. Two techniques namely Bill Number Concept and QR Code Concept were proposed to build the required interface. Sentiment Analysis was then used to convert these reviews into ratings. The interface created using the mentioned techniques enabled only verified users to submit their reviews thereby successfully preventing malicious users from submitting a review. Keywords: feedback, reviews, bill number, QR code, sentiment analysis

2021 ◽  
Vol 20 (4) ◽  
pp. 455-480
Thiago Chiorino Costa ◽  
Samara De Carvalho Pedro ◽  
Daniela Menezes Garzaro ◽  
Marcelo Carvalho ◽  
Leonardo Vils

Objetivo do estudo: Sabendo da importância do ato da doação durante o período da pandemia e, tendo as lives como um fenômeno crescente, buscamos entender quais fatores influenciam os indivíduos a fazerem doações durante essas apresentações. Assim, visamos verificar como o envolvimento com as lives, a atitude em ajudar os outros e o uso de uma nova tecnologia, o QR Code, afetam esse novo processo de doação.Metodologia: Coletamos os dados de 291 indivíduos, sendo que o instrumento de coleta foi elaborado com escalas validadas. Para a análise do modelo, foi utilizada a técnica de Modelagem de Equações Estruturais, Partial Least Squares (PLS).Principais resultados: A análise do modelo estrutural confirmou que a atitude em ajudar os outros medeia a relação entre o envolvimento com as lives e a intenção de doar. No entanto, a atitude em relação a usar o QR Code não apresentou relação significante com a intenção de doar.Contribuições teóricas: Nosso estudo contribui com as teorias relacionadas a comportamento do consumidor, em situações relacionadas a engajamento em ações de captação de recursos para caridade.Relevância/originalidade: A originalidade do nosso estudo se mostra na investigação da intenção comportamental de doação para caridade em um contexto totalmente atípico (pandemia de COVID-19), por meio de ferramentas e cenários novos (utilização de QR Code em lives).Implicações para a gestão ou sociais: No estudo, discutimos sobre o impacto da tecnologia para a viabilização das doações e como os organizadores de eventos podem contribuir com as instituições de caridade, por meio das lives.

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Xuan Cu Le

PurposeThe research purpose is to explore the diffusion of mobile QR-code payment (MQP) in a coronavirus disease (COVID-19) context by formulating a behavioral response model based on an integration between protection motivation theory (PMT) and unified theory of acceptance and use of technology (UTAUT). This study also investigates the importance of physical distancing norm for behavioral intention toward MQP.Design/methodology/approachA web-based survey was designed and data were accumulated from 411 validated respondents who have used MQP or tend to utilize it in Vietnam. Statistical analysis was conducted using SPSS and AMOS to verify the hypotheses.FindingsResults illustrated that behavioral intention is motivated by key antecedents of PMT (including perceived severity, perceived susceptibility and self-efficacy) and important factors of UTAUT (including performance expectancy, effort expectancy and social influence), and physical distancing norm. Moreover, perceived severity promotes performance expectancy, whereas self-efficacy boosts effort expectancy in MQP. Lastly, behavioral intention and recommendation were indicators of the diffusion of MQP under COVID-19.Practical implicationsMQP is just in its infant stage in Vietnam; thus, the findings provide managerial implications, which will aid service providers and firms to adopt marketing strategies that enhance consumers' acceptability and recommendation of MQP to the public.Originality/valueLittle is empirically considered the effects of perceived threat-related factors in PMT and physical distancing norm on behavioral intention toward MQP in a salient pandemic setting. Furthermore, the antecedents in UTAUT contribute greatly to behavioral intention. This study enlightens the diffusion of MQP based on behavioral intention and recommendation.

2021 ◽  
Vol 13 (12) ◽  
pp. 299
Guma Ali ◽  
Mussa Ally Dida ◽  
Anael Elikana Sam

With the expansion of smartphone and financial technologies (FinTech), mobile money emerged to improve financial inclusion in many developing nations. The majority of the mobile money schemes used in these nations implement two-factor authentication (2FA) as the only means of verifying mobile money users. These 2FA schemes are vulnerable to numerous security attacks because they only use a personal identification number (PIN) and subscriber identity module (SIM). This study aims to develop a secure and efficient multi-factor authentication algorithm for mobile money applications. It uses a novel approach combining PIN, a one-time password (OTP), and a biometric fingerprint to enforce extra security during mobile money authentication. It also uses a biometric fingerprint and quick response (QR) code to confirm mobile money withdrawal. The security of the PIN and OTP is enforced by using secure hashing algorithm-256 (SHA-256), a biometric fingerprint by Fast IDentity Online (FIDO) that uses a standard public key cryptography technique (RSA), and Fernet encryption to secure a QR code and the records in the databases. The evolutionary prototyping model was adopted when developing the native mobile money application prototypes to prove that the algorithm is feasible and provides a higher degree of security. The developed applications were tested, and a detailed security analysis was conducted. The results show that the proposed algorithm is secure, efficient, and highly effective against the various threat models. It also offers secure and efficient authentication and ensures data confidentiality, integrity, non-repudiation, user anonymity, and privacy. The performance analysis indicates that it achieves better overall performance compared with the existing mobile money systems.

2021 ◽  
Vol 8 (6) ◽  
pp. 1127
Wahyudi Agustiono ◽  
Intan Rofika Putri ◽  
Devie Rosa Anamisa

<p class="Abstrak">Pelayanan dokumen resmi melalui media internet atau e-surat mulai diadopsi pemerintah karena lebih sederhana, cepat, murah dan aman. Penerapan e-surat ini akan sangat berguna terutama bagi Desa Waru Barat, Kabupaten Pamekasan, Madura yang sebagian warganya berdomisili di luar kota atau bahkan di luar negeri. Para warga desa ini seringkali membutuhkan pelayanan surat untuk berbagai keperluan administrasi tanpa terkendala perbedaan waktu dan jarak. Sementara itu, Pemerintah Desa juga ingin meningkatkan pelayanan surat menyurat kepada warganya secara efisien namun tetap menjaga keamanan dan keabsahan dokumen. Oleh karena itu, penelitian ini bertujuan merancang dan membangun aplikasi e-surat untuk Desa Waru Barat dengan menggunakan QR Code. Hasil evaluasi fungsionalitas menunjukkan bahawa aplikasi berhasil membuat dokumen surat dengan QR Code yang unik untuk menjaga keamanan dan keabsahan setiap surat. Sementara itu hasil user acceptance testing dengan melibatkan perangkat desa dan warga masyarakat sebagai pengguna utama menunjukkan tingkat dayaguna dan penerimaan sangat tinggi masing-masing 97,2% dan 95,6%. Dari hasil di atas, dapat disimpulkan bahwa penerapan aplikasi e-surat ini terbukti sangat berguna bagi pemerintah dan warga desa terutama yang berdomisili di luar desa. Berdasarkan hasil evaluasi flowmap menunjukan bahwa implementasi e-surat terbukti dapat membuat proses administrasi surat menyurat lebih sederhana, cepat, menghilangkan kendala jarak dan menghemat sumber daya (biaya, waktu dan utilitas) dibandingkan dengan proses sebelum adanya aplikasi ini. Selain implikasi praktis di atas, kontribusi penelitian ini khsusnya dalam bidang TI, yang dapat diadopsi penelitian masa depan, adalah arsitektur sistem dan aplikasi e-Surat dengan algoritma yang mampu membangkitkan QR Code yang unik untuk menjaga keamanan dan keabsahan dokumen.</p><p class="Abstrak"><strong><em><br /></em></strong></p><p class="Abstrak"><strong><em>Abstract</em></strong></p><p class="Judul2"><em>The process of providing certificates using internet to the citizens, known as e-certificate has increased. This is because e-certificate offers streamlined and faster process yet secure. Therefore, e-certificate seems to be useful especially for Waru Barat Village authority, Pamekasan District, Madura, whose people mostly work outside or even overseas. Eventually, they often need to obtain certificates from the authority for various purposes. On the other hand, the authority is keen to speeding up the delivery of the document but still pay attention to the validity and security. Therefore, this research attempted to design and develop e-certificate for Waru Barat Village using QR Code. The functionality testing showed the application successfully generated e-certificate along with the unique QR Code to secure and maintain the validity of the document. The user acceptance testing involving village staffs and people as the primary users indicated the overall score are 97.2% and 95.6% respectively. This implies that the application proofed to be useful and usable according to the staffs and especially to those who live outside the village. Another flow-map evaluation also showed that the implementation of e-certificate was able to make the administrative process more streamlined, faster, remove geographical barrier, save the resources (cost, time and utility). Despite these practical implication, the contribution of this research, especially to the IT discipline which could be adopted in the future study, is the system architecture and e-certificate application along with the algorithm for generating unique QR Code to ensure the security and validity of the document.           </em></p><p class="Abstrak"><strong><em><br /></em></strong></p><p class="Abstrak"><strong><em><br /></em></strong></p>

2021 ◽  
Vol 9 ◽  
Lifang Ma ◽  
Yonghong Mu ◽  
Ling Wei ◽  
Xiumei Wang

Objective: To explore the application value of QR code electronic manuals in operating theater equipment management and training.Methods: The control group adopted the traditional management mode. Training was carried out before each device was put into use in the department. A unified operation process and a paper card manual for common faults were formulated and hung next to each device. For the observation group, the electronic manuals generated by the QR code were pasted on the operating theater equipment for management and training. The management and training effect was compared between the two groups.Results: The efficiency of equipment management and training using the QR code electronic manuals was significantly higher than that of traditional training, and the difference was statistically significant (P &lt; 0.05).Conclusion: The QR code manuals are very effective in operating theater equipment management and training. They can be read and learned in time to improve the operating theater equipment utilization rate, accuracy rate, and equipment management and training quality.

2021 ◽  
Kacie C.A. Blackman ◽  
Derek S. Slama ◽  
Trevor A. Pickering ◽  
Aqueelah Russell ◽  
Wenonah Valentine ◽  

Abstract Background: In Los Angeles County (LAC), disparities in breastfeeding rates vary by race and region. Black persons are more affected by social and environmental factors than other racial/ethnic groups, leading to lower breast/chestfeeding rates. This study aims to evaluate the community’s knowledge, perceptions, experiences, barriers, and solutions regarding breast/chestfeeding among Black persons. Methods: Participant responses were collected anonymously through an online survey (via QR code) pre-and post-viewing with open- and closed-ended questions. There were 15 pre-screening questions and 24 post-screening questions. Questions included four main areas in breast/chestfeeding: current/past experiences, support, awareness of laws, and solutions. Central tendency, variance, and paired differences were calculated from evaluation responses. Results: There were 185 participants who completed the pre-screening evaluation and 57 participants who completed the post-screening evaluation. Racial/ethnic differences were found for stated reasons for attendance, and perceptions of breastfeeding being challenging after viewing the video. Most participants felt the video was relevant (median response = “2-relevant”; IQR = “3-neutral”, “1-very relevant”), learned something new (81.4%) and knew how to access breast/chestfeeding support after viewing the video (93.2%). Conclusions: Current media is a way to alter perceptions and opinions, and provides information. Additionally, it can be a way of increasing awareness of issues that Black breast/chestfeeding persons encounter. Strategic marketing efforts for future film screenings may increase attendance from those that can gain insight into breast/chestfeeding support (youth/young adults and males). Supportive breast/chestfeeding environments can also be a reality with a readily accessible, unified, and encouraging personal and professional networks.

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Hanan S. Al-Saadi ◽  
Ahmed Elhadad ◽  
A. Ghareeb

Watermarking techniques in a wide range of digital media was utilized as a host cover to hide or embed a piece of information message in such a way that it is invisible to a human observer. This study aims to develop an enhanced rapid and blind method for producing a watermarked 3D object using QR code images with high imperceptibility and transparency. The proposed method is based on the spatial domain, and it starts with converting the 3D object triangles from the three-dimensional Cartesian coordinate system to the two-dimensional coordinates domain using the corresponding transformation matrix. Then, it applies a direct modification on the third vertex point of each triangle. Each triangle’s coordinates in the 3D object can be used to embed one pixel from the QR code image. In the extraction process, the QR code pixels can be successfully extracted without the need for the original image. The imperceptibly and the transparency performances of the proposed watermarking algorithm were evaluated using Euclidean distance, Manhattan distance, cosine distance, and the correlation distance values. The proposed method was tested under various filtering attacks, such as rotation, scaling, and translation. The proposed watermarking method improved the robustness and visibility of extracting the QR code image. The results reveal that the proposed watermarking method yields watermarked 3D objects with excellent execution time, imperceptibility, and robustness to common filtering attacks.

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