The craze is rising. How was the "Cloud Group Examination" created?
Since the epidemic, many scenes have changed, and "examination" is one of them.
More and more schools are beginning to adopt the cloud-based group examination model to improve examination efficiency, save manpower and material costs, and standardize examination management. This has triggered a wave of enthusiasm in the field of examination and assessment, and is also an innovative aspect of digital intelligence in education.
The integration of audio and video technology and AI on the cloud can help transform the exam format. Of course, not only education, more and more industries are exploring "new examinations."
A new group examination model
As a necessary existence, examinations are closely related to schools, enterprises and individuals.
Academic assessment, qualification certification, talent recruitment, selection and evaluation... Various examination forms emerge in endlessly. In 2021, 18.8 million people across the country signed up to take the professional and technical personnel qualification examination alone.
The sharply increasing demand for exams has led to an increase in the number of exams and types of exams. It has become more common for candidates to rush for exams across regions, making it more difficult to organize and manage exams. Coupled with the increasing emphasis on security, confidentiality and exam administration, A large amount of social public resources are also continuously consumed and wasted in offline examination guarantee.
In response to these pain points, remote examinations have emerged in response to the times. However, in order to achieve a smooth group examination "on the cloud", the stability, reliability, lower cost, fairness and effectiveness of remote examinations are the top priority.
Based on an in-depth understanding of remote examination scenarios, Alibaba Cloud Video Cloud launched the intelligent remote proctoring PaaS+ solution to help more industries explore cloud examination scenarios and truly ensure the efficiency and fairness of cloud examinations .
Intelligent remote proctoring solution
The key to the “cloud exam” solution
After large-scale practice, Alibaba Cloud provides a PaaS+ remote examination solution with 100,000+ concurrencies, ultra-low latency, and easy access.
In the face of large-scale traffic peaks, stability is crucial for cloud exams.
In view of the stability of exams on the cloud , the intelligent remote proctoring solution relies on Alibaba Cloud's multi-integrated streaming media transmission network MediaUni , using the push-pull streaming capability of ultra-low latency live broadcast RTS2.0, which can carry 100,000+ high concurrency and realize proctoring end video The delay is within 1 second, and the delay of one-to-one call is within 300ms, which fully meets the strong stability guarantee of high concurrency, high reliability, and low latency.
Intelligent remote proctoring solution architecture
In order to ensure the safety and reliability of the exam environment, the intelligent remote proctoring solution is also equipped with a device detection function. Before the exam, the candidates’ equipment such as cameras and microphones, as well as the exam network environment, etc., will be tested one by one to pre-check exam problems as much as possible before the exam to ensure that The steady progress of formal examinations.
In the context of cost reduction and efficiency improvement, how to use cloud examinations to reduce costs may be a new way for enterprises.
In order to reduce the overall cost of the cloud exam solution , the intelligent remote proctoring solution combines Alibaba Cloud's powerful media processing capabilities to support cloud confluence and cloud large and small stream transcoding. It supports 16/25 same-screen proctoring on the proctoring side, which can alleviate network egress on the proctoring side. 80% of the pressure, and significantly saves the cost of online exams.
In addition, cloud computing can be activated on demand and used according to the amount, and the intelligent remote proctoring solution can be accessed through MediaBox AUI Kits or atomic capabilities to ensure sufficient and non-redundant use of cloud resources. Compared with traditional offline examinations, the sustainable and iterative cloud examination solution can not only save school implementation costs, but also save candidates’ long-distance travel costs and a large amount of social public resources, greatly improving the efficiency of online examinations.
Compared with offline exams, online exams are a fair defense battle.
In terms of ensuring the fairness of exams , cloud exams require multiple technologies to protect them, and a series of capabilities such as monitoring, traceability, and discoverability have emerged.
In addition to dual-camera real-time monitoring, the intelligent remote proctoring solution also supports dual-channel recording for one person and one file. Under normal network conditions, candidates' exam videos are recorded in the cloud. When candidates are suddenly disconnected, local screen recording will be started to ensure that candidates' behavior during the disconnection can be traced back.
Cloud + local dual-channel recording
At the same time, in order to prevent examination violations, Alibaba Cloud Video Cloud also innovatively developed an intelligent anti-cheating SDK based on AI technology , which can detect candidates' human behavior, electronic products, clothing environment, etc. in real time on the client side, and accurately restore every aspect of the "cloud examination room" Instantly, ensure the fairness and effectiveness of the exam.
Strong stability guarantee under high concurrency, ultimate cost optimization, and multiple anti-cheating mechanisms make Alibaba Cloud's intelligent remote proctoring solution the first choice for cloud-based exams to become informatized and intelligent.
New potential energy, new possibilities
At present, Alibaba Cloud's intelligent remote proctoring solution has covered three major application scenarios: art exams, grade exams, and corporate exams, successfully supporting art admissions exams, youth programming grade exams, corporate certification exams, etc., and fully accelerating the digital upgrade of audio and video in various industries.
In the art examination scenario, the intelligent remote proctoring solution has overcome difficulties in different types of art examinations and successfully moved thousands of people's offline examinations online, realizing a disruptive change in the history of art examinations for thousands of years.
In the grade examination scenario, the intelligent remote proctoring solution supports the one-stop construction of the examination system and provides full-process examination service guarantee. While realizing flexible customization of business functions, it ensures the foolproof reliability of the youth artificial intelligence programming proficiency test.
In enterprise exam scenarios, the intelligent remote proctoring solution provides a variety of integration methods, supports audio and video capabilities that are compatible with the original exam system, and provides a high-concurrency, low-latency, strong and stable enterprise certification exam experience.
The emergence of cloud exams in these scenarios is inseparable from the blessing of Alibaba Cloud MediaBox audio and video terminal development kit . In addition to the three major exam scenarios, Alibaba Cloud MediaBox will also be seen in more exam scenarios such as training exams, recruitment exams, competition exams, semester exams, etc., further releasing the new potential of digital exams on the cloud.
MediaBox provides the most lightweight tools to simplify the audio and video development process.
The intelligent remote proctoring solution can be integrated with low code through MediaBox remote proctoring AUI Kit to quickly develop the exam system from 0 to 1, shortening the monthly/weekly integration time to hourly level.
In addition to AUI Kits, by integrating the MediaBox terminal SDK and accessing it with atomized capabilities, flexible migration of audio and video capabilities can also be achieved, thereby creating more capability space for exam scenarios . For example, by connecting to the MediaBox Intelligent Anti-cheating SDK, you can intelligently identify multiple exam-sensitive behaviors and facilitate the intelligent development of cloud exams.
In the future, MediaBox will also work with more ecological partners to use the deep integration of AI and audio and video to innovate more capabilities and open more scenarios in a lightweight form.
Experience the remote proctored exam Demo and learn more about "Exams on the Cloud": https://video.aliyuncs.com/exam-demo#/home
Click the link to learn more about MediaBox: https://www.aliyun.com/product/apsaravideo/imp?spm=5176.27290129
