Computer marking questions, how to read multiple choice questions when computer marking?

I don't know if the ordinary final exam you are talking about is the same as the computer marking method of the college entrance examination, so here I can only introduce you to the scoring method of the college entrance examination: the computer scoring method of the college entrance examination is to scan each test paper of the candidate into the computer and store it, and then the computer system automatically cuts the test paper internally according to the physical distribution of the question answers (note that it is the ** cutting of the test paper stored in the computer), and then only the computer knows the answer to each test paper after cutting** Which student it belongs to, but the teacher who marks the paper does not know, each teacher who marks the paper only sees the answer to the test paper, and they give marks according to that answer, so as to ensure fairness.

Secondly, if you want to scan the test paper into the computer, then the surface requirements of the test paper are also somewhat high. Sloppy papers, wrinkles, or the use of correction tape as you mentioned may affect the effectiveness of the computer's scanning. So I suggest that you don't necessarily need to use correction tape, try to write the answer with confidence when you write the answer, and if you really find the error, then cross the wrong answer one or two times (don't go back and forth until the original answer is unrecognizable and your own test paper is unrecognizable), so that you can keep the paper as clean as possible.

This will also give the teacher who marks the paper a kind of enjoyment, and it is easier to get a high score!

Good luck with your exams!

It's okay, most of the subjective questions are actually just screenshots for the teacher to see.

As far as I can tell, probably that has changed now).

Needless to say, answer sheets are used for objective questions.

Revealing how the computer is grading, I feel that I can't keep up with the times.

The college entrance examination essay is graded by computer. In order to ensure the fairness and objectivity of the Chinese composition marking in the college entrance examination, the test paper is scanned and input into the computer throughout the country, and the computer is used to limit the minimum reading and evaluation time of each article. The college entrance examination marking teacher marks the paper in front of the computer, and has a deeper feeling for writing.

Computer monitors seem to have higher requirements for writing, the size of the words, the clarity of the words, and the words'Color, neatness of the characters, etc.

In computer marking, multiple-choice questions are marked using a technique known academically as optical marker recognition. The system takes full advantage of graphite's opacity, which means that graphite only absorbs and reflects light, not through it.

So when a beam of light scans the answer sheet, the part we have scribbled will reflect the light outward. There are sensors that capture light in the reflected direction, and our answer data is captured by the system and the score is calculated.

Therefore, to complete normal sensing, there are two important indicators: the concentration and area of blackening.

Please remember that the computer recognizes the size and depth of the dot according to the human command, so if the filling area is less than the set threshold, the computer will consider that it has not been painted, and if you do not wipe it clean when you modify the answer, the blackness will be greater than the critical value, the computer will consider that multiple options have been painted, and the answer will be judged to be wrong.

At the same time, it is important to ensure that the answer sheet is not stained by ink and other substances, otherwise once the option is covered by stains, the computer will also think that the option has been painted, causing unnecessary losses to the score.

Use a 2B pencil to paint the card, leave carbon on the card, and then scan your information through the scanner to enter your information, and compare it with the designed answer, all done by the computer.

If it's an answer sheet, go straight to the computer and the computer will scan your scribbles and then you can know the answer you chose. Then compare the correct answer to judge your answer.

The multiple-choice questions were changed by the computer. I don't know exactly how to change it. 、

Computer online marking, also known as electronic marking. Its main work includes scanning, marking, supervision, review, traceability, archiving, etc. Where:

1.Scanning of test papers.

1) High-speed scanning: support multi-subject mixing, high-speed double-sided scanning, OMR scanning recognition, and scanning statistics.

2) Mixed scanning: It supports mixed scanning of a variety of question card styles, including general and special question cards, etc., and can support the marking of hundreds of courses.

3) Intelligent recognition: Objective questions do not need to be reviewed, they are automatically identified during the scanning process, and the results will be generated at the end of the scanning, with high accuracy.

4) Problem identification: Automatically identify problem test papers, absentee information, etc.

2.Convenient marking.

1) Flexible scoring: keyboard scores, mouse scores, trajectory scores, intelligent back-evaluation, and question file submission.

2) Complete functions: support score review, return evaluation, re-marking, score analysis, etc. Progress is controllable and visible.

3) Multi-mode marking: support one-evaluation, two-evaluation, multi-evaluation scoring mode, a variety of scoring modes, and select and assign according to demand.

5) Score report: automatic bonus points, registration points, statistics. After the scoring is completed, the analysis report can be generated. Segmented statistics can be made.

6) Statistical analysis: question scores, question class scores; Mean score, highest and lowest score, scoring rate, standard deviation.

Other statistical indicators.

7) Data interface: support custom fields, one-click export of Excel and PDF, and provide standard interfaces to facilitate docking with external platforms.

3.Marking track trace.

1) Information traceability: trace the identification results, trace the scoring of objective questions, and trace the process of scoring subjective questions.

2) Score review: unique score review design to meet the highest requirements of the examination management; Support custom query review of the whole volume, large questions, and small questions.

3) Convenient inquiry: candidates can directly access the test papers; Query the candidate's answer sheet information (answers, scores, scoring, etc.), and the display and storage of the test paper support the restoration and storage of the original paper's marking process.

4.Marking supervision.

1) Progress supervision: inquire about the progress of marking, the progress of marking by subject, the teacher's marking, etc., online collaboration, and scientific management.

2) Multi-dimensional monitoring: multi-dimensional tasks such as subject marking, markers, and marking tasks can be monitored.

3) Quality management.

The multi-evaluation mechanism, task monitoring, trial evaluation, advanced arbitration, and supervision of the slip process meet the requirements of the high-level examination. Process invigilation: Difference analysis, error judgment, and whole-process supervision are carried out during marking.

4) Permission management.

Support multi-level authority management, and the designated personnel manage the subjects and marking.

When exams begin, you have to be prepared as a teacher. One of the most important things is to clean up the computer, clean up the garbage, and see if the Internet is normal. Because grading is a task, there is a time limit.

To install a marking software, we are here to install a marking software for the school - the marking client. This software will be uniformly arranged in the school, and it is a unified requirement of the superior unit. You just have to listen to the department's arrangement.

After getting the client software, you have to activate and install it yourself, follow the prompts, and do it step by step. Mounts to the easiest place on the desktop to see.

The password is required from the management department of the department, and the password is unified and can be modified. Generally, the username is your own name pinyin, ask it yourself. Input, try to log in, the superior unit is waiting for the exam to be all over before opening the marking system, you can try it yourself before opening, and be proficient.

After the superior opens the scoring system, log in in time. In fact, the school has already reported the list of people involved in grading, and the relevant person in charge has already arranged your grading questions according to certain conditions.

After logging in to your account, your marking task will be displayed on the page, only the content of the questions you should do, and you can't see the other questions, and you occasionally see the sporadic answers to other questions, which is also the reason why the scan is not done well.

The marking process is still a lot less troublesome than paper marking, although you can read the questions, score, turn the page, the speed is much faster than the old-fashioned marking.

You can check the number of graders, speed, the amount of marking, etc., the online entries are very clear, and after a long time, you will find a way to mark your own faster speed.

I've been hearing about computer grading for a long time! But how does the computer mark the papers? I didn't know. Yesterday, I was fortunate enough to be arranged to take the fourth-grade national unified examination to revise the papers, and I finally understood.

Through computer scanning, the answers to each question in the student's test paper are stored in the computer, and we change the essay question, and only see the composition written by the student in the computer, and only the answer in the answer area can be seen, and some students write the text outside the grid and cannot see it.

Computer marking is more convenient and faster than ordinary Guigang correction papers, and teachers in the whole county can do it at the same time, which reduces the trouble of turning over the test papers, and the computer automatically deploys the test papers, which will not cause accumulation, and the work efficiency is improved.

But sometimes there are problems, it turns out that the workload of each of us is 300 test papers, I changed to more than 40 years, the computer can not display the test papers, and wait for a long time before the system re-releases the test papers.

This time, it was the fourth-grade test paper in the county, and it was found that many students had poor handwriting, sloppy handwriting, and many typos.

There are also some students who can't read the questions and even write the essay questions incorrectly. Topic stipulation: One thing that made me anxious, some students wrote:

My heart was pounding", "something I will never forget". There are many students who write about something that makes me anxious, but there is not a single word in the whole text that describes the urgency. There are even self-written titles and one or two lines of text, and there are also blank texts in the whole text, and not a word is written.

Why is this happening? The real reason is that students write less and read less! Composition is really not something that the teacher has practiced with students in class, and if you have practiced writing once or twice in class, children may not be able to write.

A child's writing ability must be formed through reading and writing more. From the first grade, children insist on reading every day, and from the third grade, they insist on writing a diary every day, imitation writing, etc., so that children can gradually develop writing skills.

Computer marking is a process that uses computer technology to automatically mark and correct test papers. The following is a brief explanation of the basic principles and steps of computer marking:

1.Scan test papers: Convert paper test papers into electronic documents using a scanner. The scanner converts the answers, marks, and symbols on the test paper into an electronic format for processing and analysis by a computer.

2.Image processing: The computer processes the scanned image and performs image enhancement, image correction, cropping and other operations to obtain a clear image of the test paper.

3.Data extraction: Through optical character recognition (OCR) or other related technologies, the relevant text and answers in the test paper are extracted and converted, and the data that can be processed by the computer is excavated or not.

This data will be used to compare with standard answers or for automatic scoring.

4.Scoring algorithm: Develop corresponding scoring algorithms according to specific question types and scoring criteria.

For objective questions, such as multiple-choice or fill-in-the-blank questions, scoring can be made by comparing the consistency of a student's answer with the standard answer. For subjective questions, such as question and answer questions or essay questions, you need to set up corresponding scoring rules or models, and score them through text similarity, keyword matching, grammar analysis, etc.

5.Result generation: Based on the scores obtained by the grading algorithm, a grading report is generated that includes student scores, comments, and other results. These results can be output as electronic documents or printed as needed.

6.Manual proofreading: In order to ensure the accuracy and reliability of the score, a certain amount of manual proofreading is usually carried out. Some of the test papers will be reviewed by professional teachers or supervisors, and verified and corrected against the computer-based grading results.

It should be pointed out that there may be some differences in computer marking technology in different application scenarios and test question types. The specific computer marking system and algorithm will vary depending on the application requirements, but in general, the above steps and principles are the basic processes applicable to most computer marking. <>