What Is the Method of Loci?

The locus is simply the ranking ratio. The position is a numerical value obtained by proportionally ranking the "one-point, one-segment" ranking published by the Educational Examinations Institute each year. The position 1253 represents the ranking of the candidates' scores, accounting for the top 12.53% of all candidates in Sichuan in that year. The position mainly solves the problem of the candidate's ranking, in order to quickly find their own performance position, and lay the foundation for filling in volunteers. The locus method is based on the locus principle, using mathematical models, military operations research, and big data analysis to assist in the college entrance examination voluntary decision-making. It is a new method suitable for Sichuan province candidates to fill in the college entrance examination. ^[1]

Locus method

Right!

The locus is simply the ranking ratio. The position is a numerical value obtained by proportionally ranking the "one-point, one-segment" ranking published by the Educational Examinations Institute each year. The position 1253 represents the ranking of the candidates' scores, accounting for the top 12.53% of all candidates in Sichuan in that year. The position mainly solves the problem of the candidate's ranking, in order to quickly find their own performance position, and lay the foundation for filling in volunteers. The locus method is based on the locus principle, using mathematical models, military operations research, and big data analysis to assist in the college entrance examination voluntary decision-making. It is a new method suitable for Sichuan province candidates to fill in the college entrance examination. ^[1]

Chinese name

Locus method

First, the locus and locus method ^[1]

In simple terms, the position is the ranking ratio. The position is a numerical value obtained by proportionally ranking the "one-point, one-segment" ranking published by the Educational Examinations Institute each year. The unit is one ten-thousandth. The position 1253 indicates that the ranking accounted for the top 12.53% of all candidates in the year. ). The position mainly solves the problem of the candidate's ranking, in order to quickly find their own performance position, and lay the foundation for filling in volunteers. The locus method is a method for making voluntary college entrance examination decisions based on the location. It is exclusively introduced by Chengdu Wenrude Education Technology Co., Ltd. It is suitable for Sichuan province candidates for voluntary college entrance examination. It is a brand new voluntary decision-making scheme.

Admission is in fact based on the candidate's ranking, and "one point by one paragraph" best reflects the candidate's ranking. We know that the number of candidates changes every year, the difficulty of the exam questions is different every year, and the "one point by one paragraph" is different each year. How to compare the "one-by-one paragraph" in 2016 with the previous years, we must standardize the "one-by-one paragraph", so that we have a clear frame of reference. We can report volunteers through the scores corresponding to this frame of reference. For example, every year the position of Tsinghua University of Peking University is 1-2, that is, the top 0.01-0.02%. No matter how much the maximum score changes that year and the line difference, as long as the position is 1-2, it may be selected by Peking University Tsinghua University Admission.

Two, site method verification ^[1]

We validated the enrollment of Sichuan University, Wuhan University, Neijiang Teachers College, Leshan Teachers College, Sichuan Preschool Teachers College, and Chengdu Teachers College in 2015. The average line deviation and average from 2011 to 2014 were used as the methods. Location, plus a certain error value for verification. The error value of the line difference is increased by 10 points and 20 points, respectively, and the position method is added by 0 points and 6 points, respectively. The actual admission situation is used to verify how many majors can be accepted, and the admission hit rate is calculated. The verification results are as follows:

We can see that the average prediction error of the line difference method is -19.2 points, which proves that the admission control line was indeed lowered by nearly 20 points in 2015. When the error value of the line difference method is 20 points, the acceptance rate is only 77%. The average error of the locus method is only -1.2 points. Direct verification shows that the admission hit rate can reach 76.82%, which is basically equivalent to the line difference method +20 points. Adding 6 points of error value, the admission hit rate reaches 96.7%, of which the second hospital The three test items of the school can reach the 100% acceptance rate without adding error values. It can be seen that the prediction is very accurate and can be used to guide the college entrance examination volunteers to fill in.

The specialty situation is different, the line difference method and the locus method are more consistent, and both can achieve a higher admission hit rate. However, the locus method is closer to the average admission score, and while the admission rate is guaranteed, the waste score is the smallest.

Why not take a 100% hit rate? In order to achieve a 100% admission hit rate, we only keep increasing the error value, but this will cause another problem, the problem of wasted scores. The best effect of our prediction is that the predicted score is in the average score position. Do not waste points, so it is unscientific to require a 100% admission rate.

Therefore, we suggest that using the locus prediction method, an error value of 6 points can be taken (the science and technical colleges of the two universities may not take the error value).

The scientific nature of the locus method ^[1]

For a long time, colleges and universities have formed a habitual ranking in practice. For example, the highest score is always Peking University Tsinghua University, followed by the People's Congress, Zhejiang University, Fudan University, and Shanghai Jiaotong University. Social consensus has been formed. This is also the case in a region. For example, in Sichuan, the best universities are Sichuan University, Electronic Science and Technology University, Southwest Jiaotong University, and Southwestern University of Finance and Economics, followed by Southwest Petroleum University, Chengdu University of Technology, Sichuan Normal University, Sichuan Agricultural University, and Southwest University of Science and Technology. . Similarly, the majors of various universities have also reached consensus. For example, when it comes to the best majors of Sichuan University, people naturally think of stomatology and clinical medicine. Coupled with the continuous ranking of universities and the number of majors in the society, candidates are consciously or unconsciously obeying this ranking habit when they report their wishes. Summarizing the ranking habits over the years, it will be found that the admission scores of various colleges and universities are regular, which is the basis of the location method for prediction. The locus method is actually theorizing and refining this law.

So what are the advantages of the locus method?

The first is to eliminate the influence of artificially determining the admission control line. The locus method is not related to the admission control line, which excludes the influence of artificially determining the admission control line. Even in the case of artificially lowering the admission control line in 2015, the locus method can still predict admission points.

The second is to use the latest site data for prediction. Before filling in the volunteers, the line difference method can only be based on historical data, while the locus method can obtain new locus data based on the "segment by paragraph" published at the same time as the college entrance examination results, so the reliability has been further improved.

The third is to exclude the effects of high and low year. The position reflects the distribution of grades. Therefore, it can solve the problem of different grades of "gold content" in "high score years" and "low score years", so accuracy can be guaranteed.

Fourth, the weighting algorithm makes the location more accurate. When performing weighted calculations, the calculation weight of the most recent years is greater than the calculation weight of more distant years. Appropriate corrections to the occasional score fluctuations are made to make the prediction result closer to the actual admission score.

In the admissions in 2015, lowering the admission control line brought tangible benefits to the admissions colleges. Almost all colleges and universities completed the one-time application (the second-round undergraduate program approval rate was 99.73%), which reduced In the past, due to the inconvenience of insufficient recruitment, many colleges and universities felt that the students had a good source of students, and they planned to increase programs for Sichuan. Among them, there were 624 undergraduates and 6840 undergraduates. Therefore, although lowering the admission control line will cause trouble for candidates, it is beneficial to admission itself. It is foreseeable that the method of lowering the admission control line will become the "new normal" for the college entrance examination in 2016 and beyond. In this case, the advantages of the locus method are prominent, and the line difference method is even more declining. Therefore, using the locus method developed by our company for voluntary filing analysis is your best choice.

In order to solve the relative complexity of the locus method, Wenrude College Entrance Examination Volunteer Network released the site correspondence table since 2012 based on historical admissions data, as well as the equivalent scores and positions of various majors in Sichuan admissions colleges. Based on the average weighted positions, and based on this, it can launch intelligent recommendation colleges, select majors by colleges, select colleges by majors, site analysis and prediction, and systematically evaluate volunteers, etc., which can escort volunteers in Sichuan .

No prediction can be 100% accurate. We must acknowledge that the locus method is not a panacea. For new enrollment colleges and majors that do not have historical data support, the change from two enrollment majors to one enrollment major, the impact of the name change of colleges from "XX College" to "XX University", and a very small number of admissions For colleges and universities outside the province, the location method may not be ideal enough. Candidates and parents should analyze and judge according to various situations and choose their own volunteers.