SShortSingh.
TopTechnologyAI & MLStartupsProgrammingScienceBusinessFinanceCrypto & Web3World
Back to feed
Programming

How JEE Main converts marks to percentiles and ranks across 19 shifts

0
·4 views

About 15 lakh students take JEE Main across 19 shifts, each with a different paper, so raw marks cannot be compared directly. The testing agency NTA converts marks to a percentile calculated within each shift, meaning the same score can yield a higher percentile in a tougher shift. Because NTA does not publish a marks-to-percentile table, predictors must build one from published (marks, percentile) pairs and interpolate between them. Rank is then estimated by applying the share of candidates above a given percentile to the total number of candidates across all shifts. The author notes that such predictions are estimates and recommends displaying a range rather than a single figure.

Read the full story at DEV Community

This is an AI-generated summary. ShortSingh links to the original source for the complete article.

Discussion (0)

Log in to join the discussion and vote.

Log in

Related stories

0
ProgrammingDEV Community ·

ShortSingh: Browser Tool Sorts Lines Numerically or Case-Sensitively, Keeping Text Local

OnePassApps has described its Text Studio's Sort lines tab, which runs entirely in the browser tab so files are not uploaded. The tool offers A-to-Z or Z-to-A ordering, a case-sensitive option, and natural number ordering, which is enabled by default. With natural ordering on, numbers sort by numeric value, so 9 comes before 10, whereas plain text sorting places 10 first. The article notes that case-sensitivity only changes results when two lines differ solely in capitalization, and that natural ordering suits IDs but may be better turned off for version strings.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

High-accuracy classifier can still miss every useful research candidate

A synthetic teaching example shows that a screening classifier scoring 95% accuracy on 100 records can find none of the five positive candidates. The article explains why accuracy alone hides which cases were missed. Precision and recall are compared across two constructed prediction sets, showing that catching more positives can come with more false positives. The author stresses that the labels and predictions are invented for illustration and are not measurements from a real model or laboratory. A short Python audit script is provided that computes confusion-matrix counts, accuracy, precision and recall without external data or dependencies.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

Why '.map is not a function' Errors Occur: The Value Is Not an Array

A common JavaScript error, '.map is not a function', does not signal a problem with the map method itself. It means the value being called is not an array, such as an object, a Set, or an unparsed string. Array-like values such as NodeLists also trigger it, since they lack array methods. Developers can diagnose the issue by logging the value's type and checking it with Array.isArray. Depending on the cause, the fix may involve accessing the nested array, converting the value with spread syntax or Array.from, parsing JSON, or using Object.entries.

0 comments Read more at DEV Community
0
ProgrammingDEV Community ·

WordPress 7.1.4 Fixes Core Security Flaws, Including Upgrade-Process Code Execution Risk

WordPress released version 7.1.4 on October 28, 2026 to patch several security vulnerabilities in its Core software. The most serious issue is a race condition in the upgrade process that could allow remote code execution under specific conditions. The update also addresses stored cross-site scripting flaws in blocks, the Customizer and the Interactivity API, plus an information disclosure bug that could expose unpublished Customizer changes. NHS England reported widespread scanning and exploitation attempts tied to the upgrade-process vulnerability on October 30. Experts advise site owners to back up their files and database, install the appropriate security release, and verify their site, noting that updating does not remove malware from an already compromised site.

0 comments Read more at DEV Community