Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
comparison with previously
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "comparison with previously" is not correct in English.
It seems to be missing a noun or context to clarify what is being compared. You can use it in contexts where you want to discuss a comparison with something that has occurred before, but it needs to be rephrased for clarity. Example: "In comparison with previously collected data, the results show a significant improvement."
⚠ May contain grammatical issues
Science
Alternative expressions(2)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
59 human-written examples
Table 3 Comparison with previously proposed TRNG.
A comprehensive comparison with previously reported catalysts is given in Table 1.
Science
The new structures were elucidated through extensive spectroscopic analyses and by comparison with previously reported data.
The results are validated by the comparison with previously reported studies.
Science
A normalised Patlak analysis approach was also performed to enable comparison with previously published results.
Science
The accuracy of present code is validated through comparison with previously published results.
Science
The influence of the membrane characteristics is also drawn from comparison with previously published results.
Science
The present model is validated by comparison with previously reported model and the FEM model.
However, both are faster in comparison with previously reported parallel decimal multipliers.
Science
Their structures were identified through the spectroscopic analysis in comparison with previously reported data.
In comparison with previously reported structures, our design has the advantage of simplicity and cost-effectivity.
Science
Expert writing Tips
Best practice
For clarity, specify what is being compared by adding a noun after "previously", such as "previously reported data" or "previously used methods".
Common error
Avoid using the phrase without specifying what's being compared. For example, instead of saying "In comparison with previously", specify "In "comparison with previously published data"".
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "comparison with previously" functions as a prepositional phrase that usually modifies a verb or noun, indicating a comparison to something that has occurred or existed before. It often requires further context for grammatical correctness, as highlighted by Ludwig.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
The phrase "comparison with previously" is frequently used, particularly in scientific literature, to relate current findings to prior research. However, according to Ludwig, the phrase is often grammatically incomplete and requires a noun to specify what is being compared. For instance, ""comparison with previously published data"" is more correct. While widely used, aiming for clarity by specifying the object of comparison or using alternatives like "compared to before" enhances the precision and professionalism of your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
in comparison to earlier findings
Adds specificity by referring to earlier findings, suitable in academic writing.
compared to before
This alternative is shorter and less formal, omitting "previously".
compared against past
This is simpler and more direct, replacing "previously" with "past".
in relation to earlier
This option is a slightly more verbose but equally valid substitution.
in contrast to what came before
This alternative is more formal and emphasizes the difference or opposition.
when compared with the past
Emphasizes the temporal aspect of the comparison, explicitly mentioning the past.
relative to prior instances
This alternative uses more technical language, suitable for formal contexts.
as opposed to former
This phrase highlights a contrast with a previous state or condition.
assessed against existing
Focuses on evaluation in light of what already exists, not necessarily something that happened previously.
evaluated with respect to established
Similar to "assessed against existing", highlighting an evaluation process.
FAQs
Is "comparison with previously" grammatically correct?
According to Ludwig AI, the phrase "comparison with previously" is not grammatically correct. It often needs a noun to clarify what is being compared, such as ""comparison with previously published data"".
What are some alternatives to "comparison with previously"?
Alternatives include phrases like "compared to before", "relative to prior instances", or "in relation to earlier", depending on the context.
How can I use "comparison with previously" in a sentence correctly?
To use it correctly, specify what is being compared. For example, "The results are validated by "comparison with previously reported studies"" is better than "The results are validated by comparison with previously".
What's the difference between "comparison with previously" and "comparison with earlier"?
"Comparison with earlier" is grammatically sound, while "comparison with previously" is often considered incorrect because it lacks a specified object of comparison. The word "previously" needs a noun or context to clarify what is being referred to.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested