Topic Finder Research gap finder
for academic papers
Upload the PDF or Word papers behind your study, and Topic Finder suggests research gaps in up to six categories, each shown with a supporting reference. It gives you a grounded starting point for choosing your next research topic.
Sign-in required · Free: up to 3 papers per analysis · Premium: up to 10.
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Selected Files (3)
nwosu-2024-gfm-inverter-stability-review.pdf
2.87 MB
takahashi-2023-bess-curtailment-review.docx
1.14 MB
banerjee-2025-vre-forecast-reserves.pdf
3.36 MB
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Topic Finder upload card · three review papers selected, Free plan view.
PDF and Word uploadsSix gap categoriesSupporting reference per gap
Overview
A research topic generator grounded in the papers you choose
Topic Finder is a research gap finder for students and researchers who already have a set of relevant papers and need a defensible direction for a thesis, dissertation, or new project. Unlike a generic research topic generator, it analyzes the PDF or Word files you upload and returns possible gaps grouped into categories, from methodological to interdisciplinary. Each suggestion comes with a supporting reference, so you can return to the source and judge whether the gap really holds. Use it after an initial literature search, or whenever you want a structured way to discuss options with a supervisor. Treat every result as a starting point to verify: it reflects the papers you supplied, not the entire published literature.
Add one to three PDF or Word (.docx) papers on the Free plan, or up to ten on Premium, and Topic Finder evaluates them together. Because the analysis starts from documents you selected rather than a blank prompt, it works differently from an AI research topic generator: the suggestions start from your field and the sources you chose.
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Six research gap categories
Results are grouped into methodological, context-specific, theoretical, technological, data-driven, and interdisciplinary gaps. The grouping shows whether an opportunity concerns how studies were designed, where they took place, which theories they rely on, which tools they use, what data they lack, or which fields they have not yet connected. Categories without a suggestion are left out.
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Supporting references and saved history
Every suggested topic is shown with a supporting reference, and a reference list closes the results, so you can check each gap against its source. Completed analyses appear under Recent Analyses, where you can reopen any of your ten most recent results or delete the ones you no longer need.
How it works
Three steps from your papers
to a shortlist of gaps
01
Collect a focused set of papers
Choose recent, closely related papers from your own literature search; the workspace recommends at least three review articles from the past three years. Upload PDF or Word (.docx) files of up to 20 MB each, and check that PDFs contain readable text rather than scanned images.
02
Run the analysis and review each gap
Select Upload & Run. Topic Finder evaluates your papers, then presents suggested topics by category. Read each suggestion with its supporting reference, and note which gaps fit your interests, your skills, and the data or methods you can realistically access.
03
Validate before you commit
Open the cited sources, search for newer work on your shortlisted gaps, and discuss the strongest options with your supervisor or co-authors. The analysis stays in Recent Analyses, so you can return to it while you refine your topic.
Research Gaps in Renewable Energy Grid Integration
Methodological Gap
Most stability assessments of grid-forming inverters in the reviewed work rely on small-signal models or electromagnetic transient simulations of a single benchmark test system. Hardware-in-the-loop or field trials with several grid-forming units operating in parallel could test whether the reported damping margins hold under realistic network impedances.
Reference: Nwosu, C. E., Al-Masri, R., & Holmberg, E. (2024). Stability assessment of grid-forming inverters in low-inertia networks: Methods, test systems and validation practices. Journal of Power Grid Dynamics, 11(3), 214–239. https://doi.org/10.5555/jpgd.2024.11.3.214
Context-Specific Gap
Studies on sizing and siting batteries to reduce solar curtailment draw mainly on distribution networks in Europe, East Asia and Australia. Long, weak rural feeders in sub-Saharan Africa and South Asia, where voltage limits rather than export caps often drive curtailment, remain largely unexamined.
Reference: Takahashi, Y., & Moreno-Ruiz, A. (2023). Battery storage for curtailment reduction in high-renewable distribution feeders: A systematic review of sizing and siting studies. Renewable Grid Integration Review, 7(2), 88–112. https://doi.org/10.5555/rgir.2023.07.088
References
Nwosu, C. E., Al-Masri, R., & Holmberg, E. (2024). Stability assessment of grid-forming inverters in low-inertia networks: Methods, test systems and validation practices. Journal of Power Grid Dynamics, 11(3), 214–239. https://doi.org/10.5555/jpgd.2024.11.3.214
Takahashi, Y., & Moreno-Ruiz, A. (2023). Battery storage for curtailment reduction in high-renewable distribution feeders: A systematic review of sizing and siting studies. Renewable Grid Integration Review, 7(2), 88–112. https://doi.org/10.5555/rgir.2023.07.088
Banerjee, S., Wiśniewski, J., & Ogunleye, T. O. (2025). Probabilistic wind and solar forecasts in reserve scheduling: A review of evaluation practice. Journal of Renewable Dispatch and Forecasting, 4(1), 1–27. https://doi.org/10.5555/jrdf.2025.04.001
Topic Finder results for three review papers on renewable energy grid integration: a methodological gap and a context-specific gap, each with its supporting reference, followed by the reference list.
Inputs, outputs & coverage
What Topic Finder reads,
returns, and leaves to you
Topic Finder is designed for focused sets of academic papers. These boundaries help you decide whether it suits the stage your project has reached.
PDF or Word (.docx) research papers, up to 20 MB per file. Free accounts can include up to 3 files per analysis and Premium accounts up to 10. You need to be signed in to run an analysis.
Output
Suggested topics grouped into up to six gap categories, each with a supporting reference, together with a results title and reference list when the analysis provides them.
Coverage
The analysis is built around the papers you upload, so suggestions are as broad or as narrow as your selection. Build a wider reading list first if your field is new to you.
Limitations
A suggested gap shows what your selected papers leave open, not proof that nobody has studied it. Image-only scans may yield few or no results, and every suggestion needs checking against its source.
Topic Finder accepts PDF and Word (.docx) files of up to 20 MB each. Other formats, including older .doc files, are not accepted at upload. For the best results, use text-based PDFs, such as those downloaded from a publisher or exported from a reference manager. Scanned pages that contain only images may give the analysis little to work with. If a file is over the size limit, try a version without large supplementary material.
How many papers can I upload in one analysis?
Free accounts can add up to three papers per analysis, and Premium accounts up to ten. The workspace shows a running file count as you add papers and keeps Upload & Run disabled until your selection is within your plan's limit. More papers are not always better: a focused set of recent, closely related studies, ideally including at least three review articles from the past three years, gives the analysis a clearer picture of your area.
What do the six research gap categories mean?
Methodological gaps concern how studies were designed or measured. Context-specific gaps point to populations, settings, or regions that remain under-studied. Theoretical gaps involve frameworks that have not been applied or tested. Technological gaps relate to tools or techniques not yet used. Data-driven gaps highlight missing, limited, or outdated data. Interdisciplinary gaps suggest connections between fields that the papers have not made. A category appears only when the analysis returns a suggestion for it.
Can an AI research gap finder prove my topic is novel?
No. Topic Finder shows what appears open within the papers you uploaded, which is a useful first filter but not evidence of novelty across all published research. Before committing, read the supporting reference for each shortlisted gap, search for recent studies with Article Finder or your library's databases, and check theses and preprints in your field. Your supervisor or co-authors are best placed to judge whether a gap is significant, feasible, and suitable for your degree or project.