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I need a lightweight web application that lets a user drag-and-drop a pharmaceutical PDF—whether it’s a drug label, clinical study, SOP, regulatory guideline, or research paper—and then type a question in English to receive an answer drawn from that document. The core search layer must blend straightforward keyword matching with a vector-based approach so the system can return contextually relevant passages rather than just isolated hits. Here is what will make the build a success: • Upload interface restricted to PDF for this first release. • Dual search pipeline: classic keyword lookup plus contextual retrieval using embeddings so follow-up questions such as “What were the primary endpoints?” surface the right section immediately. • Chat-style UI that echoes the question, displays a concise answer, and highlights the cited sentences inside the document. • English is the only language requirement at this stage. • Clean, self-contained code (Python, Node, or comparable stack), clear setup instructions, and a short README explaining how to replace or scale the embedding model later if we decide to add full NLP. The deliverable is a functioning proof of concept I can demo to non-technical stakeholders: deployable on a standard cloud VM or run locally with a single command, no hidden dependencies, and no external data leakage.
Project ID: 40722618
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Hi there, You need a demo that non-technical stakeholders can try on a real pharma PDF, with answers that point to the exact sentences and no data leaving the machine. My approach: - Drag-and-drop PDF upload (FastAPI + [login to view URL]), parsed with page and position tracking, chunked by section heading - Hybrid search: BM25 keyword plus local embeddings, fused with reciprocal rank fusion, so "What were the primary endpoints?" lands on the right section - Chat-style answers from a locally run LLM, with the cited sentences highlighted in the PDF viewer - Everything runs offline, with no external API calls, and a single `docker compose up` - README covering how to swap or scale the embedding model later Timeline: ~2 weeks, with a working demo by day 7 and 15 days of free bug support. Estimate after scoping. We're a two-person team at InnoAI Labs. We built an AI system extracting structured data from complex engineering drawings using OCR, vision and LLMs ([login to view URL]). Portfolio: [login to view URL] | [login to view URL] Do the PDFs include scanned pages, or are they all text-based? Happy to chat. When works for you? — Team InnoAI Labs Recent review (Vishal, 5.0★): "They built and deployed our platform end-to-end, including backend, RBAC, CI/CD... ahead of schedule."
₹3,500 INR in 2 days
0.0
0.0
28 freelancers are bidding on average ₹22,396 INR for this job

Building a self-contained hybrid search Q&A tool for pharma PDFs requires deterministic text chunking, combined BM25 lexical search and dense vector retrieval, and precise sentence citation without data leakage. ✅ Implement a clean Python web app with PDF upload handling, page/sentence boundary parsing, and interactive citation highlighting. ✅ Build the dual retrieval pipeline combining BM25 keyword ranking with local embeddings (sentence-transformers + ChromaDB/FAISS) via reciprocal rank fusion. ✅ Package everything with Docker Compose for single-command startup, ensuring zero external data leakage and modular configuration for swapping models. ✅ Comprehensive README and setup scripts tested across Linux VM and local environments. ✅ 10+ years production experience | 400+ completed projects | 320+ five-star reviews ✅ Microsoft® Certified: MCSA | MCSE | MCT & cPanel Certified (CWSA-2) Do you plan to run generation via a local quantized model (like Ollama) for 100% offline air-gapped execution, or connect an external API key for the summarization step? I can deliver this in 1 day(s) for 3600 INR and can jump on it right now.
₹3,600 INR in 1 day
5.1
5.1

⚠️ If you're not happy, you don’t pay. ⚠️ Hi there, Thank you for checking my proposal and sharing the detailed project brief. I can build your lightweight web application using Python and Node with a user-friendly design. I will deliver: • A PDF upload interface restricted to pharmaceutical documents • A dual search pipeline combining keyword lookup with vector-based contextual retrieval • An intuitive chat-style UI that displays questions, concise answers, and highlighted document citations • Clean and self-contained code with clear setup instructions • A comprehensive README for later embedding model adjustments You will also receive: • Documentation for easy scalability • Ongoing support during initial deployment I am confident I can execute your vision professionally and efficiently. Looking forward to discussing the timeline and next steps. Best regards, Chirag Pipal.
₹5,000 INR in 7 days
4.9
4.9

For effective Q&A on complex pharmaceutical PDFs, I'd prioritize creating a dual search approach that combines classic keyword matching with vector embeddings to capture context. The drag-and-drop interface would strictly accept PDFs, feeding into a lightweight Python-based backend managing both search pipelines. The chat UI would display questions alongside concise answers, highlighting relevant document passages to aid clarity. Although I don't have direct proof with combined keyword/vector search in production, I have verified 5-star Python/NLP work that provides solid grounding. Clear modular code with easy embedding model updates will ensure future scalability. I’d start by setting up the upload and simple keyword search, then add embedding retrieval. This staged plan reduces complexity and risks. If you can share a sample PDF, I can validate the ingestion and retrieval steps early on.
₹7,000 INR in 14 days
4.8
4.8

Hello there, I understand you need a lightweight web application for AI-driven pharmaceutical document Q&A. I would approach this by creating a user-friendly interface for drag-and-drop PDF uploads, implementing a dual search pipeline for keyword lookup and contextual retrieval, and designing a chat-style UI for easy interaction. With expertise in Python and Node.js, I can ensure clean, self-contained code and clear setup instructions. I am excited about the opportunity to develop a proof of concept that meets your requirements and can be easily demoed to non-technical stakeholders. Thanks,
₹7,000 INR in 4 days
4.3
4.3

Hello, I have thoroughly reviewed your project requirements for developing a lightweight web application that enables users to drag-and-drop pharmaceutical PDFs and ask questions in English to retrieve relevant answers from the document. I understand the need for a dual search pipeline incorporating both keyword matching and contextual retrieval for more accurate results. With 5 years of experience in HTML, Web Development, and expertise in creating user-friendly interfaces, I am confident in delivering a solution that meets your expectations. To better understand my capabilities, please visit my portfolio: https://www.freelancer.pk/u/Aqsa4400 Let's discuss your project requirements further. Feel free to initiate a chat so we can explore the details. Best regards, Aqsa Usman
₹7,000 INR in 2 days
4.1
4.1

With over 9+ years of experience in web and mobile app development -- including AI Chatbot Development with Python -- I, Neha, am the ideal freelancer to take on your AI Pharma Document Q&A Tool project. Additionally, my expertise includes HTML and web development which is vital for creating a clean, efficient interface with a chat-style UI that displays concise answers from highlighted cited sentences within documents. I can promise you a clean, self-contained code in your preferred stack - Python/Node that will be easy to replace or scale when we move on to full NLP integration. My nine years of working have taught me the importance of effective communication and understanding client's needs. With this knowledge at hand, I assure you your proof of concept will be deployable on any platform or cloud environment you desire. Furthermore, my offer comes with an added advantage - the cost-effectiveness. I value your hard-earned money and thus pledge for an effective expenditure during the project while ensuring high-quality work. This combined with my commitment towards providing 3 months free support post-project completion makes my proposition an incredible investment for this web applications. I'm ready to turn your ideas into reality so let's bring your AI Pharma Document Q&A Tool to life!
₹17,000 INR in 7 days
4.4
4.4

Hi, I am a software engineer with over 16 years of experience building AI-assisted applications, document-processing systems, and production-ready web tools. I can develop a lightweight pharmaceutical PDF Q&A proof of concept with hybrid keyword and embedding-based retrieval, conversational follow-up support, concise answers, and sentence-level citations highlighted in the source document. I will keep the application self-contained and privacy-focused, with local document processing and no external data leakage. It will include a clean drag-and-drop chat interface, configurable models, straightforward setup, a single-command local or VM deployment, and a README explaining how to replace or scale the embedding layer later. I will also structure the retrieval flow carefully so answers remain grounded in the uploaded PDF rather than inventing unsupported information. One question: should the first release also support scanned PDFs through OCR, or only PDFs containing selectable text? Please contact me to discuss details.
₹12,500 INR in 10 days
3.1
3.1

The main challenge in a document Q&A system is not connecting an AI model — it is ensuring every answer stays grounded in the uploaded document and remains traceable to the correct source. I can help build a clean Python-based application with PDF processing, structured retrieval workflows, API-driven architecture, and a chat interface designed around reliable document-based answers. The implementation can focus on modular components for document ingestion, retrieval, citations, and future model changes, with clear setup instructions and a self-contained deployment workflow. Could you share a sample PDF, preferred AI provider (cloud API or local model), and whether the documents are text-based or require OCR processing?
₹7,500 INR in 10 days
3.1
3.1

Two things in the spec will break on real pharma PDFs, and I would rather flag them now than in week two. 1) Scanned PDFs. SOPs and regulatory guidelines are very often image-only scans with no text layer. Keyword search, embeddings and sentence highlighting all read that layer, so such a file returns an empty answer with no error. I add an OCR fallback and an explicit "this PDF has no text layer" notice, so the demo never fails silently in front of stakeholders. 2) "No external data leakage" rules out hosted embedding APIs. Sending drug labels or clinical data to a third-party endpoint is exactly the leakage you exclude, so the embedding model must run locally, with weights pinned and cached at build time so the single-command start has no surprise download. What I build: drag-and-drop PDF upload; hybrid retrieval combining BM25 keyword scoring with local vector embeddings, fused into one ranked passage set; chat UI that echoes the question, returns a concise answer and highlights the cited sentences in an inline PDF viewer; README covering setup and how to swap in a larger embedding model later. Python backend, self-contained, one command locally or on a standard cloud VM. Milestones, total INR 11500: - 4500 upload, text/OCR extraction, keyword search working end to end - 4500 local embeddings, hybrid ranking, chat answers with citations - 2500 sentence highlighting, README, deployment check I build document retrieval systems in Python and ship documented code.
₹11,500 INR in 14 days
2.3
2.3

With nearly two decades of experience across academia and the technology industry, I believe I'm thoroughly equipped to bring your vision of an AI Pharma Document Q&A Tool to life. As an AI specialist with a PhD in Artificial Intelligence, I've had extensive practical experience with machine learning, NLP and computer vision - skills that are directly applicable to this project. Being a quick learner, I can adapt to any tech stack including Python or Node successfully ensuring a clean and self-contained codebase -- just what you're looking for. I'm not just here for a one-off project either; my aim is to build long-lasting professional relationships. Therefore, as well as delivering a functioning proof of concept deployable on any standard cloud VM or run locally without hidden dependencies or external data leakage— I will also provide clear and comprehensive setup instructions as well as maintainable code that is readily auditable and modifiable.
₹1,500 INR in 7 days
2.0
2.0

Hello, I understand you need a lightweight Pharma Document Q&A Tool where users can upload pharmaceutical PDFs and ask questions to receive contextual answers with cited passages. The goal is to deliver a clean, self-contained POC that runs locally or on a cloud VM without external data leakage. Here’s what I can provide: * PDF drag-and-drop upload with document parsing and secure processing. * Hybrid retrieval combining keyword search with vector embeddings for context-aware results. * Chat-style Q&A with concise answers and highlighted cited sentences/pages from the document. I bring over 4+ years of experience in Python, Django, React, Node.js, REST APIs, and AI-integrated applications, with a strong focus on clean architecture, reliable APIs, and user-friendly interfaces. Just to clarify a few things: * Do you have a preferred embedding model or vector database for this POC? * Should the cited sentences be highlighted directly inside an integrated PDF viewer? Please come to the chat box to discuss more about your project. Best regards Indresh Kushwaha
₹7,000 INR in 7 days
2.3
2.3

Hello, I have over 10 years of experience in Python, Web Development, and AI Chatbot Development. My name is Olusoji, and I am well-equipped to handle the requirements of your project. I have carefully reviewed your project description and understand the need for a lightweight web application that allows users to drag-and-drop pharmaceutical PDFs and ask questions in English to retrieve relevant answers from the document. I am confident in my ability to develop a solution that incorporates a dual search pipeline, a chat-style UI, and a clean, self-contained codebase to meet your specifications. I would love to discuss this project further with you. Please start the chat so we can explore the details and requirements in more depth. Best regards, Olusoji
₹1,500 INR in 7 days
1.7
1.7

Hello, I need a lightweight web application that lets a user drag-and-drop a pharmaceutical PDF—whether it’s a drug label, clinical study, SOP, regulatory guideline, or research paper—and then type a question in English to receive an answer drawn from that document. The core search layer must blend straightforward keyword matching with a vector-based approach so the system can return contextually relevant passages rather than just isolated hits. Here is what will make the build a success: • Upload interface restricted to PDF for this first release. • Dual search pipeline: classic keyword lookup plus contextual retrieval using embeddings so follow-up questions such as “What were the primary endpoints?” surface the right section immediately. • Chat-style UI that echoes the question, displays a concise answer, and highlights the cited sentences inside the document. • English is the only language requirement at this stage. • Clean, self-contained code (Python, Node, or comparable stack), clear setup instructions, and a short README explaining how to replace or scale the embedding model later if we decide to add full NLP. The deliverable is a functioning proof of concept I can demo to non-technical stakeholders: deployable on a standard cloud VM or run locally with a single command, no hidden dependencies, and no external data leakage.
₹7,000 INR in 7 days
1.7
1.7

Hi I have developed several document processing systems, AI-powered applications, search platforms, and web tools that combine structured data extraction with contextual retrieval. ? The main challenge is combining keyword search and semantic retrieval so questions return the correct passages from the uploaded PDF instead of isolated or irrelevant matches. ✅ In a similar document intelligence project, I faced the challenge of extracting content from PDFs and making it searchable based on both exact terms and contextual meaning. I solved it by building a PDF ingestion pipeline that extracts and cleans the document text, splits it into meaningful chunks, indexes those chunks with a traditional keyword search layer, and generates embeddings for vector retrieval. I then combined and ranked both result sets before passing the most relevant context to the answer layer, while keeping document data isolated from external systems. ✅ As a result, users could upload documents, ask natural-language questions, retrieve relevant sections even when the wording differed from the source, and see the supporting passages associated with each answer. The application remained lightweight enough for local execution or deployment on a standard cloud VM, with a clear structure for replacing the embedding model later. I look forward to discussing the preferred stack, embedding model, PDF citation behavior, and the demo workflow for your stakeholders. Best regards Michel
₹5,000 INR in 2 days
1.8
1.8

I can build this lightweight pharmaceutical PDF RAG chatbot as a self-contained POC that runs locally or on a standard cloud VM. I have experience with AnythingLLM, RAG, document ingestion, embeddings, vector databases, LLM integrations, PDF/document chat, source citations, Python, Docker, and self-hosted AI deployments. I have already worked on an AnythingLLM-based document AI/RAG project with document uploads, vector search, citations, and Docker deployment. For your POC, I can implement: PDF drag-and-drop upload and extraction Hybrid keyword + vector/embedding retrieval Context-aware Q&A with cited/highlighted passages Clean chat-style interface Configurable embedding/vector layer Docker-based local/cloud deployment README and setup instructions Privacy-focused document processing . Timeline: Since this is a lightweight POC and I already have relevant RAG experience, I can complete the initial working version in 1–2 hours, assuming the requirements and environment are straightforward. I have done this type of work before and can show you the relevant project/examples if we start talking.
₹4,000 INR in 7 days
1.4
1.4

Hi, A lightweight web app for PDF drag-and-drop Q&A leveraging vector-based search + keyword matching is exactly my expertise. I created 10+ ?????? ?????????s with similar complexity, utilizing a robust architecture and UI elements that ensure seamless user interaction. I can build your dual search pipeline using ?????? and integrate a chat-style UI that echoes questions and highlights answers from the document, ensuring a user-friendly experience. For your project: ▸ PDF upload interface with clear constraints for the first release ▸ Vector database integration for contextual retrieval and follow-up questions ▸ Clean code with deployment instructions for easy setup on cloud VM or locally I can deliver a fully functional proof of concept you can demo confidently. Do you have a specific vector database in mind, or would you like recommendations for the best options?
₹7,000 INR in 7 days
0.7
0.7

Hi, I can build a lightweight PDF-based document Q&A web application with a clean chat-style interface. The application can support PDF uploads, document text extraction, keyword search combined with embedding-based semantic retrieval, and contextual answers based strictly on the uploaded document. I can structure the project with a Python backend, responsive HTML/CSS frontend, clear source code, setup instructions, and a README explaining the architecture and how the embedding model can be replaced or scaled later. I understand that document privacy and avoiding external data leakage are important requirements, so the application can be designed for local or controlled server deployment. I would be happy to discuss the preferred embedding/vector-search stack and deliver a working proof of concept.
₹7,000 INR in 7 days
0.0
0.0

I recently helped a business build a complete digital platform that improved their online operations, and if you’re not happy, you don’t have to pay. I can help you develop a reliable, scalable solution for your AI Pharma Document Q&A Tool. With my experience in creating user-friendly interfaces and integrating dual search pipelines, I will ensure users can easily upload PDFs and receive accurate, contextual answers. Your focus on clean code and a straightforward setup resonates with me. I specialize in Python and Node, and will deliver a chat-style UI that meets your requirements while highlighting key information from the documents. Even if you don’t end up working with me, you will get a free consultation, message me! Regards, ReonVR.
₹6,250 INR in 7 days
0.0
0.0

Hello, You want a proof of concept you can demo to non-technical stakeholders, not a research project, so I would build straight to the five points you listed. The file is parsed and chunked on upload, with page and sentence offsets kept for every chunk. Search runs twice over those chunks: BM25 keyword scoring and embedding retrieval, merged by reciprocal rank fusion. That is what makes a follow-up about primary endpoints land on the right section instead of on every page containing the word "endpoint". The chat view echoes the question, gives a concise answer, and highlights the cited sentences inside the rendered document using the offsets stored at upload. Stack is Python with FastAPI and a local vector store, no managed service. One command locally, one on a standard cloud VM. The embedding model sits behind a single interface, so replacing or scaling it later is a one-file change, and the README documents that. On data leakage: fully offline is the default, with a local embedding model and a local answer model. If a hosted LLM is acceptable for the answer step, I make it an explicit opt-in setting, with your key in your own environment and never in the code. Two completed projects on this account, both rated 5 out of 5, delivered on time and on budget. I also have merged pull requests in third-party open-source projects, each accepted by the maintainer after review. First step at no cost: send one representative PDF, a drug label or a clinical study, and I will come back with three real question-answer pairs drawn from it, cited sentences quoted. You judge retrieval quality on your own document before committing to anything. Price 7000 INR, 5 days. Days 1 to 2 parsing and the dual search layer, days 3 to 4 the chat view with citation highlighting, day 5 packaging, README and a deployment test on a clean VM. Should the proof of concept run fully offline, or is a hosted LLM acceptable for the answer step? Petro Pankov, BotCraft Group
₹7,000 INR in 5 days
0.0
0.0

You want a drag-and-drop pharma PDF Q&A tool that blends keyword and semantic search, runs locally or on a VM, and is demo-ready for non-technical stakeholders with zero data leaving the environment. Here is the plan: Python backend using FastAPI, LangChain for the retrieval pipeline, and a local sentence-transformers embedding model so no document content touches external APIs. BM25 handles keyword ranking, FAISS handles vector retrieval, results are fused and fed to a local LLM (Ollama with Mistral or similar). React frontend with drag-and-drop upload, chat UI, and PDF viewer with highlighted cited passages. Single docker-compose up gets everything running. Deliverables: fully working PoC, README covering model swap instructions for when you want to upgrade embeddings or switch to an OpenAI-compatible API, and clean setup for AWS EC2 or local Mac/Linux. I have built hybrid retrieval pipelines on regulated-industry documents before and understand why citation transparency matters when your audience is medical or compliance stakeholders. Timeline: working demo in 7 days, with a mid-point check-in at day 3. One question before I start: do you have a preferred LLM constraint, fully local only, or are you open to an optional OpenAI fallback behind an environment variable flag?
₹12,500 INR in 7 days
0.0
0.0

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