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      <image:caption>Accessibility in AI Chatbots: WCAG Compliance for Conversati</image:caption>
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      <image:caption>Bias in Retrieval Chatbots: Sources and Audits</image:caption>
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      <image:caption>BM25 in the Browser: Field-Weighted Sparse Retrieval Without</image:caption>
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      <image:caption>The Math of BM25: A Worked Example</image:caption>
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      <image:caption>BM25 vs Dense Retrieval — ReLU.chat</image:caption>
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      <image:caption>The Real Cost of Cosine Similarity in JavaScript</image:caption>
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      <image:caption>Chunking Strategies for Knowledge Bases: A Practical Guide</image:caption>
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      <image:caption>Conversation State Machines: Modes, Intents, Routing</image:caption>
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      <image:caption>Cosine Similarity and Vector Search: The Math Explained</image:caption>
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      <image:caption>Debugging In-Browser ML: Profiling, Logging &amp; Fallbacks</image:caption>
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      <image:caption>Dense-Sparse Ensemble Ranking: Combining BM25 and Embeddings</image:caption>
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      <image:caption>Dot Product and Cosine Similarity, Step by Step</image:caption>
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      <image:caption>Float32 vs Float64 for In-Browser ML: Precision Trade-Offs</image:caption>
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      <image:caption>Follow-Up Detection: 20 Patterns That Make Chatbots Conversa</image:caption>
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      <image:caption>Data Leakage: Split by Entity Before You Train</image:caption>
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      <image:caption>Heuristic Fallback for Cold-Start AI — ReLU.chat</image:caption>
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      <image:caption>How Browser-Based Chatbots Work — On-Device NLP</image:caption>
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      <image:caption>IndexedDB for On-Device AI: Embeddings and Session State</image:caption>
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      <image:caption>Int8 Quantization: 4x Faster MLP in the Browser</image:caption>
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      <image:caption>INT8 Quantization Explained: FP32 to 8-Bit Model Weights</image:caption>
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      <image:caption>KaTeX vs MathJax: Rendering Math in the Browser</image:caption>
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    <loc>https://relu.chat/blog/knowledge-base-fragments-fields-metadata/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/blog/knowledge-base-fragments-fields-metadata.png</image:loc>
      <image:caption>How Knowledge Bases Are Structured: Fragments and Metadata</image:caption>
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    <lastmod>2026-10-01</lastmod>
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      <image:caption>Fragment Composition vs LLM Generation — ReLU.chat</image:caption>
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      <image:caption>The 400ms Response Rule for Chat UI — ReLU.chat</image:caption>
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    <lastmod>2026-10-01</lastmod>
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      <image:caption>Least Squares Without Computing an Inverse</image:caption>
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      <image:caption>Linguistic Connectors for Chatbots — ReLU.chat</image:caption>
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      <image:caption>Local Chat Privacy: What Still Uses the Network?</image:caption>
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      <image:caption>Memory Management in Long Browser Chat Sessions</image:caption>
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      <image:caption>Small Distilled Models Beat Big Ones on Edge</image:caption>
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      <image:caption>NER Without an LLM: Regex + Fuzzy Matching</image:caption>
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      <image:caption>Find a Nash Equilibrium with Best Responses</image:caption>
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    <lastmod>2026-10-01</lastmod>
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      <image:caption>Offline-First Chat Architecture: Queues, Retries, Sync-Free</image:caption>
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    <loc>https://relu.chat/blog/onnx-runtime-web-quantization/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/blog/onnx-quantization.png</image:loc>
      <image:caption>ONNX Runtime Web + INT8 Quantization — ReLU.chat</image:caption>
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    <loc>https://relu.chat/blog/ppo-reward-design-policy-network/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/blog/ppo-reward-design.png</image:loc>
      <image:caption>PPO Reward Design for Chatbots — ReLU.chat</image:caption>
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    <loc>https://relu.chat/blog/precision-recall-small-example/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:caption>Precision and Recall: A 100-Case Example</image:caption>
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    <loc>https://relu.chat/blog/privacy-checklist-browser-ai/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:caption>Privacy Checklist for Browser-Based AI</image:caption>
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      <image:caption>Privacy-First AI in the Browser — ReLU.chat</image:caption>
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    <lastmod>2026-10-01</lastmod>
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      <image:caption>Progressive Loading: BOW to MLP to Transformer in 3 Stages</image:caption>
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    <loc>https://relu.chat/blog/progressive-streaming-rendering-chatbots/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/blog/progressive-streaming-rendering-chatbots.png</image:loc>
      <image:caption>Progressive Streaming Rendering: Making Chatbots Feel Native</image:caption>
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    <loc>https://relu.chat/blog/prototype-intent-classification/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:caption>Intent Classification with Prototype Embeddings</image:caption>
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    <loc>https://relu.chat/blog/q-learning-sarsa-worked-example/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:caption>Q-learning vs SARSA: One Update, Worked Through</image:caption>
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    <loc>https://relu.chat/blog/query-expansion-without-llm/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:caption>Query Expansion Without an LLM: Synonyms, Spelling, Boosting</image:caption>
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    <lastmod>2026-10-01</lastmod>
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      <image:caption>Rank, SVD, and Conditioning: Three Different Questions</image:caption>
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    <loc>https://relu.chat/blog/reading-islamic-science-sources/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:caption>How to Read Claims About Medieval Islamic Science</image:caption>
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    <loc>https://relu.chat/blog/reinforcement-learning-for-chatbots/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/blog/rl-chatbots.png</image:loc>
      <image:caption>RL-Trained Chatbots — ReLU.chat</image:caption>
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    <loc>https://relu.chat/blog/retrieval-metrics-precision-recall-mrr/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/blog/retrieval-metrics-precision-recall-mrr.png</image:loc>
      <image:caption>Measuring Retrieval Quality: Precision, Recall, MRR and NDCG</image:caption>
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    <loc>https://relu.chat/blog/reward-design-small-chatbot/</loc>
    <lastmod>2026-10-01</lastmod>
    <image:image>
      <image:loc>https://relu.chat/assets/logo.png</image:loc>
      <image:caption>Reward Design for a Small Learning Chatbot</image:caption>
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    <loc>https://relu.chat/blog/rl-termination-truncation/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/logo.png</image:loc>
      <image:caption>Termination vs Truncation in RL Targets</image:caption>
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    <loc>https://relu.chat/blog/sentence-embeddings-384-dim-minilm/</loc>
    <lastmod>2026-10-01</lastmod>
    <image:image>
      <image:loc>https://relu.chat/assets/blog/sentence-embeddings.png</image:loc>
      <image:caption>384-dim Sentence Embeddings — ReLU.chat</image:caption>
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  <url>
    <loc>https://relu.chat/blog/sentence-vs-word-embeddings/</loc>
    <lastmod>2026-10-01</lastmod>
    <image:image>
      <image:loc>https://relu.chat/assets/blog/sentence-vs-word.png</image:loc>
      <image:caption>Sentence vs Word Embeddings — ReLU.chat</image:caption>
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    <loc>https://relu.chat/blog/service-worker-caching-strategies/</loc>
    <lastmod>2026-10-01</lastmod>
    <image:image>
      <image:loc>https://relu.chat/assets/blog/service-worker-caching-strategies.png</image:loc>
      <image:caption>Service Worker Caching for ML Assets — ReLU.chat</image:caption>
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  <url>
    <loc>https://relu.chat/blog/service-worker-model-pre-caching/</loc>
    <lastmod>2026-10-01</lastmod>
    <image:image>
      <image:loc>https://relu.chat/assets/blog/service-worker-model-pre-caching.png</image:loc>
      <image:caption>Service Worker Model Pre-Caching: Zero-Wait Chatbot Loading</image:caption>
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  <url>
    <loc>https://relu.chat/blog/service-worker-model-updates/</loc>
    <lastmod>2026-10-01</lastmod>
    <image:image>
      <image:loc>https://relu.chat/assets/logo.png</image:loc>
      <image:caption>Service Worker Updates Without Stale Model Weights</image:caption>
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  <url>
    <loc>https://relu.chat/blog/service-workers-offline-ai/</loc>
    <lastmod>2026-10-01</lastmod>
    <image:image>
      <image:loc>https://relu.chat/assets/blog/service-worker-pwa.png</image:loc>
      <image:caption>Service Workers + PWA for Offline AI — ReLU.chat</image:caption>
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    <loc>https://relu.chat/blog/session-memory-architecture-30-turns/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:caption>Session Memory Architecture: 30 Turns of Context Without a S</image:caption>
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    <loc>https://relu.chat/blog/tiny-policy-training-cpu/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/logo.png</image:loc>
      <image:caption>Training a Chatbot Policy on a Laptop</image:caption>
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    <loc>https://relu.chat/blog/tokenization-subword-bpe-on-device/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/blog/tokenization-subword-bpe-on-device.png</image:loc>
      <image:caption>Subword Tokenization for On-Device NLP: How BPE Works</image:caption>
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    <loc>https://relu.chat/blog/topic-correction-when-users-redirect/</loc>
    <lastmod>2026-10-01</lastmod>
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      <image:loc>https://relu.chat/assets/blog/topic-correction-when-users-redirect.png</image:loc>
      <image:caption>Topic Correction: When Users Say &#39;No, I Meant X&#39;</image:caption>
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    <loc>https://relu.chat/blog/wasm-javascript-policy-parity/</loc>
    <lastmod>2026-10-01</lastmod>
    <image:image>
      <image:loc>https://relu.chat/assets/logo.png</image:loc>
      <image:caption>WASM vs JavaScript: Verify the Same Model First</image:caption>
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    <loc>https://relu.chat/blog/web-workers-ui-thread/</loc>
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