Listen to Everything · Answer the Future
An enterprise-grade intelligent knowledge platform built on RAG and AI Agents.
Hybrid retrieval, four-level evidence evaluation, citation tracing — every answer is verifiable.
According to the 2024 Annual Business Report, East China generated revenue of ¥420M, accounting for 38.6% of total revenue, up 12.3% YoY…▌
One knowledge engine, two delivery forms
Web-based RAG platform — zero deployment, instant access, with online knowledge base management and smart chat.
Desktop client with local execution for data security, offline usage and local hardware acceleration.
In-house engine capabilities beyond off-the-shelf RAG solutions
The LLM analyzes intent and dynamically selects DIRECT retrieval, REWRITE optimization, or DECOMPOSE parallel strategies — complex questions are split into sub-queries, retrieved in parallel, then aggregated.
PGVector semantic search + ES BM25 keyword search, fused and ranked by RRF, then refined through cluster aggregation and neighbor-window expansion to complete cross-chunk context.
Pre-generation gating: NONE / WEAK triggers a polite refusal, PARTIAL answers with caveats, SUFFICIENT generates normally with citation tracing — no more confident hallucinations.
A graph execution engine drives "Think → Tool Call → Respond". CHAT / KB_SEARCH modes switch dynamically within one session, with SSE streaming output.
Session memory → compact summary → runtime truncation: progressive compression that maximizes long-dialogue coherence within a limited context window.
RBAC permissions + group-level data isolation, RSA/AES dynamic API encryption, field-level encryption (AES/RSA/SM2/SM4), and full operation auditing.
A complete pipeline from document upload to citation tracing
Chunked upload · resumable · instant dedup · SHA-256 verification
→Tika parsing → cleansing → structure-aware chunking (500/800/80 tokens)
→LLM intent analysis, auto routing via DIRECT / REWRITE / DECOMPOSE
→Semantic + keyword channels → RRF fusion → cluster aggregation → neighbor expansion
→Four-level sufficiency gating; refuses to answer when evidence is insufficient
→SSE streaming output with cited chunks, source documents and relevance scores
Enterprise-grade Java full stack — mature and stable choices
Compared with LangChain / LlamaIndex / Dify / FastGPT
Combine an enterprise admin framework with RAG technology to build your own intelligent knowledge platform.