Official account of the DataFun community, dedicated to sharing big data and AI industry summit news and speaker talks, with regular downloadable resource packs.
The article analyzes the limitations of traditional batch and stream processing, introduces Hologres Dynamic Table as a declarative, incremental‑compute framework that bridges the gap between low‑cost batch jobs and low‑latency streaming, and validates its performance with benchmarks and real‑world case studies.
The article details how Knora 4.0 integrates ontology with large‑model AI to create a reusable, extensible enterprise AI platform that mitigates hallucination, stabilises output, and enables autonomous end‑to‑end execution, illustrated with LED production line case studies, architectural breakdowns, and a roadmap for future intelligent agents.
The article explains that the hidden infrastructure layer called Agent Harness—responsible for prompt, context, and tool orchestration—determines whether impressive AI agent demos can survive production, highlighting issues like context rot, compounding errors, verification loops, and concrete benchmark improvements.
This expert roundtable dissects why RAG often fails in production—low recall, hallucinations, cost overruns—and walks through concrete diagnostics, hybrid search designs, knowledge‑engineering tricks, GraphRAG and Agentic RAG advances, plus practical deployment, security, and cost‑optimization guidelines.
The whitepaper analyzes the data‑driven transformation of the new‑energy battery sector, outlines four core challenges—massive data streams, fast‑changing R&D demands, long manufacturing cycles, and multi‑dimensional quality standards—and demonstrates how SelectDB’s unified lake‑warehouse architecture delivers million‑level throughput, second‑level latency, up to 30× query speedup, and 60% cost reduction across real‑world case studies.
This article reviews cutting‑edge technical practices from Alibaba Cloud AI Search, Huawei Noah's recommendation platform, and Baidu's GRAB model, detailing how multi‑agent RAG architectures, large‑language‑model enhancements, and generative ranking overcome high‑concurrency, multi‑modal data, and feature‑engineering bottlenecks.
The article analyses the current hype around AI agents, explains why pure prompt‑based constraints fail in complex business scenarios, and proposes an ontology‑driven Harness Engineering framework that embeds architectural constraints, context engineering, and a traceable feedback loop to achieve secure, business‑level controllability.
In a Data for AI meetup, Datastrato's VP of Engineering Shi Shaofeng explains how Apache Gravitino's metadata federation, metalake architecture, and unified access control address multi‑cloud data fragmentation, compliance, and AI‑driven governance while outlining version 1.1.0 enhancements and the roadmap for 1.2.0.
OPPO’s data‑lake team, led by David, detailed their transition from Hive‑Spark to a unified multi‑modal lake, leveraging Gravitino for cross‑engine metadata management and the open‑source Curvine cache to eliminate data silos, boost I/O performance, and support massive image, recommendation, and AI‑Agent workloads.
This article explains a complete multimodal product search solution that combines text and image embeddings, dense, sparse, and hybrid models, vector similarity metrics, and Elasticsearch Serverless features such as dense_vector, sparse_vector, hybrid search, quantization, and RRF ranking to achieve fast, accurate, and cost‑effective retrieval.
