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Amap Tech

Official Amap technology account showcasing all of Amap's technical innovations.

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Recent Articles

Latest from Amap Tech

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Amap Tech
Amap Tech
Jul 11, 2025 · Artificial Intelligence

Unified Self‑Supervised Pretraining Accelerates Image Generation and Improves Understanding

The USP framework introduces masked latent modeling within a VAE space to pre‑train ViT encoders, enabling seamless weight transfer to both image classification, segmentation, and diffusion‑based generation tasks, dramatically speeding up DiT and SiT models while preserving strong visual representations.

Diffusion ModelsImage GenerationVAE
0 likes · 13 min read
Unified Self‑Supervised Pretraining Accelerates Image Generation and Improves Understanding
Amap Tech
Amap Tech
Jul 11, 2025 · Artificial Intelligence

Unified Self‑Supervised Pretraining Boosts Image Generation and Understanding

The USP framework introduces masked latent modeling within a VAE space to pretrain ViT encoders, enabling seamless weight transfer to both image classification and diffusion‑based generation tasks, dramatically accelerating training while preserving strong performance across multiple benchmarks.

Diffusion ModelsImage Generationpretraining
0 likes · 10 min read
Unified Self‑Supervised Pretraining Boosts Image Generation and Understanding
Amap Tech
Amap Tech
Jul 9, 2025 · Artificial Intelligence

VMBench: Perception-Aligned Motion Benchmark & LD‑RPS Zero‑Shot Restoration

This article introduces VMBench, the first perception‑aligned video motion generation benchmark that defines a five‑dimensional metric suite and a meta‑guided prompt generation pipeline, and presents LD‑RPS, a zero‑shot unified image restoration framework based on latent diffusion recurrent posterior sampling, together with extensive experiments validating both systems.

Diffusion ModelsImage Restorationbenchmark
0 likes · 14 min read
VMBench: Perception-Aligned Motion Benchmark & LD‑RPS Zero‑Shot Restoration
Amap Tech
Amap Tech
Jul 9, 2025 · Artificial Intelligence

Bridging Human Perception and Video Motion Generation: VMBench & LD‑RPS

This article introduces VMBench, a perception‑aligned video motion generation benchmark with a five‑dimensional metric suite and meta‑guided prompt generation, and LD‑RPS, a zero‑shot unified image restoration framework using latent diffusion and recurrent posterior sampling, detailing their motivations, innovations, experiments, and future directions.

AI researchDiffusion ModelsImage Restoration
0 likes · 14 min read
Bridging Human Perception and Video Motion Generation: VMBench & LD‑RPS
Amap Tech
Amap Tech
Jun 30, 2025 · Artificial Intelligence

SeqGrowGraph: Chain-of-Graph Expansion for Precise Lane Topology

SeqGrowGraph introduces a novel chain-of-graph expansion framework that incrementally builds lane topology graphs using a Transformer-based autoregressive model, achieving state‑of‑the‑art performance on large autonomous‑driving datasets such as nuScenes and Argoverse 2 by accurately modeling complex road structures.

Sequence ModelingTransformerautonomous driving
0 likes · 10 min read
SeqGrowGraph: Chain-of-Graph Expansion for Precise Lane Topology
Amap Tech
Amap Tech
Jun 17, 2025 · Artificial Intelligence

Building an AI-Powered Testing Ecosystem: From Core Principles to Automation

This article explores how a testing team can abstract core testing capabilities, construct a unified testing ecosystem, and integrate AI at strategic points—from data aggregation and automated analysis to knowledge‑base driven requirement enhancement and fully automated test case generation—ultimately turning quality assurance into a collaborative human‑AI partnership.

AIKnowledge Graphautomation
0 likes · 37 min read
Building an AI-Powered Testing Ecosystem: From Core Principles to Automation
Amap Tech
Amap Tech
Jun 5, 2025 · Artificial Intelligence

How MVPainter Achieves Accurate, High‑Detail 3D Texture Generation with Multi‑View Diffusion

MVPainter introduces a fully open‑source pipeline that generates high‑quality, PBR‑compatible 3D textures from a single reference image and a white model by leveraging multi‑view diffusion, geometric control, and a human‑aligned evaluation framework, dramatically improving texture fidelity, alignment, and detail.

3D texture generationAIDiffusion Models
0 likes · 10 min read
How MVPainter Achieves Accurate, High‑Detail 3D Texture Generation with Multi‑View Diffusion
Amap Tech
Amap Tech
May 27, 2025 · Databases

OceanBase Unitization: Building the Next Generation of Online Map Applications

This paper presents the design, implementation, and experimental evaluation of OceanBase's unitization architecture for large‑scale online map services, demonstrating superior disaster‑recovery, high‑throughput OLTP/OLAP performance, and storage efficiency compared with competing distributed databases.

OceanBaseOnline Mapsdistributed database
0 likes · 24 min read
OceanBase Unitization: Building the Next Generation of Online Map Applications
Amap Tech
Amap Tech
May 19, 2025 · Artificial Intelligence

Group Policy Gradient: Direct Objective Optimization for Faster Reinforcement Learning

The article introduces Group Policy Gradient (GPG), a reinforcement‑learning framework that eliminates surrogate loss functions and critic models, directly optimizes the original objective, reduces bias and variance, and achieves state‑of‑the‑art performance on both single‑modal and multimodal tasks.

AI researchLLM fine-tuningPolicy Gradient
0 likes · 7 min read
Group Policy Gradient: Direct Objective Optimization for Faster Reinforcement Learning