technology #AI #BizIT #AIDevelopmentTools #AIEfficiency #AIInfrastructure #AIResearch #ChineseAI #ComputationalEfficiency #Deepseek #LongContextProcessing #MachineLearning #OpenSource #SparseAttention #TransformerArchitecture DeepSeek tests “sparse attention” to slash AI processing costs Ars Technica Sep 30 2m read