importtorchdefdcg_at_k(r,k):"""Compute DCG at k."""# 计算前k个结果的DCG值dcg=torch.zeros(1)foriinrange(min(k,len(r))):dcg+=(2**r[i]-1)/torch.log2(i+2)returndcgdefndcg_at_k(r,k):"""Compute NDCG at k."""# 计算前k个结果的NDCG值dcg_max=dcg_at_k(sorted(r,reverse...
importnumpyasnpdefdcg_at_k(relevance_scores,k):"""计算前 k 个文档的 DCG 值"""iflen(relevance_scores)==0:return0.0relevance_scores=relevance_scores[:k]returnnp.sum(relevance_scores/np.log2(np.arange(2,len(relevance_scores)+2)))defidcg_at_k(relevance_scores,k):"""计算前 k 个文档的...
DCG is the total gain accumulated at a particular rank p: DCGp=rel1+∑i=2prelilog2i Alternative formulation: DCGp=∑i=1p2reli−1log(1+i) used by some web search companies emphasis on retrieving highly relevant documents 10 ranked documents judged on 0–3 relevance scale: 3, 2, 3, 0...
set "ndcg" as metric, "lambdarank" as objective. set 20 as "ndcg_eval_at" train start kondo-kkadded thebugIssue/PR about behavior that is broken. Not for typos/examples/CI/test but for Optuna itself.labelFeb 10, 2020 toshihikoyanasementioned this issueFeb 10, 2020...
The four machine heads can be combined at will. Technical Parameter: Air Pressure: 0.4MPa~0.6MPa Air Consumption: 200L/min Input Voltage: 380V 50Hz Input Power: 4.5KW Welding Height: 20mm~120mm Welding Width: MAX.100mm Welding ...
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-20ºC ~ +60ºC (When the temperature is below -10ºC, derating use ) Water proof IP67 CRI >85 Charge time 6-8H Lighting time Light on at dusk, Light off at dawn auto.12 hours lighting time per day, 3 rainy days backup.365 days can ...
At the same time, the temperature will be dropped to 20-30ºC, and the heat absorber will transfer the heat source to refrigerant. And the refrigerant tranports the heating source from the air to drying chamber constantly and circularly to heat the a...
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