基于BPNN回归预测算法的专家数量预测模型

doi:10.11959/j.issn.1000-0801.2023252

Abstract

Abstract:

To meet the development demands of digital technology for the new power system and enhance the data value, mining, and analytics capabilities for power industry in the process of centralized bidding and procurement digitalization and intelligence, a prediction model based on BPNN regression algorithm from the perspective of the bidder was proposed.Firstly, an in-depth investigation of the current situation of expert selection for power industry bidding and procurement was conducted, and it was discovered that predicting the required number of experts is challenging.Secondly, expert demand was efficiently located based on the existing procurement needs and strategies, and the required number of experts was rapidly predicted by analyzing and learning from historical data.Finally, the prediction accuracy of the model in the pre-qualification and post-qualification review stages was validated, providing practical reference and achieving the goal of reducing costs and increasing efficiency.

Key words: prediction model, BPNN, pre-qualification, post-qualification, expert number

CLC Number:

TP183

Tianwen SHANG, Jianwei ZHANG, Haochen HUANG. Expert number prediction model based on BPNN regression algorithm[J]. Telecommunications Science, 2023, 39(12): 152-160.

Figures/Tables 10

	专家工作效率	公司经济指标	权重
样本1	$f_{1}^{WE*}$	$f_{1}^{EF*}$	$f_{1}^{WE} + f_{1}^{EF}$
样本2	$f_{2}^{WE*}$	$f_{2}^{EF*}$	$f_{2}^{WE} + f_{2}^{EF}$
...	...	...	...
样本M	$f_{m}^{WE*}$	$f_{m}^{EF*}$	$f_{m}^{WE} + f_{m}^{EF}$

函数名	表达式	图像
sigmoid函数	$f_{1} (s) = \frac{1}{1 + e^{- s}}$
tanh函数	$f_{2} (s) = \frac{e^{s} - e^{- s}}{e^{s} + e^{- s}}$
ReLU函数	$f_{3} (s) = max (0, s)$

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评标批次	专业种类	投标人数/个	专家人数/个	评标天数/日	单日费用/元	产生费用/元
A1	材料A	157	30	4	500	60 000
	材料B	80	18	4	500	36 000
	材料C	76	12	4	500	24 000
	材料D	40	8	4	500	16 000
	材料E	37	10	4	500	20 000
	材料F	170	32	4	500	64 000
A2	材料A	172	35	5	500	87 500
	材料B	101	25	5	500	62 500
	材料C	130	21	5	500	52 500
	材料D	23	10	5	500	25 000
	材料E	70	12	5	500	30 000
	材料F	237	37	5	500	92 500
A3	材料A	148	28	4	500	56 000
	材料B	82	15	4	500	30 000
	材料C	98	16	4	500	32 000
	材料D	32	6	4	500	12 000
	材料E	43	13	4	500	26 000
	材料F	186	30	4	500	60 000

神经网络	神经元个数/个	激活函数	参数
输入层	120	sigmoid	840
隐藏层	60	ReLU	7 260
输出层	6	linear	366

组别	投标人数/个	拟邀请专家数量/个	实际邀请专家数量/个
材料A	154	11	10
材料B	55	10	10
材料C	51	10	10
材料D	29	4	5
材料E	35	8	7
材料F	324	23	24
合计	648	66	66

组别	投标人数/个	拟邀请专家数量/个	实际邀请专家数量/个
材料A	170	20	21
材料B	69	15	15
材料C	55	13	13
材料D	29	7	7
材料E	37	10	9
材料F	360	24	24
合计	720	89	89

Expert number prediction model based on BPNN regression algorithm

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