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73results about How to "Alleviate the lack" patented technology

Semi-supervised text classification model training method, text classification method, system, device and medium

The invention provides a semi-supervised text classification model training method and system, a text classification method and system, equipment and a medium. The training method comprises the stepsof acquiring an initial sample set; enhancing the unlabeled sample to obtain a data enhanced sample; inputting the unlabeled sample and the data enhancement sample into a text classification model toobtain an embedded vector and a prediction probability belonging to each classification label; for each unlabeled sample, obtaining an embedded vector mean value of the unlabeled sample and the corresponding data enhancement sample as a new sample; for each unlabeled sample, obtaining a label estimation result of a new sample after sharpening the prediction probability mean value of the unlabeledsample and the corresponding data enhancement sample belonging to each classification label; verifying whether the new sample is credible or not, and if yes, marking the new sample as a credible new sample; constructing a confidence sample set according to the labeled sample and the trusted new sample, and expanding to obtain a target sample set; and training the text classification model according to the target sample set. According to the method, the text classification accuracy is improved under the condition of lack of annotation samples.
Owner:上海携旅信息技术有限公司

SQL (Structured Query Language) conversion method and system based on language model coding and multi-task decoding

The invention discloses an SQL (Structured Query Language) conversion method and system based on language model coding and multi-task decoding. The method comprises the steps: combining a language model in combination with a field where a data set is located to carry out pre-training, and improving the feature extraction capability in the field; sequentially expanding the query database according to table names and column names, converting a two-dimensional table into a one-dimensional text sequence, and splicing the one-dimensional text sequence into an input sequence X in combination with user questions; inputting the sequence X into a pre-training language model, and outputting a coding result; a multi-task decoder composed of nine different neural networks is utilized to decode and restore the SQL fragments, and cross entropy loss is calculated; different weights are set for loss values of different neural networks, the sum is finally calculated as the total loss of the model, a gradient descent algorithm is utilized to optimize an objective function, and model training parameters are updated; after training is completed. Model parameters are stored, and a corresponding SQL sequence is automatically generated according to the user problem and the target database.
Owner:ZHEJIANG UNIV

Intelligent multi-function guiding robot and control method thereof

The invention relates to an intelligent multi-function guiding robot and a control method thereof comprising a robot body and a handheld control unit. The robot body comprises a head portion, a support portion, and a walking mechanism; the head portion is provided with a scene recognition device, an infrared sensor module, a display screen, and a loudspeaker; a first processing unit is arranged inthe head portion, and the scene recognition device, the infrared sensor module, the display screen, and the loudspeaker are all electrically connected with the first processing unit; the support portion is connected between the head portion and the walking mechanism; and the handheld control unit is provided with a two-dimensional code and a control button, and the scene recognition device activates the robot to starting up and communication by the scanning the two-dimensional code. The intelligent multi-function guiding robot and the control method thereof solves the problems that at presentprofessional explainers have difficulty in making appointment, personnel are scarce, and explain quality is low, more tourists are attracted to visit, cultural transmission function such as technology exhibition halls and heritage museums is further played, and service quality and management level of sites such as the technology exhibition halls and the heritage museums are enhanced.
Owner:SHENYANG JIANZHU UNIVERSITY

Method for producing white carbon black by using high alumina fly ash and system thereof

The invention discloses a method for producing white carbon black by using high alumina fly ash and a system thereof, relating to the technical field of material and chemistry. The invention comprises a fly ash slurry blending system, a fly ash pre-desiliconization system, a white carbon black preparation system and a caustification system. the structure is characterized in that the sleeve heater is divided into two sections; the outlet passage at the lower part of a heat preservation stay pot is divided into two paths; the solution outlet of a tube type falling film evaporator is connected with one inlet of a circulating mother liquor preparation tank through an evaporating solution pump, and one of the other two inlets of the circulating mother liquor preparation tank is alkali supplementing passage and the other thereof is connected with the outlet of a caustification tank through a caustification solution pump; the outlet passage of the circulating mother liquor preparation tank is connected with the inlet of a fly ash slurry preparation tank through a circulating mother liquor pump, so that the whole system forms a closed circulation. The invention is simple in process, low in production cost, low in energy consumption, and stable in performance of the products, meanwhile the fly ash of which white carbon black is extracted out can be used for preparing aluminium oxide as an important aluminium resource.
Owner:TONGFANG ENVIRONMENT

Low-nitrogen-emission daily ration for growing pigs

The invention discloses a low-nitrogen-emission daily ration for growing pigs. The low-nitrogen-emission daily ration contains protein, lysine, tryptophan, threonine and sulfur-containing amino acid, wherein the net energy content of the low-nitrogen-emission daily ration is 2.30 to 2.45 Mcal / kg, and the content of the protein is 11.5 to 15.5%; the content of the lysine capable of being digested by standard ileums in the low-nitrogen-emission daily ration is 0.9 to 1.02%, the ratio of the tryptophan capable of being digested by the standard ileums to the lysine capable of being digested by the standard ileums is not lower than 0.23, the ratio of the threonine capable of being digested by the standard ileums to the lysine capable of being digested by the standard ileums is not lower than 0.66, and the ratio of the sulfur-containing amino acid capable of being digested by the standard ileums to the lysine capable of being digested by the standard ileums is not lower than 0.61. According to the low-nitrogen-emission daily ration disclosed by the invention, by decreasing the crude protein level in a daily ration prescription in Feeding Standard of Swine (2004) and supplementing synthetic amino acids, the absorptivity of the amino acids in animals is increased, the feed cost is lowered, and the economic benefits of swine industry is enhanced; the decrease of nitrogen emission in environment is beneficial to alleviation of the problem of protein feed insufficiency to a certain extent; and the weight gain of growing pigs and the feed conversion rate are not influenced.
Owner:CHINA AGRI UNIV +1

Method and device for slitting and using tobacco leaves and tobacco product

The invention belongs to the field of tobaccos, and particularly relates to a method for slitting and using the tobacco leaves, which comprises the following steps of: equally dividing the tobacco leaves to be slit into three to seven sections along the main vein direction to obtain tobacco leaf slitting sections, wherein the tobacco leaves to be slit are selected from one or more grades of tobacco leaves of B2F, C3F and X2F; obtaining the total nicotine and total sugar content of the tobacco leaf slitting sections and grade tobacco leaves, wherein the grade tobacco leaves are selected from one or more grades of tobacco leaves of B1F, B2F, C2F, C3F, C4F, X2F, B1K, B2K, C3V, X2V, B2V, S1 and CX1K; taking the total nicotine content and the total sugar content as indexes to carry out clustering analysis on tobacco leaf slitting sections and grade tobacco leaves; using the tobacco leaf slitting sections of the same class to replace tobacco leaves of the same grade. The invention further relates to a device for slitting tobacco leaves and using the tobacco leaves and a tobacco product. The method relieves the problem of lack of grade tobacco leaf raw materials, and is simple in slittingoperation and suitable for industrial popularization.
Owner:CHINA TOBACCO FUJIAN IND

Forage grass planting method based on mixed cropping of oat and common vetch

The invention discloses a forage grass planting method based on mixed cropping of oat and common vetch. The method comprises the following steps of fine soil preparation before sowing and combined application of N fertilizer, P fertilizer, K fertilizer and organic fertilizer according to the soil fertility; variety selection, wherein the seed quality reaches the national level 3 or above, oat for the areas at the altitude of 3,000 m or above is selected from early maturing varieties such as Qingyin No.1, common vetch for the areas at the altitude of 3,000 m or above is selected from early maturing varieties such as Lanjian No.1, oat for the areas at the altitude of 3000 m or below is selected from the varieties such as Qinghai sweet oat, and common vetch for the areas at the altitude of 3000 m or below is selected from the varieties such as Ximu 324; determination of the sowing amount, wherein the sowing amount of the oat and common vetch is determined according to respective seedling conservation numbers, the seedling conservation number of the oat is 4,500,000-5,250,000 plants per hectare, and the seedling conservation number of the common vetch is 3,000,000-3,750,000 plants per hectare. The method has the advantages that the fertilizer application amount under different soil fertility levels is stipulated; the selection of planting varieties for mixed sowing forage grass land in different areas is stipulated; a method for planting in the mixed sowing forage grass land is stipulated; land resources can be comprehensively utilized, natural resources such as light, heat, fertilizer and water can be utilized intensively, the cultivation intensity and the planting cost can be reduced, fertilizer application is reduced, and the land resources can be protected.
Owner:QINGHAI ACAD OF ANIMAL SCI & VETERINARY MEDICINE

Catalytic cracking absorption stabilization system having gasoline cutting and process producing more propene and reducing alkene

The invention relates to a catalytic cracking adsorption-stabilization system with gasoline cutting and a technique for increasing the content of propylene and reducing the content of olefins. The catalytic cracking adsorption-stabilization system and the technique are as follows: a gasoline cutting tower is connected to the rear of a double-tower flow stabilizer; a stream of gasoline is stabilized at the bottom of the stabilizer and enters into the central section of the increased gasoline cutting tower at a temperature of between 105 and 115 DEG C; after the gasoline is cut by the gasoline cutting tower, a part of light gasoline on the top of the tower enters into a reaction-regeneration system for remixing; heavy gasoline at the bottom of the tower is mixed with the light gasoline at a temperature of between 35 and 45 DEG C after a heating desorption tower 10 is fed; and mixed streams pass through a water cooler and are outputted from the device when the temperature is reduced to be lower than 40 DEG C. By utilization of the flow of the catalytic cracking adsorption-stabilization system and the technique, the light gasoline after cutting is remixed, thereby the content of the propylene can be increased, thereby being favorable for solving the problem of insufficient propylene products in the petrochemical industry of China. Moreover, because the gasoline cutting is clear, the content of olefins in the gasoline is greatly reduced and the quality of the gasoline products is obvious improved. The energy-saving technique can reduce the energy consumption during the stable absorption process and reduce the operating cost.
Owner:TIANJIN UNIV
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