41results about How to "The evaluation results are objective and accurate" patented technology

The invention discloses a super-resolution reconstruction quality evaluation method and an apparatus thereof. The method comprises the following steps of acquiring an image to be processed, wherein an image resolution of the image is less than a predetermined resolution threshold; according to a predetermined super-resolution reconstruction rule, carrying out image reconstruction on the image to be processed and acquiring a reconstructed image; and according to the image to be processed and an image frequency of the reconstructed image, acquiring spatial resolutions of the image to be processed and the reconstructed image respectively, and evaluating super-resolution reconstruction quality of the reconstructed image based on the spatial resolutions of the image to be processed and the reconstructed image. Through the method, a subjective error caused by the spatial resolutions which are acquired through a subjective mode of manual interpretation can be avoided so that accuracy of the spatial resolution of the image is increased; and an evaluated method is uniform, an evaluated result does not depend on a user and the evaluated result is objective and accurate.

The invention relates to an intelligent evaluation system for teachers' quality of teaching, comprising an input mechanism for examination questions, an answer collector, a central controller, an input mechanism for student evaluation and a display. The intelligent evaluation system analyzes the examination questions to obtain knowledge point information corresponding to each of the examination questions, and divides each of the knowledge point information into a different score according to a degree of mastering knowledge. An evaluation result obtained by using the intelligent evaluation system is more objective and accurate by using the score as a basis of assessing teachers' quality of teaching. Meanwhile, by combining the calculation of an accuracy of answering a question specific to acertain knowledge point for students of the whole class and students' evaluation data for teachers, teachers' quality of teaching can be truly reflected. In addition, questions with incorrect answerscorresponding to each of the examination questions are accumulated respectively according to different error option, and the intelligent evaluation system predicts whether the questions with incorrect answers are caused by teachers according to a distribution status of the accumulated values of each of the error options, so as to reduce a complexity of data analysis in an examination.

The invention discloses a method for characterizing fragrant and sweet aroma characteristics of cigarettes by adopting an index. The method comprises the following steps: selecting 10 types of cigarette fragrant and sweet characteristic substances with representativeness from aroma components of cut tobaccos; calculating to find out characteristic substances with positive influences and negative influences on fragrant and sweet aroma respectively, and determining weights of characteristic substance indexes according to influence degrees; carrying out determination and analysis on the aroma components of the cut tobaccos of the finished-product cigarettes by adopting a Simultaneous Distillation and Extraction-Gas Chromatography / Mass Spectrograph for Determination of Aroma Components of Tobaccos and Tobacco Products; and finally, calculating a fragrant and sweet aroma index SWI of the finished-product cigarettes by adopting a weighting counting method. The index can be used for directly characterizing the intensity of the fragrant and sweet aroma characteristics of the cigarettes and has an objective and accurate evaluation result. The method is simple and convenient to operate, has low cost, and provides a new concept for quality maintenance and quality control of the cigarettes.

The invention discloses a method for evaluating the liquor color quality of green tea. The method comprises the following steps: preparing tea liquor to be detected; acquiring a sample picture: putting tea soup to be tested into a standard evaluation cup bowl under good indoor lighting, and acquiring a high-reduction-degree tea soup picture by adopting photographic equipment; setting an effective soup color area; data acquisition: utilizing a program to extract Hue data and a Hue curve for the effective soup color area; data calculation: according to the Hue data, based on the established green tea soup color scoring formula of the HSV color space value, obtaining a tea soup green concentration index CRGreen, a color mean value Avg and each color component; and distinguishing tea soup color classification according to a comment system. By means of the arrangement, equipment involved in the method is simple, evaluation of the liquor color quality of the green tea can be rapidly completed, meanwhile, the evaluation result is more objective and accurate, large-scale application and popularization are facilitated, and benign development of the green tea industry can be promoted.

The invention belongs to the technical field of intelligent electric energy meter reliability comprehensive evaluation, and provides an intelligent electric energy meter reliability comprehensive evaluation model in a typical environment, which comprises the following steps: (1) constructing an intelligent electric energy meter reliability comprehensive evaluation index system in the typical environment; (2) calculating the weight of each index in the intelligent electric energy meter reliability comprehensive evaluation index system in a typical environment by adopting an analytic hierarchy process; and (3) carrying out comprehensive evaluation analysis by adopting a gray weighted correlation method. According to the method, an analytic hierarchy process is adopted to establish an intelligent electric energy meter reliability comprehensive evaluation index system in a typical environment and calculate the index weight of the index system, and a gray weighted correlation analysis method is utilized to comprehensively evaluate the reliability of intelligent electric energy meters of manufacturers in the typical environment. Experiments show that the evaluation model is used for comprehensive evaluation of the reliability of the intelligent electric energy meter in a typical environment, and the evaluation result is objective and accurate.

The invention relates to an intelligent assessment system for teachers' teaching quality. The system comprises an examination question input mechanism, an answer collector, a central controller and adisplay. Through the analysis of the examination questions, the system obtains the information of each knowledge point corresponding to each examination question, and divides the information of each knowledge point into different scores according to the degree of knowledge mastery. The scores are used as the basis of assessing teachers' teaching quality, and the evaluation results obtained by thesystem are more objective and accurate. Combined with the whole class examinees for a knowledge point of the correct rate of answer to calculate, the quality of teaching teachers can be truly reflected. According to the distribution of the cumulative value of each error option, it can be predicted whether the error is caused by teachers' mistaken teaching, so the complexity of data analysis in theassessment is reduced. Teachers with higher teaching ability in some knowledge points can give full play to their specialties to help students in some knowledge points generally lack of grasp to improve the ability of knowledge application as soon as possible and improve the quality of teaching.

The invention discloses a construction method and device of a user knowledge concept network and an evaluation method of user knowledge.The construction method of the user knowledge concept network comprises the steps that firstly, each text contained in a text set containing m independent texts is preprocessed, and then each vocabulary of corpus serves as a concept subject term; all sentences and vocabularies are traversed, vocabularies appearing together with the concept subject terms in the same sentence are included into vocabulary sets corresponding to the concept subject terms, then vocabulary element screening is conducted on each vocabulary set, and a concept library is constructed; the field division is performed on concepts contained in the concept library by adopting a hierarchical clustering method; then, according to the matching condition of vocabularies contained in the user text data and a concept library, concepts contained in the user text data are obtained; and finally, a user knowledge concept network is constructed according to the concepts contained in the user text data and the divided concept fields. According to the method, the accuracy and objectivity of evaluation can be improved.

The invention discloses a dynamic weighted comprehensive assessment method-based safety assessment method. The method comprises the following steps of: 1, formulating assessment projects so as to ensure that a client can purposefully access assessment objects under the premise of taking the assessment projects as basis; 2, classifying a plurality of assessment projects and distributing different weight ratios according to a plurality of assessment categories; 3, distributing the plurality of assessment projects to the client by a server; 4, respectively sending assessment scores to the serverby the client according to the plurality of assessment projects; 5, obtaining a plurality of weighted scores by the server according to the plurality of assessment scores and the weight ratios; and 6,obtaining a final assessment score. According to the method, weight ratios are formulated according to assessment categories of assessment projects, weighted scores are obtained according to assessment scores and the weight ratios, and finally final assessment scores are obtained, so that objective and correct assessment results are obtained.

The invention belongs to the technical field of food inspection and detection, and specifically discloses a sensory quality evaluation method of kiwi wine. The sensory quality evaluation method provided by the invention measures the contents of three higher alcohols in the kiwi wine by using gas chromatography, and comprises the following steps: 1) preparation of a higher alcohol standard solution: preparing a standard solution of n-propanol, isobutanol and isoamylol by using ethanol and n-butyl acetate; 2) sample preparation: adding the n-butyl acetate after diluting the kiwi wine to preparea sample solution; 3) detecting the standard solution and the sample solution by using the gas chromatography, and calculating the contents of higher alcohols in the sample solution; and 4) sensory quality judgment conditions: judging the sensory quality of the kiwi wine according to certain judgment conditions. According to the sensory quality evaluation method provided by the invention, the contents of flavor substance higher alcohols in the kiwi wine are measured, and the sensory quality of the kiwi wine can be objectively and accurately judged based on the content relationship between thehigher alcohols.

One or more embodiments of the invention disclose a block chain-based scenic spot passenger dishonesty list updating method and a related device, in the scheme, passenger dishonesty list sharing between scenic spot service nodes as block chain nodes is realized based on a block chain network. Meanwhile, the passenger dishonesty list can be updated by using an recognition evaluation model obtained by training by using a machine learning algorithm in a local scenic spot service node. Therefore, a practical and feasible method is provided for getting through passenger data islands among multiple scenic spots and implementing related traffic control measures for passengers in a manner of sharing the dishonest list of the passengers through the block chain. Meanwhile, through the dishonest list sharing method based on the block chain technology, a good data support can be provided for analyzing behavior data information of passengers on the dishonest list and setting a corresponding normal recovery strategy. In addition, the passengers are recognized and evaluated through a machine learning algorithm so as to update the dishonest list of the passengers, and the evaluation result is ensured to be more accurate and objective.

The invention discloses a super-resolution reconstruction quality evaluation method and an apparatus thereof. The method comprises the following steps of acquiring an image to be processed, wherein an image resolution of the image is less than a predetermined resolution threshold; according to a predetermined super-resolution reconstruction rule, carrying out image reconstruction on the image to be processed and acquiring a reconstructed image; and according to the image to be processed and an image frequency of the reconstructed image, acquiring spatial resolutions of the image to be processed and the reconstructed image respectively, and evaluating super-resolution reconstruction quality of the reconstructed image based on the spatial resolutions of the image to be processed and the reconstructed image. Through the method, a subjective error caused by the spatial resolutions which are acquired through a subjective mode of manual interpretation can be avoided so that accuracy of the spatial resolution of the image is increased; and an evaluated method is uniform, an evaluated result does not depend on a user and the evaluated result is objective and accurate.

The invention discloses a logistics performance evaluation method based on improved DEA-based AHP, which includes collecting real data in actual logistics scenarios; selecting logistics system characteristic indicators according to the entire logistics process, and performing data normalization on the logistics system characteristic indicators; Select the characteristic indicators of the logistics system and the AHP hierarchical analysis method to build a systematic rating index system; then build a judgment matrix based on the improved DEA, and through the single-level sorting and the total level sorting, and perform consistency checks, output each layer of the rating index system Index evaluation score; adjust the operating efficiency of the entire logistics system according to the index evaluation scores of each layer, and diagnose low-efficiency links. The present invention builds an index system for the entire logistics process, constructs a judgment matrix based on AHP and integrates the DEA method, determines the weight of the pure data to obtain the score of the index, measures the operating efficiency of the entire logistics system, and diagnoses the results of each link Optimize the low-efficiency links.

The invention belongs to the technical field of food inspection and detection, and specifically discloses a sensory quality evaluation method of hawthorn wine. The sensory quality evaluation method of the present invention uses gas chromatography to measure the contents of three higher alcohols in hawthorn wine, comprising the following steps: 1) preparation of higher alcohol standard solutions: using ethanol and n-butyl acetate to configure isobutanol, isoamyl alcohol and phenylethyl alcohol 2) sample preparation: dilute the hawthorn wine and add n-butyl acetate to prepare a sample solution; 3) adopt gas chromatography to detect the standard solution and the sample solution and calculate the content of higher alcohols in the sample solution; 4 ) Sensory quality judging conditions: judge the sensory quality of hawthorn wine according to certain judging conditions. The sensory quality evaluation of the present invention can objectively and accurately judge the sensory quality of the hawthorn wine by measuring the content of the main flavor substance higher alcohol of the hawthorn wine, and according to the content relationship among the higher alcohols.

The invention discloses a device for detecting the dropping performance of combustion cones in cigarette smoking procedures. The device is characterized by comprising a smoking unit, a cigarette clamping unit, a cigarette lighting unit and a cigarette striking unit; the smoking unit is communicated with the cigarette clamping unit via an electromagnetic valve bank, a filter and corresponding pipelines sequentially, the cigarette lighting unit is positioned at the front of the cigarette clamping unit, and the cigarette striking unit is positioned on a side of the cigarette clamping unit. The device has the advantages that modes of the smoking unit can be freely adjusted, so that cigarette dropping performance detection test requirements under different conditions can be met; characteristics of selected corresponding materials in the cigarette clamping unit and the cigarette striking unit are similar to friction force properties of the skins or the nails of the fingers of people, and accordingly cigarette clamping actions of people and application of knocking and striking force can be realistically simulated; the striking unit can be in modes which conform to cigarette striking behavior dynamics of people, and accordingly accurate and objective evaluation results can be provided for cigarette dropping tendency detection.