30results about How to "Fix cold start" patented technology

The invention discloses a commodity recommendation optimizing method based on a customer behavior. The method comprises the following steps of: 1, initializing; 2, adjusting a purchase interest configuration file of a registered customer according to best-selling commodities; 3, adjusting the purchase interest configuration file of the registered customer according to the clicking of recommended commodities by the customer; 4, adjusting the purchase interest configuration file of the registered customer according to the purchase of the recommended commodities by the customer; 5, adjusting the purchase interest configuration file of the registered customer according to low-concern recommended commodities of the customer; 6, adjusting the recommended position ranking of commodities according to the concern of the customer on recommended commodities; and 7, adjusting the purchase interest configuration file of the registered customer according to the purchase interest values of the customer on commodities, and arranging commodities with higher purchase interest values in recommended positions.

The invention discloses a personalized recommendation method based on multi-type academic achievement portraits and a mixed recommendation strategy. The personalized recommendation method comprises the following steps: adopting an appropriate recommendation strategy for users, academic achievements portraits and each academic achievement; wherein the user and academic achievement portraits comprise a user portrait, a paper portrait, a periodical portrait, a scholar portrait, a subject portrait and a fund portrait; and adopting appropriate recommendation strategies for each academic achievement, wherein the appropriate recommendation strategies comprise project-based collaborative filtering recommendation and content-based recommendation.

The invention provides an information cross-domain parallel sequence recommendation method based on shared account, a medium and equipment. The method comprises the steps: extracting watching sequences of a given account in different fields, and carrying out the coding of the watching sequences, and obtaining the mixed representation of the given account in a single field; identifying different user behaviors by learning the hybrid representation, and filtering out information which may be useful for another domain; migrating the useful information of each field to other corresponding fields;and integrating useful information filtered in different fields, evaluating each piece of related information, and recommending the related information to the corresponding account according to an evaluation result. The problems of cold start and data sparsity frequently appearing in a recommendation system are solved.

The invention discloses an automobile radiator with a heating device, and belongs to the field of automobile radiators. The technical aim of heating cooling liquid of the automobile radiator through electric energy so as to achieve cold start and heating of an automobile is achieved. The automobile radiator structurally comprises an electrical storage device, a controller, a heating water storage tank, a PTC electric heater used for heating the cooling liquid, a cooling liquid temperature sensor used for detecting the temperature of the cooling liquid and a liquid level sensor used for detecting the liquid level of the cooling liquid. A water tank and the heating water storage tank of the automobile radiator communicate through a pipeline. An electric water pump is arranged on the pipeline. The PTC electric heater, the cooling liquid temperature sensor and the liquid level sensor are all arranged in the heating water storage tank. The electrical storage device, the PTC electric heater, the cooling liquid temperature sensor, the liquid level sensor and the electric water pump are all connected with the controller. The electrical storage device is connected with the PTC electric heater.

The invention provides a method, device and terminal for accelerating starting of web page based on object pool. The method comprises the steps of before a web page is loaded, pre-building a web page environment object, submitting the web page environment object to a object pool for integral management to achieve the direct opening of the web page through the web page environment object based on a universal resource locator, thus during cold starting, saving the time needed to initialize the web page running environment and during hot starting ,saving time to load variable environment to accelerate the web page loading speed, and enhance user's experience. Moreover, according to the method, device and terminal for accelerating starting of web page based on object pool, the object pool manages one or more web page environment objects, each web page environment object takes memory space, the technical scheme automatically adjusts the volume of the object pool based on the content volume to avoid the system burden caused by the memory space occupation by the object pool.

The invention discloses a method of identifying a target terminal. The method includes the following steps: extracting data from a data source, pre-processing the data according to preset strategies to remove abnormal first data, and keeping normal second data used for obtaining an analysis data set; performing data verification and/or data conversion on the second data and then obtaining an analysis data set; obtaining the analysis data set, and extracting characteristic vectors of users from the analysis data set on the basis of communication characteristics of the users, wherein the characteristic vectors of the users is used for representing the communication characteristics of the users; dividing all the users into first users and second users on the basis of the characteristic vectors of the users, obtaining cluster results corresponding to all the first users on the basis of data of the first users, and taking the cluster results as first cluster results; performing clustering on the basis of the characteristic vectors of the second users and the first cluster results, obtaining cluster results corresponding to all the users, and taking the cluster results as second clusterresults; and identifying a target terminal on the basis of the second cluster results. The invention also discloses a device of identifying a target terminal.

The invention discloses a score prediction method combining a topic model and a heterogeneous information network. The method comprises the following steps: (1) extracting comment information by usinga topic model for a specified user commodity pair, thereby constructing vector representation of a user and a commodity; (2) constructing a heterogeneous information network by using the commodity attribute information and the user common purchase information; (3) extracting a final relationship representation vector of the user commodity pair from the heterogeneous network; (4) for the user commodity pair, connecting the user vector, the relationship representation vector and the commodity vector representation, and inputting the user vector, the relationship representation vector and the commodity vector representation into the AFM to realize score prediction; and step 5, calculating an RMSE value according to the prediction scoring data and the real scoring data calculated by the model, and taking the RMSE value as an evaluation index of the model effect. According to the method, the problems of cold start, low interpretability and low accuracy in scoring prediction are solved.

The invention optimizes the starting procedure of GPS location according to the principle of a GPS, thus shortening the start time and achieving the aim of quick positioning. In order to realize the aim, the invention comprises the following steps: step 1, a receiver of the GPS is cold started; step 2, the receiver of the GPS enters a sleep mode, and a pulsed mode is started; step 3, receiver of the GPS updates satellite information; step 4, a timer is started, the timing period is T which is less than 2 hours, and a timing count mode is entered; if the count overflows, a timer conter is reset and sends out a pulse signal; and the step 3 is returned. The invention has the effect that after being started for a first time, the receiver of the GPS only has two states which are the sleep mode and a navigation mode, wherein, warm boot is the only channel for switching the sleep mode and the navigation mode, thus solving the time-consuming problem of cold boot and warm boot.

A lithium ion battery thermal management system and method based on movable fins and a phase change material can perform thermal management on the operation of the lithium ion battery according to different working temperatures of the lithium ion battery: when the lithium ion battery works at medium temperature, the battery temperature reaches the melting point of the phase change material, and the phase change material converts the battery heat into self latent heat for storage through solid-liquid phase change; after the phase change material is completely liquefied, the heat management system drives the fins to make contact with the surfaces of the single batteries, and high-temperature heat dissipation is carried out through heat conduction of the fins and convection of surrounding refrigerants under the assistance of heat absorption of the liquid phase change material; when the battery stops working and the temperature of the battery begins to drop and is close to the melting point of the phase change material, the heat management system folds the fins back to separate from the surface of the single battery, so that the external dissipation of heat in the phase change material and the battery is slowed down, and the temperature drop of the battery pack in a low-temperature environment is prevented from being too fast. The design can effectively ensure that the lithium ion battery obtains ideal operating temperature and surface temperature difference at different working temperatures.

The invention relates to a parking heating system for motor vehicles driven by electric motors and a method for realizing a parking heating function in a motor vehicle having an electric drivetrain.

The invention relates to the technical field of engine emission control, in particular to a device and method for preheating an engine and a catalytic converter at the same time and an automobile. Thedevice comprises a circulation loop, a controller, a timer, a first temperature sensor and a pressure monitor, wherein the timer, the first temperature sensor and the pressure monitor are connected with the controller; and the circulation loop comprises the engine, the catalytic converter and a heater, wherein the engine is connected with the catalytic converter through a pipeline assembly, the heater is arranged between the engine and the catalytic converter, and the heater is used for heating the engine and the catalytic converter at the same time under the control of the controller when aheating condition is met. According to the device and method, and the automobile, before the engine is started, the engine and the catalytic converter are preheated in advance at the same time, so that cold starting of the engine is avoided, the engine is easy to start, and the oil consumption and emission of the engine in the starting stage are greatly improved; and meanwhile the damage to supercharger blades is reduced.

The invention provides a recommendation method and system of browsing content for users. The method includes the steps of obtaining multiple webpages within a preset range, and extracting multiple first keywords of the webpages; calling a previously created keyword table of a target user, wherein the keyword table contains multiple second keywords; calculating the relevancy between each first keyword and each second keyword, and obtaining multiple preference keywords indicating the content in which the target user is interested most according to the relevancy between each first keyword and each second keyword; pushing the address of a webpage with at least one reference keyword to the target user. In this way, personalized recommendation of the browsing content for the users is achieved.

The invention discloses a personalized video recommendation method and system, and the method comprises the steps: A, carrying out the preprocessing of all current videos, and extracting the codes ofthe videos; b, for a new user, randomly recommending a batch of videos; c, calculating the fitness of each recommended video to the user according to the operation feedback of the user on the batch ofvideos, including like clicking, commenting, forwarding, watching length, watching times and other factors; d, preferentially selecting the previously recommended video through the fitness; e, randomly enabling the previously selected video codes to generate some mutations, performing some mutations, and giving some new attempts to the user; according to the method adopted by the invention, shortvideo recommendation can be carried out on the user to a certain extent, a certain learning ability and interpretability of a result are achieved, and the problem of cold start can be solved to a certain extent.

The invention discloses a whole vehicle thermal management integrator suitable for hybrid power and pure electric vehicles. The whole vehicle thermal management integrator comprises a thermal management integrated valve, a cooling fan, a bypass electromagnetic valve, a cooling module, a whole vehicle thermal management controller, an electric air conditioner, a PTC heater and pipeline accessories. The invention provides a brand-new integrated design architecture specially for a hybrid power and pure electric vehicle thermal management system, and component integration, function integration and control integration are carried out on a heat dissipation module, a heat exchange module and a heating and cooling module which are distributed in traditional thermal management. Heat exchange interconnection and intercommunication among the power battery, the electronic power device, the motor, the internal combustion engine and the cab cabin are achieved by controlling opening and closing of the electromagnetic valves, the heat balance time of the whole vehicle is shortened, and the energy use efficiency is improved. According to the integrated innovative design concept, the number of parts of the thermal management system is reduced, the overall vehicle thermal management space layout is simplified, and a brand new design architecture is provided for the design of the thermal management system of the hybrid power and pure electric vehicle.

The invention discloses a deep student performance prediction method based on multi-layer LSTM, and the method comprises the following steps: data preprocessing: dividing demographic data according totypes, carrying out the One-Hot coding, obtaining a demographic sequence, carrying out the processing of click stream data according to types, obtaining a click stream sequence, and obtaining preprocessed data after splicing; establishing a multi-layer full connection layer, and inputting a demographic sequence; establishing a multi-layer LSTM structure layer, and inputting a click stream sequence in the preprocessed data; splicing output sequences of the multiple full connection layers and the multiple LSTM structure layers; building a Softmax layer, converting the spliced output sequence into probability distribution, and the category with the large probability is an output result; according to the invention, the multi-layer LSTM structure layer is used as a basic framework, so that theproblems of incomplete data utilization and poor prediction effect are solved; an attention mechanism is introduced, different attention is distributed to different input items, and the prediction effect is improved.

The invention relates to a far infrared electronic heating oil pipe which consists of two sections of rubber oil pipes 5 and 5a, a flat ball head joint 1, a two-way joint 8, a buckling sleeve 2, an inner far infrared heating wire 4, a sheath 6 and a connector clip 7. The oil pipe is mounted between an engine and an oil tank; a flat ball head on which one end of the far infrared heating wire is fixed is connected with an engine ground to be grounded; and the connector clip at the other end of the far infrared heating wire is connected to an anode of a power supply. The adoption of the far infrared electronic heating oil pipe has the advantages that preheating and heat preservation of diesel oil in the oil pipe of a diesel vehicle are realized; normal flow of the diesel oil in the oil pipe on the microthermal climate is ensured; the problems of cold start and flameout of the diesel vehicle are solved; and the far infrared electronic heating oil pipe has a simple structure, is convenient to install and is safe and reliable to use.

The embodiment of the invention provides a container life cycle management method and device, a function calculation method and device and a storage medium. A started container on a target host can be monitored; calculating the use heat of each started container in real time; according to the use heat, the sequence of the started containers on the target host is maintained in real time; and based on the sorting of the started containers, controlling the target container of which the sorting position meets a preset requirement to reside until the target container does not meet the preset requirement due to the change of the sorting position. Therefore, the life cycle of the container does not rigidly follow the fixed threshold duration any more, but the container which is more likely to be used and the function logic data associated with the container can be controlled to reside for longer time according to the cache thought, so that the probability of executing the function in a hot start mode is effectively improved, and cold start is reduced or even avoided; the delay of the hot start is far lower than that of the cold start, so that the execution efficiency of the function can be effectively improved on the whole.

The invention relates to a micro-service management method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a running version and an effective version currently corresponding to an interface of the micro-service; the effective version is a to-be-operated version determined based on an operation version updating request sent by a terminal; when the running version is inconsistent with the effective version, obtaining interface code data corresponding to the effective version; and under the condition of keeping the online state of the micro service, running the interface code data to update the interface. By adopting the method, the hot update of the interface can be realized under the condition that the service residence is ensured, so that the cold start problem of the micro-service is solved, and the processing efficiency of the micro-service can be improved.