Abstract: A method for training a click rate prediction model includes: obtaining sample feature information and a label value, in which the sample feature information includes feature information of a sample user and feature information of a target object, and the label value is configured to indicate whether the sample user interacts with the target object; obtaining a plurality of adjacent matrixes for feature interaction by processing the feature information of the target object based on the hypernetwork module; obtaining a click rate prediction value of the sample user on the target object using the prediction module, according to the sample feature information and the plurality of adjacent matrixes; and training the click rate prediction model according to the label value and the click rate prediction value.

Abstract: A tubular heating body includes: a heating main body. The heating main body is formed by splicing at least two heating units. In an embodiment, each heating unit of the at least two heating units includes: a substrate tube; an electric heating layer disposed on the substrate tube; and an infrared radiation layer disposed on the substrate tube.

Abstract: An aerosol-generating apparatus is provided. The aerosol-generating apparatus includes a heating base and a heating member. The heating base has a heating cavity, the heating member is configured to accommodate and heat an aerosol-generating substrate, the heating member is disposed in the heating cavity. The heating member includes a first sidewall, a first airflow channel is formed between the first sidewall and the inner surface of the heating cavity. A protrusion is disposed on an inner surface of the first sidewall, the protrusion makes a second airflow channel formed between the first sidewall and the aerosol-generating substrate, and both the first airflow channel and the second airflow channel are led from the outside of the aerosol-generating apparatus to the bottom of the heating cavity.

Abstract: A porous body for an electronic vaporization device includes: a first surface; a second surface opposite to the first surface; and at least two unit layers sequentially arranged along a direction from the first surface to the second surface, one unit layer of the at least two unit layers comprising at least a liquid storage advantage layer or a liquid locking advantage layer, and each unit layer of a remainder of the at least two unit layers comprising a liquid storage advantage layer and a liquid locking advantage layer combined with the liquid storage advantage layer.

Abstract: A heating element includes: a conductive substrate; an insulating layer located on the conductive substrate; a heating layer located on the insulating layer and electrically connected to the conductive substrate; a first conductive member located on the insulating layer and electrically connected to the heating layer; and a second conductive member located on the conductive substrate and electrically connected to the conductive substrate.

Abstract: A vaporizer includes: an infrared radiator for radiating heat; and a vaporization core including an accommodating cavity for accommodating the infrared radiator, the vaporization core having a vaporization surface defining a boundary of the accommodating cavity. An entirety of the vaporization surface is arranged around the infrared radiator. A gap is formed between the vaporization surface and the infrared radiator.

Abstract: An aerosol-forming apparatus includes: a vaporization assembly having: a liquid storage body with a liquid storage vaporization cavity for storing aerosol-forming substrate; and a heating body for heating and vaporizing the aerosol-forming substrate when power is applied. The heating body is slidably connected to the liquid storage body between a first location and a second location. The heating body is located outside the aerosol-forming substrate when the heating body is located at the first location. At least a part of the heating body protrudes into the aerosol-forming substrate when the heating body is located at the second location.

Abstract: A heating assembly includes: an outer surface for contacting an aerosol-forming medium. A part of the outer surface is relatively recessed to form a low surface energy structure of the heating assembly, the low surface energy structure having a micro-scale structure and/or a nano-scale structure. In an embodiment, the heating assembly includes a substrate; a heating layer; and an insulative and thermally conductive layer. The heating layer is stacked between the substrate and the insulative and thermally conductive layer. A surface of a side of the insulative and thermally conductive layer away from the heating layer forms the outer surface.

Abstract: A vaporizer includes a base assembly and a vaporization core. The base assembly is provided with an air inlet channel in communication with the outside. The vaporization core forms a vaporization cavity and is configured to communicate with the air inlet channel of the base assembly. The vaporization core has a vaporization surface configured to vaporize a vaporization medium and define a part of a boundary of the vaporization cavity. A tangent of the air inlet channel at a connection point in communication with the vaporization cavity and a tangent of the vaporization surface form an acute angle.

Abstract: A heating assembly includes: a porous ceramic substrate for guiding a to-be-vaporized substrate; and a heating layer for heating and vaporizing the to-be-vaporized substrate. The heating layer includes a porous structure. The heating layer is partially filled in the porous ceramic substrate. In an embodiment, a portion of the heating layer is filled in the porous ceramic substrate along a thickness direction, and an other portion thereof is disposed outside the porous ceramic substrate.

Abstract: A heating body includes: a porous ceramic body having a preheating member, the preheating member including a porous infrared ceramic structure; and a heating member located on the porous ceramic body, the heating member providing heat for the preheating member and vaporizing preheated liquid. In an embodiment, the porous ceramic body includes a substrate. The preheating member is located on the substrate. The substrate includes a porous ceramic structure. The heating member is completely located in the preheating member and is close to the substrate, or is located at a junction of the substrate and the preheating member.

Abstract: A vaporizer includes: an ultrasonic vaporization assembly having: a liquid inlet surface and a first support surface surrounding an edge of the liquid inlet surface, the first support surface and the liquid inlet surface being located on a same side of the ultrasonic vaporization assembly such that liquid enters the ultrasonic vaporization assembly from the liquid inlet surface to be vaporized to form liquid vapor; and a heating assembly attached to the first support for preheating liquid reaching near the liquid inlet surface.

Abstract: A manufacturing method for a heating tube includes: step S1: preparing a tubular blank including a substrate blank, an electric heating blank layer being arranged on an inner side of the substrate blank, and an infrared radiation blank layer being arranged on an inner side of the electric heating blank layer; and step S2: molding the tubular blank by sintering.

Abstract: A vaporization core for an electronic vaporization device includes: a porous body; and a heating film arranged on a surface of the porous body. The porous body has at least one unit layer, the at least one unit layer having a liquid storage advantage layer and a liquid locking advantage layer combined with the liquid storage advantage layer. The heating film is combined with a surface of the liquid locking advantage layer and at least partially infiltrates in the liquid locking advantage layer.

Abstract: A porous body for an electronic vaporization device includes: a first surface; a second surface opposite the first surface; and at least two unit layers sequentially arranged along a direction from the first surface to the second surface, one layer of the at least two unit layers including at least a liquid storage advantage layer or a liquid locking advantage layer, and each other unit layer of the at least two unit layers including a liquid storage advantage layer and a liquid locking advantage layer combined with the liquid storage advantage layer.

Abstract: A vaporization core for an electronic vaporization device includes: a porous body; and a heating film arranged on a surface of the porous body. The porous body has at least one unit layer including a liquid storage advantage layer and a liquid locking advantage layer combined with the liquid storage advantage layer. The heating film is combined with a surface of the liquid storage advantage layer and at least partially infiltrates in the liquid storage advantage layer.

Abstract: A heating body detachably disposed in a aerosol-generation device is disclosed. The heating body includes a housing and a heating element. The housing is configured to accommodate an aerosol-generation substrate and includes an air inlet hole and an air outlet hole. The heating element is disposed in the housing and configured to generate heat through an eddy current in an alternating magnetic field. The aerosol-generation substrate generates an aerosol in response to the heat from the heating element.

Abstract: An electromagnetic induction heating element includes: a substrate; an insulating layer arranged on the substrate; and a temperature sensing layer arranged on the insulating layer. A material of the substrate is a metal elementary substance or alloy. The temperature sensing layer includes a temperature measuring circuit formed by sintering resistance slurry.

Abstract: A heating body includes: a substrate; a heating layer arranged on the substrate; and a protruding structure layer arranged on the heating layer. The protruding structure layer includes a plurality of protruding units arranged on the heating layer at intervals or the protruding structure layer has a grid shape. In an embodiment, the heating body further includes: an insulating and heat-conducting layer arranged between the protruding structure layer and the heating layer.

Abstract: A heating assembly includes: a heating element having a substrate and a heating region, an overlapping region and a conductive region being located on the substrate and sequentially distributed in an axial direction of the substrate and connected, the heating region being provided with a heating circuit which extends to the overlapping region, and the conductive region being provided with a conductive circuit which extends to the overlapping region and is connected with the heating circuit in an overlapping manner or in parallel; and a fixing base, one end of the fixing base fixing the heating element, the fixing base being at least partially in contact with the overlapping region.