WO2025005491A1 - 샘플링 주기가 변경된 데이터를 획득하는 전자 장치 및 그 제어 방법 - Google Patents
샘플링 주기가 변경된 데이터를 획득하는 전자 장치 및 그 제어 방법 Download PDFInfo
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- G06N3/00—Computing arrangements based on biological models
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- G06N3/044—Recurrent networks, e.g. Hopfield networks
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- G06N3/0464—Convolutional networks [CNN, ConvNet]
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- G06N3/048—Activation functions
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- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/06—Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons
- G06N3/063—Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using electronic means
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- G06N3/08—Learning methods
- G06N3/09—Supervised learning
Definitions
- This document relates to an electronic device for acquiring data with a changed sampling period and a control method thereof.
- Time series classification is actively used in problems such as activity recognition, power usage monitoring, and defect classification in manufacturing. Recently, a huge amount of time series data is generated/acquired in real time, but there is a limit to continuously storing high-resolution data in the hardware (e.g., memory) of electronic devices. For example, in the healthcare field, when storing user medical data in electronic devices, the storage cycle of the sensor may be reduced due to the storage capacity limitation of the electronic device. Accordingly, accurate time series classification may be difficult.
- a control method of an electronic device can be provided that can improve the performance of a time series classification model by performing time series classification using a small amount of data acquired and stored according to a high sampling period and most of the data acquired and stored according to a low sampling period, in a state where some data according to a high sampling period is stored in the electronic device.
- An electronic device includes at least one sensor, a memory, and at least one processor, wherein the memory includes instructions that, when executed, cause the at least one processor to generate second data including information on properties of data corresponding to a first point in time among first data acquired during a first time interval through the at least one sensor at a first sampling period, the first point in time being a point in time included in the first time interval, interpolate the generated second data to generate third data based on a second sampling period having a different sampling period from the first sampling period, and apply a weight to data corresponding to at least one restoration target point in time among the generated third data to generate fourth data based on the second sampling period, wherein the weight is determined based on a correlation between a property of the data corresponding to the at least one restoration target point in time and the first data acquired during the first time interval, and wherein the data corresponding to the at least one restoration target point in time may include data not acquired by the at least one sensor.
- a method for controlling an electronic device includes: generating second data including information on properties of data corresponding to a first point in time among first data acquired during a first time interval through at least one sensor of the electronic device with one sampling period; wherein the first point in time is a time included in the first time interval, and wherein interpolating the generated second data generates third data based on a second sampling period having a different sampling period from the first sampling period; and generating fourth data based on the second sampling period by applying a weight to data corresponding to at least one restoration target point in time among the generated third data, wherein the weight is determined based on a correlation between a property of the data corresponding to the restoration target point in time and the first data acquired during the first time interval, and wherein the data corresponding to the restoration target point in time may include data not acquired by the at least one sensor.
- FIG. 2 is an exemplary diagram for explaining a function or operation of acquiring data (e.g., fourth data) with a changed sampling period according to one embodiment of the present document.
- data e.g., fourth data
- FIG. 3a is an exemplary diagram illustrating a function or operation of training a reconstructor and/or a classification module using data acquired at a high sampling rate, according to one embodiment of the present document.
- FIG. 3b is an exemplary diagram for explaining a function or operation of obtaining data with a changed sampling period and classifying a class of data with a changed sampling period using a reconstructor and/or a classification module according to one embodiment of the present document.
- FIG. 4 is an exemplary flowchart illustrating a process for performing the function or operation described in FIG. 3a.
- FIGS. 5 and 6 are exemplary drawings for explaining the function or operation of an up-sampler included in a reconstruction module according to one embodiment of the present document.
- FIG. 7a is an exemplary drawing for explaining a comparative example in which data at a restoration target point in time restored according to a conventional technique does not match data that should have actually been measured.
- FIG. 7b is an exemplary drawing illustrating an embodiment in which data at a point in time when restoration is performed according to one embodiment of the present document substantially matches data that should have actually been measured.
- FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to various embodiments.
- an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network).
- the electronic device (101) may communicate with the electronic device (104) via the server (108).
- the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197).
- the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added.
- some of these components e.g., the sensor module (176), the camera module (180), or the antenna module (197) may be integrated into one component (e.g., the display module (160)).
- the processor (120) may control at least one other component (e.g., a hardware or software component) of an electronic device (101) connected to the processor (120) by executing, for example, software (e.g., a program (140)), and may perform various data processing or calculations.
- the processor (120) may store a command or data received from another component (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the command or data stored in the volatile memory (132), and store result data in a nonvolatile memory (134).
- the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121).
- a main processor (121) e.g., a central processing unit or an application processor
- an auxiliary processor (123) e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor
- the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function.
- the auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.
- the auxiliary processor (123) may control at least a portion of functions or states associated with at least one of the components of the electronic device (101) (e.g., the display module (160), the sensor module (176), or the communication module (190)), for example, while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state.
- the auxiliary processor (123) e.g., an image signal processor or a communication processor
- the auxiliary processor (123) may include a hardware structure specialized for processing artificial intelligence models.
- the artificial intelligence models may be generated through machine learning. Such learning may be performed, for example, in the electronic device (101) itself on which the artificial intelligence model is executed, or may be performed through a separate server (e.g., server (108)).
- the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above.
- the artificial intelligence model may include a plurality of artificial neural network layers.
- the artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), deep Q-networks, or a combination of two or more of the above, but is not limited to the examples described above.
- the artificial intelligence model may additionally or alternatively include a software structure.
- the memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101).
- the data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto.
- the memory (130) can include volatile memory (132) or nonvolatile memory (134).
- the program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).
- the input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101).
- the input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).
- the audio output module (155) can output an audio signal to the outside of the electronic device (101).
- the audio output module (155) can include, for example, a speaker or a receiver.
- the speaker can be used for general purposes such as multimedia playback or recording playback.
- the receiver can be used to receive an incoming call. According to one embodiment, the receiver can be implemented separately from the speaker or as a part thereof.
- the display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101).
- the display module (160) can include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device.
- the display module (160) can include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.
- the audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can obtain sound through an input module (150), or output sound through an audio output module (155), or an external electronic device (e.g., an electronic device (102)) (e.g., a speaker or a headphone) directly or wirelessly connected to the electronic device (101).
- an electronic device e.g., an electronic device (102)
- a speaker or a headphone directly or wirelessly connected to the electronic device (101).
- the sensor module (176) can detect an operating state (e.g., power or temperature) of the electronic device (101) or an external environmental state (e.g., user state) and generate an electric signal or data value corresponding to the detected state.
- the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.
- the interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)).
- the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
- HDMI high definition multimedia interface
- USB universal serial bus
- SD card interface Secure Digital Card
- connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., the electronic device (102)).
- the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).
- the haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that a user can perceive through a tactile or kinesthetic sense.
- the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
- the camera module (180) can capture still images and moving images.
- the camera module (180) can include one or more lenses, image sensors, image signal processors, or flashes.
- the power management module (188) can manage power supplied to the electronic device (101).
- the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).
- PMIC power management integrated circuit
- the battery (189) can power at least one component of the electronic device (101).
- the battery (189) can include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.
- the communication module (190) may support establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., the electronic device (102), the electronic device (104), or the server (108)), and performance of communication through the established communication channel.
- the communication module (190) may operate independently from the processor (120) (e.g., the application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication.
- the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module or a power line communication module).
- a wireless communication module (192) e.g., a cellular communication module, a short-range wireless communication module, or a GNSS (global navigation satellite system) communication module
- a wired communication module (194) e.g., a local area network (LAN) communication module or a power line communication module.
- a corresponding communication module may communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)).
- a first network (198) e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)
- a second network (199) e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)
- a computer network e.g.,
- the wireless communication module (192) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196) to identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199).
- subscriber information e.g., an international mobile subscriber identity (IMSI)
- IMSI international mobile subscriber identity
- the wireless communication module (192) can support a 5G network and next-generation communication technology after a 4G network, for example, NR access technology (new radio access technology).
- the NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), terminal power minimization and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)).
- eMBB enhanced mobile broadband
- mMTC massive machine type communications
- URLLC ultra-reliable and low-latency communications
- the wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate.
- a high-frequency band e.g., mmWave band
- the wireless communication module (192) may support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna.
- the wireless communication module (192) may support various requirements specified in an electronic device (101), an external electronic device (e.g., an electronic device (104)), or a network system (e.g., a second network (199)).
- the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL) each, or 1 ms or less for round trip) for URLLC realization.
- a peak data rate e.g., 20 Gbps or more
- a loss coverage e.g., 164 dB or less
- U-plane latency e.g., 0.5 ms or less for downlink (DL) and uplink (UL) each, or 1 ms or less for round trip
- the antenna module (197) can transmit or receive signals or power to or from the outside (e.g., an external electronic device).
- the antenna module (197) can include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB).
- the antenna module (197) can include a plurality of antennas (e.g., an array antenna).
- at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199) can be selected from the plurality of antennas by, for example, the communication module (190).
- a signal or power can be transmitted or received between the communication module (190) and the external electronic device through the selected at least one antenna.
- another component e.g., a radio frequency integrated circuit (RFIC)
- RFIC radio frequency integrated circuit
- the antenna module (197) may form a mmWave antenna module.
- the mmWave antenna module may include a printed circuit board, an RFIC positioned on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) positioned on or adjacent a second side (e.g., a top side or a side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.
- a first side e.g., a bottom side
- a plurality of antennas e.g., an array antenna
- peripheral devices e.g., a bus, a general purpose input and output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)
- GPIO general purpose input and output
- SPI serial peripheral interface
- MIPI mobile industry processor interface
- commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199).
- Each of the external electronic devices (102, or 104) may be the same or a different type of device as the electronic device (101).
- all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of executing the function or service itself or in addition, request one or more external electronic devices to perform at least a part of the function or service.
- One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101).
- the electronic device (101) may process the result as it is or additionally and provide it as at least a part of a response to the request.
- cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used.
- the electronic device (101) may provide an ultra-low latency service by using, for example, distributed computing or mobile edge computing.
- the external electronic device (104) may include an IoT (Internet of Things) device.
- the server (108) may be an intelligent server using machine learning and/or a neural network.
- the external electronic device (104) or the server (108) may be included in the second network (199).
- the electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.
- FIG. 2 is an exemplary diagram for explaining a function or operation of acquiring data (e.g., fourth data) with a changed sampling period according to one embodiment of the present document.
- FIG. 3b is an exemplary diagram for explaining a function or operation of acquiring data with a changed sampling period and classifying a class of the data with a changed sampling period using a reconstructor and/or a classification module according to one embodiment of the present document.
- FIG. 5 and FIG. 6 are exemplary diagrams for explaining a function or operation of an up sampler (314) included in a reconstructor module (310) according to one embodiment of the present document.
- an electronic device (101) e.g., a processor (120)
- the first data may include, for example, data illustrated in FIG. 6. , data , or data
- the second data according to one embodiment of the present document may correspond to at least one of the data shown in FIG.
- the property according to one embodiment of the present document may include, for example, trend information (e.g., information on whether the data value increases or decreases) of the first data during a time interval specified with respect to a first point in time (e.g., a interval 10 minutes before and after 40 minutes as the center), phase information (e.g., whether it is a sine function waveform) of the first data during a time interval specified with respect to the first point in time (e.g., a interval 10 minutes before and after 40 minutes as the center), and/or information on data determined to be unnecessary for up-sampling among data acquired during a time interval specified with respect to the first point in time (e.g., a interval 10 minutes before and after 40 minutes as the center).
- trend information e.g., information on whether the data value increases or decreases
- phase information e.g., whether it is a sine function waveform
- the first data e.g., a time interval specified with respect to the first point in time
- phase information e.g
- the function or operation of converting the first data into the second data according to one embodiment of the present document may be performed by the encoder (312) included in the reconstruction module (310) according to one embodiment of the present document.
- An encoder (312) according to one embodiment of the present document may generate second data including information related to properties of first data.
- An encoder (312) according to one embodiment of the present document may optionally include at least one attention layer and/or a convolution layer.
- a sampling period of the first data and a sampling period of the second data according to one embodiment of the present document may have substantially the same sampling period (e.g., 1 minute).
- An electronic device (101) (e.g., processor (120)) may, in operation 220, interpolate the second data generated according to operation 210 to generate third data based on a second sampling period (e.g., 10 seconds) having a different sampling period from the first sampling period (e.g., 1 minute).
- Operation 220 according to one embodiment of the present document may be performed by, for example, a reconstruction module (310) included in the processor (120).
- the third data according to one embodiment of the present document may be, for example, data illustrated in FIG. 6.
- Operation 220 according to one embodiment of the present document may be performed by an encoder (312) and/or an up-sampler (314) included in the processor (120).
- An electronic device (101) (e.g., processor (120)) according to one embodiment of the present document, in operation 230, generates third data (e.g., data) generated according to operation 220. ) can generate fourth data based on the second sampling period by applying a weight to data (e.g., data at the restoration target point in time that is not acquired by at least one sensor (e.g., sensor module (176)) corresponding to at least one restoration target point in time (e.g., a point in time when 40 minutes and 30 seconds have passed since data acquisition).
- the fourth data may be, for example, data illustrated in FIG. 6.
- the function or operation of the up sampler (314) according to one embodiment of this document to generate fourth data by applying weights will be described in more detail with reference to FIGS. 5 and 6.
- the electronic device (101) (e.g., the up sampler (314)) may, in operation 510, acquire trend and phase information for a restoration target point in time (e.g., a point in time when 40 minutes and 10 seconds, 40 minutes and 20 seconds, 40 minutes and 30 seconds, 40 minutes and 40 seconds, and 40 minutes and 50 seconds have elapsed from the point in time when the data was first acquired, respectively) among interpolated data (e.g., the second data).
- the trend and phase information may be input as an input (e.g., Q) of at least one attention layer (314b) included in the up sampler (314).
- the electronic device (101) (e.g., the up sampler (314)) according to one embodiment of the present document may, in operation 520, acquire interpolated data (e.g., the data ) can obtain trend and phase information for the entire time interval (e.g., 50 minutes).
- the trend and phase information according to one embodiment of the present document can be input as an input (e.g., K) of at least one attention layer (314b) included in the up sampler (314).
- the electronic device (101) (e.g., the up sampler (314)) according to one embodiment of the present document, in operation 530, interpolates data (e.g., data ) can obtain information on interpolated data (e.g., data) according to one embodiment of this document.
- information can be input as an input (e.g., V) of at least one attention layer (314b) included in the up sampler (314).
- the electronic device (101) e.g., up sampler (314)
- compares the trend and phase information acquired according to operations 510 and 520 in operation 540 to interpolate data e.g., data
- interpolated data e.g., data
- the electronic device (101) may generate (e.g., restore) data corresponding to the restoration target time point by assigning a high weight to the data corresponding to the restoration target time point (e.g., the time points at which 40 minutes 10 seconds, 40 minutes 20 seconds, 40 minutes 30 seconds, 40 minutes 40 seconds, and 40 minutes 50 seconds have passed from the time point at which data was first acquired, respectively.
- the up-sampler (314) may include at least one Fully Connected Layer (314a), at least one Attention Layer (314b), and/
- An electronic device (101) e.g., a processor (120)
- upsampled data e.g., data
- Time series classification can be performed by a classification module (320) included in the processor (120).
- the electronic device (101) e.g., processor (120)
- the electronic device (101) can perform first data (e.g., data) as input to the reconstruction module (310).
- first data e.g., data
- data can be input into the reconstruction module (310).
- first data is, data
- the electronic device (101) e.g., processor (120)
- the electronic device (101) may input the output data that has passed through the reconstruction module (310) into the classification module (320).
- the electronic device (101) e.g., processor (120)
- the electronic device (101) e.g., processor (120)
- the electronic device (101) may control the classification module (320) so that the data having different sampling periods and/or phases input to the classification module (320) are classified into the same class by correcting the error of the data input to the classification module (320) using a consistency regulation technique when there are two or more types of data input to the classification module (320) (e.g., when data having different sampling periods and/or phases are input to the classification module (320).
- the classification module (320) according to one embodiment of this document can learn a class for a specific cycle and/or phase through such a function or operation, and the result of such learning can be applied to data input to the classification module (320) thereafter.
- FIG. 3a is an exemplary diagram illustrating a function or operation of training a reconstructor and/or a classification module using data acquired at a high sampling rate according to one embodiment of the present document.
- FIG. 4 is an exemplary flowchart illustrating a process for performing the function or operation described in FIG. 3a.
- an electronic device (101) e.g., a processor (120)
- acquires data can be used to train the reconstruction module (310) and/or the classification module (320).
- the electronic device (101) e.g., processor (120)
- the electronic device (101) can, in operation 420, generate and/or classify restored data using the result of the learning according to operation 410.
- the electronic device (101) according to one embodiment of the present document can generate and/or classify data obtained based on a high sampling period (e.g., ) by downsampling one or more downsampled data (e.g. , ) can be generated.
- An electronic device (101) according to one embodiment of the present document can generate one or more down-sampled data (e.g., , ) is input to the reconstruction module (310) and the output data (e.g. , ) can be obtained.
- An electronic device (101) according to one embodiment of the present document can obtain data (e.g., data obtained based on a high sampling period) ) and output data (e.g. ) can be compared with each other.
- An electronic device (101) (e.g., a reconstruction module (310)) according to one embodiment of the present document can obtain data (e.g., a reconstruction module (310)) based on a high sampling period. ) and output data (e.g.
- the electronic device (101) may acquire data (e.g., the degree of similarity of the data) based on a high sampling period for the reconstruction module (310). ) and output data (e.g. ) can be trained to reduce the mean square error between the two.
- the electronic device (101) can classify the class of data input to the classification module (320).
- the electronic device (101) e.g., processor (120)
- the electronic device (101) can classify the class of data input to the classification module (320) when the types of data input to the classification module (320) are two or more (e.g., ,
- the classification module (320) can be controlled so that data with different sampling periods and/or phases input to the classification module (320) are classified into the same class.
- the classification module (320) can learn a class for a specific period and/or phase through such a function or operation, and the result of such learning can be applied to data input to the classification module (320) thereafter.
- FIG. 7a is an exemplary drawing for explaining a comparative example in which data at a restoration target point in time (730) restored according to a conventional technique does not match data (710) that should have actually been measured.
- FIG. 7b is an exemplary drawing for explaining an embodiment in which data at a restoration target point in time (730) restored according to one embodiment of the present document substantially matches data (710) that should actually have been measured.
- FIG. 7a a comparative example is illustrated in which, in a conventional technique, data at a restored restoration target point in time (730) does not match data (710) that should have actually been measured, and therefore accurate class classification cannot be performed.
- FIG. 7b an embodiment is illustrated in which data at a restored restoration target point in time (730) that is restored based on data (720) acquired with a low sampling period substantially matches data (710) that should actually have been measured, according to one embodiment of the present document. In this way, according to various embodiments of the present document, accurate time series classification can be performed using restored data.
- An electronic device e.g., the electronic device (101) of FIG. 1) according to one embodiment of the present document includes at least one sensor (e.g., the sensor module (176) of FIG. 1), a memory, and at least one processor (e.g., the processor (120) of FIG.
- a method for controlling an electronic device includes: generating second data including information on properties of data corresponding to a first point in time among first data acquired during a first time interval through at least one sensor of the electronic device with one sampling period; wherein the first point in time is a time included in the first time interval, and wherein interpolating the generated second data generates third data based on a second sampling period having a different sampling period from the first sampling period; and generating fourth data based on the second sampling period by applying a weight to data corresponding to at least one restoration target point in time among the generated third data, wherein the weight is determined based on a correlation between a property of the data corresponding to the restoration target point in time and the first data acquired during the first time interval, and wherein the data corresponding to the restoration target point in time may include data not acquired by the at least one sensor.
- Electronic devices may be devices of various forms.
- the electronic devices may include, for example, portable communication devices (e.g., smart phones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliance devices.
- portable communication devices e.g., smart phones
- portable multimedia devices portable medical devices
- cameras e.g., wearable devices
- home appliance devices electronic devices according to embodiments of this document are not limited to the above-described devices.
- first, second, or first or second may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order).
- a component e.g., a first
- another component e.g., a second
- functionally e.g., a third component
- module used in various embodiments of this document may include a unit implemented in hardware, software or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example.
- a module may be an integrally configured component or a minimum unit of the component or a part thereof that performs one or more functions.
- a module may be implemented in the form of an application-specific integrated circuit (ASIC).
- ASIC application-specific integrated circuit
- Various embodiments of the present document may be implemented as software (e.g., a program (2540)) including one or more instructions stored in a storage medium (e.g., an internal memory (2536) or an external memory (2538)) readable by a machine (e.g., an electronic device (2501)).
- a processor of the machine e.g., the electronic device (2501)
- the one or more instructions may include code generated by a compiler or code executable by an interpreter.
- the machine-readable storage medium may be provided in the form of a non-transitory storage medium.
- 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.
- the method according to various embodiments disclosed in the present document may be provided as included in a computer program product.
- the computer program product may be traded between a seller and a buyer as a commodity.
- the computer program product may be distributed in the form of a machine-readable storage medium (e.g., a compact disc read only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play StoreTM) or directly between two user devices (e.g., smart phones).
- an application store e.g., Play StoreTM
- at least a part of the computer program product may be at least temporarily stored or temporarily generated in a machine-readable storage medium, such as a memory of a manufacturer's server, a server of an application store, or an intermediary server.
- each of the components may include a single or multiple entities, and some of the multiple entities may be separated and placed in other components.
- one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added.
- the multiple components e.g., modules or programs
- the integrated component may perform one or more functions of each of the multiple components identically or similarly to those performed by the corresponding component of the multiple components before the integration.
- the operations performed by the modules, programs or other components may be executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.
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Abstract
Description
Claims (15)
- 전자 장치에 있어서,적어도 하나의 센서,메모리, 및적어도 하나의 프로세서를 포함하고,상기 메모리는, 상기 적어도 하나의 프로세서에 의해 실행 시에, 상기 전자 장치로 하여금,제1 샘플링 주기로 상기 적어도 하나의 센서를 통해 제1 시간 구간 동안 획득된 제1 데이터 중 제1 시점에 대응하는 데이터의 속성에 대한 정보를 포함하는 제2 데이터를 생성하고, 상기 제1 시점은 상기 제1 시간 구간에 포함되는 시점이고,상기 생성된 제2 데이터를 보간(interpolation)하여, 상기 제1 샘플링 주기와 상이한 샘플링 주기를 가지는 제2 샘플링 주기에 기반한 제3 데이터를 생성하고,상기 생성된 제3 데이터 중 적어도 하나의 복원 대상 시점에 대응하는 데이터에 가중치를 적용하여 상기 제2 샘플링 주기에 기반한 제4 데이터를 생성하도록 하는 인스트럭션들을 포함하고,상기 가중치는, 상기 적어도 하나의 복원 대상 시점에 대응하는 데이터의 속성과 상기 제1 시간 구간 동안 획득된 상기 제1 데이터 사이의 관련성에 기반하여 결정되고, 및상기 적어도 하나의 복원 대상 시점에 대응하는 데이터는, 상기 적어도 하나의 센서에 의하여 획득되지 않은 데이터인 것을 특징으로 하는, 전자 장치.
- 제1항에 있어서,상기 속성은, 상기 제1 시점에 대응하는 데이터의 트렌드 정보 및/또는 주기성 정보를 포함하는 것을 특징으로 하는, 전자 장치.
- 제1항 또는 제2항에 있어서,상기 메모리는, 실행 시에, 상기 적어도 하나의 프로세서로 하여금,상기 제1 샘플링 주기보다 짧은 샘플링 주기를 가지는 제3 샘플링 주기에 기반한 데이터를 다운 샘플링하여 학습을 수행하도록 하는 인스트럭션을 더 포함하는 것을 특징으로 하는, 전자 장치.
- 제1항 내지 제3항 중 어느 한 항에 있어서,상기 전자 장치는, 상기 제4 데이터의 클래스를 분류하도록 설정된 분류 모듈(classification module)을 더 포함하고,상기 메모리는, 실행 시에, 상기 적어도 하나의 프로세서로 하여금,상기 다운 샘플링 된 데이터가 상기 분류 모듈에 의해 분류된 결과들의 오차를 보정함으로써 상기 분류 모듈을 학습시키는 인스트럭션을 더 포함하는 것을 특징으로 하는, 전자 장치.
- 제1항 내지 제4항 중 어느 한 항에 있어서,상기 관련성은, 상기 복원 대상 시점에 대응하는 데이터의 속성 및 상기 제1 시간 구간 동안 획득된 상기 제1 데이터가 어텐션 레이어(attention layer)를 거쳐 출력된 결과에 기반하여 결정되는 것을 특징으로 하는, 전자 장치.
- 제1항 내지 제5항 중 어느 한 항에 있어서,상기 제2 샘플링 주기는, 상기 제1 샘플링 주기보다 짧은 샘플링 주기를 가지는 것을 특징으로 하는, 전자 장치.
- 제1항 내지 제6항 중 어느 한 항에 있어서,상기 복원 대상 시점은, 상기 제1 시간 주기에 포함되는 시점인 것을 특징으로 하는, 전자 장치.
- 제1항 내지 제7항 중 어느 한 항에 있어서,상기 메모리는, 실행 시에, 상기 적어도 하나의 프로세서로 하여금,상기 어텐션 레이어의 결과에 상기 제3 데이터를 컨볼루션하여 상기 제4 데이터를 생성하도록 하는 인스트럭션을 더 포함하는 것을 특징으로 하는, 전자 장치.
- 제1항 내지 제8항 중 어느 한 항에 있어서,상기 메모리는, 실행 시에, 상기 적어도 하나의 프로세서로 하여금,상기 분류 모듈을 이용하여 상기 제4 데이터의 클래스를 분류하도록 하는 인스트럭션을 더 포함하는 것을 특징으로 하는, 전자 장치.
- 제1항 내지 제9항 중 어느 한 항에 있어서,상기 전자 장치는, 상기 제2 데이터를 생성하는 인코더를 더 포함하고,상기 인코더는, 상기 어텐션 레이어와 컨볼루션 레이어를 포함하는 것을 특징으로 하는, 전자 장치.
- 방법에 있어서,제1 샘플링 주기로 전자 장치의 적어도 하나의 센서를 통해 제1 시간 구간 동안 획득된 제1 데이터 중 제1 시점에 대응하는 데이터의 속성에 대한 정보를 포함하는 제2 데이터를 생성하는 동작과, 상기 제1 시점은 상기 제1 시간 구간에 포함되는 시점이고,상기 생성된 제2 데이터를 보간(interpolation)하여, 상기 제1 샘플링 주기와 상이한 샘플링 주기를 가지는 제2 샘플링 주기에 기반한 제3 데이터를 생성하는 동작과,상기 생성된 제3 데이터 중 적어도 하나의 복원 대상 시점에 대응하는 데이터에 가중치를 적용하여 상기 제2 샘플링 주기에 기반한 제4 데이터를 생성하는 동작을 포함하고,상기 가중치는, 상기 복원 대상 시점에 대응하는 데이터의 속성과 상기 제1 시간 구간 동안 획득된 상기 제1 데이터 사이의 관련성에 기반하여 결정되고, 및상기 복원 대상 시점에 대응하는 데이터는, 상기 적어도 하나의 센서에 의하여 획득되지 않은 데이터인 것을 특징으로 하는, 방법.
- 제11항에 있어서,상기 속성은, 상기 제1 시점에 대응하는 데이터의 트렌드 정보 및/또는 주기성 정보를 포함하는 것을 특징으로 하는, 방법.
- 제11항 또는 제12항에 있어서,상기 제1 샘플링 주기보다 짧은 샘플링 주기를 가지는 제3 샘플링 주기에 기반한 데이터를 다운 샘플링하여 학습을 수행하는 동작을 더 포함하는 것을 특징으로 하는, 방법.
- 제11항 내지 제13항 중 어느 한 항에 있어서,상기 전자 장치는, 상기 제4 데이터의 클래스를 분류하도록 설정된 분류 모듈(classification module)을 더 포함하고,상기 전자 장치를 제어하는 방법은, 상기 다운 샘플링 된 데이터가 상기 분류 모듈에 의해 분류된 결과들의 오차를 보정함으로써 상기 분류 모듈을 학습시키는 동작을 더 포함하는 것을 특징으로 하는, 방법.
- 제11항 내지 제14항 중 어느 한 항에 있어서,상기 관련성은, 상기 복원 대상 시점에 대응하는 데이터의 속성 및 상기 제1 시간 구간 동안 획득된 상기 제1 데이터가 어텐션 레이어(attention layer)를 거쳐 출력된 결과에 기반하여 결정되는 것을 특징으로 하는, 방법.
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| US20220379492A1 (en) * | 2019-11-20 | 2022-12-01 | Hitachi, Ltd. | Information processing device and information processing method |
| JP2021140303A (ja) * | 2020-03-03 | 2021-09-16 | トヨタ自動車株式会社 | 学習方法、学習システム及び学習プログラム |
| KR20230057327A (ko) * | 2021-05-12 | 2023-04-28 | 네이버클라우드 주식회사 | 시계열 기반 이상 탐지 방법 및 시스템 |
| JP2022171732A (ja) * | 2022-03-31 | 2022-11-11 | ベイジン バイドゥ ネットコム サイエンス テクノロジー カンパニー リミテッド | 信号サンプリング品質の判定方法および装置、サンプリング品質分類モデルのトレーニング方法および装置、電子機器、記憶媒体並びにコンピュータプログラム |
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| Publication number | Publication date |
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| CN121511453A (zh) | 2026-02-10 |
| US20260119610A1 (en) | 2026-04-30 |
| EP4730165A1 (en) | 2026-04-22 |
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