JP5359531B2 - Genetic processing apparatus, genetic processing method and program - Google Patents

Description

  The present invention relates to a genetic processing apparatus, a genetic processing method, and a program.

  A method for generating an image filter using evolutionary computation such as a genetic algorithm or genetic programming is known (see Non-Patent Document 1). In this method, a new image filter is generated by repeating operations such as crossover, mutation, and selection for an image filter a plurality of times. According to such a method, an image filter having a complicated structure that is optimal for each case and difficult to obtain analytically can be designed with less effort.

Masayoshi Maebuchi and two others, “Study on Image Filter Design Using Genetic Algorithm” [online], Computer Utilization Education Council, [March 20, 2008 search], Internet <URL: http: //www.ciec. or.jp/event/2003/papers/pdf/E00086.pdf>

  By the way, in the method of generating an image filter by such evolutionary calculation, a fitness indicating how much the image filter is adapted to the target image filter is calculated for each image filter of each generation. This fitness level increases as the generation of image filters progresses through evolutionary computation. However, as the generation progresses, the increase slows down. In some cases, the fitness does not increase no matter how many generations advance, and as a result, the target image filter may not be obtained. In such a case, the generation of the image filter must be repeated again from the first generation, and the calculation cost becomes enormous.

  In order to solve the above problems, in the first aspect of the present invention, at each generation, at least one previous generation in which a plurality of processing components that process input data and output a processing result as output data is combined. A generator that generates a current-generation converter from the converter by genetic processing, and a fitness that calculates the fitness for conversion from the learning input data to the learning target data for each of the current-generation converters When the increment of the fitness between the calculation unit and at least two generations of the previous generation and the current generation is higher than a reference value, the conversion of at least one generation after the next generation based on the conversion of the previous generation And a genetic processing device, a genetic processing method, and a program.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

FIG. 1 shows a configuration of a genetic processing apparatus 10 according to an embodiment of the present invention. FIG. 2 shows an example of the converter 20 having a configuration in which the processing components 22 according to this embodiment are combined in series. FIG. 3 shows an example of the converter 20 having a configuration in which the processing component 22 according to this embodiment is combined with a tree structure. FIG. 4 shows an example of genetic operations performed on the converter 20 having a configuration in which the processing components 22 according to this embodiment are combined in series. FIG. 5 shows an example of a crossover operation performed on the converter 20 having a configuration in which the processing components 22 according to the present embodiment are combined in a tree structure. FIG. 6 shows an example of a mutation operation performed on the converter 20 having a configuration in which the processing component 22 according to this embodiment is combined with a tree structure. FIG. 7 shows a processing flow of the genetic processing apparatus 10 according to the present embodiment. FIG. 8 shows an example of the transition of the highest value of fitness in each generation according to the present embodiment. FIG. 9 shows an example of the processing flow in step S14 of FIG. FIG. 10 shows an example of the number of remaining generations set in the converter 20 according to this embodiment. FIG. 11 shows an example of a hardware configuration of a computer 1900 according to this embodiment.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 shows a configuration of a genetic processing apparatus 10 according to the present embodiment. The genetic processing device 10 generates a plurality of generations of converters including a converter 20 that combines input and output of a plurality of processing components 22 that process input data and output processing results as output data based on evolutionary calculation. Evolve over time. Then, the genetic processing device 10 generates a converter 20 suitable for converting learning input data into learning target data.

  The genetic processing device 10 is realized by a computer as an example. Moreover, the converter 20 may be an image filter as an example.

  The genetic processor 10 includes a converter storage unit 34, a learning input data storage unit 36, a conversion processing unit 38, a learning output data storage unit 40, a learning target data storage unit 42, and a fitness calculation. Unit 44, selection unit 46, update unit 48, generation unit 50, temporary storage unit 52, and control unit 54. The converter storage unit 34 stores a plurality of converters 20 having different configurations.

  The learning input data storage unit 36 stores learning input data to be converted by the converter 20. As an example, the learning input data may be a sample of data that is actually given to the converter 20 in an application to which the converter 20 generated by the genetic processing device 10 is applied. When the converter 20 is an image filter, the learning input data may be, for example, an image generated in advance by a user or a captured image.

  The conversion processing unit 38 sequentially acquires the plurality of converters 20 stored in the converter storage unit 34. The conversion processing unit 38 converts the learning input data stored in the learning input data storage unit 36 by each acquired converter 20 to generate each of the learning output data.

  The learning output data storage unit 40 stores the learning output data generated by the conversion processing unit 38. As an example, the learning output data storage unit 40 stores each of the generated learning output data in association with the converted converter 20.

  The learning target data storage unit 42 stores learning target data that is the target of the learning output data generated by converting the learning input data. As an example, the learning target data may be a sample of data that the converter 20 should actually output in an application to which the converter 20 generated by the genetic processing device 10 is applied. When the converter 20 is an image filter, the learning target data may be, for example, an image generated in advance by a user or a captured image.

  The goodness-of-fit calculation unit 44 calculates the goodness of the conversion from the learning input data to the learning target data for each of the current generation converters 20 stored in the converter storage unit 34. Here, the fitness is an index value indicating whether or not the learning input data is suitable for conversion into learning target data. The higher the fitness value, the more the learning input data becomes the learning target data. It is suitable for conversion.

  The selection unit 46 selects at least one converter 20 among the plurality of converters 20 stored in the converter storage unit 34. In this case, the selection unit 46 preferentially selects the converter 20 having a higher fitness. More specifically, the selection unit 46 selects at least one converter 20 to be left by a technique that models natural selection of living things. As an example, the selection unit 46 selects at least one converter 20 by genetic calculation such as elite selection and roulette selection based on the fitness of each of the plurality of converters 20 stored in the converter storage unit 34.

  The update unit 48 leaves the converter 20 selected by the selection unit 46 among the plurality of converters 20 stored in the converter storage unit 34, and tricks the converter 20 not selected by the selection unit 46. . For example, the update unit 48 hesitates by deleting the converter 20 from the converter storage unit 34.

  The generation unit 50 generates a new converter 20 from the at least one converter 20 stored in the converter storage unit 34 by genetic processing. That is, in each generation, the generation unit 50 generates the current generation converter 20 by genetic processing with at least one previous generation converter 20 as a parent. Then, the generation unit 50 writes the generated new converter 20 in the converter storage unit 34.

  For example, the generation unit 50 acquires from the converter storage unit 34 at least one converter 20 remaining in the update process of the converter 20 by the update unit 48. Subsequently, as an example, the generation unit 50 performs a genetic operation such as crossover and mutation on the acquired at least one converter 20 to generate a new converter 20. Then, as an example, the generation unit 50 writes the generated new converter 20 in the converter storage unit 34. Thereby, the converter storage unit 34 can store at least one converter 20 remaining in the update process and a new converter 20 generated by the generation unit 50.

  The temporary storage unit 52 temporarily stores the converter 20 designated as a storage converter by the control unit 54, separately from the converter 20 stored in the converter storage unit 34.

  When the increase in the fitness between at least two generations of the current generation and the previous generation before the current generation is higher than the reference value, the control unit 54 uses the converter 20 of the previous generation to generate at least one after the next generation. Control is performed to increase the frequency of generating one generation of converters 20. As an example, the control unit 54 temporarily stores the previous generation converter 20 as a storage converter when the increase in fitness between the current generation and the previous generation prior to the current generation is higher than a reference value. The data is stored in the storage unit 52. Then, the control unit 54 uses the storage converter stored in the temporary storage unit 52 in at least one generation after the next generation as the converter 20 of at least one generation after the next generation, and the converter storage unit 34. Add to.

  Such a genetic processing device 10 includes a conversion process by the conversion processing unit 38, a fitness calculation process by the fitness calculation unit 44, a converter 20 selection process by the selection unit 46, an update process and a generation unit by the update unit 48. The process of generating a new converter 20 by 50 is repeated a plurality of times (for example, a plurality of generations). Thereby, the genetic processing apparatus 10 can generate the converter 20 suitable for converting the learning input data into the learning target data using the evolutionary calculation.

  FIG. 2 shows an example of the converter 20 having a configuration in which the processing components 22 are combined in series. FIG. 3 shows an example of the converter 20 having a configuration in which the processing components 22 are combined in a tree structure.

  As an example, the converter 20 may have a configuration in which a plurality of processing components 22 are combined in series as shown in FIG. Further, as an example, the converter 20 may have a configuration in which a plurality of processing components 22 are combined in a tree structure as shown in FIG. Moreover, the converter 20 may have a configuration having a plurality of output ends with respect to one input end as an example. Moreover, the converter 20 may have a configuration having a plurality of input ends and a plurality of output ends as an example.

  The converter 20 having a configuration in which the processing components 22 are combined in a tree structure receives input data from the processing components 22 at the end of the tree structure, and outputs output data from the highest processing component 22 in the tree structure. Further, in such a converter 20, the same input data is given to each of the plurality of terminal processing components 22. Alternatively, such a converter 20 may be provided with different input data for each of the plurality of terminal processing components 22.

  Further, for example, the converter 20 may be an image filter that combines processing components 22 that are a plurality of filter components that respectively convert an input image into an output image. In this case, each processing component 22 receives the image data output from the processing component 22 arranged in the preceding stage, performs an operation on the received image data, and gives it to the processing component 22 arranged in the subsequent stage. In this case, the genetic processing apparatus 10 evolves an image filter group including a plurality of image filters over a plurality of generations based on evolutionary calculation.

  Moreover, the converter 20 may be the structure which combined the processing component 22 which is hardware as an example. The converter 20 may have a configuration in which processing components 22 that are programs for performing operations on data are combined. Further, the converter 20 may have a configuration in which processing components 22 that are arithmetic expressions representing arithmetic contents to be applied to data are combined.

  Further, the converter 20 may convert, for example, a one-dimensional data string, a two-dimensional data group, a three-dimensional data group, or a further multidimensional data group. The one-dimensional data string is, for example, time series data or an array data string. The two-dimensional data group is, for example, image data in which a plurality of pixel data is arranged in a two-dimensional space. The three-dimensional data group is, for example, volume data in which data values representing color or density are arranged at each lattice point in the three-dimensional space. Further, the converter 20 may output data having a dimension different from the input data.

  Each of the plurality of processing components 22 is, for example, a binarization operation, a histogram operation, a smoothing operation, an edge detection operation, a morphology operation and / or an operation in a frequency space (for example, a low-pass filtering operation and a high-pass filtering operation), etc. Perform unary operations. Further, each of the plurality of processing components 22 includes, for example, an average operation, a difference operation, and / or a fuzzy operation (for example, an OR operation, an AND operation, an algebraic sum, an algebraic product, a limit sum, a limit product, an intense sum, and an intense sum). Binary operations such as product) may be performed.

  FIG. 4 shows an example of genetic operations performed on the converter 20 having a configuration in which the processing components 22 are combined in series. FIG. 5 shows an example of a crossover operation performed on the converter 20 having a configuration in which the processing components 22 are combined in a tree structure. FIG. 6 shows an example of a mutation operation performed on the converter 20 having a configuration in which the processing components 22 are combined in a tree structure.

  For example, the generation unit 50 performs a crossover operation, which is an example of a genetic operation, on two or more converters 20 to generate two or more new converters 20. As an example, as illustrated in FIGS. 4 and 5, the generation unit 50 converts a part group 24 </ b> A of at least one converter 20 </ b> A that has already been generated to another converter 20 </ b> B that has already been generated. New transducers 20E and 20F are generated by replacing at least a part group 24B. The component group 24 is a member that represents a set of at least one processing component 22.

  Further, as an example, the generation unit 50 performs a mutation operation, which is an example of a genetic operation, on a single converter 20 to generate a new single converter 20. For example, as illustrated in FIG. 4 and FIG. 6, the generation unit 50 replaces a part group 24 </ b> C of the already generated one converter 20 </ b> C with, for example, another part group 24 </ b> G selected at random. Then, a new converter 20G is generated.

  For example, the generation unit 50 may leave the current generation converter 20 as it is as the next generation converter 20. As an example, as illustrated in FIG. 4, the generation unit 50 generates a next-generation converter 20H that includes the configuration of the processing component 22 of the converter 20D as it is.

  FIG. 7 shows a processing flow of the genetic processing apparatus 10. The genetic processing apparatus 10 repeatedly executes the processes in steps S12 to S17 a plurality of times (for example, a plurality of generations) (S11, S18).

  In each generation, first, the conversion processing unit 38 generates learning output data obtained by converting the learning input data by the converter 20 for each of the plurality of converters 20 included in the current generation converter group. (S12). The conversion processing unit 38 stores the generated learning output data in the learning output data storage unit 40 in association with the converter 20.

  Subsequently, the fitness level calculation unit 44 calculates the fitness level for each of the plurality of converters 20 included in the current generation transducer group (S13). As an example, the fitness level calculation unit 44 calculates the similarity level or the approximation level between the learning output data and the learning target data as the fitness level.

  Subsequently, the control unit 54 performs addition of the converter 20 or temporary storage processing of the converter 20 (S14). Details of the processing in step S14 will be further described in FIG.

  Subsequently, the selection unit 46 preferentially selects the converter 20 having a high fitness among the plurality of converters 20 included in the current generation converter group (S15). For example, the selection unit 46 selects the converter 20 having a higher fitness than the reference value.

  Further, as an example, the selection unit 46 may select a converter 20 in a range in which the fitness is predetermined from the top among the plurality of converters 20 included in the current generation converter group. Moreover, the selection part 46 may select the converter 20 at random on the conditions set so that the converter 20 with higher adaptability may be selected with a higher probability as an example. As an example, the selection unit 46 selects one converter 20 having the highest fitness in the last generation.

  Subsequently, the update unit 48 updates the converter group stored in the converter storage unit 34 (S16). More specifically, the update unit 48 causes the converter 20 selected in step S15 among the plurality of converters 20 included in the current generation converter group to remain in the next generation, and replaces the other converters 20 with each other. The converter group is updated by hesitating. For example, the update unit 48 hesitates by deleting the converter 20 that was not selected in step S15 from the converter storage unit 34.

  Subsequently, the generation unit 50 performs a genetic operation such as crossover and mutation on at least one converter 20 remaining in the converter group by the update process, thereby generating one or more new converters. 20 is generated (S17). Then, the generation unit 50 stores the remaining converter 20 and the new converter 20 in the converter storage unit 34 as a plurality of converters 20 included in the next-generation converter group. Note that the generation unit 50 does not execute the process in the last generation.

  The genetic processing apparatus 10 repeatedly executes the above processing for a plurality of generations (for example, tens of generations or hundreds of generations or more), and performs processing up to the last generation (for example, the Nth generation, where N is a natural number of 2 or more). After the execution, the flow is exited (S18). In this way, the genetic processing device 10 can generate the converter 20 suitable for converting the learning input data into the learning target data using the evolutionary calculation.

  FIG. 8 shows an example of the transition of the highest value of fitness in each generation. As shown in FIG. 8, the maximum value of the adaptability of the converter 20 in each generation is changed stepwise and becomes higher as the generation progresses. That is, after a state in which the maximum value of the fitness is constant continues for a plurality of generations, the transition of the maximum value of the fitness is increased and a state in which the maximum value of the fitness is constant continues for a plurality of generations is repeated.

  Here, when the highest value of the fitness level increases, it is highly likely that the generation immediately before the increase includes a converter having a factor that increases the fitness level. Therefore, the genetic processing apparatus 10 sets the converter of the generation immediately before the increase that has caused the increase in the fitness so as not to be deceived by temporarily storing or extending the life. Thus, the possibility of increasing the fitness can be increased.

  Therefore, the control unit 54 converts at least one generation after the next generation based on the previous generation converter 20 when the increment of the fitness between the previous generation and the current generation is higher than the reference value. The frequency of generating the vessel 20 is increased. Thereby, the genetic processing apparatus 10 can increase the possibility of increasing the fitness of the converter 20, and as a result, the possibility of generating the target converter can be increased.

  More specifically, the control unit 54 stores at least one converter 20 included in the converter group immediately before the maximum value of the fitness level increases when the maximum value of the fitness level increases more than the reference value. The data is stored in the temporary storage unit 52 as a converter. That is, when the increment of the maximum value of the fitness between at least two generations of the previous generation and the current generation is higher than the reference value, the control unit 54 uses the previous generation converter 20 as a storage converter in the temporary storage unit 52. To save.

  Further, the control unit 54 stores the storage converter stored in the temporary storage unit 52 in the converter storage unit 34 as the converter 20 of at least one generation after the next generation in at least one generation after the next generation. Add. As a result, the control unit 54 determines that at least one generation after the next generation based on the previous generation converter 20 when the increment of the fitness between at least two generations of the previous generation and the current generation is higher than the reference value. The frequency which produces | generates the converter 20 can be raised.

  FIG. 9 shows an example of the processing flow in step S14 of FIG. The genetic processing device 10 executes the following processing in step S14 of FIG.

  First, the control unit 54 detects the highest value of the suitability from the suitability of each of the current generation converters 20 stored in the converter storage unit 34 (S21). Then, the control unit 54 stores the detected maximum value of the matching level in association with the generation number.

  Subsequently, the control unit 54 calculates the increment of the maximum value of the fitness between at least two generations of the previous generation and the current generation (S22). For example, the control unit 54 subtracts the highest value of the previous generation's fitness from the highest value of the current generation's fitness, and uses the subtraction result as the highest value of the fitness between at least two generations of the previous and current generations. Is the increment of.

  Subsequently, the control unit 54 determines whether or not the increase in the highest value of the fitness between at least two generations of the previous generation and the current generation is higher than the reference value (S23). As an example, the control unit 54 increments the maximum value of the fitness value between two generations calculated by subtracting the highest value of the fitness value of the previous generation from the highest value of the fitness value of the current generation. It may be determined whether or not.

  Subsequently, when the increment of the maximum value of the fitness between at least two generations of the previous generation and the current generation is higher than the reference value (Yes in S23), the control unit 54 sets the previous generation converter 20 as a storage converter. Save in the temporary storage unit 52. In step S23, the control unit 54 may store the previous-generation converter 20 having a matching degree equal to or higher than a predetermined threshold as a storage converter. That is, the control unit 54 does not need to store the converter 20 that is unlikely to cause an increase in the fitness level because the fitness level is too low.

  In addition, when the increment of the maximum value of conformity between at least two generations of the previous generation and the current generation is equal to or less than the reference value (No in S23), the control unit 54 determines the maximum value of the conformity between multiple generations. An increment is calculated (S25). As an example, the control unit 54 subtracts the highest value of the fitness level of a generation before a predetermined number of generations (for example, 10 generations before, 20 generations before, etc.) from the highest value of the fitness level of the current generation, Let the subtraction result be the increment of the highest value of fitness between multiple generations.

  Subsequently, the control unit 54 determines whether or not the increase in the maximum value of the fitness level among a plurality of generations is equal to or less than a predetermined value (S26). As an example, the controller 54 subtracts the highest fitness value of a generation that is a predetermined number of generations from the highest fitness value of the current generation and calculates the highest fitness between a plurality of generations. It may be determined whether or not the value increment is zero.

  Subsequently, when the increment of the maximum value of the fitness between the plurality of generations is equal to or less than a predetermined value (Yes in S26), the control unit 54 converts the storage converter stored in the temporary storage unit 52 into the current generation conversion. The data is added to the converter storage unit 34 as a device 20 (S27). In this case, the control unit 54 sets the storage converter added in step S27 so that it does not hesitate at least in the current generation.

  And when the process of step S24 is complete | finished, when the process of step S27 is complete | finished, or when it is judged in step S26 that the increment of the highest value of the adaptability between several generations is larger than predetermined value (S26) No), the control unit 54 goes out of the processing flow and proceeds to step S15 in FIG. In this way, the control unit 54 can perform addition of the converter 20 or temporary storage processing of the converter 20.

  As described above, according to the genetic processing device 10, for example, when the progress of the evolution of the converter 20 becomes slow, the mutation rate and the crossover rate can be increased to facilitate the progress. Thereby, according to the genetic processing apparatus 10, possibility that the target converter 20 can be obtained can be made high with few calculation costs (including calculation time).

  FIG. 10 shows an example of the number of remaining generations set in the converter 20. In place of or in addition to the processing described in FIG. 8 and FIG. 9, the control unit 54 changes the previous generation converter 20 to the next generation when the increment of the maximum fitness value between the two generations is higher than the reference value. It may remain until a predetermined number of generations after the generation.

  For example, the control unit 54 sets a parameter that decreases as the generation progresses to the converter 20 of the previous generation when the increment of the highest value of the fitness between at least two generations is higher than the reference value. More specifically, the control unit 54 sets parameters for each converter using a table as shown in FIG.

  Further, the control unit 54 decreases the parameter set for each of the converters 20 by 1 each time the generation progresses. Then, the control unit 54 causes each of the previous generation converters 20 in which the number of remaining generations is set to remain in the converter group until the parameter becomes 0 regardless of the degree of fitness.

  Thereby, the control unit 54, based on the previous generation converter 20, at least one of the next generation and the subsequent generations when the increase in the maximum value of the fitness between the previous generation and the current generation is higher than the reference value. The frequency of generating two generations of transducers 20 can be increased. Therefore, the genetic processing apparatus 10 can increase the possibility of increasing the fitness of the converter 20, and as a result, can increase the possibility of generating the target converter.

  FIG. 11 shows an example of a hardware configuration of a computer 1900 according to this embodiment. A computer 1900 according to this embodiment is connected to a CPU peripheral unit having a CPU 2000, a RAM 2020, a graphic controller 2075, and a display device 2080 that are connected to each other by a host controller 2082, and to the host controller 2082 by an input / output controller 2084. Input / output unit having communication interface 2030, hard disk drive 2040, and CD-ROM drive 2060, and legacy input / output unit having ROM 2010, flexible disk drive 2050, and input / output chip 2070 connected to input / output controller 2084 With.

  The host controller 2082 connects the RAM 2020 to the CPU 2000 and the graphic controller 2075 that access the RAM 2020 at a high transfer rate. The CPU 2000 operates based on programs stored in the ROM 2010 and the RAM 2020 and controls each unit. The graphic controller 2075 acquires image data generated by the CPU 2000 or the like on a frame buffer provided in the RAM 2020 and displays it on the display device 2080. Instead of this, the graphic controller 2075 may include a frame buffer for storing image data generated by the CPU 2000 or the like.

  The input / output controller 2084 connects the host controller 2082 to the communication interface 2030, the hard disk drive 2040, and the CD-ROM drive 2060, which are relatively high-speed input / output devices. The communication interface 2030 communicates with other devices via a network. The hard disk drive 2040 stores programs and data used by the CPU 2000 in the computer 1900. The CD-ROM drive 2060 reads a program or data from the CD-ROM 2095 and provides it to the hard disk drive 2040 via the RAM 2020.

  The input / output controller 2084 is connected to the ROM 2010, the flexible disk drive 2050, and the relatively low-speed input / output device of the input / output chip 2070. The ROM 2010 stores a boot program that the computer 1900 executes at startup and / or a program that depends on the hardware of the computer 1900. The flexible disk drive 2050 reads a program or data from the flexible disk 2090 and provides it to the hard disk drive 2040 via the RAM 2020. The input / output chip 2070 connects the flexible disk drive 2050 to the input / output controller 2084 and inputs / outputs various input / output devices via, for example, a parallel port, a serial port, a keyboard port, a mouse port, and the like. Connect to controller 2084.

  A program provided to the hard disk drive 2040 via the RAM 2020 is stored in a recording medium such as the flexible disk 2090, the CD-ROM 2095, or an IC card and provided by the user. The program is read from the recording medium, installed in the hard disk drive 2040 in the computer 1900 via the RAM 2020, and executed by the CPU 2000.

  A program that is installed in the computer 1900 and causes the computer 1900 to function as the genetic processing device 10 includes a converter storage module, a learning input data storage module, a conversion processing module, a learning output data storage module, and a learning target. A data storage module, a fitness calculation module, a selection module, an update module, a generation module, a temporary storage module, and a control module are provided. These programs or modules work with the CPU 2000 or the like to change the computer 1900 into the converter storage unit 34, the learning input data storage unit 36, the conversion processing unit 38, the learning output data storage unit 40, and the learning target data storage unit. 42, the fitness calculation unit 44, the selection unit 46, the update unit 48, the generation unit 50, the temporary storage unit 52, and the control unit 54.

  The information processing described in these programs is read into the computer 1900, whereby the converter storage unit 34, which is a specific means in which the software and the various hardware resources described above cooperate, the learning input data storage Unit 36, conversion processing unit 38, learning output data storage unit 40, learning target data storage unit 42, fitness calculation unit 44, selection unit 46, update unit 48, generation unit 50, temporary storage unit 52, and control unit 54 Function as. And the specific genetic processing apparatus 10 according to the intended purpose is constructed | assembled by implement | achieving the calculation or processing of the information according to the intended purpose of the computer 1900 in this embodiment by these specific means.

  As an example, when communication is performed between the computer 1900 and an external device or the like, the CPU 2000 executes a communication program loaded on the RAM 2020 and executes a communication interface based on the processing content described in the communication program. A communication process is instructed to 2030. Under the control of the CPU 2000, the communication interface 2030 reads transmission data stored in a transmission buffer area or the like provided on a storage device such as the RAM 2020, the hard disk drive 2040, the flexible disk 2090, or the CD-ROM 2095, and sends it to the network. The reception data transmitted or received from the network is written into a reception buffer area or the like provided on the storage device. As described above, the communication interface 2030 may transfer transmission / reception data to / from the storage device by a DMA (direct memory access) method. Instead, the CPU 2000 transfers the storage device or the communication interface 2030 as a transfer source. The transmission / reception data may be transferred by reading the data from the data and writing the data to the communication interface 2030 or the storage device of the transfer destination.

  The CPU 2000 is all or necessary from among files or databases stored in an external storage device such as a hard disk drive 2040, a CD-ROM drive 2060 (CD-ROM 2095), and a flexible disk drive 2050 (flexible disk 2090). This portion is read into the RAM 2020 by DMA transfer or the like, and various processes are performed on the data on the RAM 2020. Then, CPU 2000 writes the processed data back to the external storage device by DMA transfer or the like. In such processing, since the RAM 2020 can be regarded as temporarily holding the contents of the external storage device, in the present embodiment, the RAM 2020 and the external storage device are collectively referred to as a memory, a storage unit, or a storage device. Various types of information such as various programs, data, tables, and databases in the present embodiment are stored on such a storage device and are subjected to information processing. Note that the CPU 2000 can also store a part of the RAM 2020 in the cache memory and perform reading and writing on the cache memory. Even in such a form, the cache memory bears a part of the function of the RAM 2020. Therefore, in the present embodiment, the cache memory is also included in the RAM 2020, the memory, and / or the storage device unless otherwise indicated. To do.

  In addition, the CPU 2000 performs various operations, such as various operations, information processing, condition determination, information search / replacement, etc., described in the present embodiment, specified for the data read from the RAM 2020 by the instruction sequence of the program. Is written back to the RAM 2020. For example, when performing the condition determination, the CPU 2000 determines whether the various variables shown in the present embodiment satisfy the conditions such as large, small, above, below, equal, etc., compared to other variables or constants. When the condition is satisfied (or not satisfied), the program branches to a different instruction sequence or calls a subroutine.

  Further, the CPU 2000 can search for information stored in a file or database in the storage device. For example, in the case where a plurality of entries in which the attribute value of the second attribute is associated with the attribute value of the first attribute are stored in the storage device, the CPU 2000 displays the plurality of entries stored in the storage device. The entry that matches the condition in which the attribute value of the first attribute is specified is retrieved, and the attribute value of the second attribute that is stored in the entry is read, thereby associating with the first attribute that satisfies the predetermined condition The attribute value of the specified second attribute can be obtained.

  The program or module shown above may be stored in an external recording medium. As the recording medium, in addition to the flexible disk 2090 and the CD-ROM 2095, an optical recording medium such as DVD or CD, a magneto-optical recording medium such as MO, a tape medium, a semiconductor memory such as an IC card, and the like can be used. Further, a storage device such as a hard disk or RAM provided in a server system connected to a dedicated communication network or the Internet may be used as a recording medium, and the program may be provided to the computer 1900 via the network.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

DESCRIPTION OF SYMBOLS 10 Genetic processor, 20 Converter, 22 Processing components, 24 Parts group, 34 Converter storage part, 36 Learning input data storage part, 38 Conversion processing part, 40 Learning output data storage part, 42 Learning target data Storage unit, 44 fitness calculation unit, 46 selection unit, 48 update unit, 50 generation unit, 52 temporary storage unit, 54 control unit, 1900 computer, 2000 CPU, 2010 ROM, 2020 RAM, 2030 communication interface, 2040 hard disk drive, 2050 Flexible disk drive, 2060 CD-ROM drive, 2070 I / O chip, 2075 Graphic controller, 2080 Display device, 2082 Host controller, 2084 I / O controller, 2090 Flexible disk, 20 95 CD-ROM

Claims (9)

A generation unit that generates a current generation converter by genetic processing from at least one previous generation converter that combines a plurality of processing components that process input data and output processing results as output data in each generation. When,
For each of the current generation converters, a fitness calculation unit that calculates the fitness for conversion from learning input data to learning target data; and
The frequency of generating at least one generation of converters after the next generation based on the previous generation of converters when the increment of the fitness between the previous generation and the current generation is higher than a reference value A control unit that enhances
A genetic processing apparatus comprising: The control unit stores the previous generation converter as a storage converter when the increment of the fitness between the two generations is higher than the reference value, and in at least one generation after the next generation, the The genetic processing apparatus according to claim 1, wherein the storage converter is at least one generation of converters after the next generation. The genetic processing device according to claim 2, wherein when the increment of fitness between a plurality of generations is equal to or less than a predetermined value, the control unit sets the storage converter as the current generation converter. The control unit causes the previous generation converter to remain for a predetermined number of generations after the next generation when an increase in fitness between the two generations is higher than the reference value. Genetic processing equipment. The controller sets a parameter that decreases each time a generation progresses for the previous generation converter when the increment of the fitness between the two generations is higher than the reference value, and converts the previous generation conversion. The genetic processing device according to claim 4, wherein the vessel is left until the parameter becomes zero. The control unit, when the maximum increase in the conformity of the converter between the previous generation and the current generation is higher than the reference value, based on the previous generation converter, The genetic processing device according to claim 1, wherein the frequency of generating at least one generation of the converter is increased. The generating unit uses a plurality of filter components that respectively convert an input image to an output image as the plurality of processing components, and combines at least one previous generation image filter that combines the plurality of filter components with the at least one previous generation. The genetic processing device according to any one of claims 1 to 6, wherein a current-generation image filter is generated by genetic processing as the converter. Generation step for generating a current generation converter by genetic processing from at least one previous generation converter combining a plurality of processing components that process input data and output processing results as output data in each generation When,
For each of the current generation converters, a fitness calculation step for calculating a fitness for conversion from learning input data to learning target data; and
The frequency of generating at least one generation of converters after the next generation based on the previous generation of converters when the increment of the fitness between the previous generation and the current generation is higher than a reference value Control steps to enhance,
A genetic processing method comprising:   A program that causes a computer to function as the genetic processing device according to any one of claims 1 to 7.

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