안녕하세요 '머신러닝의 기본 프로세스'를 공부하고 있습니다. 2분43초~ 5분30초에서 MSE가 오차의 제곱의 합을 개수로 나눈 것으로 알고 있는데(오차 제곱의 평균) 그런데 여기에 1/2을 곱한 이유는 무엇인가요?

안녕하세요 강사님 오랜만에 인사드립니다. 강사님이 저번에 가르쳐 주셔서 labellmg 을 이용해서 직접 Dataset을 만들어공부를 하고 있습니다. 그런데 문제가 발생했습니다. 그레이스케일을 그대로 출력하는 문제입니다. 강사님 강의중 "Raccoon 데이터 세트를 YOLO V3로 학습" Code를 이용하여 학습 모델까지 만들었는데 아래 마지막 이미지와 같이 "TypeError: function takes exactly 1 argument (3 given)" 에러가 발생했습니다.  그레이스케일을 RGB로 다시 변경해주는 코드를 생성해줘야하는것은 강의를 들어서 이해했는데  어느부분 Code를 어떻게 수정해야할 지.. 막막해서 질문드립니다. 그레이이미지 그대로 디텍션 하려면 어느부분의 Code가 수정되야할 지 궁금합니다.

안녕하세요 질문이 있어서 글을 남깁니다.  builder 디렉토리에서 아래 cmd 명령어를 실행하면 아무것도 뜨지 않습니다.  >> python model_builder_test.py  그러나 아래 cmd 명령어를 실행하면 영상에서 보여주신 것처럼 Run, Ok 메시지를 확인할 수 있습니다.  (저같은 경우 Ran 19 tests in 0.099s, OK (skipped=1)라는 메시지가 떴습니다)  >> python model_builder_tf1_test.py  그래서 코드를 살펴봤는데 model_builder_test.py 에는 main 함수가 없고 model_builder_tf1_test.py에는 main 함수가 있습니다.  정확하게 표현하기 위해 아래 코드가 model_builder_test.py에는 없고 model_builder_tf1_test.py에는 있다고 말씀드리겠습니다.  if __name__ == '__main__':   tf.test.main() 혹시 영상 올리실때와 제가 실제로 실행한 시점(200519) 사이에 업데이트가 있었던 건지  아니면 model_builder_test.py를 실행했을때 Run, Ok 메시지가 잘 나와야 되는데 잘 안나온건지 궁금합니다.  감사합니다. 

Hello,We have received your quota request for smiling-parser-275018.Unfortunately, we are unable to grant you additional quota at this time. If this is a new project please wait 48h until you resubmit the request or until your Billing account has additional history.Your Sales Rep is a good Escalation Path for these requests, and we highly recommend you to reach out to them.If you have any further questions, please reply to this thread or feel free to reach out to us at gc-team@google.com.Thanks. gpu서버 할당받으려고 메일을 보냈는데 48시간을 기다리는 말인가요?ㅠ

face_recognition.face_location() 코드에서 컴퓨터가 거의 멈추ㄴ는 거와 다름이 없네요 이런 문제를 피할 수는 있는 방법은 없을까요?

제가 텐서를 영상보고 따라하니 pip install tensorflow를 하니 자동으로 2.0버전으로 설치되었다가 Session이 안되는걸 보고 2.0이 설치된걸 알았습니다 그래서 uninstall하고 난뒤 pip install tensorflow-gpu==1.15 를 설치를 하였는데 설치중에 예외 Traceback이 발생하여서 설치가 안되네요 어떻게 해결을 해야할까요? ㅠㅠ

dlib을 설치하는데 계속 이런 에러가 떠서 찾아보고 해봤는데 계속 안되는데 왜 그런지 알려주실 수 있을까요.. (ComputerVision) usang-in-ui-MacBook-Pro:~ usang-in$ pip3 install dlib Collecting dlib   Using cached https://files.pythonhosted.org/packages/63/92/05c3b98636661cb80d190a5a777dd94effcc14c0f6893222e5ca81e74fbc/dlib-19.19.0.tar.gz Building wheels for collected packages: dlib   Running setup.py bdist_wheel for dlib ... error   Complete output from command /Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-wheel-ecxo61rx --python-tag cp36:   running bdist_wheel   running build   running build_py   package init file 'dlib/__init__.py' not found (or not a regular file)   running build_ext   Building extension for Python 3.6.7 (v3.6.7:6ec5cf24b7, Oct 20 2018, 03:02:14)   Invoking CMake setup: 'cmake /private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/tools/python -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/lib.macosx-10.9-x86_64-3.6 -DPYTHON_EXECUTABLE=/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6 -DCMAKE_BUILD_TYPE=Release'   -- The C compiler identification is unknown   -- The CXX compiler identification is unknown   -- Check for working C compiler: /usr/bin/cc   -- Check for working C compiler: /usr/bin/cc -- broken   CMake Error at /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/cmake/data/CMake.app/Contents/share/cmake-3.16/Modules/CMakeTestCCompiler.cmake:60 (message):     The C compiler          "/usr/bin/cc"        is not able to compile a simple test program.        It fails with the following output:          Change Dir: /private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/temp.macosx-10.9-x86_64-3.6/CMakeFiles/CMakeTmp          Run Build Command(s):/usr/bin/make cmTC_475b6/fast && xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun                    CMake will not be able to correctly generate this project.   Call Stack (most recent call first):     CMakeLists.txt:3 (project)         -- Configuring incomplete, errors occurred!   See also "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/temp.macosx-10.9-x86_64-3.6/CMakeFiles/CMakeOutput.log".   See also "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/temp.macosx-10.9-x86_64-3.6/CMakeFiles/CMakeError.log".   Traceback (most recent call last):     File "<string>", line 1, in <module>     File "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/setup.py", line 261, in <module>       'Topic :: Software Development',     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/setuptools/__init__.py", line 129, in setup       return distutils.core.setup(**attrs)     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/core.py", line 148, in setup       dist.run_commands()     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/dist.py", line 955, in run_commands       self.run_command(cmd)     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/dist.py", line 974, in run_command       cmd_obj.run()     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/wheel/bdist_wheel.py", line 188, in run       self.run_command('build')     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/cmd.py", line 313, in run_command       self.distribution.run_command(command)     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/dist.py", line 974, in run_command       cmd_obj.run()     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/command/build.py", line 135, in run       self.run_command(cmd_name)     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/cmd.py", line 313, in run_command       self.distribution.run_command(command)     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/dist.py", line 974, in run_command       cmd_obj.run()     File "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/setup.py", line 135, in run       self.build_extension(ext)     File "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/setup.py", line 172, in build_extension       subprocess.check_call(cmake_setup, cwd=build_folder)     File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 291, in check_call       raise CalledProcessError(retcode, cmd)   subprocess.CalledProcessError: Command '['cmake', '/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/tools/python', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/lib.macosx-10.9-x86_64-3.6', '-DPYTHON_EXECUTABLE=/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6', '-DCMAKE_BUILD_TYPE=Release']' returned non-zero exit status 1.      ----------------------------------------   Failed building wheel for dlib   Running setup.py clean for dlib Failed to build dlib Installing collected packages: dlib   Running setup.py install for dlib ... error     Complete output from command /Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-record-m5vnrry6/install-record.txt --single-version-externally-managed --compile:     running install     running build     running build_py     package init file 'dlib/__init__.py' not found (or not a regular file)     running build_ext     Building extension for Python 3.6.7 (v3.6.7:6ec5cf24b7, Oct 20 2018, 03:02:14)     Invoking CMake setup: 'cmake /private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/tools/python -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/lib.macosx-10.9-x86_64-3.6 -DPYTHON_EXECUTABLE=/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6 -DCMAKE_BUILD_TYPE=Release'     -- The C compiler identification is unknown     -- The CXX compiler identification is unknown     -- Check for working C compiler: /usr/bin/cc     -- Check for working C compiler: /usr/bin/cc -- broken     CMake Error at /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/cmake/data/CMake.app/Contents/share/cmake-3.16/Modules/CMakeTestCCompiler.cmake:60 (message):       The C compiler              "/usr/bin/cc"            is not able to compile a simple test program.            It fails with the following output:              Change Dir: /private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/temp.macosx-10.9-x86_64-3.6/CMakeFiles/CMakeTmp              Run Build Command(s):/usr/bin/make cmTC_0561c/fast && xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun                                CMake will not be able to correctly generate this project.     Call Stack (most recent call first):       CMakeLists.txt:3 (project)               -- Configuring incomplete, errors occurred!     See also "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/temp.macosx-10.9-x86_64-3.6/CMakeFiles/CMakeOutput.log".     See also "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/temp.macosx-10.9-x86_64-3.6/CMakeFiles/CMakeError.log".     Traceback (most recent call last):       File "<string>", line 1, in <module>       File "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/setup.py", line 261, in <module>         'Topic :: Software Development',       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/setuptools/__init__.py", line 129, in setup         return distutils.core.setup(**attrs)       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/core.py", line 148, in setup         dist.run_commands()       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/dist.py", line 955, in run_commands         self.run_command(cmd)       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/dist.py", line 974, in run_command         cmd_obj.run()       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/setuptools/command/install.py", line 61, in run         return orig.install.run(self)       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/command/install.py", line 545, in run         self.run_command('build')       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/cmd.py", line 313, in run_command         self.distribution.run_command(command)       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/dist.py", line 974, in run_command         cmd_obj.run()       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/command/build.py", line 135, in run         self.run_command(cmd_name)       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/cmd.py", line 313, in run_command         self.distribution.run_command(command)       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/dist.py", line 974, in run_command         cmd_obj.run()       File "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/setup.py", line 135, in run         self.build_extension(ext)       File "/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/setup.py", line 172, in build_extension         subprocess.check_call(cmake_setup, cwd=build_folder)       File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 291, in check_call         raise CalledProcessError(retcode, cmd)     subprocess.CalledProcessError: Command '['cmake', '/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/tools/python', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/build/lib.macosx-10.9-x86_64-3.6', '-DPYTHON_EXECUTABLE=/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6', '-DCMAKE_BUILD_TYPE=Release']' returned non-zero exit status 1.          ---------------------------------------- Command "/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-record-m5vnrry6/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/_2/f0m32tsj68sf2fx0l4nhmh7w0000gn/T/pip-install-trs12u8b/dlib/ You are using pip version 10.0.1, however version 20.0.2 is available. You should consider upgrading via the 'pip install --upgrade pip' command.