self self exit? Layer #1 attention Pruning Layer #N Matching no exit? yes! matchability similarity images A local features B <latexit sha1_base64="sGScxVPZ5yVzivKihlbkx5X+bfM=">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</latexit> p A <latexit sha1_base64="AT4FWDS3vmt4CLG/ezI148tR5AQ=">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</latexit> p B <latexit sha1_base64="ENdw5w7DzFyMTcYa4zs53AdJrQA=">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</latexit> d B <latexit sha1_base64="PsaLD2Mv4BuDKV4DY8PhlB54U48=">AAACRHicbVDLTsMwEHR4lvIqcOQSUSFBD1WCKuDI48KxSBQqNaFynG1r1XYi2ylUUb6BK/wQ/8A/cENcEW6bA21ZydJ4Znc9niBmVGnH+bAWFpeWV1YLa8X1jc2t7dLO7r2KEkmgQSIWyWaAFTAqoKGpZtCMJWAeMHgI+tcj/WEAUtFI3OlhDD7HXUE7lGBtqIZXCR8v26WyU3XGZc8DNwdllFe9vWMde2FEEg5CE4aVarlOrP0US00Jg6zoJQpiTPq4Cy0DBeag/HTsNrMPDRPanUiaI7Q9Zv9OpJgrNeSB6eRY99SsNiL/01qJ7pz7KRVxokGQyUOdhNk6skdft0MqgWg2NAATSY1Xm/SwxESbgKY2hQMaq9z188T2lIuAm7sEAU8k4hyLMPUqWcv1Uy/gqTdyJnladrMsK5pw3dko58H9SdU9rdZua+WLqzzmAtpHB+gIuegMXaAbVEcNRBBFL+gVvVnv1qf1ZX1PWhesfGYPTZX18wvgBLGu</latexit> d A cross assignment <latexit sha1_base64="+R8ETE7Hij8x8HNVdpggh7Ao4p8=">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</latexit> c <latexit sha1_base64="+R8ETE7Hij8x8HNVdpggh7Ao4p8=">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</latexit> c confidence