Function main

ci/compare_vec.c:96–129

two bin file which has 1024 float, compute similarity score

}
//! two bin file which has 1024 float, compute similarity score
int main(int argn, void** args) {
    float alpha = 2.297190;
    float beta = -2.659770;
    float threshold = 55.3;
    int feature_size = 4096;
    float* buffer_a = read_file((char*)(args[1]));
    float* buffer_b = read_file((char*)(args[2]));

    water(seed, (unsigned char*)buffer_a, feature_size);
    water(seed, (unsigned char*)buffer_b, feature_size);

    water(seed, (unsigned char*)buffer_a, feature_size);
    water(seed, (unsigned char*)buffer_b, feature_size);

    float score = 1e38f;
    size_t feature_size_in_float = feature_size / sizeof(float);
    /**
     * whole buffer is a complete feature without being seperate into two
     * segments
     */
    size_t start = 0;
    size_t end = feature_size_in_float;
    float distance = 0;
    for (size_t i = start; i < end; i++) {
        distance += (buffer_a[i] - buffer_b[i]) * (buffer_a[i] - buffer_b[i]);
    }
    float score_full = (float)(100.0f / (1.0 + exp(alpha * distance + beta)));

    score = piecewise_normalize(score_full, 0.f, 100.f, threshold, 0, 100, 80);

    printf("---->>>full_score=%f, score=%f, distance %f\n", score_full, score,
           distance);
    return 0;
}