def global_video_success(row, weights=None):
    """Create a video success measurement based on basic video stats."""
    metric_cols = ["commentCount", "dislikeCount", "favoriteCount",
                   "likeCount", "viewCount"]
    if weights is None:
        weights = [1 for _ in metric_cols]
    weights[1] = -1
    
    scores = [row[key] for key in metric_cols]
    return sum(scores)