I don't think so! It does have Insight as a not-so-dynamic difficulty adjustment, but it seems a lot more subtle than this and doesn't have a respawn activation. I guess it's more similar to Demon's Souls World Tendency but less obfuscated.
I think they want to channel you into the Chalice Dungeons for this, but not all the regular bosses show up in there. Once you get a Chalice you can use it on vacant headstones with some reagents to enter a randomly generated dungeon, and the rewards are usually more reagents or new Chalices, and you can reset/remove them as you see fit. So, you can find a Chalice with a boss refight in it and then clear it multiple times.
You can also sort by seed, so if someone has generated a particularly nice dungeon (lots of Blood Echoes, interesting bosses, rare weapon drop) they can give people the id... but I've not figured out how this actually works!