here are some...
a) giving the supposed abuser a companion, who sticks with them all the time or at least when they're anywhere near the survivor.
b) accountability process: usually these suck and are exercises in self-righteousness on the part of the process members, but sometimes they're not. and sometimes, even if they are, the recipient of the process can respond in good faith anyway.
c) vigilante action: nothing necessarily wrong with this, and since i firmly believe that talking is not the solution to all problems, this can make sense. obviously not all the time, and it supposes (as with many approaches to solutions to this issue) that there is clarity about who is at fault for the situation. (most situations, as i have already mentioned, are not clear.)
d) support groups for for either or both or all members of the conflict (not in the same group, which i hope is obvious). if the other members of the support group are relevant to the attendees, this can work really well, but it's most common that the recipients of the process (especially the one accused of violence) are flakey. it can also be hard to find enough people to have a group. but the process of on-going groups explicitly structured around at least a few people sharing intimate information about their lives and relationships can be really helpful. groups that are of all strangers might be ok too, but that's a different kind of crapshoot.
e) sometimes individual therapy can work.
f) if we had (intentional) hypnotists in our mix, we could try that. i guess that's my crazy thought.
g) putting the word out about someone to strategic people in the mix, people who will follow it up appropriately. someone moved to town and wanted to join a fight club and the main guy (who'd heard about the conflict from friends out of town) said that he'd have to go to therapy for a year (or something) before he joined the club. the guy didn't do it, but also i didn't hear anything more about him acting inappropriately with women. but who knows how bad the situation was in the first place... anyway. that might have worked. obviously just spreading the word to random people is what normally happens and that just makes people take accusations less seriously.
edit: oh - i guess i think that the topic is different superficially for anarchists than for a lot of the straight world because there's a willingness to talk about these things (in some cases an insistence on talking about them)--at least on a theoretical level (which doesn't seem to translate to talking about specifics or actual problem-solving). we're like the left in that way.
but on a deeper level, we're not different at all, because most of our theory/talk is still based on an understanding of women being weak and needing protecting, a perspective on women that is inherent in the society we live in (at least in the parts of the u.s. that i have been in).