I think Bayesian Feed Filtering isn’t just limited to current issues alerts. When searching for everything that has been published on a particular topic (e.g. when I used to do searches on everything published on the biopolymer system I researched the crystallization of) it’s easy to get an overwhelming number of responses but difficult to focus down onto just those that are of interest. So how about doing a general search remotely via SRU, transforming the results into RSS (a page at a time) and passing them through the Bayesian feed filter?
Work I did a while back on transforming SRU responses to HTML might be a starting point (though I swore off ever again trying to do anything like that with XLSTs).