The left results are contemporary, the right are decades old. That includes editions of the same book --- surely the newer edition is going to be preferred by most readers.
I guess. That's not immediately clear to me. However, browsing around on Google Books suggests to me that it is the corpus which changed, not the algorithms.
> surely the newer edition is going to be preferred by most readers.
Why? Where different editions exist, the reader will want to know which one they're getting, but they're unlikely to systematically prefer newer editions.
But also, Google Books isn't aimed at "readers". You're not supposed to read books through it. It's aimed at searchers. Searchers are even less likely to prefer newer editions.
> they're unlikely to systematically prefer newer editions
That seems wrong to me. Generally when a new edition of something is put out it's (at least nominally) because they've made improvements.
("At least nominally" because it may happen that a publisher puts out different editions regularly simply because by doing so they can get people to keep buying them -- e.g., if some university course uses edition E of book B then students may feel that they have to get that specific edition, and the university may feel that they have to ask for the latest edition rather than an earlier one so that students can reliably get hold of it, so if the publisher puts out a new edition every year that's just different for the sake of being different then that may net them a lot of sales. But I don't think it's true for most books with multiple editions that later ones aren't systematically better than earlier ones.)
The left results are contemporary, the right are decades old. That includes editions of the same book --- surely the newer edition is going to be preferred by most readers.
I guess. That's not immediately clear to me. However, browsing around on Google Books suggests to me that it is the corpus which changed, not the algorithms.
The corpus is still the same, like searching the name of the book will find it, but the full text search.
> surely the newer edition is going to be preferred by most readers.
Why? Where different editions exist, the reader will want to know which one they're getting, but they're unlikely to systematically prefer newer editions.
But also, Google Books isn't aimed at "readers". You're not supposed to read books through it. It's aimed at searchers. Searchers are even less likely to prefer newer editions.
> they're unlikely to systematically prefer newer editions
That seems wrong to me. Generally when a new edition of something is put out it's (at least nominally) because they've made improvements.
("At least nominally" because it may happen that a publisher puts out different editions regularly simply because by doing so they can get people to keep buying them -- e.g., if some university course uses edition E of book B then students may feel that they have to get that specific edition, and the university may feel that they have to ask for the latest edition rather than an earlier one so that students can reliably get hold of it, so if the publisher puts out a new edition every year that's just different for the sake of being different then that may net them a lot of sales. But I don't think it's true for most books with multiple editions that later ones aren't systematically better than earlier ones.)