retriever = index.as_retriever(limit=2) docs = retriever.retrieve("What did the author do as a child?") for doc in docs: print("---------") print(f"Id: {doc.id_}") print(f"Score: {doc.score}") print(f"Text: {doc.text}")
这样做我们得到：
---------
Id: de01b7e1-95f8-4aa0-b4ec-45ef64816e0e
Score: 0.7793415653313153
Text: Wow, I thought, there's an audience. If I write something and put it on the web, anyone can read it. That may seem obvious now, but it was surprising then. In the print era there was a narrow channel to readers, guarded by fierce monsters known as editors. The only way to get an audience for anything you wrote was to get it published as a book, or in a newspaper or magazine. Now anyone could publish anything.
This had been possible in principle since 1993, but not many people had realized it yet. I had been intimately involved with building the infrastructure of the web for most of that time, and a writer as well, and it had taken me 8 years to realize it. Even then it took me several years to understand the implications. It meant there would be a whole new generation of essays. [11]
In the print era, the channel for publishing essays had been vanishingly small. Except for a few officially anointed thinkers who went to the right parties in New York, the only people allowed to publish essays were specialists writing about their specialties. There were so many essays that had never been written, because there had been no way to publish them. Now they could be, and I was going to write them. [12]
I've worked on several different things, but to the extent there was a turning point where I figured out what to work on, it was when I started publishing essays online. From then on I knew that whatever else I did, I'd always write essays too.
---------
Id: de01b7e1-95f8-4aa0-b4ec-45ef64816e0e
Score: 0.7770352826735559
Text: Asterix comics begin by zooming in on a tiny corner of Roman Gaul that turns out not to be controlled by the Romans. You can do something similar on a map of New York City: if you zoom in on the Upper East Side, there's a tiny corner that's not rich, or at least wasn't in 1993. It's called Yorkville, and that was my new home. Now I was a New York artist — in the strictly technical sense of making paintings and living in New York.
I was nervous about money, because I could sense that Interleaf was on the way down. Freelance Lisp hacking work was very rare, and I didn't want to have to program in another language, whichin those days would have meant C++ if I was lucky. So with my unerring nose for financial opportunity, I decided to write another book on Lisp. This would be a popular book, the sort of book that could be used as a textbook. I imagined myself living frugally off the royalties and spending all my time painting. (The painting on the cover of this book, ANSI Common Lisp, is one that I painted around this time.)
The best thing about New York for me was the presence of Idelle and Julian Weber. Idelle Weber was a painter, one of the early photorealists, and I'd taken her painting class at Harvard. I've never known a teacher more beloved by her students. Large numbers of former students kept in touch with her, including me. After I moved to New York I became her de facto studio assistant.
这些结果还不错，但并不完美。让我们尝试使用交叉编码器进行重新排序。
retriever = index.as_retriever( limit=2, rerank={ "model": "mixedbread-ai/mxbai-rerank-base-v1", "num_documents_to_rerank": 100 } ) docs = retriever.retrieve("What did the author do as a child?") for doc in docs: print("---------") print(f"Id: {doc.id_}") print(f"Score: {doc.score}") print(f"Text: {doc.text}")
Id: de01b7e1-95f8-4aa0-b4ec-45ef64816e0e Score: 0.17803585529327393 Text: What I Worked On
February 2021
Before college the two main things I worked on, outside of school, were writing and programming. I didn't write essays. I wrote what beginning writers were supposed to write then, and probably still are: short stories. My stories were awful. They had hardly any plot, just characters with strong feelings, which I imagined made them deep.
The first programs I tried writing were on the IBM 1401 that our school district used for what was then called "data processing." This was in 9th grade, so I was 13 or 14. The school district's 1401 happened to be in the basement of our junior high school, and my friend Rich Draves and I got permission to use it. It was like a mini Bond villain's lair down there, with all these alien-looking machines — CPU, disk drives, printer, card reader — sitting up on a raised floor under bright fluorescent lights.
The language we used was an early version of Fortran. You had to type programs on punch cards, then stack them in the card reader and press a button to load the program into memory and run it. The result would ordinarily be to print something on the spectacularly loud printer.
--------- Id: de01b7e1-95f8-4aa0-b4ec-45ef64816e0e Score: 0.1057136133313179 Text: I wanted not just to build things, but to build things that would last.
In this dissatisfied state I went in 1988 to visit Rich Draves at CMU, where he was in grad school. One day I went to visit the Carnegie Institute, where I'd spent a lot of time as a kid. While looking at a painting there I realized something that might seem obvious, but was a big surprise to me. There, right on the wall, was something you could make that would last. Paintings didn't become obsolete. Some of the best ones were hundreds of years old.
And moreover this was something you could make a living doing. Not as easily as you could by writing software, of course, but I thought if you were really industrious and lived really cheaply, it had to be possible to make enough to survive. And as an artist you could be truly independent. You wouldn't have a boss, or even need to get research funding.
I had always liked looking at paintings. Could I make them? I had no idea. I'd never imagined it was even possible. I knew intellectually that people made art — that it didn't just appear spontaneously — but it was as if the people who made it were a different species. They either lived long ago or were mysterious geniuses doing strange things in profiles in Life magazine. The idea of actually being able to make art, to put that verb before that noun, seemed almost miraculous.
query_engine = index.as_query_engine( streaming=True, vector_search_limit=2, vector_search_rerank={ "model": "mixedbread-ai/mxbai-rerank-base-v1", "num_documents_to_rerank": 100, }, ) results = query_engine.query("What did the author do as a child?") for text in results.response_gen: print(text, end="", flush=True)
运行此输出：
Based on the context information, as a child, the author worked on writing (writing short stories) and programming (on the IBM 1401 using Fortran) outside of school.
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