I have had this question. How much better would common LLMs (Llama, GPTN) be if they were only trained in one language? I have to assume they would perform better, but I might be wrong.
Perform better how? Knowing more languages gives you more data and different points of view rather than just using the English corpus and culture. When I ask chatgpt for a translation it seems to understand the meaning behind the words and finds the closest thing in the other language. The datasets seem to merge in some way
Fair, but there may be overhead that doesn't need to exist. Certainly - for the limited compute my brain can accomplish - I could gain a deeper understanding of physics, if I focused on learning physics and didn't also have to simultaneously learn French.
Wouldn't a better metaphor be if a child growing up in a bilingual household would be worse at physics as an adult? My guess would be growing up bilingual would have no impact.
This hypotetical kid would have the same size of brain/number of neurons anyway. In case of LLMs one could create a model that could be smaller thakns to not including the knowlegde about unecessary languages. A problem though could be with lacking traing data in other languages.
Human is not limited by computational power of brain (or rather, it is not the limitation we encounter). We are limited by time and the fact that our machinery degrades with time (aging).
Just like adding code to textual models helps the model develop its reasoning capabilities, it seems like adding more languages helps in other areas too. What is needed is more good quality data to train on...
We also see humans get worse at specific things when they learn too much in general. There is a cut-off point to how many concepts we can learn with what skill. To be most effective, we have to specialize in the right things while continuing to acquire generalist knowledge. It’s a balancing act.
These architectures are less capable than brains in many ways. So, we should expect them to have such trade-offs. An efficient one should work fine on English, mathematical notation, and a programming language. Maybe samples of others that illustrate unique concepts. I’m also curious how many languages or concepts you can add to a given architecture before its effectiveness starts dropping.
It's not the amount that is wrong, it's how the model is trained. The model is trained for zero and few shot tasks. It is not surprising that it is performing well when you ask for that.
I can't track down the citation (either Google or DeepMind I think), but I remember reading research from a year or two ago how adding extra languages (French, German) improved English language performance. There may have also been an investigation about multi modality too, which found that adding vision or audio helped with text as well.
Interesting thought. Maybe an LLM would build deeper insight with only one training language. On the other hand, the model might overfit with just one language -- maybe multilingual models generalize better?
I think this makes sense to the extent that an understanding of the differences between language helps separate out language from the underlying meaning. However... the models that are used receive input (i.e. translate from language), and to learn / understand, and to output information (i.e. re-encode into language), do not all have to be the same.
