Equation 2 · Part 1 · A History of How We Learned to Evaluate AI Agents
Symbol s_t
What this part means
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol s_t→Article meaning
The passage around this formula
an unweighted mean of nine task scores . Averaging like this treats all nine component tasks as equally important and, implicitly, as equally hard and equally reliably measured — an assumption nothing in the construction actually guarantees. It is a real simplifying assumption, not a neutral summary statistic, and it is exactly the assumption GLUE’s own successor abandoned.
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
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Sources cited in the article section
- [3] SQuAD: 100,000+ Questions for Machine Comprehension of Text ↗
- [4] GLUE: A Multi-Task Benchmark and Analysis Platform for Natural Language Understanding ↗
- [5] SuperGLUE: A Stickier Benchmark for General-Purpose Language Understanding Systems ↗
- [9] Dynabench: Rethinking Benchmarking in NLP ↗
These citations provide research context; check each source for the exact claim it supports.