*   In `map_vectorization` optimization, reduce the degree of parallelism in
        the vectorized map node.
    *   Add variant wrapper for `absl::string_view`.
    *   Add OpKernels for some stateless maps.
    *   DType is no longer convertible to an int. Use `dtype.as_datatype_enum`
        instead of `int(dtype)` to get the same result.
    *   Support both binary and -1/1 label input in v2 hinge and squared hinge

c[j[0]] = one } else { c[j[0]] = minusOne } } return c } // coeffFromHalfByte implements CoeffFromHalfByte from FIPS 204. // // It maps a value in [0, 15] to a coefficient in [−η, η] func coeffFromHalfByte(b byte, p parameters) (fieldElement, bool) { if b > 15 { panic("internal error: half-byte out of range") } switch p.η { case 2: // Return z = 2 − (b mod 5), which maps from // // b = ( 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 ) // // to // // b%5 = ( 4, 3, 2, 1, 0, 4, 3, 2, 1, 0, 4, 3, 2,...

fieldAddMul returns a * b + c * d. This operation is fused to save a // fieldReduceOnce and a fieldReduce. func fieldAddMul(a, b, c, d fieldElement) fieldElement { x := uint32(a) * uint32(b) x += uint32(c) * uint32(d) return fieldReduce(x) } // compress maps a field element uniformly to the range 0 to 2ᵈ-1, according to // FIPS 203, Definition 4.7. func compress(x fieldElement, d uint8) uint16 { // We want to compute (x * 2ᵈ) / q, rounded to nearest integer, with 1/2 // rounding up (see FIPS 203, Section...