code: private double[] loadBinaryVector(String word) throws IOException {
          Long byteOffset = termToOffset.get(word);
          if (byteOffset == null)
              return null;
  
          binarySSpace.seek(byteOffset);
  
          double[] vector = new double[dimensions];
          
          for (int col = 0; col < dimensions; ++col) {
              vector[col] = binarySSpace.readDouble();
          }
  
          return vector;
      }
docs: Loads a vector from the backing semantic space file in {@code BINARY}
  format using the predetermined offet for the word.
  
  @param word a word in the semantic space
  @return the vector for the word or {@code null} if the word does not
  exist in the semantic space