metrics: fix SER and JGA

genienlp/metrics.py

@@ -26,7 +26,7 @@
 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
+import copy
 import logging
 from collections import Counter, OrderedDict, defaultdict
 from typing import List, Union
@@ -227,7 +227,7 @@ def compute_e2e_dialogue_score(greedy, answer, tgt_lang, args, example_ids, cont
 def computeSER(greedy, inputs):
     act_values = []
     for input in inputs:
-        act_values += QUOTED_MATCH_REGEX.findall(input)
+        act_values.append(QUOTED_MATCH_REGEX.findall(input))
 
     return compute_ser(greedy, act_values)
 
@@ -258,8 +258,8 @@ def computeJGA(greedy, answer, example_ids):
         dataset.update_state(a, answer_state)
         dataset.update_state(g, greedy_state)
 
-        full_answer.append(answer_state)
-        full_greedy.append(greedy_state)
+        full_answer.append(copy.deepcopy(answer_state))
+        full_greedy.append(copy.deepcopy(greedy_state))
 
     return compute_dst_em(full_greedy, full_answer)