Upload booking_remapper.py

booking_remapper.py

@@ -0,0 +1,266 @@
+
+slot_name_map = {
+    'addr': "address",
+    'post': "postcode",
+    'pricerange': "price range",
+    'arrive': "arrive by",
+    'arriveby': "arrive by",
+    'leave': "leave at",
+    'leaveat': "leave at",
+    'depart': "departure",
+    'dest': "destination",
+    'fee': "entrance fee",
+    'open': 'open hours',
+    'car': "type",
+    'car type': "type",
+    'ticket': 'price',
+    'trainid': 'train id',
+    'id': 'train id',
+    'people': 'book people',
+    'stay': 'book stay',
+    'none': '',
+    'attraction': {
+        'price': 'entrance fee'
+    },
+    'hospital': {},
+    'hotel': {
+        'day': 'book day', 'price': "price range"
+    },
+    'restaurant': {
+        'day': 'book day', 'time': 'book time', 'price': "price range"
+    },
+    'taxi': {},
+    'train': {
+        'day': 'day', 'time': "duration"
+    },
+    'police': {},
+    'booking': {}
+}
+
+
+class BookingActRemapper:
+
+    def __init__(self, ontology):
+        self.ontology = ontology
+        self.reset()
+
+    def reset(self):
+        self.current_domains_user = []
+        self.current_domains_system = []
+        self.booked_domains = []
+
+    def retrieve_current_domain_from_user(self, turn_id, ori_dialog):
+        prev_user_turn = ori_dialog[turn_id - 1]
+
+        dialog_acts = prev_user_turn.get('dialog_act', [])
+        keyword_domains_user = get_keyword_domains(prev_user_turn)
+        current_domains_temp = get_current_domains_from_act(dialog_acts)
+        self.current_domains_user = current_domains_temp if current_domains_temp else self.current_domains_user
+        next_user_domains = get_next_user_act_domains(ori_dialog, turn_id)
+
+        return keyword_domains_user, next_user_domains
+
+    def retrieve_current_domain_from_system(self, turn_id, ori_dialog):
+
+        system_turn = ori_dialog[turn_id]
+        dialog_acts = system_turn.get('dialog_act', [])
+        keyword_domains_system = get_keyword_domains(system_turn)
+        current_domains_temp = get_current_domains_from_act(dialog_acts)
+        self.current_domains_system = current_domains_temp if current_domains_temp else self.current_domains_system
+        booked_domain_current = self.check_domain_booked(system_turn)
+
+        return keyword_domains_system, booked_domain_current
+
+    def remap(self, turn_id, ori_dialog):
+
+        keyword_domains_user, next_user_domains = self.retrieve_current_domain_from_user(turn_id, ori_dialog)
+        keyword_domains_system, booked_domain_current = self.retrieve_current_domain_from_system(turn_id, ori_dialog)
+
+        # only need to remap if there is a dialog action labelled
+        dialog_acts = ori_dialog[turn_id].get('dialog_act', [])
+        spans = ori_dialog[turn_id].get('span_info', [])
+        if dialog_acts:
+
+            flattened_acts = flatten_acts(dialog_acts)
+            flattened_spans = flatten_span_acts(spans)
+            remapped_acts, error_local = remap_acts(flattened_acts, self.current_domains_user,
+                                                    booked_domain_current, keyword_domains_user,
+                                                    keyword_domains_system, self.current_domains_system,
+                                                    next_user_domains, self.ontology)
+
+            remapped_spans, _ = remap_acts(flattened_spans, self.current_domains_user,
+                                               booked_domain_current, keyword_domains_user,
+                                               keyword_domains_system, self.current_domains_system,
+                                               next_user_domains, self.ontology)
+
+            deflattened_remapped_acts = deflat_acts(remapped_acts)
+            deflattened_remapped_spans = deflat_span_acts(remapped_spans)
+
+            return deflattened_remapped_acts, deflattened_remapped_spans
+        else:
+            return dialog_acts, spans
+
+    def check_domain_booked(self, turn):
+
+        booked_domain_current = None
+        for domain in turn['metadata']:
+            if turn['metadata'][domain]["book"]["booked"] and domain not in self.booked_domains:
+                booked_domain_current = domain.capitalize()
+                self.booked_domains.append(domain)
+        return booked_domain_current
+
+
+def get_keyword_domains(turn):
+    keyword_domains = []
+    text = turn['text']
+    for d in ["Hotel", "Restaurant", "Train"]:
+        if d.lower() in text.lower():
+            keyword_domains.append(d)
+    return keyword_domains
+
+
+def get_current_domains_from_act(dialog_acts):
+
+    current_domains_temp = []
+    for dom_int in dialog_acts:
+        domain, intent = dom_int.split('-')
+        if domain in ["general", "Booking"]:
+            continue
+        if domain not in current_domains_temp:
+            current_domains_temp.append(domain)
+
+    return current_domains_temp
+
+
+def get_next_user_act_domains(ori_dialog, turn_id):
+    domains = []
+    try:
+        next_user_act = ori_dialog[turn_id + 1]['dialog_act']
+        domains = get_current_domains_from_act(next_user_act)
+    except:
+        # will fail if system act is the last act of the dialogue
+        pass
+    return domains
+
+
+def flatten_acts(dialog_acts):
+    flattened_acts = []
+    for dom_int in dialog_acts:
+        domain, intent = dom_int.split('-')
+        for slot_value in dialog_acts[dom_int]:
+            slot = slot_value[0]
+            value = slot_value[1]
+            flattened_acts.append((domain, intent, slot, value))
+
+    return flattened_acts
+
+
+def flatten_span_acts(span_acts):
+
+    flattened_acts = []
+    for span_act in span_acts:
+        domain, intent = span_act[0].split("-")
+        flattened_acts.append((domain, intent, span_act[1], span_act[2:]))
+    return flattened_acts
+
+
+def deflat_acts(flattened_acts):
+
+    dialog_acts = dict()
+
+    for act in flattened_acts:
+        domain, intent, slot, value = act
+        if f"{domain}-{intent}" not in dialog_acts.keys():
+            dialog_acts[f"{domain}-{intent}"] = [[slot, value]]
+        else:
+            dialog_acts[f"{domain}-{intent}"].append([slot, value])
+
+    return dialog_acts
+
+
+def deflat_span_acts(flattened_acts):
+
+    dialog_span_acts = []
+    for act in flattened_acts:
+        domain, intent, slot, value = act
+        if value == 'none':
+            continue
+        new_act = [f"{domain}-{intent}", slot]
+        new_act.extend(value)
+        dialog_span_acts.append(new_act)
+
+    return dialog_span_acts
+
+
+def remap_acts(flattened_acts, current_domains, booked_domain=None, keyword_domains_user=None,
+               keyword_domains_system=None, current_domain_system=None, next_user_domain=None, ontology=None):
+
+    # We now look for all cases that can happen: Booking domain, Booking within a domain or taxi-inform-car for booking
+    error = 0
+    remapped_acts = []
+
+    # if there is more than one current domain or none at all, we try to get booked domain differently
+    if len(current_domains) != 1 and booked_domain:
+        current_domains = [booked_domain]
+    elif len(current_domains) != 1 and len(keyword_domains_user) == 1:
+        current_domains = keyword_domains_user
+    elif len(current_domains) != 1 and len(keyword_domains_system) == 1:
+        current_domains = keyword_domains_system
+    elif len(current_domains) != 1 and len(current_domain_system) == 1:
+        current_domains = current_domain_system
+    elif len(current_domains) != 1 and len(next_user_domain) == 1:
+        current_domains = next_user_domain
+
+    for act in flattened_acts:
+        try:
+            domain, intent, slot, value = act
+            if f"{domain}-{intent}-{slot}" == "Booking-Book-Ref":
+                # We need to remap that booking act now
+                potential_domain = current_domains[0]
+                remapped_acts.append((potential_domain, "Book", "none", "none"))
+                if ontology_check(potential_domain, slot, ontology):
+                    remapped_acts.append((potential_domain, "Inform", "Ref", value))
+            elif domain == "Booking" and intent == "Book" and slot != "Ref":
+                # the book intent is here actually an inform intent according to the data
+                potential_domain = current_domains[0]
+                if ontology_check(potential_domain, slot, ontology):
+                    remapped_acts.append((potential_domain, "Inform", slot, value))
+            elif domain == "Booking" and intent == "Inform":
+                # the inform intent is here actually a request intent according to the data
+                potential_domain = current_domains[0]
+                if ontology_check(potential_domain, slot, ontology):
+                    remapped_acts.append((potential_domain, "OfferBook", slot, value))
+            elif domain == "Booking" and intent in ["NoBook", "Request"]:
+                potential_domain = current_domains[0]
+                if ontology_check(potential_domain, slot, ontology):
+                    remapped_acts.append((potential_domain, intent, slot, value))
+            elif f"{domain}-{intent}-{slot}" == "Taxi-Inform-Car":
+                # taxi-inform-car actually triggers the booking and informs on a car
+                remapped_acts.append((domain, "Book", "none", "none"))
+                remapped_acts.append((domain, intent, slot, value))
+            elif f"{domain}-{intent}-{slot}" in ["Train-Inform-Ref", "Train-OfferBooked-Ref"]:
+                # train-inform/offerbooked-ref actually triggers the booking and informs on the reference number
+                remapped_acts.append((domain, "Book", "none", "none"))
+                remapped_acts.append((domain, "Inform", slot, value))
+            elif domain == "Train" and intent == "OfferBooked" and slot != "Ref":
+                # this is actually an inform act
+                remapped_acts.append((domain, "Inform", slot, value))
+            else:
+                remapped_acts.append(act)
+        except Exception as e:
+            print("Error detected:", e)
+            error += 1
+
+    return remapped_acts, error
+
+
+def ontology_check(domain_, slot_, init_ontology):
+
+    domain = domain_.lower()
+    slot = slot_.lower()
+    if slot not in init_ontology['domains'][domain]['slots']:
+        if slot in slot_name_map:
+            slot = slot_name_map[slot]
+        elif slot in slot_name_map[domain]:
+            slot = slot_name_map[domain][slot]
+    return slot in init_ontology['domains'][domain]['slots']