1 | import decimal
|
---|
2 | import logging
|
---|
3 | import time
|
---|
4 | from random import randint
|
---|
5 | from typing import cast
|
---|
6 | import numpy as np
|
---|
7 |
|
---|
8 | from geniusweb.actions.Accept import Accept
|
---|
9 | from geniusweb.actions.Action import Action
|
---|
10 | from geniusweb.actions.Offer import Offer
|
---|
11 | from geniusweb.actions.PartyId import PartyId
|
---|
12 | from geniusweb.bidspace.AllBidsList import AllBidsList
|
---|
13 | from geniusweb.inform.ActionDone import ActionDone
|
---|
14 | from geniusweb.inform.Finished import Finished
|
---|
15 | from geniusweb.inform.Inform import Inform
|
---|
16 | from geniusweb.inform.Settings import Settings
|
---|
17 | from geniusweb.inform.YourTurn import YourTurn
|
---|
18 | from geniusweb.issuevalue.Bid import Bid
|
---|
19 | from geniusweb.issuevalue.Domain import Domain
|
---|
20 | from geniusweb.issuevalue.Value import Value
|
---|
21 | from geniusweb.issuevalue.ValueSet import ValueSet
|
---|
22 | from geniusweb.opponentmodel import FrequencyOpponentModel
|
---|
23 | from geniusweb.party.Capabilities import Capabilities
|
---|
24 | from geniusweb.party.DefaultParty import DefaultParty
|
---|
25 | from geniusweb.profile.utilityspace.UtilitySpace import UtilitySpace
|
---|
26 | from geniusweb.profileconnection.ProfileConnectionFactory import (
|
---|
27 | ProfileConnectionFactory,
|
---|
28 | )
|
---|
29 | from geniusweb.progress.ProgressRounds import ProgressRounds
|
---|
30 | from tudelft_utilities_logging.Reporter import Reporter
|
---|
31 |
|
---|
32 |
|
---|
33 |
|
---|
34 | class Agent24(DefaultParty):
|
---|
35 | """
|
---|
36 | Tit-for-tat agent that offers bids according to the opponents bids.
|
---|
37 | """
|
---|
38 |
|
---|
39 | def __init__(self, reporter: Reporter = None):
|
---|
40 | super().__init__(reporter)
|
---|
41 | self.getReporter().log(logging.INFO, "party is initialized")
|
---|
42 | self._profile = None
|
---|
43 | self._last_received_bid: Bid = None
|
---|
44 | self._opponent_model = FrequencyOpponentModel.FrequencyOpponentModel.create()
|
---|
45 | self._issue_weights = []
|
---|
46 | self._value_changed = []
|
---|
47 | self._bids_matrix = []
|
---|
48 | self._frequency_matrix = []
|
---|
49 | self._previous_bid_enemy = 1
|
---|
50 | self._previous_bid_self = 1
|
---|
51 |
|
---|
52 | def notifyChange(self, info: Inform):
|
---|
53 |
|
---|
54 | # a Settings message is the first message that will be send to your
|
---|
55 | # agent containing all the information about the negotiation session.
|
---|
56 | if isinstance(info, Settings):
|
---|
57 | self._settings: Settings = cast(Settings, info)
|
---|
58 | self._me = self._settings.getID()
|
---|
59 |
|
---|
60 | # progress towards the deadline has to be tracked manually through the use of the Progress object
|
---|
61 | self._progress: ProgressRounds = self._settings.getProgress()
|
---|
62 |
|
---|
63 | # the profile contains the preferences of the agent over the domain
|
---|
64 | self._profile = ProfileConnectionFactory.create(
|
---|
65 | info.getProfile().getURI(), self.getReporter()
|
---|
66 | )
|
---|
67 | # ActionDone is an action send by an opponent (an offer or an accept)
|
---|
68 | elif isinstance(info, ActionDone):
|
---|
69 | action: Action = cast(ActionDone, info).getAction()
|
---|
70 |
|
---|
71 | # if it is an offer, set the last received bid
|
---|
72 | if isinstance(action, Offer):
|
---|
73 | self._last_received_bid = cast(Offer, action).getBid()
|
---|
74 | # YourTurn notifies you that it is your turn to act
|
---|
75 | elif isinstance(info, YourTurn):
|
---|
76 | action = self._myTurn()
|
---|
77 | if isinstance(self._progress, ProgressRounds):
|
---|
78 | self._progress = self._progress.advance()
|
---|
79 | self.getConnection().send(action)
|
---|
80 |
|
---|
81 | # Finished will be send if the negotiation has ended (through agreement or deadline)
|
---|
82 | elif isinstance(info, Finished):
|
---|
83 | # terminate the agent MUST BE CALLED
|
---|
84 | self.terminate()
|
---|
85 | else:
|
---|
86 | self.getReporter().log(
|
---|
87 | logging.WARNING, "Ignoring unknown info " + str(info)
|
---|
88 | )
|
---|
89 |
|
---|
90 | # lets the geniusweb system know what settings this agent can handle
|
---|
91 | # leave it as it is for this competition
|
---|
92 | def getCapabilities(self) -> Capabilities:
|
---|
93 | return Capabilities(
|
---|
94 | set(["SAOP"]),
|
---|
95 | set(["geniusweb.profile.utilityspace.LinearAdditive"]),
|
---|
96 | )
|
---|
97 |
|
---|
98 | # terminates the agent and its connections
|
---|
99 | # leave it as it is for this competition
|
---|
100 | def terminate(self):
|
---|
101 | self.getReporter().log(logging.INFO, "party is terminating:")
|
---|
102 | super().terminate()
|
---|
103 | if self._profile is not None:
|
---|
104 | self._profile.close()
|
---|
105 | self._profile = None
|
---|
106 |
|
---|
107 | # give a description of your agent
|
---|
108 | def getDescription(self) -> str:
|
---|
109 | return "The ultimate Bastard tit-for-tat agent"
|
---|
110 |
|
---|
111 | # execute a turn
|
---|
112 | def _myTurn(self):
|
---|
113 |
|
---|
114 | if self._last_received_bid is None:
|
---|
115 | bid = self._findBid(1)
|
---|
116 | action = Offer(self._me, bid)
|
---|
117 | else:
|
---|
118 | len_weights = len(self._last_received_bid.getIssues())
|
---|
119 | dict_values = list(self._last_received_bid.getIssueValues().values())
|
---|
120 | self._bids_matrix.append(dict_values)
|
---|
121 |
|
---|
122 | if len(self._issue_weights) == 0:
|
---|
123 | for i in range(len_weights):
|
---|
124 | self._issue_weights.append(1 / len_weights)
|
---|
125 | self._value_changed.append(1)
|
---|
126 | self._frequency_matrix.append({dict_values[i]: 1})
|
---|
127 |
|
---|
128 | else:
|
---|
129 | for i in range(len_weights):
|
---|
130 | last_bid = list(self._last_received_bid.getIssueValues().values())[i]
|
---|
131 | if self._bids_matrix[-1][i] != last_bid:
|
---|
132 | self._value_changed[i] *= 2
|
---|
133 | self._issue_weights[i] = (sum(self._value_changed) - self._value_changed[i]) / \
|
---|
134 | (sum(self._value_changed) * (len_weights - 1))
|
---|
135 | if last_bid not in self._frequency_matrix[i]:
|
---|
136 | self._frequency_matrix[i][last_bid] = 1
|
---|
137 | else:
|
---|
138 | self._frequency_matrix[i][last_bid] += 1
|
---|
139 |
|
---|
140 | utility = 0
|
---|
141 | for i in range(len_weights):
|
---|
142 | utility += self._issue_weights[i] * (self._frequency_matrix[i][list(self._last_received_bid.getIssueValues().values())[i]] / sum(self._frequency_matrix[i].values()))
|
---|
143 |
|
---|
144 | bid = self._findBid(utility)
|
---|
145 | if self._isOpponentBidGood(self._last_received_bid):
|
---|
146 | action = Accept(self._me, self._last_received_bid)
|
---|
147 |
|
---|
148 | else:
|
---|
149 | # if not, find a bid to propose as counter offer
|
---|
150 | action = Offer(self._me, bid)
|
---|
151 |
|
---|
152 | # send the action
|
---|
153 | self._previous_bid_enemy = utility
|
---|
154 | return action
|
---|
155 |
|
---|
156 | # determine if bid should be accepted
|
---|
157 | def _isOpponentBidGood(self, bid: Bid) -> bool:
|
---|
158 | if bid is None:
|
---|
159 | return False
|
---|
160 | profile = self._profile.getProfile()
|
---|
161 | progress = self._progress.get(time.time() * 1000)
|
---|
162 |
|
---|
163 | # set reservation value
|
---|
164 | if self._profile.getProfile().getReservationBid() is None:
|
---|
165 | reservation = 0.0
|
---|
166 | else:
|
---|
167 | reservation = profile.getUtility(self._profile.getProfile().getReservationBid())
|
---|
168 |
|
---|
169 | # ACconst
|
---|
170 | if profile.getUtility(bid) >= 0.99:
|
---|
171 | return True
|
---|
172 |
|
---|
173 | # boulware/conceder
|
---|
174 | beta = 0.000000001 # beta: small = boulware, large = conceder, 0.5 = linear
|
---|
175 | k = 0.9
|
---|
176 | a = k + (1.0 - k) * pow(progress, (1.0 / beta))
|
---|
177 | min1 = 0.8
|
---|
178 | max1 = 1.0
|
---|
179 | utility = min1 + (1.0 - a) * (max1 - min1)
|
---|
180 | if profile.getUtility(bid) >= utility:
|
---|
181 | return True
|
---|
182 |
|
---|
183 | return progress >= 0.99 and profile.getUtility(bid) > reservation
|
---|
184 |
|
---|
185 | def _findBid(self, utility) -> Bid:
|
---|
186 | # compose a list of all possible bids
|
---|
187 | changed_utility = self._previous_bid_enemy - utility
|
---|
188 |
|
---|
189 | domain = self._profile.getProfile().getDomain()
|
---|
190 | profile = self._profile.getProfile()
|
---|
191 | all_bids = AllBidsList(domain)
|
---|
192 |
|
---|
193 | found = False
|
---|
194 | for _ in range(5000):
|
---|
195 | bid = all_bids.get(randint(0, all_bids.size() - 1))
|
---|
196 | if -0.2 < decimal.Decimal(self._previous_bid_self) - profile.getUtility(bid) - (decimal.Decimal(changed_utility) * decimal.Decimal(0.3)) < 0.05 and self._previous_bid_self - profile.getUtility(bid) < 0.1:
|
---|
197 | found = True
|
---|
198 | break
|
---|
199 | if not found:
|
---|
200 | for _ in range(5000):
|
---|
201 | bid = all_bids.get(randint(0, all_bids.size() - 1))
|
---|
202 | if self._previous_bid_self - profile.getUtility(bid) < 0.1:
|
---|
203 | break
|
---|
204 | self._previous_bid_self = profile.getUtility(bid)
|
---|
205 | return bid
|
---|