1 | import logging
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2 | import time
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3 | from decimal import Decimal
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4 | from typing import cast
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5 |
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6 | from geniusweb.actions.Accept import Accept
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7 | from geniusweb.actions.Action import Action
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8 | from geniusweb.actions.Offer import Offer
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9 | from geniusweb.bidspace.BidsWithUtility import BidsWithUtility
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10 | from geniusweb.bidspace.Interval import Interval
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11 | from geniusweb.inform.ActionDone import ActionDone
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12 | from geniusweb.inform.Finished import Finished
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13 | from geniusweb.inform.Inform import Inform
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14 | from geniusweb.inform.Settings import Settings
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15 | from geniusweb.inform.YourTurn import YourTurn
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16 | from geniusweb.issuevalue.Bid import Bid
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17 | from geniusweb.opponentmodel.FrequencyOpponentModel import FrequencyOpponentModel
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18 | from geniusweb.party.Capabilities import Capabilities
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19 | from geniusweb.party.DefaultParty import DefaultParty
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20 | from geniusweb.profileconnection.ProfileConnectionFactory import (
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21 | ProfileConnectionFactory,
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22 | )
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23 | from geniusweb.progress.ProgressRounds import ProgressRounds
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24 | from tudelft_utilities_logging.Reporter import Reporter
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25 |
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26 |
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27 | class Agent14(DefaultParty):
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28 |
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29 | def __init__(self, reporter: Reporter = None):
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30 | super().__init__(reporter)
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31 | self.getReporter().log(logging.INFO, "party is initialized")
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32 | self._last_received_bid = None
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33 | self.last_my_utility = 1
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34 | self.last_bids = []
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35 |
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36 | def notifyChange(self, info: Inform):
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37 | """This is the entry point of all interaction with your agent after is has been initialised.
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38 |
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39 | Args:
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40 | info (Inform): Contains either a request for action or information.
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41 | """
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42 |
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43 | # a Settings message is the first message that will be send to your
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44 | # agent containing all the information about the negotiation session.
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45 | if isinstance(info, Settings):
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46 | self._settings: Settings = cast(Settings, info)
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47 | self._me = self._settings.getID()
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48 |
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49 | # progress towards the deadline has to be tracked manually through the use of the Progress object
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50 | self._progress = self._settings.getProgress()
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51 | # the profile contains the preferences of the agent over the domain
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52 | self._profile = ProfileConnectionFactory.create(
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53 | info.getProfile().getURI(), self.getReporter()
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54 | )
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55 | # initialize FrequencyOpponentModel
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56 | self._opponent_model = FrequencyOpponentModel.create().With(
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57 | newDomain=self._profile.getProfile().getDomain(),
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58 | newResBid=self._profile.getProfile().getReservationBid())
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59 |
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60 | # sort all issues by relevance
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61 | profile = self._profile.getProfile()
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62 | issue_infos = BidsWithUtility._getInfo(profile, 6)
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63 | weights = self._profile.getProfile().getWeights()
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64 | issue_infos.sort(key=lambda x: weights[x.getName()])
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65 | issue_infos.reverse()
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66 |
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67 | # initialize BidsWithUtility with sorted issues
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68 | self._all_bids = BidsWithUtility(issue_infos, 6)
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69 |
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70 | # ActionDone is an action send by an opponent (an offer or an accept)
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71 | elif isinstance(info, ActionDone):
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72 | action: Action = cast(ActionDone, info).getAction()
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73 |
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74 | # if it is an offer, set the last received bid
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75 | if isinstance(action, Offer):
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76 | self._last_received_bid = cast(Offer, action).getBid()
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77 |
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78 | if self._last_received_bid:
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79 | # Adjust FrequencyOpponentModel with new bid
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80 | self._opponent_model = self._opponent_model.WithAction(action=action, progress=self._progress)
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81 | # YourTurn notifies you that it is your turn to act
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82 | elif isinstance(info, YourTurn):
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83 | action = self._myTurn()
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84 | if isinstance(self._progress, ProgressRounds):
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85 | self._progress = self._progress.advance()
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86 | self.getConnection().send(action)
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87 |
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88 | # Finished will be send if the negotiation has ended (through agreement or deadline)
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89 | elif isinstance(info, Finished):
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90 | # terminate the agent MUST BE CALLED
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91 | self.terminate()
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92 | else:
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93 | self.getReporter().log(
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94 | logging.WARNING, "Ignoring unknown info " + str(info)
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95 | )
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96 |
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97 | # lets the geniusweb system know what settings this agent can handle
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98 | # leave it as it is for this competition
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99 | def getCapabilities(self) -> Capabilities:
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100 | return Capabilities(
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101 | set(["SAOP"]),
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102 | set(["geniusweb.profile.utilityspace.LinearAdditive"]),
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103 | )
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104 |
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105 | # terminates the agent and its connections
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106 | # leave it as it is for this competition
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107 | def terminate(self):
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108 | self.getReporter().log(logging.INFO, "party is terminating:")
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109 | super().terminate()
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110 | if self._profile is not None:
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111 | self._profile.close()
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112 | self._profile = None
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113 |
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114 | # give a description of your agent
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115 | def getDescription(self) -> str:
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116 | return "Group 14 Negotiation agent"
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117 |
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118 | # execute a turn
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119 | def _myTurn(self):
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120 | # check if the last received offer if the opponent is good enough
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121 | if self._isGood(self._last_received_bid):
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122 | # if so, accept the offer
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123 | action = Accept(self._me, self._last_received_bid)
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124 | else:
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125 | # if not, find a bid to propose as counter offer
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126 | bid = self._findBid()
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127 | action = Offer(self._me, bid)
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128 |
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129 | # send the action
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130 | return action
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131 |
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132 | # method that checks if we would agree with an offer.
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133 | # our agent accepts the offer only if utility received is higher than
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134 | # last utility calculated by _getNextUtility
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135 | def _isGood(self, bid: Bid) -> bool:
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136 | if bid is None:
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137 | return False
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138 | return self._profile.getProfile().getUtility(bid) >= self.last_my_utility
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139 |
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140 | # This calculates utility of the next bid agent should make
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141 | # e in range [1, inf] - exponential coefficient
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142 | # k in range [1, inf] - linear coefficient
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143 | def _getNextUtility(self, e, k):
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144 | util = 1 - self._progress.get(time.time() * 1000) ** e - 1/k * self._progress.get(time.time() * 1000)
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145 | return util
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146 |
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147 | def _findBid(self) -> Bid:
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148 | # Calculate next utility
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149 | # Optimal values are k=4 and e=10
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150 | utility = Decimal(self._getNextUtility(4, 10))
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151 | eps = Decimal(0.01)
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152 |
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153 | # Looks for bids in BidsUtilitySpace in interval(utility-eps, utility+eps)
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154 | # In case no bids found, extends interval
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155 | best_bid = None
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156 | while best_bid is None:
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157 | bids_interval = self._all_bids.getBids(Interval(min=utility - eps, max=utility + eps))
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158 |
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159 | # Finds the maximum utility bid for the opponent in interval
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160 | max_util = Decimal(0)
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161 | for bid in bids_interval:
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162 | # Making sure that bid was not proposed in last n turns
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163 | # Optimal parameter for n is 5
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164 | if bid not in self.last_bids[-5:]:
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165 | bid_util = self._opponent_model.getUtility(bid)
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166 | if bid_util >= max_util:
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167 | best_bid = bid
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168 | max_util = bid_util
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169 | eps = eps + Decimal(0.01)
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170 |
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171 | self.last_my_utility = utility
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172 | self.last_best_bid = best_bid
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173 | self.last_bids.append(best_bid)
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174 | return best_bid
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