1 | import logging
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2 | import time
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3 | from typing import cast
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4 |
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5 | from geniusweb.actions.Accept import Accept
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6 | from geniusweb.actions.Action import Action
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7 | from geniusweb.actions.Offer import Offer
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8 | from geniusweb.bidspace.AllBidsList import AllBidsList
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9 | from geniusweb.inform.ActionDone import ActionDone
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10 | from geniusweb.inform.Finished import Finished
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11 | from geniusweb.inform.Inform import Inform
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12 | from geniusweb.inform.Settings import Settings
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13 | from geniusweb.inform.YourTurn import YourTurn
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14 | from geniusweb.issuevalue.Bid import Bid
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15 | from geniusweb.party.Capabilities import Capabilities
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16 | from geniusweb.party.DefaultParty import DefaultParty
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17 | from geniusweb.profileconnection.ProfileConnectionFactory import (
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18 | ProfileConnectionFactory,
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19 | )
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20 | from geniusweb.progress.ProgressRounds import ProgressRounds
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21 | from tudelft_utilities_logging.Reporter import Reporter
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22 |
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23 |
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24 | class Agent27(DefaultParty):
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25 | """
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26 | Agent that offers bids based on opponent modelling until an agreement is reached.
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27 | """
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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._profile = None
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33 | self._last_received_bid: Bid = None
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34 | self.latest_bid: Bid = None
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35 | self.all_bids = []
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36 | self.opponent_preferences = []
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37 | self.opponent_value_count = {}
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38 | self.all_good_bids = []
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39 | self.all_previously_offered_bids = []
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40 | self.not_important_issues = []
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41 | self.middle_issues = []
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42 | self.all_available_bids_sorted = []
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43 |
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44 | def notifyChange(self, info: Inform):
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45 | """This is the entry point of all interaction with your agent after is has been initialised.
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46 |
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47 | Args:
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48 | info (Inform): Contains either a request for action or information.
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49 | """
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50 |
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51 | # a Settings message is the first message that will be send to your
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52 | # agent containing all the information about the negotiation session.
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53 | if isinstance(info, Settings):
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54 | self._settings: Settings = cast(Settings, info)
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55 | self._me = self._settings.getID()
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56 |
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57 | # progress towards the deadline has to be tracked manually through the use of the Progress object
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58 | self._progress: ProgressRounds = self._settings.getProgress()
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59 |
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60 | # the profile contains the preferences of the agent over the domain
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61 | self._profile = ProfileConnectionFactory.create(
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62 | info.getProfile().getURI(), self.getReporter()
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63 | )
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64 | # ActionDone is an action send by an opponent (an offer or an accept)
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65 | elif isinstance(info, ActionDone):
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66 | action: Action = cast(ActionDone, info).getAction()
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67 |
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68 | # if it is an offer, set the last received bid
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69 | if isinstance(action, Offer):
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70 | self._last_received_bid = cast(Offer, action).getBid()
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71 | # YourTurn notifies you that it is your turn to act
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72 | elif isinstance(info, YourTurn):
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73 | action = self._myTurn()
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74 | if isinstance(self._progress, ProgressRounds):
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75 | self._progress = self._progress.advance()
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76 | self.getConnection().send(action)
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77 |
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78 | # Finished will be send if the negotiation has ended (through agreement or deadline)
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79 | elif isinstance(info, Finished):
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80 | # terminate the agent MUST BE CALLED
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81 | self.terminate()
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82 | else:
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83 | self.getReporter().log(
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84 | logging.WARNING, "Ignoring unknown info " + str(info)
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85 | )
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86 |
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87 | # lets the geniusweb system know what settings this agent can handle
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88 | # leave it as it is for this competition
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89 | def getCapabilities(self) -> Capabilities:
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90 | return Capabilities(
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91 | set(["SAOP"]),
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92 | set(["geniusweb.profile.utilityspace.LinearAdditive"]),
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93 | )
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94 |
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95 | # terminates the agent and its connections
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96 | # leave it as it is for this competition
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97 | def terminate(self):
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98 | self.getReporter().log(logging.INFO, "party is terminating:")
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99 | super().terminate()
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100 | if self._profile is not None:
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101 | self._profile.close()
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102 | self._profile = None
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103 |
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104 |
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105 |
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106 | # give a description of your agent
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107 | def getDescription(self) -> str:
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108 | return "Group 27 agent for Collaborative AI course"
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109 |
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110 | # Initial setup
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111 | def init(self):
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112 | profile = self._profile.getProfile()
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113 | """ Determine which the not important issues are and save them """
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114 | self.get_not_important_issues()
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115 |
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116 | """
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117 | Initialize dictionary where we store the count of each value for each issue in opponent's bids
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118 | Used for opponent modelling
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119 | """
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120 | issues = profile.getDomain().getIssues()
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121 | for issue in issues:
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122 | self.opponent_value_count[issue] = {}
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123 | for value in profile.getDomain().getValues(issue):
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124 | self.opponent_value_count[issue][value] = 0
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125 | """ Save a list of all bids in the domain ordered by utility """
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126 | self.order_bids()
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127 |
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128 | """
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129 | Every time we receive a bid, add 1 to the counter for that value
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130 | Used for opponent modelling
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131 | """
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132 |
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133 | def update_opponent_counts(self):
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134 | lrb = self._last_received_bid
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135 | for issue in lrb.getIssues():
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136 | self.opponent_value_count[issue][lrb.getValue(issue)] += 1
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137 |
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138 | # execute a turn
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139 | def _myTurn(self):
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140 | profile = self._profile.getProfile()
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141 |
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142 | # Initial setup
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143 | if not self.opponent_value_count:
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144 | self.init()
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145 |
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146 | if self._last_received_bid is not None:
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147 | """ We update the count for each value for each issue of our opponent """
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148 | self.update_opponent_counts()
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149 | """ We update the list of all issues sent by our opponent """
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150 | self.all_bids.append((self._last_received_bid, profile.getUtility(self._last_received_bid)))
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151 |
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152 | if self._isGood(self._last_received_bid):
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153 | """ if so, accept the offer """
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154 | action = Accept(self._me, self._last_received_bid)
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155 | else:
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156 | """ if not, find a bid to propose as counter offer """
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157 | bid = self._findBid()
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158 | action = Offer(self._me, bid)
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159 | self.latest_bid = bid
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160 |
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161 | """ send the action """
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162 | return action
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163 |
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164 | """
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165 | Method that decides whether an offer is good or not
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166 |
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167 | Parameters
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168 | ----------
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169 | bid: the offer that is received/ to be send
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170 | """
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171 |
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172 | def _isGood(self, bid: Bid) -> bool:
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173 | if bid is None:
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174 | return False
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175 |
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176 | progress = self._progress.get(time.time() * 1000)
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177 | profile = self._profile.getProfile()
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178 |
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179 | if progress < 0.85:
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180 | if float(profile.getUtility(bid)) > 1 - progress / 4.5:
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181 | return True
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182 | elif progress < 0.95:
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183 | if float(profile.getUtility(bid)) > 1 - progress / 2.8:
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184 | return True
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185 | elif progress < 0.99:
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186 | if float(profile.getUtility(bid)) > 1 - progress / 1.8:
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187 | return True
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188 | else:
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189 | return True
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190 |
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191 | return False
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192 |
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193 | def _findBid(self) -> Bid:
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194 |
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195 | bid_offer = self.get_suitable_bid()[0][0]
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196 | if bid_offer is not None:
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197 | self.all_previously_offered_bids.append(bid_offer)
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198 | if bid_offer is None:
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199 | """ When we have not offered a bid, offer highest preference """
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200 | if len(self.all_previously_offered_bids) == 0:
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201 | bid = self.get_highest_bid()
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202 | else:
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203 | """ since no new good offers are available, start offering what we have already offered before
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204 | (starting from the best available offers) """
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205 | bid = self.all_previously_offered_bids.pop(0)
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206 | self.all_previously_offered_bids.append(bid)
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207 | else:
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208 | bid = bid_offer
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209 | # print("Bid utility------------", self._profile.getProfile().getUtility(bid))
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210 |
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211 | return bid
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212 |
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213 | """
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214 | Selects a favorable bid for the opponent based on issues that are not important to us,
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215 | but we consider them to be important fo the opponent.
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216 | """
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217 |
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218 | def get_suitable_bid(self):
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219 | all_bids = self.all_available_bids_sorted
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220 |
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221 | opponent_desired_bid = self.get_opponent_info_good()
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222 | not_important_issues = self.not_important_issues
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223 |
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224 | chosen_bid = None
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225 | chosen_bid_utility = None
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226 |
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227 | for bid, bid_utility in all_bids:
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228 | counter = 0
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229 | if bid not in self.all_previously_offered_bids:
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230 | if opponent_desired_bid is not None:
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231 | for not_important_issue in not_important_issues:
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232 | if bid.getIssueValues().get(not_important_issue) == opponent_desired_bid.get(
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233 | not_important_issue):
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234 | counter += 1
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235 |
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236 | if (opponent_desired_bid is not None or counter == len(not_important_issues)) and self._isGood(bid):
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237 | chosen_bid = bid
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238 | chosen_bid_utility = bid_utility
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239 | break
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240 |
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241 | return [(chosen_bid, chosen_bid_utility)]
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242 |
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243 | """
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244 | Sorts all available bids on utility.
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245 | """
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246 | def order_bids(self):
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247 | domain = self._profile.getProfile().getDomain()
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248 | all_bids = AllBidsList(domain)
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249 |
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250 | bids_with_utility = []
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251 |
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252 | for bid in all_bids:
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253 | bids_with_utility.append((bid, self._profile.getProfile().getUtility(bid)))
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254 |
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255 | bids_with_utility = sorted(bids_with_utility, key=lambda item: -item[1])
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256 | self.all_available_bids_sorted = bids_with_utility
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257 |
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258 | """
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259 | Sorts all bids and selects the one with highest utility.
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260 | """
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261 | def get_highest_bid(self):
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262 | domain = self._profile.getProfile().getDomain()
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263 | all_bids = AllBidsList(domain)
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264 |
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265 | bids_with_utility = []
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266 |
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267 | for bid in all_bids:
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268 | bids_with_utility.append((bid, self._profile.getProfile().getUtility(bid)))
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269 |
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270 | bids_with_utility = sorted(bids_with_utility, key=lambda item: -item[1])
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271 | return bids_with_utility[0][0]
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272 |
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273 | """
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274 | Returns a dictionary where the keys are the issues
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275 | and the values are the most often occurring value for this issue
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276 | """
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277 | def get_opponent_info_good(self):
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278 | """ If we have too few of our opponent's bids, return nothing """
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279 | if len(self.all_bids) < 2:
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280 | return None
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281 |
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282 | issues = self._profile.getProfile().getDomain().getIssues()
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283 |
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284 | opponent_counts = self.opponent_value_count
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285 | demanded_best_offer = {}
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286 |
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287 | """ For each issue, sort by the number of occurrences of each value and take the highest """
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288 | for issue in issues:
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289 | opponent_values = opponent_counts[issue]
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290 | sorted_dict = dict(sorted(opponent_values.items(), key=lambda item: item[1]))
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291 | opponent_val = list(sorted_dict.keys())[-1]
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292 | demanded_best_offer[issue] = opponent_val
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293 |
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294 | return demanded_best_offer
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295 |
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296 | """
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297 | Returns two arrays containing issues that are not important and issues that are somewhat
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298 | important respectively.
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299 | """
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300 |
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301 | def get_not_important_issues(self):
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302 | domain = self._profile.getProfile().getDomain()
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303 | issues = domain.getIssues()
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304 | weights = []
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305 | not_important_issues = []
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306 | middle_issues = []
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307 |
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308 | for issue in issues:
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309 | """ Weight by issue """
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310 | weights.append(self._profile.getProfile().getWeight(issue))
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311 |
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312 | for issue in issues:
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313 | w = self._profile.getProfile().getWeight(issue)
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314 | if w < 0.15 * float(max(weights)):
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315 | not_important_issues.append(issue)
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316 | elif w < 0.5 * float(max(weights)):
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317 | middle_issues.append(issue)
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318 | self.not_important_issues = not_important_issues
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319 | self.middle_issues = middle_issues
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320 | return not_important_issues, middle_issues
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