seller price negotiations. The task of the buyer is to
negotiate for a reasonable price (arguably making it
task-oriented), but achieving it requires social influ-
ence skills of engaging in trade-offs and building a
rapport with the seller so as to reach an agreement.
Measures of Success
: The above discussion indi-
cates that a comprehensive evaluation of social in-
fluence systems must draw from both task-oriented
and open-domain dialogue research. Since there
exist surveys that discuss the evaluation in these set-
tings (Deriu et al.,2021;Li et al.,2021), we don’t
cover them here in detail. However, we define
three essential axes for evaluation: 1) Linguistic
Performance, or the system’s linguistic sophistica-
tion based on automatic (e.g. perplexity, BLEU)
and human (e.g. fluency, consistency, coherency)
evaluation. 2) Influence Outcome, or the ability to
influence defined by objective goals like the nego-
tiated price or weight loss after therapy. 3) Partner
Perception, or the subjective evaluation of the user,
for instance, the user’s satisfaction, likeness to-
wards the system, and interest in interacting again.
In a buyer-seller negotiation, if the seller hates the
buyer in the end, no matter how favorable the deal
is for the buyer, one might argue that this is still a
failed negotiation for the buyer. Hence, we encour-
age future work to take all three dimensions into
account collectively.
3 Social Influence Across Diverse
Application Areas
We now illustrate social influence across numer-
ous domains and application areas. In total, we
curated
22
datasets from prior work that capture
social influence in various forms, spanning
12
pub-
lication venues,
4
languages, and
7
application do-
mains (see Appendix Afor details on the compi-
lation process). In general, the datasets capture
the following information about an interaction: the
non-conversational context for the participants (e.g.
negotiation preferences or other role-specific infor-
mation), the conversation between them, and out-
come assessment. Optionally, some datasets also
gather participant demographics and personality
traits, utterance-level annotations, and subjective
evaluations via post-surveys.
To understand the structural similarities and dif-
ferences between these datasets, we design a tax-
onomy with two primary dimensions:
Task Struc-
ture
(Symmetric vs Asymmetric), and
Context Def-
inition
(Global vs Local).
Task Structure
cap-
tures whether the participant roles are defined in a
symmetric or an asymmetric manner. For instance,
a typical multi-issue negotiation is symmetric, in
the sense that both parties have their own prefer-
ences and goals based on which they actively try
to reach a favorable agreement (Lewis et al.,2017).
On the other hand, a counseling session between
a therapist and a patient is asymmetric, where the
therapist attempts to emotionally support the pa-
tient by employing social influence skills (Althoff
et al.,2016).
Context Definition
relates to whether
the input context before each interaction is defined
globally or locally. For instance, the Persuasion-
ForGood dataset globally defines the context of
persuasion for charity donation, which is kept the
same throughout (Wang et al.,2019). On the con-
trary, in a typical debate, although the rules are
defined globally, the conversation topic and argu-
ments are local and can vary for each conversa-
tion (Durmus and Cardie,2019). We present this
categorization in Table 1. We further categorize the
datasets according to their
Domain
,
Source
, and
the
# of parties
. We provide key statistics and the
available metadata in Appendix B. We now briefly
discuss the datasets in each domain.
Games
: Strategy games involve social influence
dynamics of trust and deception. Diplomacy cap-
tures deception in long-lasting relationships, where
players forge and break alliances to dominate Eu-
rope (Peskov et al.,2020). Catan revolves around
the trade of resources for acquiring roads, settle-
ments, and cities (Asher et al.,2016;Boritchev and
Amblard,2021). The players have access to only
a subset of resources that they would need, which
encourages strategic influence and trade.
Multi-Issue Bargaining Tasks (MIBT)
: MIBT is
a tractable closed-domain abstraction of a typical
negotiation (Fershtman,1990). It is based on a
fixed set of issues each with a predefined priority
for each player, which essentially governs the goals
of the players. If the priorities of the players align,
this leads to competitive negotiations, where each
party attempts to convince their partner with trade-
offs and persuasive arguments. If they don’t, this al-
lows cooperative interactions where the negotiators
try to find optimal divisions that benefit everyone.
DealOrNoDeal (Lewis et al.,2017) involves nego-
tiations over three issues: books,balls, and hats.
Other datasets define a more grounded scenario,
such as symmetric CaSiNo (Chawla et al.,2021b)
negotiations between two campsite neighbors and