Algunos bullets de confianza y privacidad en las redes sociales

- porque integra
- porque es abierta
- porque tiene que tener proof, trust y privacy builtin
- porque se la puede usar intercambiable entre sitios

De web social y web 2.0:
(helloworld)
- circulos de amigos y colegas
- esferas sociales
- estar en contacto con amistades viejas y nuevas
- los metodos de internet facilitan la interaccion
- compartir información personal

(comm of practice)
- foco en la comunidad
- evolucion de la web como plataforma
^^ - contenido y tagging
- redes de usuarios y contribucion
- network effect y arquitectura de contribucion

(--facebook and the)
- construir perfil, lista de otros usuarios, y recorrer amigos de amigos
- interacciones profundas por los links
- identity relationship y community
- network, social graph,
- asimetrica relacion

(attention and)
- people interact and interconect
- distracting web
- links, blogs

(the transformation of the web)
- community-driven producer consumer
- Web 1.0 y modelo antiguo de publicacion
- web que cambio, community driven
- emergencia, ecosistemas, ciudades y vecindarios
- emergencia de estructuras avanzadas y sinergia en el conocimiento y experiencia
- los sns que hacen por el usuario: permiten estar en contacto
- los diferentes tipos de red social
- reputaciones al preguntar friend of a friend
- utilidad de los recomendadores por amigos
- social bookmarking como comunidad
- wikipedia como comunidad

De privacidad:
(Towards privacy propagation in the social web)
- aumenta el uso del soft social y de web, y asi los problems de privacidad
- aceptar la privacidad o no pertenecer
- problemas de la social web: data partioning, privacy settings (privacy granularity, elicitation, communication) y management.
- si los controles se vuelven dificiles los usuarios los ignoran
- rich core contructs como requerimiento
- mostrar y aceptar selectivamente informacion a distintas personas (selective bootstrapping)

(Information Revelation and Privacy in Online Social Networks)
- alguna informacion la pueden ver extraños y otros amigos
- los contactos son listados como amigos mas alla de que la persona no confie o conozca al contacto
- la información esta dada a todos, sin distinguir la fuerza de los vínculos
- la tecnologia sirve para comunicarse con los weak ties
++ - motivos de porque la gente relega su privacidad
++ - privacy reality vs privacy expectations
- comportamientos que son particulares con respecto a la privacidad como poner el nombre verdadero o no
- stalking, indentity theft

(Building Privacy into the Semantic Web An Ontology Needed Now)
- damos pequeños bits de informacion personal pensando que no pasa nada, pero poniendo todo junto, puede ser un riesgo a la privacidad
- la semweb puede ser un problema para la privacidad personal
- To the delight of some and the dismay of others, privacy may soon become an explicitly negotiable commodity

(Facebook and the Social Dynamics of Privacy.pdf)
- malentendimiento de las politicas
?? - educacion al usuario
- socializacion vs privacidad: comodidad del usuario para usar los mecanismos de privacidad
- motivacion a usar FB y desestimar los mecanismos de privacidad
- mecanismo de privacidad de facebook: cualidades y resumen
- six patterns of privacy violation
- los factores sociales sabotean los controles técnicos
^^ - problema de tres personas envueltas

(Privacy and Social Network Sites Follow the Money.pdf)
- tipos de daño
- modelo de atacante: otro usuario, terceras partes o platform providers
- la motivacion de los atacantes es monetaria

(Privacy in E-Commerce Examining User Scenarios and Privacy Preferences.pdf)
- tipo de usuarios con respecto a la privacidad: privacy fundamentalist, pragmatist, marginally concerned.

(Student Awareness of the Privacy Implications When Using Facebook.pdf)
- razones para usar FB: peer pressure y para estar con los amigos
- tipos de amigos: Close Friends at University, close friends from highschool, friends that are not close friends, people you just know, gente que conociste una sola vez, personas que no conoces
- The reasons why people joined the Facebook community are important in examining the reasons people share certain types of information and expose themselves to certain privacy risks
- Facebook provides users a way to restrict and specify the types of users that can view different parts of their profile. They can control who can search for them, who can view their profile, who can see their contact information, and who can see various other profile details. The types of users they can choose from to view parts of their profile are users attending the same school, just friends, and friends of friends at the same school. Friends can always view everything. For profile searches, users can allow everyone, or some subset of people to search for them. They also have the option of blocking specific people. Because friends can always view an entire user’s profile, it is important to find out how people choose their friends on Facebook
- awareness did not increade privacy
- los usuarios estaban cómodos con el nivel de privacidad

(Social Circles Tackling Privacy in Social Networks.pdf)
- different profiles to different friends
- densely and closely connected: SC

(Social Network Sites and Virtual Communities)
^^ - LOS FB FEEDS!!!!


De Trust, Trust en la semweb, Algoritmos de trust, Trust y privacidad:
(1 Using Context- and Content-Based Trust Policies on the Semantic Web.pdf)

1º All trust architectures proposed for the Semantic Web so far fall into this category [1,2,3] (reputation trust mechanisms)
1º oh yeah button

(2 A Computational Model of Trust and Reputation.pdf)
2º la reputacion es un asunto humano
10º - A reputation is an expectation about an agent’s behavior based on information about or observations of its past behavior
2º Zacharia and Maes (1999) have suggested that reputation in an on-line community can be related to the ratings that an agent receives from others, and have pointed out several criteria for such rating systems
2º Abdul-Rahman, et al, (2000) have proposed that the trust concept can be divided into direct and recommender trust


(3 A Privacy-Enhanced Peer-to-Peer Reputation System.pdf)


(4 Trust Networks on the Semantic Web.pdf)


(5 Managing Trust in a Peer-2-Peer Information System.pdf)
5º- global y local trust

(6 Optimism and pessimism in trust.pdf)
6º- pagina 4: trust is a salient factor in many of our decisions [2, 7, 17].
6º- It is surprising, then, that the phenomenon is so little understood or investigated [8].

TRUST TRANSITIVA!!!!

(7 The EigenTrust Algorithm for Reputation Management in P2P Networks.pdf)
7º - There are three practical issues that are not addressed by this (EigenTrust) simple algorithm: a priori notions of trust, inactive peers, and malicious collectives
7º - complejidad del algoritmo
7º - simulation: network model, node model, content distribution model

(8 Formalising Trust as a computational concept.pdf)

8º - uso de valores pag 28: sensitividad, subjetividad, anomalias, linearity
8º - pag 32 Trust is undoubtedly an important feature of our everyday lives. Without a background of trust, it has been suggested, we would suffer from a loss of efficiency and dynamism
8º - The second reason is more straightforward— there are as many views of trust as there are because there are a great many types of trust (Shapiro, 1987; Deutsch, 1973). Put another way, trust can be classified as hope, despair, confidence, innocence, and impulsiveness,
8º - i trust you: cuanto y en que dominio?
8º - SUBJETVITY
8º - definicion pagina 38 Perhaps the most popular and widely accepted definition of trust is that of Deutsch
(1962), which states that
8º - diferente visión de los agentes
8º - The environment is so complex that we have to trust in certain things in order to reduce that complexity
8º - pagina 40 diferentes tipos de trust: Much of the literature available refers to the idea of trust being confidence in some
aspect or other of a relationship


1º A trust policy is a subjective procedure used for evaluating the trustworthiness of information in a specific situation
10º - pagina 2 definicion de trust
8º- trust es:
A means for understanding and adapting to the complexity of the environment
A useful judgement in the light of experience of the behaviour of others
8º - definicion muy buena de gambetta de trust en pagina 49
8º - pagina 47
1. expectation of the persistence and fulfillment of the natural and moral social orders.
2. expectation of “technically competent role performance” from those we interact with in social relationships and systems;
3. expectation that partners in interaction will “carry out their fiduciary obligations and responsibilities, that is, their duties in certain situations to place others’ interests before their own.”
10º - pagina 3 reputacion: When we need to work with a new, unknown person, we can ask people with whom we already have relationships for information about such person. We obtain information from these other sources by means of word of mouth i.e. a mechanism for propagating reputation. Based on the information we gather, we form an opinion about the reputation of the new person.


8º - pagina 53 trust as a commodity Trust is central to all transactions and yet economists rarely discuss the notion
8º - pagina 54: variable o absoluta trust, confiar o no confiar, threshold de trust,
8º - pagina 68: para el algoritmo de trust, se hace: We have separated trust into three different aspects: basic, general, and situational trust


(Context-Aware Semantic Association Ranking.pdf)
8º - Trust as despair, Trust as social conformity, Trust as innocence, Trust as impulsiveness, Trust as virtue, Trust as masochism, Trust as faith, Risk-taking or gambling, Trust as confidence.
8º - pagina 44 Luhmann’s main thesis is that trust is a means for reducing the complexity of society
10º - First, trust is a subjective property. Second, trust is affected by some actions that we cannot monitor. Third, trust
is context dependent. Fourth, the level of trust depends on how our actions are affected by the other agent’s action
10º - caracterizing trust: Trust is context dependent, Trust is subjective, Trust is directed, Trust is a measurable belief, Trust is conditionally transitive, Trust has a temporal dimension, Trust between collectives does not necessarily distribute to trust between their members, Trust is reflexive yet trust in oneself is measurable
8º - pagina 72:TIEMPO!!!!!, memoria, memory span, problemas con la memoria
8º - pagina 110 self reinforce en trust
10º- valores de la trust, marco de tiempo, direct trust and recommend trust
10º- inference of trust
8º - pagina 113 transitividad
8º - riesgo como factor en la trust
8º - pagina 52 estimacion de riesgo
8º - reciprocation
2º reciprocidad
3º - tipos de amenazas a un sistema de reputación
3º - requerimientos de seguridad
11º- universal wight, subject weight, path lenght weight, context weight, trust weight,
4º calculos sobre la red de confianza: Maximum and minimum capacity paths, Maximum and minimum length paths, Weighted average
9º - pagina 3 path algebra
9º - pagina 6 maximo y minimo de confianza
9º - mediciones contra malos usuarios pagina 11

(9 Trust Management for the Semantic Web.pdf)
(10 -- A Proposed Trust Model for the Semantic Web.pdf)