Koninklijke Philips Corporation N.v.

Gn Hearing A/s

Tanya Ignatenko

Muhammad Asim

Kirill Kondrashov

Milan Petkovic

Aalbert De Vries

A method for updating a user model and fitting agent for a hearing device system is disclosed, the hearing device system comprising a hearing device worn by a hearing device user, wherein the fitting agent comprises one or more processors configured to initialize a user model comprising a plurality of user preference functions and associated user response distributions, wherein each user preference function is associated with an environment; obtain environment data indicative of a present environment; obtain a test setting comprising a primary test setting and a secondary test setting for the hearing device; present the test setting to the hearing device user; obtain a user input of a preferred test setting indicative of a preference for either the primary test setting or the secondary test setting; and update the user model based on hearing device parameters of the preferred test setting and the environment data.

Fitting agent for a hearing device and method for updating a multi-environment user model

A fitting agent for a hearing device and related method is disclosed, wherein the fitting agent is configured to initialize a user model comprising a user preference function; obtain a primary test setting for the hearing device; obtain a secondary test setting for the hearing device; present the primary test setting and the secondary test setting to a user; detect a user input of a preferred test setting indicative of a preference for either the primary test setting or the secondary test setting; and update the user model based on hearing device parameters of the preferred test setting, wherein to obtain the secondary test setting comprises: obtain a candidate set of candidate test settings; determine an uncertainty parameter for each candidate test setting; and select the secondary test setting from the candidate set of candidate test settings based on the uncertainty parameters of the candidate test settings.

Fitting agent and method of determining hearing device parameters

A domain authorityfor use in a hierarchy of domain authorities in a hierarchical cryptographic system. The domain authoritycomprises a user secret key generatorfor generating a user secret key based on a domain secret key and one or more attribute representations, to obtain a user secret key associated with a set of attributes corresponding to the attribute representations, and wherein the domain secret key is based on a domain secret key of a parent domain authority or a root secret key of a root authority of the hierarchy of domain authorities, and wherein the attribute representations are independent of the hierarchy. A decrypter makes use of the user secret key. An encrypter generates ciphertext decryptable by the decrypter.

Hierarchical attribute-based encryption and decryption

A system for attribute-based encryption comprises a first encrypter () and a second encrypter (). The first encrypter () comprises an input unit () for determining a message and a policy over a set of attributes, wherein the policy comprises a plurality of components, and a first cryptographic unit () for generating an encrypted representation of the message and an encrypted representation of the plurality of components. The second encrypter () comprises a receiving unit () for receiving the encrypted representation of the message and the encrypted representation of the plurality of components, and a second cryptographic unit () for transforming the encrypted representation of the message and the encrypted representation of the plurality of components into an attribute-based encrypted message associated with the policy.

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Eindhoven, Netherlands

Tanya Ignatenko