The search for smart contract source codes has drawn research attention to fulfill developers’and researchers’needs.Yet,the existing studies are not mature enough to address smart contracts’technical properties and...The search for smart contract source codes has drawn research attention to fulfill developers’and researchers’needs.Yet,the existing studies are not mature enough to address smart contracts’technical properties and functionalities.This paper proposes a system to improve the naive search for smart contract codes;for example,Etherscan has one keyword search feature without regard to the contract structure.We consider clustering smart contracts based on developers’preferences,which increases the probability that the resulting source codes match developers’needs.Our experimental results show a significant improvement in the complexity of the retrieved source codes of smart contracts compared with the baseline scenario using blockchain search engines(e.g.,Etherscan).Our solution reduces the number of retrieved smart contract codes the developer has to check if the codes match her/his needs by 94%,88%,82%,or 98%,depending on the user’s search preferences.展开更多
The ability of Voice User Interface(VUI)to understand how users will express their commands naturally and intuitively is an essential component of user experience,especially when the user is interacting with the VUI f...The ability of Voice User Interface(VUI)to understand how users will express their commands naturally and intuitively is an essential component of user experience,especially when the user is interacting with the VUI for the first time.Designing an automated method for testing the usability of VUI is a challenge for two reasons.First,there are many different ways for a user to express the same intention,e.g.“play some music”,“put some music on”,etc.,that is difficult to determine in advance.Second,many VUI apps today typically rely on the platform service provider(e.g.Amazon,Google,etc.)to perform many of the speech recognition and natural language processing tasks,and these services are provided as a blackbox.Consequently,it is difficult for the app developer to obtain information about errors and user feedback.In this paper,we propose a framework,VORI,to systematically evaluate the interactability of VUI,as well as a new metric for quantifying the interactability of a VUI.We use VORI to analyze 127 applications on Alexa by sending over 82,931 commands.Our analysis results highlight that 41.7%of apps only accept strict input that has to exactly match the developer’s predefined sample commands with an interactability score of 20%or less.This suggests developers should consider a better interactability strategy in the design of VUIs,and more research is needed to further explore the design space to improve the interactability.展开更多
文摘The search for smart contract source codes has drawn research attention to fulfill developers’and researchers’needs.Yet,the existing studies are not mature enough to address smart contracts’technical properties and functionalities.This paper proposes a system to improve the naive search for smart contract codes;for example,Etherscan has one keyword search feature without regard to the contract structure.We consider clustering smart contracts based on developers’preferences,which increases the probability that the resulting source codes match developers’needs.Our experimental results show a significant improvement in the complexity of the retrieved source codes of smart contracts compared with the baseline scenario using blockchain search engines(e.g.,Etherscan).Our solution reduces the number of retrieved smart contract codes the developer has to check if the codes match her/his needs by 94%,88%,82%,or 98%,depending on the user’s search preferences.
文摘The ability of Voice User Interface(VUI)to understand how users will express their commands naturally and intuitively is an essential component of user experience,especially when the user is interacting with the VUI for the first time.Designing an automated method for testing the usability of VUI is a challenge for two reasons.First,there are many different ways for a user to express the same intention,e.g.“play some music”,“put some music on”,etc.,that is difficult to determine in advance.Second,many VUI apps today typically rely on the platform service provider(e.g.Amazon,Google,etc.)to perform many of the speech recognition and natural language processing tasks,and these services are provided as a blackbox.Consequently,it is difficult for the app developer to obtain information about errors and user feedback.In this paper,we propose a framework,VORI,to systematically evaluate the interactability of VUI,as well as a new metric for quantifying the interactability of a VUI.We use VORI to analyze 127 applications on Alexa by sending over 82,931 commands.Our analysis results highlight that 41.7%of apps only accept strict input that has to exactly match the developer’s predefined sample commands with an interactability score of 20%or less.This suggests developers should consider a better interactability strategy in the design of VUIs,and more research is needed to further explore the design space to improve the interactability.
