Rachel Baker

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Successful bacterial circular chromosome segregation requires that any dimeric chromosomes, which arise by crossing over during homologous recombination, are converted to monomers. Resolution of dimers to monomers requires the action of the XerCD site-specific recombinase at dif in the chromosome replication terminus region. This reaction requires the DNA(More)
This paper describes LUCID, the London UCL Clear Speech in Interaction Database, which contains spontaneous and read speech in clear and casual speaking styles for 40 Southern British English speakers. The problem-solving task used to collect the spontaneous speech, the DiapixUK task, is also described, along with ways of using the task to elicit different(More)
We describe a method of synthesising contextually appropriate intonation with limited domain unit selection voices. The method enables the natural language generation component of a dialogue system to specify its intonation choices via APML, an XML-based markup language. In a pilot study, we built an APML-aware limited domain voice for use in flight(More)
We explore the role of redundancy, both in anticipation of and in response to listener confusion, in task-oriented dialogue. We find that direction-givers provide redundant utterances in response to both verbal and non-verbal signals of listener confusion. We also examine the effects of prior acquaintance and visibility upon redundancy. As expected, givers(More)
In this study, we compare the effects of English lexical features on word duration for native and non-native English speakers and for non-native speakers with different L1s and a range of L2 experience. We also examine whether non-native word durations lead to judgments of a stronger foreign accent. We measured word durations in English paragraphs read by(More)
The study investigated the perception of speech produced to counter the effects of adverse listening conditions. Participants completed a problem-solving task with an interlocutor in good listening conditions (NB) or with the interlocutor hearing them via a vocoder (VOC) or babble (BAB). Keywords extracted from recordings were presented in babble for(More)