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Showing 1 to 20 of 2165 for “"retrieval"”.
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Enhancing Retrieval Augmented Generation Through Robust Information Retrieval
Retrieval-Augmented Generation (RAG) is a popular technique for grounding the responses of Large Language Models (LLMs). RAG works by extending Information Retrieval (IR) to incorporate LLMs that generate responses based on retrieved information and a query. RAG is commonly used within the field of …
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Social impact retrieval: measuring author influence on information retrieval
… of the ACM SIGIR conference on information retrieval between 1997-2007. We use the citation context of SIGIR publications as a proxy for annotations, constructing large social networks between authors. Against these networks we show the effectiveness of incorporating user generated content, …
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Document Retrieval Systems
Made available in DSpace on 2014-12-10T19:07:00Z (GMT). No. of bitstreams: 1 7219876.pdf: 2833095 bytes, checksum: 02a11e17855bc93b1f31589df89c80f6 (MD5) Previous issue date: 1972
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Compressive phase retrieval
… framework of compressed sensing. In each phase retrieval technique under study, diffraction during spatial propagation is exploited as an effective and convenient mechanism to uniformly distribute the information about the unknown signal into the measurement space. Holography is useful to record …
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Fast Phase Retrieval: A Robust and Efficient Multidimensional Phase Retrieval Algorithm
We present the first phase retrieval algorithm with a set of deterministic recovery guarantees. We show that for a class of objects known as "Schwarz Objects", the algorithm is guaranteed to reconstruct the object given only the magnitudes of its discrete Fourier transform. We present numerical …
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Ontology driven information retrieval.
Ontology-driven information retrieval deals with the use of entities specified in domain ontologies to enhance search and browse. The entities or concepts of lightweight ontological resources are traditionally used to index resources in specialised domains. Indexing with concepts is often achieved …
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Efficient Private Information Retrieval
… information about her. Private Information Retrieval (PIR) algorithms can be leveraged for providing perfect privacy to users' queries, though at a restrictive computational cost. In this work, we consider today's highly distributed computing environments, as well as certain secure-hardware …
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Lexical retrieval in spelling
… pattern is assumed to reflect a deficit in the retrieval of stored orthographic representations. It is suggested that the order of output of letters may be encoded by an ordering of activation values. The nature of the deficit in terms of distinctions between input and output and access and …
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Efficient retrieval-augmented generation
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Landmarks for clothing retrieval
Clothing Retrieval is a task that is increasingly becoming popular with the rise of online shopping and social media’s popularity. We propose to solve the clothing retrieval problem using landmarks based on the clothing type and features surrounding the landmarks to get a more ingrained view of the …
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Distributional Private Information Retrieval
A private-information-retrieval (PIR) scheme lets a client fetch a record from a remote database without revealing which record it has fetched. Classic PIR schemes treat all database records the same but, in practice, some database records are much more popular (i.e., commonly fetched) than others. …
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Multiple Asteroid Retrieval Mission
In this thesis, the possibility of enabling space-mining for the upcoming decade is explored. Making use of recently-proven reusable rockets, we envision a fleet of spacecraft capable of reaching Near-Earth asteroids. To analyze this idea, the goal of this problem is to maximize the asteroid mass …
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Toward higher effectiveness for recall-oriented information retrieval: A patent retrieval case study
Research in information retrieval (IR) has largely been directed towards tasks requiring high precision. Recently, other IR applications which can be described as recall-oriented IR tasks have received increased attention in the IR research domain. Prominent among these IR applications are patent …
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Information retrieval as card playing: a formal model for optimizing interactive retrieval interface
… model for optimizing interactive information retrieval interfaces. To model interactive retrieval in a general way, we frame the task of an interactive retrieval system as to choose a sequence of interface cards to present to the user. At each interaction lap, the system's goal is to choose an …
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Character recognition and information retrieval
… character recognition and information retrieval, that are used for text processing. Character recognition translates text image data to a computer-coded format; information retrieval stores these data and provides efficient access to the text. The necessity of their eventual coupling is …
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Information Retrieval from Neurophysiological Signals
… towards user-centric music/movie content retrieval by exploiting brain signals. Secondly, we addressed one of the main issue of the applications of brain decoding algorithms. Generally, the performance of such algorithms suffers from the constraint of having few and noisy samples, which is …
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Deduction-Based Software Component Retrieval
Deduction-based software component retrieval is a software reuse technique that uses formal specifications as component descriptors and as search keys; matching components are identified using an automated theorem prover. This dissertation contains a detailed theoretical investigation of the …
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Suffix Trees for Document Retrieval
… of Suffix Trees for full text indexing and retrieval. Typically suffix trees are built on a character level, where the tree records which characters follow each other character. By building suffix trees for documents based on words instead of characters, the resulting tree effectively …
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