{"id":"https://openalex.org/W4415901356","doi":"https://doi.org/10.48550/arxiv.2508.15099","title":"Hydra: A Modular Architecture for Efficient Long-Context Reasoning","display_name":"Hydra: A Modular Architecture for Efficient Long-Context Reasoning","publication_year":2025,"publication_date":"2025-08-20","ids":{"openalex":"https://openalex.org/W4415901356","doi":"https://doi.org/10.48550/arxiv.2508.15099"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2508.15099","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2508.15099","pdf_url":"https://arxiv.org/pdf/2508.15099","source":{"id":"https://openalex.org/S4393918464","display_name":"ArXiv.org","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"type":"preprint","indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2508.15099","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5043757701","display_name":"Siddharth Chaudhary","orcid":"https://orcid.org/0000-0002-8959-8162"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Chaudhary, Siddharth","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101913433","display_name":"Dev Patel","orcid":"https://orcid.org/0000-0002-1839-0938"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Patel, Dev","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014470586","display_name":"Maheep Chaudhary","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chaudhary, Maheep","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5113507234","display_name":"B. Browning","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Browning, Bennett","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5043757701"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12127","display_name":"Software System Performance and Reliability","score":0.21770000457763672,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12127","display_name":"Software System Performance and Reliability","score":0.21770000457763672,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11986","display_name":"Scientific Computing and Data Management","score":0.10899999737739563,"subfield":{"id":"https://openalex.org/subfields/1802","display_name":"Information Systems and Management"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10028","display_name":"Topic Modeling","score":0.056699998676776886,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/modular-design","display_name":"Modular design","score":0.685699999332428},{"id":"https://openalex.org/keywords/chaining","display_name":"Chaining","score":0.5613999962806702},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.47609999775886536},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.4535999894142151},{"id":"https://openalex.org/keywords/architecture","display_name":"Architecture","score":0.4187999963760376},{"id":"https://openalex.org/keywords/flexibility","display_name":"Flexibility (engineering)","score":0.39489999413490295},{"id":"https://openalex.org/keywords/logical-conjunction","display_name":"Logical conjunction","score":0.3391000032424927},{"id":"https://openalex.org/keywords/product","display_name":"Product (mathematics)","score":0.3343000113964081}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7347000241279602},{"id":"https://openalex.org/C101468663","wikidata":"https://www.wikidata.org/wiki/Q1620158","display_name":"Modular design","level":2,"score":0.685699999332428},{"id":"https://openalex.org/C49020025","wikidata":"https://www.wikidata.org/wiki/Q1059099","display_name":"Chaining","level":2,"score":0.5613999962806702},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.47609999775886536},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.4535999894142151},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.42980000376701355},{"id":"https://openalex.org/C123657996","wikidata":"https://www.wikidata.org/wiki/Q12271","display_name":"Architecture","level":2,"score":0.4187999963760376},{"id":"https://openalex.org/C2780598303","wikidata":"https://www.wikidata.org/wiki/Q65921492","display_name":"Flexibility (engineering)","level":2,"score":0.39489999413490295},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.37770000100135803},{"id":"https://openalex.org/C21847791","wikidata":"https://www.wikidata.org/wiki/Q191081","display_name":"Logical conjunction","level":2,"score":0.3391000032424927},{"id":"https://openalex.org/C118524514","wikidata":"https://www.wikidata.org/wiki/Q173212","display_name":"Computer architecture","level":1,"score":0.335099995136261},{"id":"https://openalex.org/C90673727","wikidata":"https://www.wikidata.org/wiki/Q901718","display_name":"Product (mathematics)","level":2,"score":0.3343000113964081},{"id":"https://openalex.org/C152124472","wikidata":"https://www.wikidata.org/wiki/Q1204361","display_name":"Redundancy (engineering)","level":2,"score":0.3319999873638153},{"id":"https://openalex.org/C99821215","wikidata":"https://www.wikidata.org/wiki/Q1136583","display_name":"Swap (finance)","level":2,"score":0.32710000872612},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3199000060558319},{"id":"https://openalex.org/C2780980858","wikidata":"https://www.wikidata.org/wiki/Q110022","display_name":"Dual (grammatical number)","level":2,"score":0.31349998712539673},{"id":"https://openalex.org/C66322947","wikidata":"https://www.wikidata.org/wiki/Q11658","display_name":"Transformer","level":3,"score":0.3084999918937683},{"id":"https://openalex.org/C105339364","wikidata":"https://www.wikidata.org/wiki/Q2297740","display_name":"Software deployment","level":2,"score":0.30649998784065247},{"id":"https://openalex.org/C58581272","wikidata":"https://www.wikidata.org/wiki/Q12741163","display_name":"Workspace","level":3,"score":0.30480000376701355},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.2930000126361847},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.29280000925064087},{"id":"https://openalex.org/C195344581","wikidata":"https://www.wikidata.org/wiki/Q2555318","display_name":"Automated reasoning","level":2,"score":0.29120001196861267},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.2856999933719635},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.26750001311302185},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.25200000405311584}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2508.15099","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2508.15099","pdf_url":"https://arxiv.org/pdf/2508.15099","source":{"id":"https://openalex.org/S4393918464","display_name":"ArXiv.org","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2508.15099","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2508.15099","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"article"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2508.15099","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2508.15099","pdf_url":"https://arxiv.org/pdf/2508.15099","source":{"id":"https://openalex.org/S4393918464","display_name":"ArXiv.org","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"The":[0],"quadratic":[1],"complexity":[2],"of":[3],"transformers":[4],"fundamentally":[5],"limits":[6],"reasoning":[7,42],"system":[8],"deployment":[9],"in":[10],"resource-constrained":[11],"and":[12,37,44,58,80,89,93,120],"long-context":[13],"settings.":[14],"We":[15,48],"introduce":[16],"Hydra,":[17],"a":[18,23,41,50],"modular":[19],"architecture":[20],"based":[21],"upon":[22],"state-space":[24],"backbone":[25],"which":[26],"adaptively":[27],"routes":[28],"between":[29],"complementary":[30],"efficiency":[31],"mechanisms:":[32],"sparse":[33,110],"global":[34],"attention,":[35],"mixture-of-experts,":[36],"dual":[38],"memories":[39],"comprising":[40],"workspace":[43],"product":[45,121],"key":[46,122],"memory.":[47],"evaluate":[49],"29M":[51],"parameter":[52],"model":[53],"measuring":[54],"logical":[55,99],"chaining":[56],"accuracy":[57,95],"throughput":[59,64,82],"on":[60,65,97],"synthetic":[61,71,88],"sequences,":[62],"plus":[63],"WikiText.":[66],"Ablation":[67],"studies":[68],"use":[69],"component-specific":[70],"datasets":[72],"to":[73,102,117],"isolate":[74],"individual":[75],"mechanisms.":[76],"Hydra":[77],"achieves":[78],"$3.01\\times$":[79],"$3.0\\times$":[81],"gains":[83],"at":[84],"8K":[85],"tokens":[86],"for":[87],"WikiText":[90],"datasets,":[91],"respectively,":[92],"$10\\times$":[94],"improvements":[96],"multi-step":[98],"composition":[100],"compared":[101],"equal-sized":[103],"transformers.":[104],"Ablations":[105],"confirm":[106],"each":[107],"component's":[108],"contribution:":[109],"attention":[111],"captures":[112],"long-range":[113],"dependencies,":[114],"experts":[115],"specialize":[116],"input":[118],"domains,":[119],"memory":[123],"enables":[124],"selective":[125],"retrieval.":[126]},"counts_by_year":[],"updated_date":"2026-05-07T13:39:58.223016","created_date":"2025-10-10T00:00:00"}