Temporal Knowledge Graphで作る！ 時間変化するナレッジを扱うAI Agentの世界

Transcript

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   ΰϦΰϦਐΊ͍ͯΔ https://layerx.co.jp/news/20250401/ 1
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   (SBQI͕஫໨͞Ε͖͔ͯͨ 4 * ίϯςΩετ/ϝϞϦͱͯ͠ɺෳࡶͳ஌ࣝମܥ ΛදݱͰ͖Δʂʂ(ෳ਺ͷ֓೦ؒͷෳࡶͳؔ܎ ੑ΍ਂ͍จ຺ཧղΛඞཁͱ͢ΔλεΫ) * LLMͷొ৔ͰKnowledge Graph͕ߏங͠΍͘͢ ͳͬͨʂʂ * ྫ͑͹ɺGraphRAGͷ࿦จͰ͸ɺLLMϕʔε ͷΤϯςΟςΟɺϦϨʔγϣϯͷநग़Λߦ ͍ͬͯ·͢ɻ https://arxiv.org/abs/2404.16130 )JSPNV
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7. (SBQI3"(ͷऑ఺ 5 GraphRAG͸ࣄ࣮͕࣌ؒͱͱ΋ʹมԽ͠ͳ͍੩తͳKnowledge Graphʹয఺Λ౰͓ͯͯΓɺ࣌ؒมԽʹ൐͏ಈతͳਐԽΛແࢹ ͍ͯ͠Δɻɻɻ )JSPNV
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   (SBQIʂʂ 6 Temporal Knowledge Graph(TKG)͸࣌ؒೝࣝܕͰಈతͳมߋ ʹڧ͍Knowledge GraphͰ͢ɻ ձ࿩σʔλͷதͰग़ݱ͢ΔϢʔβʔͷ৽͍͠ᅂ޷͸΋ͪΖΜɺ ࣌ؒܦաͰ௥Ճ͞ΕΔ೥ܾ࣍ࢉॻ΍ࣾ಺ϧʔϧͳͲɺ࣌ؒܦա ͰมԽ͢ΔφϨοδΛѻ͏͜ͱ͕Ͱ͖·͢ɻ Ϣʔβʔͱͷ΍ΓऔΓͰAI Agentͷߦಈ͕ஞ࣍తʹվળ͞Εͯ ͍͘αΠΫϧΛճ͢͜ͱ͕Ͱ͖·͢ɻ )JSPNV
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9. Graphiti(1) * Graphiti͸TKGͷҰछͰ͋ΓɺͦΕΛϝϞϦϓ ϥοτϑΥʔϜͱͯ͠ѻ͏Zep͕͋Γ·͢ * Graphiti͸OSSɺZep͸Zep Cloudͱͯ͠༗ঈར ༻ * Zep(Graphiti)͸Preston RasmussenΒͷ࿦จͰ ঺հ͞Ε͍ͯ·͢ɻ )JSPNV
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     8 * LLMGraphiti͸3ஈ૚ͷαϒάϥϑͰߏ੒͞Ε·͢ɻ * Τϐιʔυαϒάϥϑ: ੜͷೖྗσʔλ(ϝοηʔδͳͲ)Λଛࣦͳ͠Ͱอଘ͠ɺ࣌ؒతͳॱং Λҡ࣋͢ΔɻηϚϯςΟοΫΤϯςΟςΟ΍ؔ܎ੑΛநग़͢Δࡍͷج൫ͱͳΔɻ * ηϚϯςΟοΫΤϯςΟςΟαϒάϥϑ: Τϐιʔυαϒάϥϑ͔Βநग़͞ΕͨΤϯςΟς Οʢਓɺ෺ɺ৔ॴɺ֓೦ͳͲʣͱɺͦΕΒͷؒͷؔ܎ੑΛߏ଄Խ͞ΕͨܗͰදݱ͢Δɻ * ίϛϡχςΟαϒάϥϑ: ηϚϯςΟοΫΤϯςΟςΟͷΫϥελʔʢίϛϡχςΟʣΛܗ੒ ͠ɺ͜ΕΒͷΫϥελʔͷߴϨϕϧͳཁ໿Λఏڙ͢Δɻ )JSPNV
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     9 * ݕࡧ͸࣍ͷࡾͭΛ࣮ߦͯ͠ϦϥϯΫ * 1. ϕΫτϧݕࡧ(Cosine Similarity) * ΫΤϦςΩετ͕ຒΊࠐΈϕΫτϧʹม׵͞ΕɺίαΠϯྨࣅ౓Ͱݕࡧ͞Ε·͢ɻ * 2. จࣈྻݕࡧ(BM25/Fulltext) * ಉ͡ΫΤϦςΩετ͕BM25ΞϧΰϦζϜΛ࢖ͬͨϑϧςΩετݕࡧʹ΋࢖ΘΕ·͢ * 3. άϥϑݕࡧ(BFS) * BFS(෯༏ઌ୳ࡧ)ͰάϥϑΛτϥόʔαϧ͠·͢ɻॳճͷϕΫτϧݕࡧɾจࣈྻݕࡧͷ݁Ռ͔Βى ఺ϊʔυΛऔಘ͠ɺ͔ͦ͜Βؔ࿈͢ΔΤοδ΍ϊʔυΛ୳ࡧ͠·͢ɻ * ݕࡧ݁Ռʹରͯ͠Reciprocal Rank Fusion (RRF) ΍ Maximal Marginal Relevance (MMR) ͳͲͷطଘͷϦ ϥϯΩϯάΞϓϩʔνΛαϙʔτ͍ͯ͠·͢ɻ )JSPNV
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13. 12 5,(Λ࢖͏1P$σϞ ਓؒʹΑΔࠩ͠໭͠ίϝϯτ͔Β ֶश͠ਃ੥ΛϨϏϡʔ͢ΔAI Agentػೳ
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15. ೉͔ͬͨ͠ͱ͜Ζɺ·ͩ೉͍͠ͱ͜Ζ 14 * ΍͸ΓKnowledge Graphߏங෦෼ɻ * νϟϯΫԽɻ͋·Γʹ௕͍จষΛLLMʹ༩͑Δͱநग़͕͏·͍͖͘·ͤΜɻͦ͜ͰจॻΛҰ ߦ୯ҐͷΤϐιʔυܗࣜʹม׵ͯ͠౉͢ * ೔ຊޠͰ՝୊ͱͳΔͷ͸ʮओޠͷলུʯͰ͢ɻ͜͜͸ϓϩϯϓτͰ໌֬ʹରԠ͢Δඞཁ͕͋ Δɻ * Temporal Knowledge GraphͰ͸࣌ؒΛ෇༩্ͨ͠Ͱద੾ʹφϨοδΛ্ॻ͖͍ͨͨ͠Ίɺ ಉ͡ΤϯςΟςΟΛผͷΤϯςΟςΟͱͯ͠ѻͬͯ͠·͏ͷ͸க໋తɻ * LLMʹΑΔΤϯςΟςΟղܾ͕༳ΕΔ৔߹ɺϊʔυॏෳഉআɺΤοδॏෳഉআϩδοΫΛ ผͰߟ͑Δඞཁ͕͋Γ·͢ɻ͜ͷ՝୊ͷରॲ͸ݱࡏ୳ٻதɻ )JSPNV
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16. ·ͱΊ 15 * Temporal Knowledge Graph͸࣌ؒతͳφϨοδͷมԽΛଊ͑Δ͜ͱ͕Ͱ͖Δɻ * ࣌ؒೝࣝܕφϨοδݕࡧ͸҉໧తʹมԽ͍ͯ͘͠φϨοδΛѻ͏υϝΠϯͰ͸༗ޮ * GraphitiͰϙϯͰ͸·ͩ͏·͘ಈ͔ͳ͍ɻগ͠ίπ͕͍Δɻ )JSPNV
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    "VUVNO https://tech.layerx.co.jp/entry/tkg-agent ࠓ೔ͷ࿩Ҏ֎ʹ΋… * Knowledge Graph͕༗ޮͳλεΫͱ͸ʁ * GraphitiҎ֎ͷTKG࿦จͷ঺հ * φϨοδάϥϑͷධՁ
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